/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/systemc/token_ring.09.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 23:07:28,629 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 23:07:28,703 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 23:07:28,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 23:07:28,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 23:07:28,749 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 23:07:28,750 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 23:07:28,750 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 23:07:28,751 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 23:07:28,754 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 23:07:28,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 23:07:28,755 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 23:07:28,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 23:07:28,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 23:07:28,757 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 23:07:28,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 23:07:28,757 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 23:07:28,757 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 23:07:28,758 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 23:07:28,758 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 23:07:28,758 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 23:07:28,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 23:07:28,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 23:07:28,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 23:07:28,759 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 23:07:28,759 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 23:07:28,759 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 23:07:28,760 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 23:07:28,760 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 23:07:28,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 23:07:28,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 23:07:28,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 23:07:28,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:07:28,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 23:07:28,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 23:07:28,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 23:07:28,762 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 23:07:28,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 23:07:28,763 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 23:07:28,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 23:07:28,763 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 23:07:28,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 23:07:28,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 23:07:28,764 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 23:07:29,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 23:07:29,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 23:07:29,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 23:07:29,045 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 23:07:29,046 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 23:07:29,047 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.09.cil-1.c [2023-12-15 23:07:30,243 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 23:07:30,467 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 23:07:30,468 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.09.cil-1.c [2023-12-15 23:07:30,483 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f037e88/7d2cedf47dd64134852026579c373262/FLAG57903a4bb [2023-12-15 23:07:30,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f037e88/7d2cedf47dd64134852026579c373262 [2023-12-15 23:07:30,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 23:07:30,497 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 23:07:30,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 23:07:30,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 23:07:30,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 23:07:30,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:07:30" (1/1) ... [2023-12-15 23:07:30,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31189202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30, skipping insertion in model container [2023-12-15 23:07:30,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:07:30" (1/1) ... [2023-12-15 23:07:30,543 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 23:07:30,692 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.09.cil-1.c[671,684] [2023-12-15 23:07:30,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:07:30,826 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 23:07:30,836 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.09.cil-1.c[671,684] [2023-12-15 23:07:30,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:07:30,916 INFO L206 MainTranslator]: Completed translation [2023-12-15 23:07:30,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30 WrapperNode [2023-12-15 23:07:30,917 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 23:07:30,918 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 23:07:30,918 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 23:07:30,918 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 23:07:30,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30" (1/1) ... [2023-12-15 23:07:30,935 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30" (1/1) ... [2023-12-15 23:07:30,977 INFO L138 Inliner]: procedures = 46, calls = 58, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 699 [2023-12-15 23:07:30,977 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 23:07:30,978 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 23:07:30,978 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 23:07:30,978 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 23:07:30,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30" (1/1) ... [2023-12-15 23:07:30,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30" (1/1) ... [2023-12-15 23:07:30,990 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30" (1/1) ... [2023-12-15 23:07:31,006 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]. [2023-12-15 23:07:31,006 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30" (1/1) ... [2023-12-15 23:07:31,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30" (1/1) ... [2023-12-15 23:07:31,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30" (1/1) ... [2023-12-15 23:07:31,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30" (1/1) ... [2023-12-15 23:07:31,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30" (1/1) ... [2023-12-15 23:07:31,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30" (1/1) ... [2023-12-15 23:07:31,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 23:07:31,049 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 23:07:31,049 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 23:07:31,049 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 23:07:31,050 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30" (1/1) ... [2023-12-15 23:07:31,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:07:31,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:07:31,081 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) [2023-12-15 23:07:31,111 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 [2023-12-15 23:07:31,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 23:07:31,122 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 23:07:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 23:07:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 23:07:31,124 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 23:07:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-15 23:07:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-15 23:07:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 23:07:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 23:07:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 23:07:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 23:07:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 23:07:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 23:07:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 23:07:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 23:07:31,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 23:07:31,256 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 23:07:31,258 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 23:07:31,778 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 23:07:31,845 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 23:07:31,846 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-12-15 23:07:31,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:07:31 BoogieIcfgContainer [2023-12-15 23:07:31,846 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 23:07:31,848 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 23:07:31,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 23:07:31,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 