/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.13.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 00:39:14,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 00:39:14,696 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 00:39:14,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 00:39:14,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 00:39:14,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 00:39:14,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 00:39:14,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 00:39:14,735 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 00:39:14,738 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 00:39:14,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 00:39:14,738 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 00:39:14,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 00:39:14,739 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 00:39:14,740 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 00:39:14,740 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 00:39:14,740 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 00:39:14,740 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 00:39:14,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 00:39:14,740 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 00:39:14,741 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 00:39:14,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 00:39:14,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 00:39:14,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 00:39:14,741 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 00:39:14,742 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 00:39:14,742 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 00:39:14,742 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 00:39:14,742 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 00:39:14,742 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 00:39:14,743 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 00:39:14,743 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 00:39:14,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 00:39:14,744 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 00:39:14,744 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 00:39:14,744 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 00:39:14,744 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 00:39:14,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 00:39:14,744 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 00:39:14,744 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 00:39:14,745 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 00:39:14,745 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 00:39:14,745 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 00:39:14,745 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 00:39:14,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 00:39:14,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 00:39:14,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 00:39:14,942 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 00:39:14,943 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 00:39:14,943 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.13.cil-1.c [2023-12-16 00:39:15,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 00:39:16,399 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 00:39:16,400 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.13.cil-1.c [2023-12-16 00:39:16,443 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5e8a0249/c194128e4f7d4c939a8d4edba221707c/FLAGae332ec50 [2023-12-16 00:39:16,457 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5e8a0249/c194128e4f7d4c939a8d4edba221707c [2023-12-16 00:39:16,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 00:39:16,460 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 00:39:16,462 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 00:39:16,462 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 00:39:16,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 00:39:16,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:39:16" (1/1) ... [2023-12-16 00:39:16,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310c9c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:16, skipping insertion in model container [2023-12-16 00:39:16,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:39:16" (1/1) ... [2023-12-16 00:39:16,619 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 00:39:18,012 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.13.cil-1.c[380323,380336] [2023-12-16 00:39:18,033 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.13.cil-1.c[383339,383352] [2023-12-16 00:39:18,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 00:39:18,274 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 00:39:18,827 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.13.cil-1.c[380323,380336] [2023-12-16 00:39:18,832 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.13.cil-1.c[383339,383352] [2023-12-16 00:39:18,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 00:39:18,901 INFO L206 MainTranslator]: Completed translation [2023-12-16 00:39:18,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:18 WrapperNode [2023-12-16 00:39:18,901 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 00:39:18,902 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 00:39:18,902 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 00:39:18,902 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 00:39:18,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:18" (1/1) ... [2023-12-16 00:39:19,017 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:18" (1/1) ... [2023-12-16 00:39:19,221 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13299 [2023-12-16 00:39:19,222 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 00:39:19,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 00:39:19,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 00:39:19,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 00:39:19,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:18" (1/1) ... [2023-12-16 00:39:19,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:18" (1/1) ... [2023-12-16 00:39:19,276 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:18" (1/1) ... [2023-12-16 00:39:19,440 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]. [2023-12-16 00:39:19,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:18" (1/1) ... [2023-12-16 00:39:19,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:18" (1/1) ... [2023-12-16 00:39:19,616 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:18" (1/1) ... [2023-12-16 00:39:19,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:18" (1/1) ... [2023-12-16 00:39:19,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:18" (1/1) ... [2023-12-16 00:39:19,778 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:18" (1/1) ... [2023-12-16 00:39:19,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 00:39:19,940 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 00:39:19,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 00:39:19,941 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 00:39:19,941 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:18" (1/1) ... [2023-12-16 00:39:19,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 00:39:19,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:39:19,980 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) [2023-12-16 00:39:19,999 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 [2023-12-16 00:39:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 00:39:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 00:39:20,005 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 00:39:20,006 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 00:39:20,006 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 00:39:20,006 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 00:39:20,006 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 00:39:20,007 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-16 00:39:20,007 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-16 00:39:20,007 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 00:39:20,007 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 00:39:20,007 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 00:39:20,007 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 00:39:20,007 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 00:39:20,007 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 00:39:20,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 00:39:20,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 00:39:20,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 00:39:20,141 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 00:39:20,142 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 00:39:25,653 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 00:39:25,730 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 00:39:25,730 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-12-16 00:39:25,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:39:25 BoogieIcfgContainer [2023-12-16 00:39:25,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 00:39:25,732 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 00:39:25,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 00:39:25,735 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 00:39:25,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:39:16" (1/3) ... [2023-12-16 00:39:25,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73cfca57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:39:25, skipping insertion in model container [2023-12-16 00:39:25,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:39:18" (2/3) ... [2023-12-16 00:39:25,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73cfca57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:39:25, skipping insertion in model container [2023-12-16 00:39:25,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:39:25" (3/3) ... [2023-12-16 00:39:25,736 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.13.cil-1.c [2023-12-16 00:39:25,748 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 00:39:25,748 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 00:39:25,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 00:39:25,809 