/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_label42+token_ring.09.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 00:33:49,953 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 00:33:49,997 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 00:33:50,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 00:33:50,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 00:33:50,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 00:33:50,013 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 00:33:50,014 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 00:33:50,014 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 00:33:50,014 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 00:33:50,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 00:33:50,015 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 00:33:50,015 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 00:33:50,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 00:33:50,016 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 00:33:50,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 00:33:50,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 00:33:50,016 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 00:33:50,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 00:33:50,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 00:33:50,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 00:33:50,017 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 00:33:50,018 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 00:33:50,018 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 00:33:50,018 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 00:33:50,018 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 00:33:50,018 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 00:33:50,019 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 00:33:50,019 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 00:33:50,019 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 00:33:50,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 00:33:50,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 00:33:50,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 00:33:50,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 00:33:50,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 00:33:50,020 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 00:33:50,020 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 00:33:50,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 00:33:50,021 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 00:33:50,021 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 00:33:50,021 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 00:33:50,022 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 00:33:50,022 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 00:33:50,022 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 00:33:50,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 00:33:50,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 00:33:50,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 00:33:50,242 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 00:33:50,242 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 00:33:50,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label42+token_ring.09.cil-1.c [2023-12-16 00:33:51,344 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 00:33:51,817 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 00:33:51,818 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.09.cil-1.c [2023-12-16 00:33:51,865 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/285d15d9d/85e924621eee4ab5bfb64fd58d96de43/FLAG50618d2e6 [2023-12-16 00:33:51,879 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/285d15d9d/85e924621eee4ab5bfb64fd58d96de43 [2023-12-16 00:33:51,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 00:33:51,883 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 00:33:51,884 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 00:33:51,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 00:33:51,887 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 00:33:51,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:33:51" (1/1) ... [2023-12-16 00:33:51,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@520c6141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:51, skipping insertion in model container [2023-12-16 00:33:51,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:33:51" (1/1) ... [2023-12-16 00:33:52,070 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 00:33:53,264 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_label42+token_ring.09.cil-1.c[378560,378573] [2023-12-16 00:33:53,285 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_label42+token_ring.09.cil-1.c[383339,383352] [2023-12-16 00:33:53,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 00:33:53,536 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 00:33:54,134 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_label42+token_ring.09.cil-1.c[378560,378573] [2023-12-16 00:33:54,139 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_label42+token_ring.09.cil-1.c[383339,383352] [2023-12-16 00:33:54,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 00:33:54,222 INFO L206 MainTranslator]: Completed translation [2023-12-16 00:33:54,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:54 WrapperNode [2023-12-16 00:33:54,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 00:33:54,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 00:33:54,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 00:33:54,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 00:33:54,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:54" (1/1) ... [2023-12-16 00:33:54,300 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:54" (1/1) ... [2023-12-16 00:33:54,658 INFO L138 Inliner]: procedures = 62, calls = 68, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 13053 [2023-12-16 00:33:54,658 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 00:33:54,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 00:33:54,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 00:33:54,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 00:33:54,667 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:54" (1/1) ... [2023-12-16 00:33:54,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:54" (1/1) ... [2023-12-16 00:33:54,725 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:54" (1/1) ... [2023-12-16 00:33:54,807 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 00:33:54,808 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:54" (1/1) ... [2023-12-16 00:33:54,808 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:54" (1/1) ... [2023-12-16 00:33:54,931 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:54" (1/1) ... [2023-12-16 00:33:54,980 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:54" (1/1) ... [2023-12-16 00:33:55,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:54" (1/1) ... [2023-12-16 00:33:55,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:54" (1/1) ... [2023-12-16 00:33:55,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 00:33:55,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 00:33:55,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 00:33:55,190 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 00:33:55,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:54" (1/1) ... [2023-12-16 00:33:55,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 00:33:55,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:33:55,211 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 00:33:55,233 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 00:33:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 00:33:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 00:33:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 00:33:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 00:33:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 00:33:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 00:33:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 00:33:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 00:33:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 00:33:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 00:33:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 00:33:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 00:33:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 00:33:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 00:33:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 00:33:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 00:33:55,340 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 00:33:55,342 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 00:34:00,780 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 00:34:00,846 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 00:34:00,846 INFO L309 CfgBuilder]: Removed 13 assume(true) statements. [2023-12-16 00:34:00,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:34:00 BoogieIcfgContainer [2023-12-16 00:34:00,846 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 00:34:00,848 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 00:34:00,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 00:34:00,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 