23:07:31,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:07:30" (1/3) ... [2023-12-15 23:07:31,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4309431b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:07:31, skipping insertion in model container [2023-12-15 23:07:31,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:30" (2/3) ... [2023-12-15 23:07:31,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4309431b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:07:31, skipping insertion in model container [2023-12-15 23:07:31,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:07:31" (3/3) ... [2023-12-15 23:07:31,854 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.09.cil-1.c [2023-12-15 23:07:31,871 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 23:07:31,871 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 23:07:31,925 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 23:07:31,932 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;@2a8d0541, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 23:07:31,932 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 23:07:31,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 279 states, 248 states have (on average 1.7258064516129032) internal successors, (428), 250 states have internal predecessors, (428), 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) [2023-12-15 23:07:31,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 23:07:31,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:31,957 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] [2023-12-15 23:07:31,958 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:31,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:31,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1075224052, now seen corresponding path program 1 times [2023-12-15 23:07:31,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:31,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901847288] [2023-12-15 23:07:31,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:31,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:32,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:32,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 23:07:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:32,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:07:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:32,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 23:07:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:32,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:07:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:32,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:32,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901847288] [2023-12-15 23:07:32,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901847288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:32,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:32,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:07:32,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139327574] [2023-12-15 23:07:32,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:32,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:07:32,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:32,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:07:32,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:07:32,649 INFO L87 Difference]: Start difference. First operand has 279 states, 248 states have (on average 1.7258064516129032) internal successors, (428), 250 states have internal predecessors, (428), 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 24.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2023-12-15 23:07:34,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:34,045 INFO L93 Difference]: Finished difference Result 648 states and 1109 transitions. [2023-12-15 23:07:34,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 23:07:34,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 3 states have internal predecessors, (120), 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 130 [2023-12-15 23:07:34,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:34,065 INFO L225 Difference]: With dead ends: 648 [2023-12-15 23:07:34,066 INFO L226 Difference]: Without dead ends: 377 [2023-12-15 23:07:34,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:07:34,073 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 760 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:34,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 502 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 23:07:34,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-12-15 23:07:34,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 277. [2023-12-15 23:07:34,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 247 states have (on average 1.6194331983805668) internal successors, (400), 248 states have internal predecessors, (400), 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) [2023-12-15 23:07:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 446 transitions. [2023-12-15 23:07:34,131 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 446 transitions. Word has length 130 [2023-12-15 23:07:34,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:34,132 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 446 transitions. [2023-12-15 23:07:34,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2023-12-15 23:07:34,132 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 446 transitions. [2023-12-15 23:07:34,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 23:07:34,135 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:34,135 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] [2023-12-15 23:07:34,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 23:07:34,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:34,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:34,136 INFO L85 PathProgramCache]: Analyzing trace with hash 206948234, now seen corresponding path program 1 times [2023-12-15 23:07:34,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:34,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558267494] [2023-12-15 23:07:34,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:34,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:34,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:34,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 23:07:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:34,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:07:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:34,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 23:07:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:34,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:07:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:34,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:34,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:34,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558267494] [2023-12-15 23:07:34,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558267494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:34,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:34,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:07:34,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111550039] [2023-12-15 23:07:34,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:34,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:07:34,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:34,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:07:34,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:07:34,495 INFO L87 Difference]: Start difference. First operand 277 states and 446 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2023-12-15 23:07:36,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:36,749 INFO L93 Difference]: Finished difference Result 1014 states and 1670 transitions. [2023-12-15 23:07:36,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 23:07:36,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 4 states have internal predecessors, (120), 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 130 [2023-12-15 23:07:36,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:36,755 INFO L225 Difference]: With dead ends: 1014 [2023-12-15 23:07:36,755 INFO L226 Difference]: Without dead ends: 752 [2023-12-15 23:07:36,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:07:36,757 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1150 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:36,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 841 Invalid, 1883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [96 Valid, 1787 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-15 23:07:36,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2023-12-15 23:07:36,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 553. [2023-12-15 23:07:36,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 498 states have (on average 1.6285140562248996) internal successors, (811), 500 states have internal predecessors, (811), 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) [2023-12-15 