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;@75cd3e9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 00:39:25,809 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 00:39:25,817 INFO L276 IsEmpty]: Start isEmpty. Operand has 2502 states, 2463 states have (on average 1.8749492488834754) internal successors, (4618), 2468 states have internal predecessors, (4618), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 00:39:25,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:39:25,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:39:25,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:39:25,831 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:39:25,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:39:25,836 INFO L85 PathProgramCache]: Analyzing trace with hash 238799541, now seen corresponding path program 1 times [2023-12-16 00:39:25,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:39:25,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827951797] [2023-12-16 00:39:25,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:39:25,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:39:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:26,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:39:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:26,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:39:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:26,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:39:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:26,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:39:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:26,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:39:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:26,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:39:26,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:39:26,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827951797] [2023-12-16 00:39:26,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827951797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:39:26,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:39:26,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 00:39:26,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958635361] [2023-12-16 00:39:26,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:39:26,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 00:39:26,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:39:26,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 00:39:26,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 00:39:26,429 INFO L87 Difference]: Start difference. First operand has 2502 states, 2463 states have (on average 1.8749492488834754) internal successors, (4618), 2468 states have internal predecessors, (4618), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:28,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:39:28,297 INFO L93 Difference]: Finished difference Result 5137 states and 9590 transitions. [2023-12-16 00:39:28,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 00:39:28,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:39:28,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:39:28,316 INFO L225 Difference]: With dead ends: 5137 [2023-12-16 00:39:28,316 INFO L226 Difference]: Without dead ends: 2637 [2023-12-16 00:39:28,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 00:39:28,325 INFO L413 NwaCegarLoop]: 4287 mSDtfsCounter, 1062 mSDsluCounter, 12244 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 16531 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:39:28,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 16531 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 00:39:28,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2023-12-16 00:39:28,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2497. [2023-12-16 00:39:28,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2497 states, 2460 states have (on average 1.8357723577235772) internal successors, (4516), 2463 states have internal predecessors, (4516), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-16 00:39:28,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 4572 transitions. [2023-12-16 00:39:28,419 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 4572 transitions. Word has length 172 [2023-12-16 00:39:28,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:39:28,419 INFO L495 AbstractCegarLoop]: Abstraction has 2497 states and 4572 transitions. [2023-12-16 00:39:28,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:28,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 4572 transitions. [2023-12-16 00:39:28,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:39:28,422 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:39:28,423 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:39:28,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 00:39:28,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:39:28,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:39:28,423 INFO L85 PathProgramCache]: Analyzing trace with hash -259757261, now seen corresponding path program 1 times [2023-12-16 00:39:28,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:39:28,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463346990] [2023-12-16 00:39:28,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:39:28,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:39:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:28,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:39:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:28,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:39:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:28,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:39:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:28,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:39:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:28,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:39:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:28,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:39:28,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:39:28,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463346990] [2023-12-16 00:39:28,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463346990] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:39:28,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:39:28,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 00:39:28,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375253310] [2023-12-16 00:39:28,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:39:28,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 00:39:28,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:39:28,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 00:39:28,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 00:39:28,663 INFO L87 Difference]: Start difference. First operand 2497 states and 4572 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:30,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:39:30,355 INFO L93 Difference]: Finished difference Result 2998 states and 5410 transitions. [2023-12-16 00:39:30,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 00:39:30,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:39:30,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:39:30,364 INFO L225 Difference]: With dead ends: 2998 [2023-12-16 00:39:30,364 INFO L226 Difference]: Without dead ends: 2637 [2023-12-16 00:39:30,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 00:39:30,367 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 1050 mSDsluCounter, 12235 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 16518 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 00:39:30,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 16518 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 00:39:30,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2023-12-16 00:39:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2497. [2023-12-16 00:39:30,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2497 states, 2460 states have (on average 1.8353658536585367) internal successors, (4515), 2463 states have internal predecessors, (4515), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-16 00:39:30,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 4571 transitions. [2023-12-16 00:39:30,413 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 4571 transitions. Word has length 172 [2023-12-16 00:39:30,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:39:30,413 INFO L495 AbstractCegarLoop]: Abstraction has 2497 states and 4571 transitions. [2023-12-16 00:39:30,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:30,414 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 4571 transitions. [2023-12-16 00:39:30,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:39:30,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:39:30,415 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:39:30,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 00:39:30,416 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:39:30,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:39:30,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1509714353, now seen corresponding path program 1 times [2023-12-16 00:39:30,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:39:30,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482083823] [2023-12-16 00:39:30,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:39:30,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:39:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:39:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:30,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:39:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:30,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:39:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:39:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:30,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:39:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:30,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:39:30,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:39:30,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482083823] [2023-12-16 00:39:30,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482083823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:39:30,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:39:30,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 