00:34:00,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:33:51" (1/3) ... [2023-12-16 00:34:00,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c1538c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:34:00, skipping insertion in model container [2023-12-16 00:34:00,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:54" (2/3) ... [2023-12-16 00:34:00,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c1538c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:34:00, skipping insertion in model container [2023-12-16 00:34:00,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:34:00" (3/3) ... [2023-12-16 00:34:00,852 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.09.cil-1.c [2023-12-16 00:34:00,864 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 00:34:00,864 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 00:34:00,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 00:34:00,922 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;@2676c1c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 00:34:00,922 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 00:34:00,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 2402 states, 2370 states have (on average 1.8784810126582279) internal successors, (4452), 2373 states have internal predecessors, (4452), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-16 00:34:00,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:00,943 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:00,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:34:00,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:00,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:00,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1643509846, now seen corresponding path program 1 times [2023-12-16 00:34:00,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:00,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886903893] [2023-12-16 00:34:00,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:00,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:01,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:01,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:01,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:01,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:01,323 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 00:34:01,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:01,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886903893] [2023-12-16 00:34:01,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886903893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:01,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:01,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 00:34:01,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510942761] [2023-12-16 00:34:01,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:01,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 00:34:01,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:01,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 00:34:01,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 00:34:01,354 INFO L87 Difference]: Start difference. First operand has 2402 states, 2370 states have (on average 1.8784810126582279) internal successors, (4452), 2373 states have internal predecessors, (4452), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:02,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:34:02,747 INFO L93 Difference]: Finished difference Result 4898 states and 9162 transitions. [2023-12-16 00:34:02,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 00:34:02,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 00:34:02,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:34:02,765 INFO L225 Difference]: With dead ends: 4898 [2023-12-16 00:34:02,766 INFO L226 Difference]: Without dead ends: 2498 [2023-12-16 00:34:02,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 00:34:02,788 INFO L413 NwaCegarLoop]: 4200 mSDtfsCounter, 764 mSDsluCounter, 12138 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 16338 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:02,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 16338 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 00:34:02,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2498 states. [2023-12-16 00:34:02,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2498 to 2398. [2023-12-16 00:34:02,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 2367 states have (on average 1.8411491339247994) internal successors, (4358), 2369 states have internal predecessors, (4358), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-16 00:34:02,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 4404 transitions. [2023-12-16 00:34:02,946 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 4404 transitions. Word has length 131 [2023-12-16 00:34:02,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:34:02,947 INFO L495 AbstractCegarLoop]: Abstraction has 2398 states and 4404 transitions. [2023-12-16 00:34:02,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:02,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 4404 transitions. [2023-12-16 00:34:02,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:02,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:02,966 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] [2023-12-16 00:34:02,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 00:34:02,967 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:02,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:02,967 INFO L85 PathProgramCache]: Analyzing trace with hash 406899052, now seen corresponding path program 1 times [2023-12-16 00:34:02,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:02,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229771082] [2023-12-16 00:34:02,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:02,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:03,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:03,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:03,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:03,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:03,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:03,197 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 00:34:03,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:03,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229771082] [2023-12-16 00:34:03,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229771082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:03,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:03,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 00:34:03,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521588999] [2023-12-16 00:34:03,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:03,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 00:34:03,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:03,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 00:34:03,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 00:34:03,200 INFO L87 Difference]: Start difference. First operand 2398 states and 4404 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:05,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:34:05,175 INFO L93 Difference]: Finished difference Result 3135 states and 5628 transitions. [2023-12-16 00:34:05,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 00:34:05,176 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 00:34:05,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:34:05,186 INFO L225 Difference]: With dead ends: 3135 [2023-12-16 00:34:05,186 INFO L226 Difference]: Without dead ends: 2873 [2023-12-16 00:34:05,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:34:05,189 INFO L413 NwaCegarLoop]: 4171 mSDtfsCounter, 5107 mSDsluCounter, 12498 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5123 SdHoareTripleChecker+Valid, 16669 SdHoareTripleChecker+Invalid, 1887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:05,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5123 Valid, 16669 Invalid, 1887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 00:34:05,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2023-12-16 00:34:05,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 2674. [2023-12-16 00:34:05,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8216195569136746) internal successors, (4769), 2621 states have internal predecessors, (4769), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (44), 41 states have call predecessors, (44), 41 states have call successors, (44) [2023-12-16 00:34:05,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4854 transitions. [2023-12-16 00:34:05,256 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4854 transitions. Word has length 131 [2023-12-16 00:34:05,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:34:05,256 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4854 transitions. [2023-12-16 00:34:05,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:05,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4854 transitions. [2023-12-16 00:34:05,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:05,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:05,258 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] [2023-12-16 00:34:05,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 00:34:05,259 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:05,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:05,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1501391760, now