23:07:36,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 896 transitions. [2023-12-15 23:07:36,803 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 896 transitions. Word has length 130 [2023-12-15 23:07:36,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:36,803 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 896 transitions. [2023-12-15 23:07:36,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2023-12-15 23:07:36,804 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 896 transitions. [2023-12-15 23:07:36,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 23:07:36,805 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:36,806 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] [2023-12-15 23:07:36,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 23:07:36,806 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:36,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:36,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1701342578, now seen corresponding path program 1 times [2023-12-15 23:07:36,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:36,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60343963] [2023-12-15 23:07:36,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:36,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:36,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:37,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 23:07:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:37,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:07:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:37,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 23:07:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:37,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:07:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:37,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:37,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:37,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60343963] [2023-12-15 23:07:37,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60343963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:37,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:37,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:37,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198994157] [2023-12-15 23:07:37,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:37,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:37,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:37,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:37,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:37,120 INFO L87 Difference]: Start difference. First operand 553 states and 896 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:40,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:40,141 INFO L93 Difference]: Finished difference Result 1679 states and 2764 transitions. [2023-12-15 23:07:40,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:07:40,142 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2023-12-15 23:07:40,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:40,149 INFO L225 Difference]: With dead ends: 1679 [2023-12-15 23:07:40,149 INFO L226 Difference]: Without dead ends: 1141 [2023-12-15 23:07:40,152 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 [2023-12-15 23:07:40,155 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 1173 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 2912 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 2967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:40,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 1591 Invalid, 2967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2912 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-15 23:07:40,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2023-12-15 23:07:40,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 808. [2023-12-15 23:07:40,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 728 states have (on average 1.620879120879121) internal successors, (1180), 731 states have internal predecessors, (1180), 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) [2023-12-15 23:07:40,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1303 transitions. [2023-12-15 23:07:40,213 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1303 transitions. Word has length 130 [2023-12-15 23:07:40,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:40,215 INFO L495 AbstractCegarLoop]: Abstraction has 808 states and 1303 transitions. [2023-12-15 23:07:40,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:40,215 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1303 transitions. [2023-12-15 23:07:40,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 23:07:40,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:40,221 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] [2023-12-15 23:07:40,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 23:07:40,221 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:40,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:40,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1229986228, now seen corresponding path program 1 times [2023-12-15 23:07:40,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:40,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759259616] [2023-12-15 23:07:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:40,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:40,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:40,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 23:07:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:40,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:07:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:40,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 23:07:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:40,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:07:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:40,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:40,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:40,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759259616] [2023-12-15 23:07:40,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759259616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:40,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:40,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:40,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385646030] [2023-12-15 23:07:40,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:40,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:40,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:40,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:40,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:40,493 INFO L87 Difference]: Start difference. First operand 808 states and 1303 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:43,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:43,371 INFO L93 Difference]: Finished difference Result 2653 states and 4357 transitions. [2023-12-15 23:07:43,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:07:43,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2023-12-15 23:07:43,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:43,382 INFO L225 Difference]: With dead ends: 2653 [2023-12-15 23:07:43,382 INFO L226 Difference]: Without dead ends: 1860 [2023-12-15 23:07:43,387 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 [2023-12-15 23:07:43,392 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 1171 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 2908 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 2965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:43,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 1589 Invalid, 2965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2908 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-15 23:07:43,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2023-12-15 23:07:43,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1319. [2023-12-15 23:07:43,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1189 states have (on average 1.6139613120269134) internal successors, (1919), 1194 states have internal predecessors, (1919), 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) [2023-12-15 23:07:43,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 2122 transitions. [2023-12-15 23:07:43,473 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 2122 transitions. Word has length 130 [2023-12-15 23:07:43,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:43,473 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 2122 transitions. [2023-12-15 23:07:43,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:43,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 2122 transitions. [2023-12-15 23:07:43,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 23:07:43,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:43,475 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] [2023-12-15 23:07:43,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 23:07:43,475 