00:39:30,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156902237] [2023-12-16 00:39:30,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:39:30,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 00:39:30,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:39:30,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 00:39:30,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 00:39:30,708 INFO L87 Difference]: Start difference. First operand 2497 states and 4571 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:33,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:39:33,528 INFO L93 Difference]: Finished difference Result 3512 states and 6275 transitions. [2023-12-16 00:39:33,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 00:39:33,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:39:33,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:39:33,538 INFO L225 Difference]: With dead ends: 3512 [2023-12-16 00:39:33,538 INFO L226 Difference]: Without dead ends: 3155 [2023-12-16 00:39:33,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:39:33,541 INFO L413 NwaCegarLoop]: 4249 mSDtfsCounter, 5558 mSDsluCounter, 12746 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5578 SdHoareTripleChecker+Valid, 16995 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:39:33,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5578 Valid, 16995 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 00:39:33,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3155 states. [2023-12-16 00:39:33,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3155 to 2874. [2023-12-16 00:39:33,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2808 states have (on average 1.8133903133903133) internal successors, (5092), 2812 states have internal predecessors, (5092), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2023-12-16 00:39:33,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5195 transitions. [2023-12-16 00:39:33,608 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5195 transitions. Word has length 172 [2023-12-16 00:39:33,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:39:33,609 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5195 transitions. [2023-12-16 00:39:33,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:33,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5195 transitions. [2023-12-16 00:39:33,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:39:33,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:39:33,611 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:39:33,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 00:39:33,611 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:39:33,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:39:33,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1780147667, now seen corresponding path program 1 times [2023-12-16 00:39:33,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:39:33,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48055836] [2023-12-16 00:39:33,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:39:33,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:39:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:33,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:39:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:33,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:39:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:33,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:39:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:33,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:39:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:33,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:39:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:33,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:39:33,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:39:33,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48055836] [2023-12-16 00:39:33,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48055836] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:39:33,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:39:33,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:39:33,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273446891] [2023-12-16 00:39:33,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:39:33,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:39:33,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:39:33,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:39:33,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:39:33,934 INFO L87 Difference]: Start difference. First operand 2874 states and 5195 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:37,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:39:37,893 INFO L93 Difference]: Finished difference Result 4427 states and 7805 transitions. [2023-12-16 00:39:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:39:37,895 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:39:37,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:39:37,906 INFO L225 Difference]: With dead ends: 4427 [2023-12-16 00:39:37,907 INFO L226 Difference]: Without dead ends: 3693 [2023-12-16 00:39:37,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:39:37,910 INFO L413 NwaCegarLoop]: 4471 mSDtfsCounter, 5605 mSDsluCounter, 17546 mSDsCounter, 0 mSdLazyCounter, 4012 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5625 SdHoareTripleChecker+Valid, 22017 SdHoareTripleChecker+Invalid, 4079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 00:39:37,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5625 Valid, 22017 Invalid, 4079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 4012 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 00:39:37,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2023-12-16 00:39:38,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3222. [2023-12-16 00:39:38,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3127 states have (on average 1.7943716021746083) internal successors, (5611), 3132 states have internal predecessors, (5611), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-16 00:39:38,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 5760 transitions. [2023-12-16 00:39:38,045 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 5760 transitions. Word has length 172 [2023-12-16 00:39:38,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:39:38,046 INFO L495 AbstractCegarLoop]: Abstraction has 3222 states and 5760 transitions. [2023-12-16 00:39:38,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:38,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 5760 transitions. [2023-12-16 00:39:38,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:39:38,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:39:38,047 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:39:38,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 00:39:38,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:39:38,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:39:38,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1394285265, now seen corresponding path program 1 times [2023-12-16 00:39:38,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:39:38,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521617739] [2023-12-16 00:39:38,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:39:38,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:39:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:38,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:39:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:38,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:39:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:38,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:39:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:38,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:39:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:38,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:39:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:38,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:39:38,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:39:38,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521617739] [2023-12-16 00:39:38,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521617739] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:39:38,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:39:38,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:39:38,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674339958] [2023-12-16 00:39:38,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:39:38,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:39:38,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:39:38,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:39:38,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:39:38,298 INFO L87 Difference]: Start difference. First operand 3222 states and 5760 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:40,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:39:40,098 INFO L93 Difference]: Finished difference Result 4793 states and 8414 transitions. [2023-12-16 00:39:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:39:40,099 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:39:40,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:39:40,111 INFO L225 Difference]: With dead ends: 4793 [2023-12-16 00:39:40,111 INFO L226 Difference]: Without dead ends: 3711 [2023-12-16 00:39:40,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:39:40,116 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 5129 mSDsluCounter, 16691 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5150 SdHoareTripleChecker+Valid, 20927 SdHoareTripleChecker+Invalid, 2122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:39:40,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5150 Valid, 20927 Invalid, 2122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 00:39:40,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3711 states. [2023-12-16 00:39:40,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3711 to 3222. [2023-12-16 00:39:40,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3127 states have (on average 1.7934122161816437) internal successors, (5608), 3132 states have internal predecessors, (5608), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-16 00:39:40,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 