seen corresponding path program 1 times [2023-12-16 00:34:05,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:05,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261396449] [2023-12-16 00:34:05,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:05,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:05,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:05,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:05,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:05,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:05,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:05,463 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 00:34:05,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:05,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261396449] [2023-12-16 00:34:05,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261396449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:05,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:05,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:34:05,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358760628] [2023-12-16 00:34:05,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:05,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:34:05,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:05,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:34:05,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:34:05,466 INFO L87 Difference]: Start difference. First operand 2674 states and 4854 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:07,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:34:07,939 INFO L93 Difference]: Finished difference Result 3800 states and 6722 transitions. [2023-12-16 00:34:07,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:34:07,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 00:34:07,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:34:07,954 INFO L225 Difference]: With dead ends: 3800 [2023-12-16 00:34:07,954 INFO L226 Difference]: Without dead ends: 3262 [2023-12-16 00:34:07,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:34:07,958 INFO L413 NwaCegarLoop]: 4330 mSDtfsCounter, 5140 mSDsluCounter, 17046 mSDsCounter, 0 mSdLazyCounter, 2910 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5156 SdHoareTripleChecker+Valid, 21376 SdHoareTripleChecker+Invalid, 2965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:07,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5156 Valid, 21376 Invalid, 2965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2910 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 00:34:07,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2023-12-16 00:34:08,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 2929. [2023-12-16 00:34:08,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 2848 states have (on average 1.8040730337078652) internal successors, (5138), 2852 states have internal predecessors, (5138), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2023-12-16 00:34:08,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 5261 transitions. [2023-12-16 00:34:08,036 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 5261 transitions. Word has length 131 [2023-12-16 00:34:08,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:34:08,036 INFO L495 AbstractCegarLoop]: Abstraction has 2929 states and 5261 transitions. [2023-12-16 00:34:08,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:08,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 5261 transitions. [2023-12-16 00:34:08,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:08,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:08,038 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] [2023-12-16 00:34:08,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 00:34:08,039 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:08,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:08,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1030035410, now seen corresponding path program 1 times [2023-12-16 00:34:08,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:08,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164536139] [2023-12-16 00:34:08,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:08,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:08,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:08,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:08,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:08,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:08,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:08,204 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 00:34:08,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:08,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164536139] [2023-12-16 00:34:08,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164536139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:08,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:08,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:34:08,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587884603] [2023-12-16 00:34:08,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:08,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:34:08,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:08,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:34:08,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:34:08,207 INFO L87 Difference]: Start difference. First operand 2929 states and 5261 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:09,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:34:09,618 INFO L93 Difference]: Finished difference Result 4067 states and 7159 transitions. [2023-12-16 00:34:09,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:34:09,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 00:34:09,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:34:09,627 INFO L225 Difference]: With dead ends: 4067 [2023-12-16 00:34:09,628 INFO L226 Difference]: Without dead ends: 3274 [2023-12-16 00:34:09,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:34:09,630 INFO L413 NwaCegarLoop]: 4158 mSDtfsCounter, 4804 mSDsluCounter, 16442 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4821 SdHoareTripleChecker+Valid, 20600 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:09,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4821 Valid, 20600 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 00:34:09,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2023-12-16 00:34:09,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 2929. [2023-12-16 00:34:09,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 2848 states have (on average 1.8030196629213484) internal successors, (5135), 2852 states have internal predecessors, (5135), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2023-12-16 00:34:09,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 5258 transitions. [2023-12-16 00:34:09,690 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 5258 transitions. Word has length 131 [2023-12-16 00:34:09,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:34:09,691 INFO L495 AbstractCegarLoop]: Abstraction has 2929 states and 5258 transitions. [2023-12-16 00:34:09,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:09,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 5258 transitions. [2023-12-16 00:34:09,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:09,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:09,692 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] [2023-12-16 00:34:09,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 00:34:09,692 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:09,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:09,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1133581164, now seen corresponding path program 1 times [2023-12-16 00:34:09,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:09,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621544106] [2023-12-16 00:34:09,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:09,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:09,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:09,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:09,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:09,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:09,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:09,844 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 00:34:09,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:09,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621544106] [2023-12-16 00:34:09,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621544106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:09,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:09,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:34:09,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23244866] [2023-12-16 00:34:09,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:09,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:34:09,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:09,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:34:09,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:34:09,846 INFO L87 Difference]: Start difference. First operand 2929 states and 5258 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:10,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:34:10,896 