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:43,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:43,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1417618126, now seen corresponding path program 1 times [2023-12-15 23:07:43,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:43,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691156436] [2023-12-15 23:07:43,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:43,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:43,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:43,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 23:07:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:43,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:07:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:43,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 23:07:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:43,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:07:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:43,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:43,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:43,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691156436] [2023-12-15 23:07:43,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691156436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:43,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:43,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:43,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593748473] [2023-12-15 23:07:43,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:43,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:43,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:43,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:43,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:43,762 INFO L87 Difference]: Start difference. First operand 1319 states and 2122 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:45,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:45,090 INFO L93 Difference]: Finished difference Result 3154 states and 5169 transitions. [2023-12-15 23:07:45,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:07:45,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2023-12-15 23:07:45,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:45,098 INFO L225 Difference]: With dead ends: 3154 [2023-12-15 23:07:45,098 INFO L226 Difference]: Without dead ends: 1850 [2023-12-15 23:07:45,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:07:45,103 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 963 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:45,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 685 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 23:07:45,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2023-12-15 23:07:45,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1319. [2023-12-15 23:07:45,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1189 states have (on average 1.6097560975609757) internal successors, (1914), 1194 states have internal predecessors, (1914), 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) [2023-12-15 23:07:45,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 2117 transitions. [2023-12-15 23:07:45,175 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 2117 transitions. Word has length 130 [2023-12-15 23:07:45,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:45,176 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 2117 transitions. [2023-12-15 23:07:45,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:45,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 2117 transitions. [2023-12-15 23:07:45,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 23:07:45,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:45,178 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] [2023-12-15 23:07:45,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 23:07:45,178 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:45,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:45,179 INFO L85 PathProgramCache]: Analyzing trace with hash -713732596, now seen corresponding path program 1 times [2023-12-15 23:07:45,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:45,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925602547] [2023-12-15 23:07:45,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:45,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:45,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:45,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 23:07:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:45,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:07:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:45,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 23:07:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:45,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:07:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:45,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:45,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:45,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925602547] [2023-12-15 23:07:45,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925602547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:45,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:45,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:45,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258753470] [2023-12-15 23:07:45,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:45,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:45,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:45,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:45,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:45,386 INFO L87 Difference]: Start difference. First operand 1319 states and 2117 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:46,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:46,879 INFO L93 Difference]: Finished difference Result 3148 states and 5143 transitions. [2023-12-15 23:07:46,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:07:46,880 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2023-12-15 23:07:46,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:46,893 INFO L225 Difference]: With dead ends: 3148 [2023-12-15 23:07:46,893 INFO L226 Difference]: Without dead ends: 1844 [2023-12-15 23:07:46,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:07:46,897 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 847 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:46,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 815 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 23:07:46,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2023-12-15 23:07:46,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1319. [2023-12-15 23:07:46,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1189 states have (on average 1.6055508830950378) internal successors, (1909), 1194 states have internal predecessors, (1909), 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) [2023-12-15 23:07:46,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 2112 transitions. [2023-12-15 23:07:46,964 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 2112 transitions. Word has length 130 [2023-12-15 23:07:46,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:46,965 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 2112 transitions. [2023-12-15 23:07:46,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:46,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 2112 transitions. [2023-12-15 23:07:46,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 23:07:46,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:46,966 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] [2023-12-15 23:07:46,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 23:07:46,967 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:46,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:46,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1752317170, now seen corresponding path program 1 times [2023-12-15 23:07:46,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:46,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685997716] [2023-12-15 23:07:46,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:46,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:47,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:47,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 23:07:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:47,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:07:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:47,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 23:07:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:47,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:07:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:47,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:47,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:47,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685997716] [2023-12-15 23:07:47,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685997716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:47,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:47,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:47,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058729025] [2023-12-15 