5757 transitions. [2023-12-16 00:39:40,192 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 5757 transitions. Word has length 172 [2023-12-16 00:39:40,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:39:40,192 INFO L495 AbstractCegarLoop]: Abstraction has 3222 states and 5757 transitions. [2023-12-16 00:39:40,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:40,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 5757 transitions. [2023-12-16 00:39:40,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:39:40,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:39:40,194 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:39:40,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 00:39:40,194 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:39:40,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:39:40,194 INFO L85 PathProgramCache]: Analyzing trace with hash 536840369, now seen corresponding path program 1 times [2023-12-16 00:39:40,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:39:40,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963665469] [2023-12-16 00:39:40,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:39:40,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:39:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:40,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:39:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:40,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:39:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:40,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:39:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:40,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:39:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:40,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:39:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:40,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:39:40,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:39:40,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963665469] [2023-12-16 00:39:40,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963665469] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:39:40,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:39:40,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:39:40,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130717226] [2023-12-16 00:39:40,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:39:40,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:39:40,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:39:40,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:39:40,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:39:40,416 INFO L87 Difference]: Start difference. First operand 3222 states and 5757 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:42,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:39:42,490 INFO L93 Difference]: Finished difference Result 4789 states and 8397 transitions. [2023-12-16 00:39:42,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:39:42,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:39:42,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:39:42,501 INFO L225 Difference]: With dead ends: 4789 [2023-12-16 00:39:42,501 INFO L226 Difference]: Without dead ends: 3707 [2023-12-16 00:39:42,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:39:42,504 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 5127 mSDsluCounter, 16691 mSDsCounter, 0 mSdLazyCounter, 2035 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5148 SdHoareTripleChecker+Valid, 20927 SdHoareTripleChecker+Invalid, 2106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 00:39:42,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5148 Valid, 20927 Invalid, 2106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2035 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 00:39:42,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2023-12-16 00:39:42,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3222. [2023-12-16 00:39:42,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3127 states have (on average 1.7924528301886793) internal successors, (5605), 3132 states have internal predecessors, (5605), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-16 00:39:42,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 5754 transitions. [2023-12-16 00:39:42,572 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 5754 transitions. Word has length 172 [2023-12-16 00:39:42,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:39:42,572 INFO L495 AbstractCegarLoop]: Abstraction has 3222 states and 5754 transitions. [2023-12-16 00:39:42,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:42,573 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 5754 transitions. [2023-12-16 00:39:42,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:39:42,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:39:42,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:39:42,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 00:39:42,574 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:39:42,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:39:42,575 INFO L85 PathProgramCache]: Analyzing trace with hash -786338577, now seen corresponding path program 1 times [2023-12-16 00:39:42,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:39:42,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373556598] [2023-12-16 00:39:42,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:39:42,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:39:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:42,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:39:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:42,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:39:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:42,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:39:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:42,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:39:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:42,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:39:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:42,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:39:42,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:39:42,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373556598] [2023-12-16 00:39:42,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373556598] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:39:42,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:39:42,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:39:42,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298352414] [2023-12-16 00:39:42,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:39:42,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:39:42,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:39:42,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:39:42,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:39:42,775 INFO L87 Difference]: Start difference. First operand 3222 states and 5754 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:44,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:39:44,733 INFO L93 Difference]: Finished difference Result 4785 states and 8380 transitions. [2023-12-16 00:39:44,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:39:44,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:39:44,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:39:44,743 INFO L225 Difference]: With dead ends: 4785 [2023-12-16 00:39:44,743 INFO L226 Difference]: Without dead ends: 3703 [2023-12-16 00:39:44,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:39:44,746 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 5125 mSDsluCounter, 16691 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5146 SdHoareTripleChecker+Valid, 20927 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 00:39:44,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5146 Valid, 20927 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 00:39:44,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3703 states. [2023-12-16 00:39:44,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3703 to 3222. [2023-12-16 00:39:44,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3127 states have (on average 1.7914934441957147) internal successors, (5602), 3132 states have internal predecessors, (5602), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-16 00:39:44,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 5751 transitions. [2023-12-16 00:39:44,868 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 5751 transitions. Word has length 172 [2023-12-16 00:39:44,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:39:44,869 INFO L495 AbstractCegarLoop]: Abstraction has 3222 states and 5751 transitions. [2023-12-16 00:39:44,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:44,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 5751 transitions. [2023-12-16 00:39:44,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:39:44,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:39:44,870 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:39:44,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 00:39:44,870 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:39:44,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:39:44,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1110640881, now seen corresponding path program 1 times [2023-12-16 00:39:44,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:39:44,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587445578] [2023-12-16 00:39:44,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:39:44,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:39:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:44,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:39:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:45,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:39:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:45,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:39:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:45,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:39:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:45,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:39:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:45,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:39:45,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:39:45,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587445578] [2023-12-16 