INFO L93 Difference]: Finished difference Result 4063 states and 7142 transitions. [2023-12-16 00:34:10,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:34:10,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 00:34:10,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:34:10,906 INFO L225 Difference]: With dead ends: 4063 [2023-12-16 00:34:10,906 INFO L226 Difference]: Without dead ends: 3270 [2023-12-16 00:34:10,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:34:10,910 INFO L413 NwaCegarLoop]: 4158 mSDtfsCounter, 4921 mSDsluCounter, 12355 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4938 SdHoareTripleChecker+Valid, 16513 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:10,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4938 Valid, 16513 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 00:34:10,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3270 states. [2023-12-16 00:34:10,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3270 to 2929. [2023-12-16 00:34:10,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 2848 states have (on average 1.8019662921348314) internal successors, (5132), 2852 states have internal predecessors, (5132), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2023-12-16 00:34:10,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 5255 transitions. [2023-12-16 00:34:10,971 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 5255 transitions. Word has length 131 [2023-12-16 00:34:10,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:34:10,971 INFO L495 AbstractCegarLoop]: Abstraction has 2929 states and 5255 transitions. [2023-12-16 00:34:10,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:10,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 5255 transitions. [2023-12-16 00:34:10,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:10,973 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:10,973 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] [2023-12-16 00:34:10,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 00:34:10,973 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:10,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:10,973 INFO L85 PathProgramCache]: Analyzing trace with hash 94996590, now seen corresponding path program 1 times [2023-12-16 00:34:10,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:10,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897145172] [2023-12-16 00:34:10,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:10,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:11,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:11,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:11,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:11,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:11,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:11,139 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 00:34:11,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:11,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897145172] [2023-12-16 00:34:11,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897145172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:11,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:11,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:34:11,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710571989] [2023-12-16 00:34:11,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:11,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:34:11,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:11,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:34:11,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:34:11,142 INFO L87 Difference]: Start difference. First operand 2929 states and 5255 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:12,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:34:12,208 INFO L93 Difference]: Finished difference Result 4059 states and 7125 transitions. [2023-12-16 00:34:12,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:34:12,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 00:34:12,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:34:12,219 INFO L225 Difference]: With dead ends: 4059 [2023-12-16 00:34:12,219 INFO L226 Difference]: Without dead ends: 3266 [2023-12-16 00:34:12,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:34:12,223 INFO L413 NwaCegarLoop]: 4158 mSDtfsCounter, 4919 mSDsluCounter, 12355 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4936 SdHoareTripleChecker+Valid, 16513 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:12,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4936 Valid, 16513 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 00:34:12,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3266 states. [2023-12-16 00:34:12,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3266 to 2929. [2023-12-16 00:34:12,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 2848 states have (on average 1.8009129213483146) internal successors, (5129), 2852 states have internal predecessors, (5129), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2023-12-16 00:34:12,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 5252 transitions. [2023-12-16 00:34:12,283 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 5252 transitions. Word has length 131 [2023-12-16 00:34:12,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:34:12,283 INFO L495 AbstractCegarLoop]: Abstraction has 2929 states and 5252 transitions. [2023-12-16 00:34:12,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:12,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 5252 transitions. [2023-12-16 00:34:12,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:12,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:12,285 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] [2023-12-16 00:34:12,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 00:34:12,285 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:12,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:12,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1878168788, now seen corresponding path program 1 times [2023-12-16 00:34:12,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:12,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616699783] [2023-12-16 00:34:12,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:12,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:12,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:12,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:12,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:12,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:12,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:12,573 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 00:34:12,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:12,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616699783] [2023-12-16 00:34:12,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616699783] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:12,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:12,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:34:12,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697365993] [2023-12-16 00:34:12,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:12,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:34:12,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:12,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:34:12,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:34:12,580 INFO L87 Difference]: Start difference. First operand 2929 states and 5252 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:14,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:34:14,808 INFO L93 Difference]: Finished difference Result 4761 states and 8249 transitions. [2023-12-16 00:34:14,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:34:14,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 00:34:14,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:34:14,835 INFO L225 Difference]: With dead ends: 4761 [2023-12-16 00:34:14,835 INFO L226 Difference]: Without dead ends: 3968 [2023-12-16 00:34:14,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:34:14,840 INFO L413 NwaCegarLoop]: 4180 mSDtfsCounter, 5191 mSDsluCounter, 16647 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5207 SdHoareTripleChecker+Valid, 20827 SdHoareTripleChecker+Invalid, 2439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:14,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5207 Valid, 20827 Invalid, 2439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2352 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 00:34:14,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3968 states. [2023-12-16 00:34:14,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3968 to 3452. [2023-12-16 00:34:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3321 states have (on average 1.7705510388437218) internal successors, (5880), 3327 states have internal predecessors, (5880), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2023-12-16 00:34:14,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 6083 transitions. [2023-12-16 00:34:14,920 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 6083 transitions. Word has length 131 [2023-12-16 00:34:14,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:34:14,921 INFO L495 AbstractCegarLoop]: Abstraction has 3452 states and 6083 transitions. [2023-12-16 