23:07:47,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:47,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:47,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:47,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:47,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:47,193 INFO L87 Difference]: Start difference. First operand 1319 states and 2112 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:49,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:49,777 INFO L93 Difference]: Finished difference Result 4501 states and 7316 transitions. [2023-12-15 23:07:49,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:07:49,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2023-12-15 23:07:49,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:49,799 INFO L225 Difference]: With dead ends: 4501 [2023-12-15 23:07:49,800 INFO L226 Difference]: Without dead ends: 3197 [2023-12-15 23:07:49,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 23:07:49,805 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 1240 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 2356 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:49,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 1042 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2356 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-15 23:07:49,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2023-12-15 23:07:49,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2355. [2023-12-15 23:07:49,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2125 states have (on average 1.5995294117647059) internal successors, (3399), 2134 states have internal predecessors, (3399), 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) [2023-12-15 23:07:49,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 3768 transitions. [2023-12-15 23:07:49,927 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 3768 transitions. Word has length 130 [2023-12-15 23:07:49,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:49,928 INFO L495 AbstractCegarLoop]: Abstraction has 2355 states and 3768 transitions. [2023-12-15 23:07:49,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:49,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 3768 transitions. [2023-12-15 23:07:49,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 23:07:49,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:49,931 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] [2023-12-15 23:07:49,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 23:07:49,931 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:49,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:49,932 INFO L85 PathProgramCache]: Analyzing trace with hash 400789648, now seen corresponding path program 1 times [2023-12-15 23:07:49,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:49,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641188486] [2023-12-15 23:07:49,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:49,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:50,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:50,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 23:07:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:50,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:07:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:50,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 23:07:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:50,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:07:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:50,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:50,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:50,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641188486] [2023-12-15 23:07:50,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641188486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:50,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:50,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:50,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585971630] [2023-12-15 23:07:50,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:50,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:50,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:50,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:50,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:50,146 INFO L87 Difference]: Start difference. First operand 2355 states and 3768 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:51,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:51,307 INFO L93 Difference]: Finished difference Result 5550 states and 9023 transitions. [2023-12-15 23:07:51,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:07:51,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2023-12-15 23:07:51,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:51,324 INFO L225 Difference]: With dead ends: 5550 [2023-12-15 23:07:51,325 INFO L226 Difference]: Without dead ends: 3210 [2023-12-15 23:07:51,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:07:51,332 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 964 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:51,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [981 Valid, 685 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 23:07:51,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2023-12-15 23:07:51,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 2355. [2023-12-15 23:07:51,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2125 states have (on average 1.5952941176470588) internal successors, (3390), 2134 states have internal predecessors, (3390), 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) [2023-12-15 23:07:51,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 3759 transitions. [2023-12-15 23:07:51,472 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 3759 transitions. Word has length 130 [2023-12-15 23:07:51,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:51,473 INFO L495 AbstractCegarLoop]: Abstraction has 2355 states and 3759 transitions. [2023-12-15 23:07:51,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:51,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 3759 transitions. [2023-12-15 23:07:51,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 23:07:51,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:51,475 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] [2023-12-15 23:07:51,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 23:07:51,476 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:51,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:51,476 INFO L85 PathProgramCache]: Analyzing trace with hash -222491954, now seen corresponding path program 1 times [2023-12-15 23:07:51,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:51,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680195049] [2023-12-15 23:07:51,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:51,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:51,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:51,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 23:07:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:51,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:07:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:51,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 23:07:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:51,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:07:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:51,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:51,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:51,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680195049] [2023-12-15 23:07:51,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680195049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:51,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:51,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:51,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032028951] [2023-12-15 23:07:51,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:51,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:51,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:51,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:51,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:51,688 INFO L87 Difference]: Start difference. First operand 2355 states and 3759 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:54,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:54,304 INFO L93 Difference]: Finished difference Result 8225 states and 13306 transitions. [2023-12-15 23:07:54,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:07:54,305 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2023-12-15 23:07:54,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:54,334 INFO L225 Difference]: With dead ends: 8225 [2023-12-15 23:07:54,334 INFO L226 Difference]: Without dead ends: 5885 [2023-12-15 23:07:54,344 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 [2023-12-15 23:07:54,344 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 1149 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 2789 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 2846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:54,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 1589 Invalid, 2846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2789 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-15 23:07:54,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5885 states. [2023-12-15 23:07:54,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5885 to 4437. [2023-12-15 23:07:54,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4437 states, 4007 states have (on average 1.5897179935113552) internal successors, (6370), 4024 states have internal predecessors, (6370), 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) [2023-12-15 23:07:54,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4437 states to 4437 states and 7089 transitions. [2023-12-15 23:07:54,589 INFO L78 Accepts]: Start accepts. Automaton has 4437 states and 7089 transitions. Word has length 130 [2023-12-15 23:07:54,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:54,589 INFO L495 AbstractCegarLoop]: Abstraction has 4437 states and 7089 transitions. [2023-12-15 23:07:54,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:54,589 INFO L276 IsEmpty]: Start isEmpty. Operand 4437 states and 7089 transitions. [2023-12-15 23:07:54,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 23:07:54,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:54,593 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] [2023-12-15 23:07:54,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 23:07:54,594 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:54,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:54,594 INFO L85 PathProgramCache]: Analyzing trace with hash -104050480, now seen corresponding path program 1 times [2023-12-15 23:07:54,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:54,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943493073] [2023-12-15 23:07:54,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:54,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:54,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:54,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 23:07:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:54,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:07:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:54,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 23:07:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:54,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:07:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:54,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:54,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:54,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943493073] [2023-12-15 23:07:54,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943493073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:54,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:54,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:54,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614195152] [2023-12-15 23:07:54,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:54,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:54,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:54,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:54,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:54,792 INFO L87 Difference]: Start difference. First operand 4437 states and 7089 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:57,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:57,541 INFO L93 Difference]: Finished difference Result 15689 states and 25418 transitions. [2023-12-15 23:07:57,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:07:57,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2023-12-15 23:07:57,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:57,593 INFO L225 Difference]: With dead ends: 15689 [2023-12-15 23:07:57,593 INFO L226 Difference]: Without dead ends: 11267 [2023-12-15 23:07:57,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 23:07:57,610 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 1148 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 2776 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 1589 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 [2023-12-15 23:07:57,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 1589 Invalid, 2833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2776 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-15 23:07:57,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11267 states. [2023-12-15 23:07:58,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11267 to 8614. [2023-12-15 23:07:58,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8614 states, 7784 states have (on average 1.5863309352517985) internal successors, (12348), 7817 states have internal predecessors, (12348), 599 states have call successors, (599), 198 states have call predecessors, (599), 230 states have return successors, (874), 630 states have call predecessors, (874), 599 states have call successors, (874) [2023-12-15 23:07:58,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8614 states to 8614 states and 13821 transitions. [2023-12-15 23:07:58,106 INFO L78 Accepts]: Start accepts. Automaton has 8614 states and 13821 transitions. Word has length 130 [2023-12-15 23:07:58,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:58,106 INFO L495 AbstractCegarLoop]: Abstraction has 8614 states and 13821 transitions. [2023-12-15 23:07:58,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:07:58,107 INFO L276 IsEmpty]: Start isEmpty. Operand 8614 states and 13821 transitions. [2023-12-15 23:07:58,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 23:07:58,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:58,114 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] [2023-12-15 23:07:58,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 23:07:58,114 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:58,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:58,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1285243534, now seen corresponding path program 1 times [2023-12-15 23:07:58,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:58,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642715631] [2023-12-15 23:07:58,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:58,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:58,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:58,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 23:07:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:58,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:07:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:58,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 23:07:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:58,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:07:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:58,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:58,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:58,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642715631] [2023-12-15 23:07:58,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642715631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:58,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:58,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:58,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349171818] [2023-12-15 23:07:58,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:58,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:58,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:58,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:58,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:58,322 INFO L87 Difference]: Start difference. First operand 8614 states and 13821 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:08:01,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:08:01,529 INFO L93 Difference]: Finished difference Result 34328 states and 55818 transitions. [2023-12-15 23:08:01,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:08:01,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2023-12-15 23:08:01,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:08:01,639 INFO L225 Difference]: With dead ends: 34328 [2023-12-15 23:08:01,640 INFO L226 Difference]: Without dead ends: 25729 [2023-12-15 23:08:01,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:08:01,675 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 1476 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 2753 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 2813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:08:01,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1582 Invalid, 2813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2753 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-15 23:08:01,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25729 