00:39:45,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587445578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:39:45,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:39:45,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:39:45,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664776711] [2023-12-16 00:39:45,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:39:45,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:39:45,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:39:45,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:39:45,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:39:45,088 INFO L87 Difference]: Start difference. First operand 3222 states and 5751 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:48,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:39:48,347 INFO L93 Difference]: Finished difference Result 5755 states and 9966 transitions. [2023-12-16 00:39:48,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:39:48,348 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:39:48,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:39:48,418 INFO L225 Difference]: With dead ends: 5755 [2023-12-16 00:39:48,418 INFO L226 Difference]: Without dead ends: 4673 [2023-12-16 00:39:48,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:39:48,422 INFO L413 NwaCegarLoop]: 4258 mSDtfsCounter, 5690 mSDsluCounter, 16967 mSDsCounter, 0 mSdLazyCounter, 3263 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5710 SdHoareTripleChecker+Valid, 21225 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 00:39:48,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5710 Valid, 21225 Invalid, 3374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 3263 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 00:39:48,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4673 states. [2023-12-16 00:39:48,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4673 to 3931. [2023-12-16 00:39:48,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3931 states, 3778 states have (on average 1.7609846479618847) internal successors, (6653), 3785 states have internal predecessors, (6653), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-16 00:39:48,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3931 states to 3931 states and 6898 transitions. [2023-12-16 00:39:48,507 INFO L78 Accepts]: Start accepts. Automaton has 3931 states and 6898 transitions. Word has length 172 [2023-12-16 00:39:48,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:39:48,508 INFO L495 AbstractCegarLoop]: Abstraction has 3931 states and 6898 transitions. [2023-12-16 00:39:48,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:48,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3931 states and 6898 transitions. [2023-12-16 00:39:48,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:39:48,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:39:48,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:39:48,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 00:39:48,511 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:39:48,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:39:48,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1448928431, now seen corresponding path program 1 times [2023-12-16 00:39:48,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:39:48,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466840207] [2023-12-16 00:39:48,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:39:48,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:39:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:48,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:39:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:48,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:39:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:48,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:39:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:48,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:39:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:48,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:39:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:48,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:39:48,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:39:48,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466840207] [2023-12-16 00:39:48,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466840207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:39:48,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:39:48,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:39:48,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90804083] [2023-12-16 00:39:48,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:39:48,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:39:48,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:39:48,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:39:48,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:39:48,708 INFO L87 Difference]: Start difference. First operand 3931 states and 6898 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:50,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:39:50,517 INFO L93 Difference]: Finished difference Result 6449 states and 11099 transitions. [2023-12-16 00:39:50,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:39:50,517 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:39:50,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:39:50,526 INFO L225 Difference]: With dead ends: 6449 [2023-12-16 00:39:50,526 INFO L226 Difference]: Without dead ends: 4658 [2023-12-16 00:39:50,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:39:50,531 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 5124 mSDsluCounter, 16691 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5145 SdHoareTripleChecker+Valid, 20927 SdHoareTripleChecker+Invalid, 2064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:39:50,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5145 Valid, 20927 Invalid, 2064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 00:39:50,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2023-12-16 00:39:50,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 3931. [2023-12-16 00:39:50,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3931 states, 3778 states have (on average 1.7596611964002118) internal successors, (6648), 3785 states have internal predecessors, (6648), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-16 00:39:50,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3931 states to 3931 states and 6893 transitions. [2023-12-16 00:39:50,614 INFO L78 Accepts]: Start accepts. Automaton has 3931 states and 6893 transitions. Word has length 172 [2023-12-16 00:39:50,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:39:50,614 INFO L495 AbstractCegarLoop]: Abstraction has 3931 states and 6893 transitions. [2023-12-16 00:39:50,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:50,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3931 states and 6893 transitions. [2023-12-16 00:39:50,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:39:50,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:39:50,616 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:39:50,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 00:39:50,616 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:39:50,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:39:50,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1875482929, now seen corresponding path program 1 times [2023-12-16 00:39:50,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:39:50,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612667309] [2023-12-16 00:39:50,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:39:50,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:39:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:50,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:39:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:50,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:39:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:50,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:39:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:50,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:39:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:50,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:39:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:50,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:39:50,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:39:50,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612667309] [2023-12-16 00:39:50,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612667309] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:39:50,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:39:50,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:39:50,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124337690] [2023-12-16 00:39:50,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:39:50,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:39:50,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:39:50,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:39:50,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:39:50,822 INFO L87 Difference]: Start difference. First operand 3931 states and 6893 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:54,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:39:54,448 INFO L93 Difference]: Finished difference Result 8326 states and 14153 transitions. [2023-12-16 00:39:54,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:39:54,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:39:54,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:39:54,466 INFO L225 Difference]: With dead ends: 8326 [2023-12-16 00:39:54,466 INFO L226 Difference]: Without dead ends: 6535 [2023-12-16 00:39:54,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:39:54,473 INFO L413 NwaCegarLoop]: 4469 mSDtfsCounter, 5570 mSDsluCounter, 17546 mSDsCounter, 0 mSdLazyCounter, 3878 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5590 SdHoareTripleChecker+Valid, 22015 SdHoareTripleChecker+Invalid, 3947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:39:54,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5590 Valid, 22015 Invalid, 3947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3878 