00:34:14,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:14,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 6083 transitions. [2023-12-16 00:34:14,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:14,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:14,923 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] [2023-12-16 00:34:14,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 00:34:14,924 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:14,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:14,924 INFO L85 PathProgramCache]: Analyzing trace with hash 274938030, now seen corresponding path program 1 times [2023-12-16 00:34:14,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:14,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453128794] [2023-12-16 00:34:14,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:14,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:14,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:15,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:15,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:15,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:15,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:15,078 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 00:34:15,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:15,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453128794] [2023-12-16 00:34:15,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453128794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:15,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:15,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:34:15,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328230933] [2023-12-16 00:34:15,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:15,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:34:15,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:15,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:34:15,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:34:15,079 INFO L87 Difference]: Start difference. First operand 3452 states and 6083 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:16,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:34:16,166 INFO L93 Difference]: Finished difference Result 5271 states and 9068 transitions. [2023-12-16 00:34:16,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:34:16,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 00:34:16,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:34:16,183 INFO L225 Difference]: With dead ends: 5271 [2023-12-16 00:34:16,184 INFO L226 Difference]: Without dead ends: 3955 [2023-12-16 00:34:16,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:34:16,190 INFO L413 NwaCegarLoop]: 4158 mSDtfsCounter, 4918 mSDsluCounter, 12355 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4935 SdHoareTripleChecker+Valid, 16513 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:16,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4935 Valid, 16513 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 00:34:16,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2023-12-16 00:34:16,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 3452. [2023-12-16 00:34:16,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3321 states have (on average 1.7690454682324601) internal successors, (5875), 3327 states have internal predecessors, (5875), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2023-12-16 00:34:16,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 6078 transitions. [2023-12-16 00:34:16,286 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 6078 transitions. Word has length 131 [2023-12-16 00:34:16,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:34:16,287 INFO L495 AbstractCegarLoop]: Abstraction has 3452 states and 6078 transitions. [2023-12-16 00:34:16,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:16,287 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 6078 transitions. [2023-12-16 00:34:16,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:16,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:16,289 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] [2023-12-16 00:34:16,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 00:34:16,289 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:16,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:16,290 INFO L85 PathProgramCache]: Analyzing trace with hash -348343572, now seen corresponding path program 1 times [2023-12-16 00:34:16,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:16,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619371747] [2023-12-16 00:34:16,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:16,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:16,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:16,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:16,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:16,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:16,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:16,475 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 00:34:16,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:16,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619371747] [2023-12-16 00:34:16,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619371747] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:16,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:16,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:34:16,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007211553] [2023-12-16 00:34:16,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:16,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:34:16,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:16,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:34:16,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:34:16,477 INFO L87 Difference]: Start difference. First operand 3452 states and 6078 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:19,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:34:19,064 INFO L93 Difference]: Finished difference Result 6630 states and 11232 transitions. [2023-12-16 00:34:19,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:34:19,064 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 00:34:19,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:34:19,077 INFO L225 Difference]: With dead ends: 6630 [2023-12-16 00:34:19,077 INFO L226 Difference]: Without dead ends: 5314 [2023-12-16 00:34:19,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:34:19,083 INFO L413 NwaCegarLoop]: 4328 mSDtfsCounter, 5105 mSDsluCounter, 17046 mSDsCounter, 0 mSdLazyCounter, 2776 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5121 SdHoareTripleChecker+Valid, 21374 SdHoareTripleChecker+Invalid, 2833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:19,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5121 Valid, 21374 Invalid, 2833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2776 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 00:34:19,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5314 states. [2023-12-16 00:34:19,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5314 to 4498. [2023-12-16 00:34:19,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4498 states, 4267 states have (on average 1.7265057417389267) internal successors, (7367), 4277 states have internal predecessors, (7367), 167 states have call successors, (167), 54 states have call predecessors, (167), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2023-12-16 00:34:19,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 7736 transitions. [2023-12-16 00:34:19,185 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 7736 transitions. Word has length 131 [2023-12-16 00:34:19,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:34:19,186 INFO L495 AbstractCegarLoop]: Abstraction has 4498 states and 7736 transitions. [2023-12-16 00:34:19,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:19,186 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 7736 transitions. [2023-12-16 00:34:19,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:19,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:19,188 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] [2023-12-16 00:34:19,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 00:34:19,189 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:19,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:19,189 INFO L85 PathProgramCache]: Analyzing trace with hash -229902098, now seen corresponding path program 1 times [2023-12-16 00:34:19,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:19,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409999563] [2023-12-16 00:34:19,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:19,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:19,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:19,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:19,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:19,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:19,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:19,345 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 00:34:19,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:19,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409999563] [2023-12-16 