states. [2023-12-15 23:08:02,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25729 to 16935. [2023-12-15 23:08:02,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16935 states, 15337 states have (on average 1.5855773619351894) internal successors, (24318), 15402 states have internal predecessors, (24318), 1143 states have call successors, (1143), 390 states have call predecessors, (1143), 454 states have return successors, (1936), 1206 states have call predecessors, (1936), 1143 states have call successors, (1936) [2023-12-15 23:08:02,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16935 states to 16935 states and 27397 transitions. [2023-12-15 23:08:02,686 INFO L78 Accepts]: Start accepts. Automaton has 16935 states and 27397 transitions. Word has length 130 [2023-12-15 23:08:02,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:08:02,687 INFO L495 AbstractCegarLoop]: Abstraction has 16935 states and 27397 transitions. [2023-12-15 23:08:02,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:08:02,687 INFO L276 IsEmpty]: Start isEmpty. Operand 16935 states and 27397 transitions. [2023-12-15 23:08:02,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 23:08:02,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:08:02,706 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] [2023-12-15 23:08:02,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 23:08:02,706 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:08:02,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:08:02,706 INFO L85 PathProgramCache]: Analyzing trace with hash -748150512, now seen corresponding path program 1 times [2023-12-15 23:08:02,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:08:02,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453724919] [2023-12-15 23:08:02,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:08:02,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:08:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:02,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:08:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:02,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 23:08:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:02,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:08:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:02,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 23:08:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:02,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:08:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:02,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:08:02,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:08:02,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453724919] [2023-12-15 23:08:02,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453724919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:08:02,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:08:02,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:08:02,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932228319] [2023-12-15 23:08:02,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:08:02,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:08:02,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:08:02,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:08:02,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:08:02,903 INFO L87 Difference]: Start difference. First operand 16935 states and 27397 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:08:06,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:08:06,720 INFO L93 Difference]: Finished difference Result 66999 states and 109792 transitions. [2023-12-15 23:08:06,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:08:06,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2023-12-15 23:08:06,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:08:06,922 INFO L225 Difference]: With dead ends: 66999 [2023-12-15 23:08:06,922 INFO L226 Difference]: Without dead ends: 50079 [2023-12-15 23:08:06,973 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 [2023-12-15 23:08:06,974 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 1219 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 3248 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 3307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:08:06,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 1578 Invalid, 3307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3248 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-15 23:08:07,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50079 states. [2023-12-15 23:08:08,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50079 to 33256. [2023-12-15 23:08:08,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33256 states, 30154 states have (on average 1.5854612986668435) internal successors, (47808), 30283 states have internal predecessors, (47808), 2199 states have call successors, (2199), 774 states have call predecessors, (2199), 902 states have return successors, (4514), 2326 states have call predecessors, (4514), 2199 states have call successors, (4514) [2023-12-15 23:08:08,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33256 states to 33256 states and 54521 transitions. [2023-12-15 23:08:08,861 INFO L78 Accepts]: Start accepts. Automaton has 33256 states and 54521 transitions. Word has length 130 [2023-12-15 23:08:08,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:08:08,862 INFO L495 AbstractCegarLoop]: Abstraction has 33256 states and 54521 transitions. [2023-12-15 23:08:08,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:08:08,862 INFO L276 IsEmpty]: Start isEmpty. Operand 33256 states and 54521 transitions. [2023-12-15 23:08:08,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 23:08:08,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:08:08,885 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] [2023-12-15 23:08:08,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 23:08:08,885 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:08:08,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:08:08,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1680108110, now seen corresponding path program 1 times [2023-12-15 23:08:08,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:08:08,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650217569] [2023-12-15 23:08:08,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:08:08,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:08:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:08,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:08:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:08,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 23:08:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:09,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:08:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:09,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 23:08:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:08:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:09,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:08:09,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:08:09,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650217569] [2023-12-15 23:08:09,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650217569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:08:09,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:08:09,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:08:09,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721314279] [2023-12-15 23:08:09,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:08:09,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:08:09,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:08:09,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:08:09,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:08:09,066 INFO L87 Difference]: Start difference. First operand 33256 states and 54521 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:08:11,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:08:11,648 INFO L93 Difference]: Finished difference Result 76630 states and 128228 transitions. [2023-12-15 23:08:11,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:08:11,649 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2023-12-15 23:08:11,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:08:11,813 INFO L225 Difference]: With dead ends: 76630 [2023-12-15 23:08:11,813 INFO L226 Difference]: Without dead ends: 43389 [2023-12-15 23:08:11,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:08:11,886 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 970 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:08:11,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 684 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 23:08:11,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43389 states. [2023-12-15 23:08:13,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43389 to 33256. [2023-12-15 23:08:13,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33256 states, 30154 states have (on average 