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 00:39:54,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6535 states. [2023-12-16 00:39:54,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6535 to 5349. [2023-12-16 00:39:54,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5349 states, 5080 states have (on average 1.720472440944882) internal successors, (8740), 5091 states have internal predecessors, (8740), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2023-12-16 00:39:54,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5349 states to 5349 states and 9183 transitions. [2023-12-16 00:39:54,660 INFO L78 Accepts]: Start accepts. Automaton has 5349 states and 9183 transitions. Word has length 172 [2023-12-16 00:39:54,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:39:54,660 INFO L495 AbstractCegarLoop]: Abstraction has 5349 states and 9183 transitions. [2023-12-16 00:39:54,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:54,661 INFO L276 IsEmpty]: Start isEmpty. Operand 5349 states and 9183 transitions. [2023-12-16 00:39:54,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:39:54,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:39:54,663 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:39:54,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 00:39:54,663 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:39:54,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:39:54,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1335053423, now seen corresponding path program 1 times [2023-12-16 00:39:54,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:39:54,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030446624] [2023-12-16 00:39:54,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:39:54,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:39:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:54,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:39:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:54,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:39:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:54,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:39:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:54,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:39:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:54,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:39:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:54,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:39:54,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:39:54,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030446624] [2023-12-16 00:39:54,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030446624] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:39:54,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:39:54,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:39:54,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586528009] [2023-12-16 00:39:54,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:39:54,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:39:54,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:39:54,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:39:54,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:39:54,855 INFO L87 Difference]: Start difference. First operand 5349 states and 9183 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:58,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:39:58,500 INFO L93 Difference]: Finished difference Result 13474 states and 22581 transitions. [2023-12-16 00:39:58,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:39:58,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:39:58,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:39:58,522 INFO L225 Difference]: With dead ends: 13474 [2023-12-16 00:39:58,522 INFO L226 Difference]: Without dead ends: 10265 [2023-12-16 00:39:58,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:39:58,531 INFO L413 NwaCegarLoop]: 4469 mSDtfsCounter, 5575 mSDsluCounter, 17546 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5595 SdHoareTripleChecker+Valid, 22015 SdHoareTripleChecker+Invalid, 3929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:39:58,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5595 Valid, 22015 Invalid, 3929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3860 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 00:39:58,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10265 states. [2023-12-16 00:39:58,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10265 to 8190. [2023-12-16 00:39:58,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8190 states, 7689 states have (on average 1.6816230979321107) internal successors, (12930), 7708 states have internal predecessors, (12930), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-16 00:39:58,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8190 states to 8190 states and 13787 transitions. [2023-12-16 00:39:58,757 INFO L78 Accepts]: Start accepts. Automaton has 8190 states and 13787 transitions. Word has length 172 [2023-12-16 00:39:58,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:39:58,757 INFO L495 AbstractCegarLoop]: Abstraction has 8190 states and 13787 transitions. [2023-12-16 00:39:58,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:39:58,757 INFO L276 IsEmpty]: Start isEmpty. Operand 8190 states and 13787 transitions. [2023-12-16 00:39:58,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:39:58,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:39:58,762 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:39:58,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 00:39:58,762 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:39:58,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:39:58,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1179072881, now seen corresponding path program 1 times [2023-12-16 00:39:58,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:39:58,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744207544] [2023-12-16 00:39:58,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:39:58,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:39:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:58,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:39:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:58,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:39:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:58,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:39:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:58,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:39:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:58,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:39:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:39:58,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:39:58,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:39:58,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744207544] [2023-12-16 00:39:58,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744207544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:39:58,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:39:58,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:39:58,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402370581] [2023-12-16 00:39:58,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:39:58,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:39:58,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:39:58,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:39:58,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:39:58,961 INFO L87 Difference]: Start difference. First operand 8190 states and 13787 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:40:00,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:40:00,654 INFO L93 Difference]: Finished difference Result 16387 states and 27400 transitions. [2023-12-16 00:40:00,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:40:00,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:40:00,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:40:00,676 INFO L225 Difference]: With dead ends: 16387 [2023-12-16 00:40:00,676 INFO L226 Difference]: Without dead ends: 10337 [2023-12-16 00:40:00,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:40:00,692 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 5292 mSDsluCounter, 12552 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5313 SdHoareTripleChecker+Valid, 16788 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 00:40:00,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5313 Valid, 16788 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 00:40:00,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10337 states. [2023-12-16 00:40:00,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10337 to 8190. [2023-12-16 00:40:00,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8190 states, 7689 states have (on average 1.6794121472233061) internal successors, (12913), 7708 states have internal predecessors, (12913), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-16 00:40:00,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8190 states to 8190 states and 13770 transitions. [2023-12-16 00:40:00,913 INFO L78 Accepts]: Start accepts. Automaton has 8190 states and 13770 transitions. Word has length 172 [2023-12-16 00:40:00,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:40:00,914 INFO L495 AbstractCegarLoop]: Abstraction has 8190 states and 13770 transitions. [2023-12-16 00:40:00,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:40:00,914 INFO L276 IsEmpty]: Start isEmpty. Operand 8190 states and 13770 transitions. [2023-12-16 00:40:00,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:40:00,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:40:00,917 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:40:00,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 00:40:00,918 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:40:00,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:40:00,918 INFO L85 PathProgramCache]: Analyzing trace with hash -608796941, now seen corresponding path program 1 times [2023-12-16 00:40:00,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:40:00,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258664251] [2023-12-16 