00:34:19,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409999563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:19,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:19,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:34:19,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540092138] [2023-12-16 00:34:19,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:19,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:34:19,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:19,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:34:19,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:34:19,347 INFO L87 Difference]: Start difference. First operand 4498 states and 7736 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:21,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:34:21,870 INFO L93 Difference]: Finished difference Result 10374 states and 17252 transitions. [2023-12-16 00:34:21,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:34:21,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 00:34:21,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:34:21,888 INFO L225 Difference]: With dead ends: 10374 [2023-12-16 00:34:21,888 INFO L226 Difference]: Without dead ends: 8012 [2023-12-16 00:34:21,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:34:21,895 INFO L413 NwaCegarLoop]: 4328 mSDtfsCounter, 5110 mSDsluCounter, 17046 mSDsCounter, 0 mSdLazyCounter, 2758 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5126 SdHoareTripleChecker+Valid, 21374 SdHoareTripleChecker+Invalid, 2815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:21,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5126 Valid, 21374 Invalid, 2815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2758 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 00:34:21,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8012 states. [2023-12-16 00:34:22,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8012 to 6595. [2023-12-16 00:34:22,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6595 states, 6164 states have (on average 1.6802401038286827) internal successors, (10357), 6182 states have internal predecessors, (10357), 311 states have call successors, (311), 102 states have call predecessors, (311), 118 states have return successors, (408), 326 states have call predecessors, (408), 311 states have call successors, (408) [2023-12-16 00:34:22,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6595 states to 6595 states and 11076 transitions. [2023-12-16 00:34:22,057 INFO L78 Accepts]: Start accepts. Automaton has 6595 states and 11076 transitions. Word has length 131 [2023-12-16 00:34:22,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:34:22,057 INFO L495 AbstractCegarLoop]: Abstraction has 6595 states and 11076 transitions. [2023-12-16 00:34:22,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:22,057 INFO L276 IsEmpty]: Start isEmpty. Operand 6595 states and 11076 transitions. [2023-12-16 00:34:22,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:22,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:22,060 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] [2023-12-16 00:34:22,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 00:34:22,061 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:22,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:22,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1159391916, now seen corresponding path program 1 times [2023-12-16 00:34:22,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:22,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708171692] [2023-12-16 00:34:22,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:22,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:22,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:22,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:22,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:22,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:22,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:22,219 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 00:34:22,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:22,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708171692] [2023-12-16 00:34:22,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708171692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:22,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:22,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:34:22,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442181117] [2023-12-16 00:34:22,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:22,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:34:22,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:22,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:34:22,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:34:22,220 INFO L87 Difference]: Start difference. First operand 6595 states and 11076 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:25,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:34:25,197 INFO L93 Difference]: Finished difference Result 19523 states and 32052 transitions. [2023-12-16 00:34:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 00:34:25,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 00:34:25,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:34:25,234 INFO L225 Difference]: With dead ends: 19523 [2023-12-16 00:34:25,234 INFO L226 Difference]: Without dead ends: 15064 [2023-12-16 00:34:25,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 00:34:25,251 INFO L413 NwaCegarLoop]: 4325 mSDtfsCounter, 5178 mSDsluCounter, 17038 mSDsCounter, 0 mSdLazyCounter, 3229 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5193 SdHoareTripleChecker+Valid, 21363 SdHoareTripleChecker+Invalid, 3288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:25,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5193 Valid, 21363 Invalid, 3288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3229 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 00:34:25,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15064 states. [2023-12-16 00:34:25,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15064 to 10709. [2023-12-16 00:34:25,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10709 states, 9894 states have (on average 1.6423084697796644) internal successors, (16249), 9928 states have internal predecessors, (16249), 583 states have call successors, (583), 198 states have call predecessors, (583), 230 states have return successors, (858), 614 states have call predecessors, (858), 583 states have call successors, (858) [2023-12-16 00:34:25,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10709 states to 10709 states and 17690 transitions. [2023-12-16 00:34:25,667 INFO L78 Accepts]: Start accepts. Automaton has 10709 states and 17690 transitions. Word has length 131 [2023-12-16 00:34:25,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:34:25,668 INFO L495 AbstractCegarLoop]: Abstraction has 10709 states and 17690 transitions. [2023-12-16 00:34:25,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:25,668 INFO L276 IsEmpty]: Start isEmpty. Operand 10709 states and 17690 transitions. [2023-12-16 00:34:25,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:25,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:25,673 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] [2023-12-16 00:34:25,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 00:34:25,673 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:25,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:25,673 INFO L85 PathProgramCache]: Analyzing trace with hash -707316758, now seen corresponding path program 1 times [2023-12-16 00:34:25,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:25,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296148820] [2023-12-16 00:34:25,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:25,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:25,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:25,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:25,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:25,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:25,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:25,813 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 00:34:25,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:25,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296148820] [2023-12-16 00:34:25,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296148820] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:25,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:25,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:34:25,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840920420] [2023-12-16 00:34:25,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:25,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:34:25,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:25,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:34:25,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:34:25,815 INFO L87 Difference]: Start difference. First operand 10709 states and 17690 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:28,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:34:28,676 INFO L93 Difference]: Finished difference Result 35491 states and 58044 transitions. [2023-12-16 00:34:28,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 00:34:28,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 00:34:28,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:34:28,749 INFO L225 Difference]: With dead ends: 35491 [2023-12-16 00:34:28,749 INFO L226 Difference]: Without dead ends: 26918 [2023-12-16 00:34:28,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 00:34:28,781 INFO L413 NwaCegarLoop]: 4326 mSDtfsCounter, 5363 mSDsluCounter, 17041 mSDsCounter, 0 mSdLazyCounter, 2708 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5389 SdHoareTripleChecker+Valid, 21367 SdHoareTripleChecker+Invalid, 2768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:28,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5389 Valid, 21367 Invalid, 2768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2708 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 00:34:28,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26918 states. [2023-12-16 00:34:29,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26918 to 19014. [2023-12-16 00:34:29,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19014 states, 17447 states have (on average 1.6155786095030664) internal successors, (28187), 17513 states have internal predecessors, (28187), 1111 states have call successors, (1111), 390 states have call predecessors, (1111), 454 states have return successors, (1904), 1174 states have call predecessors, (1904), 1111 states have call successors, (1904) [2023-12-16 00:34:29,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19014 states to 19014 states and 31202 transitions. [2023-12-16 00:34:29,611 INFO L78 Accepts]: Start accepts. Automaton has 19014 states and 31202 transitions. Word has length 131 [2023-12-16 00:34:29,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:34:29,611 INFO L495 AbstractCegarLoop]: Abstraction has 19014 states and 31202 transitions. [2023-12-16 00:34:29,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:29,611 INFO L276 IsEmpty]: Start isEmpty. Operand 19014 states and 31202 transitions. [2023-12-16 00:34:29,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:29,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:29,621 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] [2023-12-16 00:34:29,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 00:34:29,621 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:29,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:29,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2014459156, now seen corresponding path program 1 times [2023-12-16 00:34:29,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:29,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317410074] [2023-12-16 00:34:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:29,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:29,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:29,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:29,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:29,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:29,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:29,776 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 00:34:29,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:29,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317410074] [2023-12-16 00:34:29,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317410074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:29,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:29,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:34:29,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984329280] [2023-12-16 00:34:29,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:29,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:34:29,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:29,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:34:29,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:34:29,778 INFO L87 Difference]: Start difference. First operand 19014 states and 31202 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:33,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:34:33,174 INFO L93 Difference]: Finished difference Result 67154 states and 110194 transitions. [2023-12-16 00:34:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 00:34:33,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 00:34:33,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:34:33,323 INFO L225 Difference]: With dead ends: 67154 [2023-12-16 00:34:33,323 INFO L226 Difference]: Without dead ends: 50276 [2023-12-16 00:34:33,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 00:34:33,375 INFO L413 NwaCegarLoop]: 4326 mSDtfsCounter, 5327 mSDsluCounter, 17041 mSDsCounter, 0 mSdLazyCounter, 2695 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5353 SdHoareTripleChecker+Valid, 21367 SdHoareTripleChecker+Invalid, 2755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:33,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5353 Valid, 21367 Invalid, 2755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2695 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 00:34:33,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50276 states. [2023-12-16 00:34:34,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50276 to 35623. [2023-12-16 00:34:34,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35623 states, 32584 states have (on average 1.599711514853916) internal successors, (52125), 32714 states have internal predecessors, (52125), 2135 states have call successors, (2135), 774 states have call predecessors, (2135), 902 states have return successors, (4450), 2262 states have call predecessors, (4450), 2135 states have call successors, (4450) [2023-12-16 00:34:34,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35623 states to 35623 states and 58710 transitions. [2023-12-16 00:34:34,711 INFO L78 Accepts]: Start accepts. Automaton has 35623 states and 58710 transitions. Word has length 131 [2023-12-16 00:34:34,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:34:34,711 INFO L495 AbstractCegarLoop]: Abstraction has 35623 states and 58710 transitions. [2023-12-16 00:34:34,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:34,711 INFO L276 IsEmpty]: Start isEmpty. Operand 35623 states and 58710 transitions. [2023-12-16 00:34:34,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:34,728 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:34,728 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] [2023-12-16 00:34:34,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 00:34:34,728 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:34,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:34,729 INFO L85 PathProgramCache]: Analyzing trace with hash -116962390, now seen corresponding path program 1 times [2023-12-16 00:34:34,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:34,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535082559] [2023-12-16 00:34:34,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:34,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:34,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:34,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:34,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:34,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:34,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:34,869 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 00:34:34,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:34,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535082559] [2023-12-16 00:34:34,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535082559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:34,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:34,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:34:34,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553797606] [2023-12-16 00:34:34,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:34,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:34:34,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:34,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:34:34,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:34:34,871 INFO L87 Difference]: Start difference. First operand 35623 states and 58710 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:39,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:34:39,010 INFO L93 Difference]: Finished difference Result 129521 states and 214776 transitions. [2023-12-16 00:34:39,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 00:34:39,013 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 00:34:39,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:34:39,285 INFO L225 Difference]: With dead ends: 129521 [2023-12-16 00:34:39,285 INFO L226 Difference]: Without dead ends: 96034 [2023-12-16 00:34:39,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 00:34:39,495 INFO L413 NwaCegarLoop]: 4182 mSDtfsCounter, 5211 mSDsluCounter, 16645 mSDsCounter, 0 mSdLazyCounter, 2647 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5226 SdHoareTripleChecker+Valid, 20827 SdHoareTripleChecker+Invalid, 2734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:39,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5226 Valid, 20827 Invalid, 2734 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [87 Valid, 2647 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 00:34:39,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96034 states. [2023-12-16 00:34:41,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96034 to 68840. [2023-12-16 00:34:41,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68840 states, 62921 