1.5811832592690853) internal successors, (47679), 30283 states have internal predecessors, (47679), 2199 states have call successors, (2199), 774 states have call predecessors, (2199), 902 states have return successors, (4514), 2326 states have call predecessors, (4514), 2199 states have call successors, (4514) [2023-12-15 23:08:13,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33256 states to 33256 states and 54392 transitions. [2023-12-15 23:08:13,964 INFO L78 Accepts]: Start accepts. Automaton has 33256 states and 54392 transitions. Word has length 130 [2023-12-15 23:08:13,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:08:13,964 INFO L495 AbstractCegarLoop]: Abstraction has 33256 states and 54392 transitions. [2023-12-15 23:08:13,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:08:13,964 INFO L276 IsEmpty]: Start isEmpty. Operand 33256 states and 54392 transitions. [2023-12-15 23:08:13,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 23:08:13,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:08:13,987 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] [2023-12-15 23:08:13,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 23:08:13,988 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:08:13,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:08:13,989 INFO L85 PathProgramCache]: Analyzing trace with hash 372965712, now seen corresponding path program 1 times [2023-12-15 23:08:13,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:08:13,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168103357] [2023-12-15 23:08:13,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:08:13,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:08:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:14,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:08:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:14,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 23:08:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:14,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:08:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 23:08:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:14,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:08:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:14,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:08:14,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:08:14,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168103357] [2023-12-15 23:08:14,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168103357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:08:14,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:08:14,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:08:14,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358171140] [2023-12-15 23:08:14,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:08:14,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:08:14,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:08:14,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:08:14,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:08:14,172 INFO L87 Difference]: Start difference. First operand 33256 states and 54392 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-12-15 23:08:18,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:08:18,798 INFO L93 Difference]: Finished difference Result 127154 states and 210714 transitions. [2023-12-15 23:08:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:08:18,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2023-12-15 23:08:18,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:08:19,120 INFO L225 Difference]: With dead ends: 127154 [2023-12-15 23:08:19,120 INFO L226 Difference]: Without dead ends: 93913 [2023-12-15 23:08:19,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:08:19,205 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 1254 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 2642 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:08:19,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1269 Valid, 1042 Invalid, 2729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2642 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-15 23:08:19,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93913 states. Received shutdown request... [2023-12-15 23:08:20,667 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 [2023-12-15 23:08:21,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-15 23:08:22,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93913 to 66475. [2023-12-15 23:08:22,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66475 states, 60429 states have (on average 1.5813102980357114) internal successors, (95557), 60686 states have internal predecessors, (95557), 4247 states have call successors, (4247), 1542 states have call predecessors, (4247), 1798 states have return successors, (11064), 4502 states have call predecessors, (11064), 4247 states have call successors, (11064) [2023-12-15 23:08:22,487 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 23:08:22,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 23:08:22,489 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-15 23:08:22,492 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:08:22,493 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 23:08:22,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:08:22 BoogieIcfgContainer [2023-12-15 23:08:22,495 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 23:08:22,496 INFO L158 Benchmark]: Toolchain (without parser) took 51998.32ms. Allocated memory was 186.6MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 142.1MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-15 23:08:22,496 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 186.6MB. Free memory is still 143.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:08:22,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.13ms. Allocated memory is still 186.6MB. Free memory was 141.8MB in the beginning and 120.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-15 23:08:22,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.56ms. Allocated memory is still 186.6MB. Free memory was 120.8MB in the beginning and 117.3MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 23:08:22,496 INFO L158 Benchmark]: Boogie Preprocessor took 70.33ms. Allocated memory is still 186.6MB. Free memory was 117.3MB in the beginning and 113.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 23:08:22,497 INFO L158 Benchmark]: RCFGBuilder took 797.20ms. Allocated memory is still 186.6MB. Free memory was 112.8MB in the beginning and 124.3MB in the end (delta: -11.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-15 23:08:22,497 INFO L158 Benchmark]: TraceAbstraction took 50646.89ms. Allocated memory was 186.6MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 123.7MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-15 23:08:22,498 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 186.6MB. Free memory is still 143.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 419.13ms. Allocated memory is still 186.6MB. Free memory was 141.8MB in the beginning and 120.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.56ms. Allocated memory is still 186.6MB. Free memory was 120.8MB in the beginning and 117.3MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 70.33ms. Allocated memory is still 186.6MB. Free memory was 117.3MB in the beginning and 113.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 797.20ms. Allocated memory is still 186.6MB. Free memory was 112.8MB in the beginning and 124.3MB in the end (delta: -11.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 50646.89ms. Allocated memory was 186.6MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 123.7MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.4GB. 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: 20]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 20). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 279 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.6s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 37.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15725 SdHoareTripleChecker+Valid, 23.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15484 mSDsluCounter, 15814 SdHoareTripleChecker+Invalid, 20.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11884 mSDsCounter, 972 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30318 IncrementalHoareTripleChecker+Invalid, 31290 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 972 mSolverCounterUnsat, 3930 mSDtfsCounter, 30318 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 348 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33256occurred in iteration=12, InterpolantAutomatonStates: 159, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 43777 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1820 NumberOfCodeBlocks, 1820 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1806 ConstructedInterpolants, 0 QuantifiedInterpolants, 5302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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