00:40:00,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:40:00,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:40:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:00,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:40:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:01,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:40:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:01,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:40:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:01,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:40:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:01,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:40:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:01,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:40:01,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:40:01,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258664251] [2023-12-16 00:40:01,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258664251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:40:01,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:40:01,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:40:01,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601858927] [2023-12-16 00:40:01,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:40:01,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:40:01,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:40:01,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:40:01,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:40:01,094 INFO L87 Difference]: Start difference. First operand 8190 states and 13770 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:40:02,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:40:02,775 INFO L93 Difference]: Finished difference Result 16369 states and 27313 transitions. [2023-12-16 00:40:02,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:40:02,776 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:40:02,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:40:02,799 INFO L225 Difference]: With dead ends: 16369 [2023-12-16 00:40:02,799 INFO L226 Difference]: Without dead ends: 10319 [2023-12-16 00:40:02,814 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 [2023-12-16 00:40:02,815 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 5290 mSDsluCounter, 12552 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5311 SdHoareTripleChecker+Valid, 16788 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:40:02,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5311 Valid, 16788 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 00:40:02,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10319 states. [2023-12-16 00:40:03,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10319 to 8190. [2023-12-16 00:40:03,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8190 states, 7689 states have (on average 1.6772011965145013) internal successors, (12896), 7708 states have internal predecessors, (12896), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-16 00:40:03,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8190 states to 8190 states and 13753 transitions. [2023-12-16 00:40:03,038 INFO L78 Accepts]: Start accepts. Automaton has 8190 states and 13753 transitions. Word has length 172 [2023-12-16 00:40:03,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:40:03,038 INFO L495 AbstractCegarLoop]: Abstraction has 8190 states and 13753 transitions. [2023-12-16 00:40:03,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:40:03,038 INFO L276 IsEmpty]: Start isEmpty. Operand 8190 states and 13753 transitions. [2023-12-16 00:40:03,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:40:03,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:40:03,042 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:40:03,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 00:40:03,043 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:40:03,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:40:03,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1550287153, now seen corresponding path program 1 times [2023-12-16 00:40:03,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:40:03,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516366127] [2023-12-16 00:40:03,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:40:03,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:40:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:03,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:40:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:03,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:40:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:03,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:40:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:03,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:40:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:03,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:40:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:03,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:40:03,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:40:03,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516366127] [2023-12-16 00:40:03,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516366127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:40:03,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:40:03,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:40:03,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827444064] [2023-12-16 00:40:03,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:40:03,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:40:03,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:40:03,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:40:03,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:40:03,213 INFO L87 Difference]: Start difference. First operand 8190 states and 13753 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:40:07,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:40:07,001 INFO L93 Difference]: Finished difference Result 23715 states and 39219 transitions. [2023-12-16 00:40:07,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:40:07,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:40:07,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:40:07,035 INFO L225 Difference]: With dead ends: 23715 [2023-12-16 00:40:07,035 INFO L226 Difference]: Without dead ends: 17665 [2023-12-16 00:40:07,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:40:07,048 INFO L413 NwaCegarLoop]: 4469 mSDtfsCounter, 5556 mSDsluCounter, 17546 mSDsCounter, 0 mSdLazyCounter, 3783 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5576 SdHoareTripleChecker+Valid, 22015 SdHoareTripleChecker+Invalid, 3852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:40:07,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5576 Valid, 22015 Invalid, 3852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3783 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 00:40:07,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17665 states. [2023-12-16 00:40:07,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17665 to 13938. [2023-12-16 00:40:07,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13938 states, 12973 states have (on average 1.6446465736529716) internal successors, (21336), 13008 states have internal predecessors, (21336), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2023-12-16 00:40:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13938 states to 13938 states and 23075 transitions. [2023-12-16 00:40:07,453 INFO L78 Accepts]: Start accepts. Automaton has 13938 states and 23075 transitions. Word has length 172 [2023-12-16 00:40:07,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:40:07,453 INFO L495 AbstractCegarLoop]: Abstraction has 13938 states and 23075 transitions. [2023-12-16 00:40:07,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:40:07,453 INFO L276 IsEmpty]: Start isEmpty. Operand 13938 states and 23075 transitions. [2023-12-16 00:40:07,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:40:07,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:40:07,459 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:40:07,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 00:40:07,460 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:40:07,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:40:07,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1619935027, now seen corresponding path program 1 times [2023-12-16 00:40:07,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:40:07,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505998885] [2023-12-16 00:40:07,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:40:07,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:40:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:07,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:40:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:07,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:40:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:07,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:40:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:07,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:40:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:07,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:40:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:07,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:40:07,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:40:07,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505998885] [2023-12-16 00:40:07,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505998885] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:40:07,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:40:07,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:40:07,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132095060] [2023-12-16 00:40:07,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:40:07,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:40:07,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:40:07,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:40:07,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:40:07,636 INFO L87 Difference]: Start difference. First operand 13938 states and 23075 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:40:11,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:40:11,625 INFO L93 Difference]: Finished difference Result 49557 states and 