states have (on average 1.5913129161965003) internal successors, (100127), 63179 states have internal predecessors, (100127), 4119 states have call successors, (4119), 1542 states have call predecessors, (4119), 1798 states have return successors, (10936), 4374 states have call predecessors, (10936), 4119 states have call successors, (10936) [2023-12-16 00:34:42,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68840 states to 68840 states and 115182 transitions. [2023-12-16 00:34:42,253 INFO L78 Accepts]: Start accepts. Automaton has 68840 states and 115182 transitions. Word has length 131 [2023-12-16 00:34:42,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:34:42,253 INFO L495 AbstractCegarLoop]: Abstraction has 68840 states and 115182 transitions. [2023-12-16 00:34:42,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:34:42,253 INFO L276 IsEmpty]: Start isEmpty. Operand 68840 states and 115182 transitions. [2023-12-16 00:34:42,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 00:34:42,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:34:42,309 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] [2023-12-16 00:34:42,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 00:34:42,310 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:34:42,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:34:42,310 INFO L85 PathProgramCache]: Analyzing trace with hash 914078508, now seen corresponding path program 1 times [2023-12-16 00:34:42,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:34:42,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93320048] [2023-12-16 00:34:42,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:34:42,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:34:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:42,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:34:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:42,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 00:34:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:42,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 00:34:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:42,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 00:34:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:42,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 00:34:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:34:42,458 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 00:34:42,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:34:42,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93320048] [2023-12-16 00:34:42,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93320048] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:34:42,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:34:42,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:34:42,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945222118] [2023-12-16 00:34:42,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:34:42,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:34:42,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:34:42,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:34:42,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:34:42,460 INFO L87 Difference]: Start difference. First operand 68840 states and 115182 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Received shutdown request... [2023-12-16 00:34:48,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 00:34:48,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 00:34:48,449 INFO L413 NwaCegarLoop]: 4262 mSDtfsCounter, 5169 mSDsluCounter, 16812 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5193 SdHoareTripleChecker+Valid, 21074 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 00:34:48,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5193 Valid, 21074 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2365 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 00:34:48,450 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 00:34:48,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 00:34:48,451 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (68840states) and FLOYD_HOARE automaton (currently 15 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (244893 states constructed, input type IntersectNwa). [2023-12-16 00:34:48,453 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 00:34:48,454 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 00:34:48,456 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:34:48,459 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 00:34:48,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:34:48 BoogieIcfgContainer [2023-12-16 00:34:48,463 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 00:34:48,464 INFO L158 Benchmark]: Toolchain (without parser) took 56580.45ms. Allocated memory was 325.1MB in the beginning and 4.2GB in the end (delta: 3.8GB). Free memory was 236.4MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-16 00:34:48,464 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 183.5MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 00:34:48,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2340.69ms. Allocated memory is still 325.1MB. Free memory was 236.4MB in the beginning and 174.8MB in the end (delta: 61.6MB). Peak memory consumption was 195.7MB. Max. memory is 8.0GB. [2023-12-16 00:34:48,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 433.32ms. Allocated memory was 325.1MB in the beginning and 539.0MB in the end (delta: 213.9MB). Free memory was 174.8MB in the beginning and 392.5MB in the end (delta: -217.6MB). Peak memory consumption was 99.1MB. Max. memory is 8.0GB. [2023-12-16 00:34:48,466 INFO L158 Benchmark]: Boogie Preprocessor took 530.64ms. Allocated memory is still 539.0MB. Free memory was 392.5MB in the beginning and 369.4MB in the end (delta: 23.1MB). Peak memory consumption was 101.7MB. Max. memory is 8.0GB. [2023-12-16 00:34:48,470 INFO L158 Benchmark]: RCFGBuilder took 5656.49ms. Allocated memory was 539.0MB in the beginning and 1.3GB in the end (delta: 806.4MB). Free memory was 369.4MB in the beginning and 1.0GB in the end (delta: -673.9MB). Peak memory consumption was 295.6MB. Max. memory is 8.0GB. [2023-12-16 00:34:48,472 INFO L158 Benchmark]: TraceAbstraction took 47614.89ms. Allocated memory was 1.3GB in the beginning and 4.2GB in the end (delta: 2.8GB). Free memory was 1.0GB in the beginning and 3.1GB in the end (delta: -2.1GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-16 00:34:48,474 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 183.5MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2340.69ms. Allocated memory is still 325.1MB. Free memory was 236.4MB in the beginning and 174.8MB in the end (delta: 61.6MB). Peak memory consumption was 195.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 433.32ms. Allocated memory was 325.1MB in the beginning and 539.0MB in the end (delta: 213.9MB). Free memory was 174.8MB in the beginning and 392.5MB in the end (delta: -217.6MB). Peak memory consumption was 99.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 530.64ms. Allocated memory is still 539.0MB. Free memory was 392.5MB in the beginning and 369.4MB in the end (delta: 23.1MB). Peak memory consumption was 101.7MB. Max. memory is 8.0GB. * RCFGBuilder took 5656.49ms. Allocated memory was 539.0MB in the beginning and 1.3GB in the end (delta: 806.4MB). Free memory was 369.4MB in the beginning and 1.0GB in the end (delta: -673.9MB). Peak memory consumption was 295.6MB. Max. memory is 8.0GB. * TraceAbstraction took 47614.89ms. Allocated memory was 1.3GB in the beginning and 4.2GB in the end (delta: 2.8GB). Free memory was 1.0GB in the beginning and 3.1GB in the end (delta: -2.1GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while NwaCegarLoop was constructing difference of abstraction (68840states) and FLOYD_HOARE automaton (currently 15 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (244893 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 11049]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11049). Cancelled while NwaCegarLoop was constructing difference of abstraction (68840states) and FLOYD_HOARE automaton (currently 15 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (244893 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2402 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 47.6s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 38.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72502 SdHoareTripleChecker+Valid, 22.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72227 mSDsluCounter, 294095 SdHoareTripleChecker+Invalid, 19.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 230505 mSDsCounter, 1027 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32467 IncrementalHoareTripleChecker+Invalid, 33494 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1027 mSolverCounterUnsat, 63590 mSDtfsCounter, 32467 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 381 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68840occurred in iteration=14, InterpolantAutomatonStates: 160, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 59013 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1965 NumberOfCodeBlocks, 1965 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1950 ConstructedInterpolants, 0 QuantifiedInterpolants, 5825 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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