81601 transitions. [2023-12-16 00:40:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 00:40:11,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:40:11,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:40:11,717 INFO L225 Difference]: With dead ends: 49557 [2023-12-16 00:40:11,717 INFO L226 Difference]: Without dead ends: 37759 [2023-12-16 00:40:11,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 00:40:11,752 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 6122 mSDsluCounter, 16965 mSDsCounter, 0 mSdLazyCounter, 3169 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6156 SdHoareTripleChecker+Valid, 21225 SdHoareTripleChecker+Invalid, 3283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 3169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:40:11,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6156 Valid, 21225 Invalid, 3283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 3169 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 00:40:11,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37759 states. [2023-12-16 00:40:12,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37759 to 25395. [2023-12-16 00:40:12,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25395 states, 23534 states have (on average 1.6239483300756352) internal successors, (38218), 23601 states have internal predecessors, (38218), 1405 states have call successors, (1405), 391 states have call predecessors, (1405), 454 states have return successors, (2196), 1466 states have call predecessors, (2196), 1403 states have call successors, (2196) [2023-12-16 00:40:12,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25395 states to 25395 states and 41819 transitions. [2023-12-16 00:40:12,767 INFO L78 Accepts]: Start accepts. Automaton has 25395 states and 41819 transitions. Word has length 172 [2023-12-16 00:40:12,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:40:12,768 INFO L495 AbstractCegarLoop]: Abstraction has 25395 states and 41819 transitions. [2023-12-16 00:40:12,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:40:12,768 INFO L276 IsEmpty]: Start isEmpty. Operand 25395 states and 41819 transitions. [2023-12-16 00:40:12,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:40:12,779 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:40:12,779 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:40:12,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 00:40:12,779 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:40:12,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:40:12,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2037823729, now seen corresponding path program 1 times [2023-12-16 00:40:12,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:40:12,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623913343] [2023-12-16 00:40:12,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:40:12,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:40:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:12,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:40:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:12,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:40:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:12,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:40:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:12,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:40:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:12,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:40:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:40:12,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:40:12,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:40:12,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623913343] [2023-12-16 00:40:12,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623913343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:40:12,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:40:12,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:40:12,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130093583] [2023-12-16 00:40:12,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:40:12,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:40:12,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:40:12,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:40:12,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:40:12,974 INFO L87 Difference]: Start difference. First operand 25395 states and 41819 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Received shutdown request... [2023-12-16 00:40:13,097 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 00:40:13,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:40:13,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:40:13,145 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 00:40:13,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 00:40:13,148 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 00:40:13,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 00:40:13,148 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (25395states) and FLOYD_HOARE automaton (currently 3 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-43-1 term,while SimplifyDDA2 was simplifying 43 xjuncts wrt. a ATOM-1 context. [2023-12-16 00:40:13,149 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 00:40:13,151 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:40:13,154 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 00:40:13,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:40:13 BoogieIcfgContainer [2023-12-16 00:40:13,157 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 00:40:13,157 INFO L158 Benchmark]: Toolchain (without parser) took 56697.17ms. Allocated memory was 183.5MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 114.1MB in the beginning and 802.8MB in the end (delta: -688.7MB). Peak memory consumption was 530.8MB. Max. memory is 8.0GB. [2023-12-16 00:40:13,157 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 00:40:13,157 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2440.06ms. Allocated memory was 183.5MB in the beginning and 243.3MB in the end (delta: 59.8MB). Free memory was 114.1MB in the beginning and 80.5MB in the end (delta: 33.6MB). Peak memory consumption was 104.4MB. Max. memory is 8.0GB. [2023-12-16 00:40:13,158 INFO L158 Benchmark]: Boogie Procedure Inliner took 319.64ms. Allocated memory is still 243.3MB. Free memory was 80.5MB in the beginning and 77.9MB in the end (delta: 2.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-16 00:40:13,158 INFO L158 Benchmark]: Boogie Preprocessor took 716.73ms. Allocated memory was 243.3MB in the beginning and 432.0MB in the end (delta: 188.7MB). Free memory was 77.9MB in the beginning and 283.9MB in the end (delta: -206.0MB). Peak memory consumption was 73.4MB. Max. memory is 8.0GB. [2023-12-16 00:40:13,158 INFO L158 Benchmark]: RCFGBuilder took 5790.66ms. Allocated memory was 432.0MB in the beginning and 861.9MB in the end (delta: 429.9MB). Free memory was 283.9MB in the beginning and 341.6MB in the end (delta: -57.7MB). Peak memory consumption was 373.3MB. Max. memory is 8.0GB. [2023-12-16 00:40:13,158 INFO L158 Benchmark]: TraceAbstraction took 47424.27ms. Allocated memory was 861.9MB in the beginning and 1.4GB in the end (delta: 540.0MB). Free memory was 341.1MB in the beginning and 802.8MB in the end (delta: -461.7MB). Peak memory consumption was 78.3MB. Max. memory is 8.0GB. [2023-12-16 00:40:13,161 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2440.06ms. Allocated memory was 183.5MB in the beginning and 243.3MB in the end (delta: 59.8MB). Free memory was 114.1MB in the beginning and 80.5MB in the end (delta: 33.6MB). Peak memory consumption was 104.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 319.64ms. Allocated memory is still 243.3MB. Free memory was 80.5MB in the beginning and 77.9MB in the end (delta: 2.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 716.73ms. Allocated memory was 243.3MB in the beginning and 432.0MB in the end (delta: 188.7MB). Free memory was 77.9MB in the beginning and 283.9MB in the end (delta: -206.0MB). Peak memory consumption was 73.4MB. Max. memory is 8.0GB. * RCFGBuilder took 5790.66ms. Allocated memory was 432.0MB in the beginning and 861.9MB in the end (delta: 429.9MB). Free memory was 283.9MB in the beginning and 341.6MB in the end (delta: -57.7MB). Peak memory consumption was 373.3MB. Max. memory is 8.0GB. * TraceAbstraction took 47424.27ms. Allocated memory was 861.9MB in the beginning and 1.4GB in the end (delta: 540.0MB). Free memory was 341.1MB in the beginning and 802.8MB in the end (delta: -461.7MB). Peak memory consumption was 78.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while NwaCegarLoop was constructing difference of abstraction (25395states) and FLOYD_HOARE automaton (currently 3 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-43-1 term,while SimplifyDDA2 was simplifying 43 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 11088]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11088). Cancelled while NwaCegarLoop was constructing difference of abstraction (25395states) and FLOYD_HOARE automaton (currently 3 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-43-1 term,while SimplifyDDA2 was simplifying 43 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 2502 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 47.4s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 40.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73207 SdHoareTripleChecker+Valid, 28.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72877 mSDsluCounter, 297846 SdHoareTripleChecker+Invalid, 24.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 233213 mSDsCounter, 1229 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38339 IncrementalHoareTripleChecker+Invalid, 39568 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1229 mSolverCounterUnsat, 64633 mSDtfsCounter, 38339 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 364 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25395occurred in iteration=15, InterpolantAutomatonStates: 149, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 15 MinimizatonAttempts, 27584 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 2752 NumberOfCodeBlocks, 2752 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2736 ConstructedInterpolants, 0 QuantifiedInterpolants, 8061 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown