/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/combinations/Problem05_label48+token_ring.13.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-18 22:33:25,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-18 22:33:25,774 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-18 22:33:25,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-18 22:33:25,778 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-18 22:33:25,796 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-18 22:33:25,796 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-18 22:33:25,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-18 22:33:25,797 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-18 22:33:25,797 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-18 22:33:25,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-18 22:33:25,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-18 22:33:25,798 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-18 22:33:25,798 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-18 22:33:25,799 INFO L153 SettingsManager]: * Use SBE=true [2023-12-18 22:33:25,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-18 22:33:25,799 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-18 22:33:25,800 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-18 22:33:25,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-18 22:33:25,800 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-18 22:33:25,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-18 22:33:25,801 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-18 22:33:25,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-18 22:33:25,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-18 22:33:25,802 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-18 22:33:25,802 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-18 22:33:25,803 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-18 22:33:25,803 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-18 22:33:25,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-18 22:33:25,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-18 22:33:25,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-18 22:33:25,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-18 22:33:25,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 22:33:25,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-18 22:33:25,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-18 22:33:25,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-18 22:33:25,805 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-18 22:33:25,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-18 22:33:25,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-18 22:33:25,806 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-18 22:33:25,806 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-18 22:33:25,807 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-18 22:33:25,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-18 22:33:25,807 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-18 22:33:25,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-18 22:33:25,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-18 22:33:25,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-18 22:33:26,001 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-18 22:33:26,001 INFO L274 PluginConnector]: CDTParser initialized [2023-12-18 22:33:26,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label48+token_ring.13.cil-2.c [2023-12-18 22:33:27,236 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-18 22:33:27,801 INFO L384 CDTParser]: Found 1 translation units. [2023-12-18 22:33:27,802 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label48+token_ring.13.cil-2.c [2023-12-18 22:33:27,856 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaaf39d07/6c53c123aece44c3adcbe3a69fab72cb/FLAG5286b64cf [2023-12-18 22:33:27,872 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaaf39d07/6c53c123aece44c3adcbe3a69fab72cb [2023-12-18 22:33:27,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-18 22:33:27,877 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-18 22:33:27,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-18 22:33:27,880 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-18 22:33:27,884 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-18 22:33:27,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:33:27" (1/1) ... [2023-12-18 22:33:27,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@593aa5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:27, skipping insertion in model container [2023-12-18 22:33:27,886 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:33:27" (1/1) ... [2023-12-18 22:33:28,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-18 22:33:29,733 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label48+token_ring.13.cil-2.c[375709,375722] [2023-12-18 22:33:29,763 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label48+token_ring.13.cil-2.c[383339,383352] [2023-12-18 22:33:30,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 22:33:30,124 INFO L202 MainTranslator]: Completed pre-run [2023-12-18 22:33:30,834 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label48+token_ring.13.cil-2.c[375709,375722] [2023-12-18 22:33:30,842 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label48+token_ring.13.cil-2.c[383339,383352] [2023-12-18 22:33:30,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 22:33:30,923 INFO L206 MainTranslator]: Completed translation [2023-12-18 22:33:30,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:30 WrapperNode [2023-12-18 22:33:30,923 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-18 22:33:30,924 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-18 22:33:30,925 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-18 22:33:30,925 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-18 22:33:30,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:30" (1/1) ... [2023-12-18 22:33:31,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:30" (1/1) ... [2023-12-18 22:33:31,388 INFO L138 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13293 [2023-12-18 22:33:31,388 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-18 22:33:31,389 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-18 22:33:31,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-18 22:33:31,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-18 22:33:31,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:30" (1/1) ... [2023-12-18 22:33:31,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:30" (1/1) ... [2023-12-18 22:33:31,536 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:30" (1/1) ... [2023-12-18 22:33:31,657 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]. [2023-12-18 22:33:31,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:30" (1/1) ... [2023-12-18 22:33:31,658 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:30" (1/1) ... [2023-12-18 22:33:31,857 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:30" (1/1) ... [2023-12-18 22:33:31,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:30" (1/1) ... [2023-12-18 22:33:31,933 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:30" (1/1) ... [2023-12-18 22:33:31,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:30" (1/1) ... [2023-12-18 22:33:32,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-18 22:33:32,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-18 22:33:32,014 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-18 22:33:32,014 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-18 22:33:32,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:30" (1/1) ... [2023-12-18 22:33:32,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 22:33:32,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:33:32,039 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) [2023-12-18 22:33:32,040 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 [2023-12-18 22:33:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-18 22:33:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-18 22:33:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-18 22:33:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-18 22:33:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-18 22:33:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-18 22:33:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-18 22:33:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-18 22:33:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-18 22:33:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-18 22:33:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-18 22:33:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-18 22:33:32,130 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-18 22:33:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-18 22:33:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-18 22:33:32,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-18 22:33:32,253 INFO L241 CfgBuilder]: Building ICFG [2023-12-18 22:33:32,255 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-18 22:33:39,149 INFO L282 CfgBuilder]: Performing block encoding [2023-12-18 22:33:39,241 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-18 22:33:39,241 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-12-18 22:33:39,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:33:39 BoogieIcfgContainer [2023-12-18 22:33:39,242 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-18 22:33:39,244 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-18 22:33:39,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-18 22:33:39,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-18 22:33:39,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:33:27" (1/3) ... [2023-12-18 22:33:39,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654aad28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:33:39, skipping insertion in model container [2023-12-18 22:33:39,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:30" (2/3) ... [2023-12-18 22:33:39,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654aad28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:33:39, skipping insertion in model container [2023-12-18 22:33:39,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:33:39" (3/3) ... [2023-12-18 22:33:39,251 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label48+token_ring.13.cil-2.c [2023-12-18 22:33:39,266 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-18 22:33:39,266 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-18 22:33:39,345 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-18 22:33:39,352 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;@18cc8e98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-18 22:33:39,352 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-18 22:33:39,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 2494 states, 2458 states have (on average 1.8746948738812041) internal successors, (4608), 2461 states have internal predecessors, (4608), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-18 22:33:39,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:33:39,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:39,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:33:39,382 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:39,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:39,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1072822453, now seen corresponding path program 1 times [2023-12-18 22:33:39,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:39,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413741238] [2023-12-18 22:33:39,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:39,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:39,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:39,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:33:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:39,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:33:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:40,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:33:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:40,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:33:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:40,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:40,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:40,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413741238] [2023-12-18 22:33:40,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413741238] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:40,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:40,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:40,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771988885] [2023-12-18 22:33:40,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:40,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:40,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:40,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:40,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:40,177 INFO L87 Difference]: Start difference. First operand has 2494 states, 2458 states have (on average 1.8746948738812041) internal successors, (4608), 2461 states have internal predecessors, (4608), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:33:43,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:43,722 INFO L93 Difference]: Finished difference Result 5170 states and 9654 transitions. [2023-12-18 22:33:43,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-18 22:33:43,725 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:33:43,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:43,760 INFO L225 Difference]: With dead ends: 5170 [2023-12-18 22:33:43,761 INFO L226 Difference]: Without dead ends: 2678 [2023-12-18 22:33:43,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-18 22:33:43,777 INFO L413 NwaCegarLoop]: 4276 mSDtfsCounter, 1247 mSDsluCounter, 20684 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 24960 SdHoareTripleChecker+Invalid, 2317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:43,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 24960 Invalid, 2317 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 2256 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-18 22:33:43,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2023-12-18 22:33:43,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 2492. [2023-12-18 22:33:43,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 2457 states have (on average 1.8347578347578348) internal successors, (4508), 2459 states have internal predecessors, (4508), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-18 22:33:43,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 4562 transitions. [2023-12-18 22:33:43,944 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 4562 transitions. Word has length 171 [2023-12-18 22:33:43,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:43,945 INFO L495 AbstractCegarLoop]: Abstraction has 2492 states and 4562 transitions. [2023-12-18 22:33:43,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:33:43,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 4562 transitions. [2023-12-18 22:33:43,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:33:43,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:43,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:33:43,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-18 22:33:43,955 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:43,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:43,956 INFO L85 PathProgramCache]: Analyzing trace with hash 772742091, now seen corresponding path program 1 times [2023-12-18 22:33:43,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:43,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538764303] [2023-12-18 22:33:43,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:43,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:44,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:44,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:33:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:44,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:33:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:44,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:33:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:44,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:33:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:44,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:44,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:44,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538764303] [2023-12-18 22:33:44,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538764303] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:44,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:44,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-18 22:33:44,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922017550] [2023-12-18 22:33:44,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:44,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-18 22:33:44,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:44,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-18 22:33:44,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-18 22:33:44,234 INFO L87 Difference]: Start difference. First operand 2492 states and 4562 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:33:46,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:46,264 INFO L93 Difference]: Finished difference Result 2990 states and 5392 transitions. [2023-12-18 22:33:46,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-18 22:33:46,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:33:46,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:46,280 INFO L225 Difference]: With dead ends: 2990 [2023-12-18 22:33:46,280 INFO L226 Difference]: Without dead ends: 2634 [2023-12-18 22:33:46,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-18 22:33:46,285 INFO L413 NwaCegarLoop]: 4272 mSDtfsCounter, 1036 mSDsluCounter, 12217 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 16489 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:46,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 16489 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-18 22:33:46,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2023-12-18 22:33:46,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2492. [2023-12-18 22:33:46,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 2457 states have (on average 1.8343508343508343) internal successors, (4507), 2459 states have internal predecessors, (4507), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-18 22:33:46,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 4561 transitions. [2023-12-18 22:33:46,360 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 4561 transitions. Word has length 171 [2023-12-18 22:33:46,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:46,362 INFO L495 AbstractCegarLoop]: Abstraction has 2492 states and 4561 transitions. [2023-12-18 22:33:46,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:33:46,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 4561 transitions. [2023-12-18 22:33:46,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:33:46,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:46,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:33:46,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-18 22:33:46,365 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:46,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:46,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1384011149, now seen corresponding path program 1 times [2023-12-18 22:33:46,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:46,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128236757] [2023-12-18 22:33:46,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:46,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:46,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:46,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:33:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:46,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:33:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:46,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:33:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:46,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:33:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:46,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:46,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:46,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128236757] [2023-12-18 22:33:46,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128236757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:46,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:46,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-18 22:33:46,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105527143] [2023-12-18 22:33:46,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:46,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-18 22:33:46,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:46,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-18 22:33:46,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-18 22:33:46,768 INFO L87 Difference]: Start difference. First operand 2492 states and 4561 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:33:50,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:50,013 INFO L93 Difference]: Finished difference Result 3501 states and 6249 transitions. [2023-12-18 22:33:50,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-18 22:33:50,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:33:50,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:50,029 INFO L225 Difference]: With dead ends: 3501 [2023-12-18 22:33:50,030 INFO L226 Difference]: Without dead ends: 3149 [2023-12-18 22:33:50,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:33:50,035 INFO L413 NwaCegarLoop]: 4238 mSDtfsCounter, 5542 mSDsluCounter, 12708 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 16946 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:50,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5562 Valid, 16946 Invalid, 2578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-18 22:33:50,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2023-12-18 22:33:50,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 2866. [2023-12-18 22:33:50,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2802 states have (on average 1.8115631691648821) internal successors, (5076), 2805 states have internal predecessors, (5076), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2023-12-18 22:33:50,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 5177 transitions. [2023-12-18 22:33:50,123 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 5177 transitions. Word has length 171 [2023-12-18 22:33:50,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:50,124 INFO L495 AbstractCegarLoop]: Abstraction has 2866 states and 5177 transitions. [2023-12-18 22:33:50,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:33:50,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 5177 transitions. [2023-12-18 22:33:50,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:33:50,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:50,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:33:50,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-18 22:33:50,127 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:50,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:50,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1631607407, now seen corresponding path program 1 times [2023-12-18 22:33:50,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:50,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987844441] [2023-12-18 22:33:50,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:50,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:50,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:50,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:33:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:50,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:33:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:50,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:33:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:50,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:33:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:50,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:50,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:50,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987844441] [2023-12-18 22:33:50,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987844441] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:50,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:50,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:50,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882081665] [2023-12-18 22:33:50,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:50,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:50,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:50,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:50,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:50,448 INFO L87 Difference]: Start difference. First operand 2866 states and 5177 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:33:54,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:54,757 INFO L93 Difference]: Finished difference Result 4412 states and 7765 transitions. [2023-12-18 22:33:54,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:33:54,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:33:54,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:54,774 INFO L225 Difference]: With dead ends: 4412 [2023-12-18 22:33:54,775 INFO L226 Difference]: Without dead ends: 3686 [2023-12-18 22:33:54,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:33:54,780 INFO L413 NwaCegarLoop]: 4449 mSDtfsCounter, 5591 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3997 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5611 SdHoareTripleChecker+Valid, 21912 SdHoareTripleChecker+Invalid, 4060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:54,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5611 Valid, 21912 Invalid, 4060 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3997 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-18 22:33:54,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2023-12-18 22:33:54,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3211. [2023-12-18 22:33:54,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3118 states have (on average 1.7918537524053881) internal successors, (5587), 3122 states have internal predecessors, (5587), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-18 22:33:54,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 5734 transitions. [2023-12-18 22:33:54,885 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 5734 transitions. Word has length 171 [2023-12-18 22:33:54,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:54,885 INFO L495 AbstractCegarLoop]: Abstraction has 3211 states and 5734 transitions. [2023-12-18 22:33:54,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:33:54,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 5734 transitions. [2023-12-18 22:33:54,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:33:54,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:54,888 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:33:54,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-18 22:33:54,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:54,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:54,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1896254897, now seen corresponding path program 1 times [2023-12-18 22:33:54,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:54,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553295234] [2023-12-18 22:33:54,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:54,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:55,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:55,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:33:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:55,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:33:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:55,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:33:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:55,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:33:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:55,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:55,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:55,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553295234] [2023-12-18 22:33:55,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553295234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:55,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:55,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:55,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648849985] [2023-12-18 22:33:55,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:55,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:55,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:55,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:55,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:55,391 INFO L87 Difference]: Start difference. First operand 3211 states and 5734 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:33:57,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:57,279 INFO L93 Difference]: Finished difference Result 4777 states and 8368 transitions. [2023-12-18 22:33:57,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:33:57,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:33:57,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:57,296 INFO L225 Difference]: With dead ends: 4777 [2023-12-18 22:33:57,296 INFO L226 Difference]: Without dead ends: 3706 [2023-12-18 22:33:57,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:33:57,302 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5278 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5299 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:57,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5299 Valid, 16750 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1847 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-18 22:33:57,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3706 states. [2023-12-18 22:33:57,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3706 to 3211. [2023-12-18 22:33:57,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3118 states have (on average 1.790891597177678) internal successors, (5584), 3122 states have internal predecessors, (5584), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-18 22:33:57,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 5731 transitions. [2023-12-18 22:33:57,426 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 5731 transitions. Word has length 171 [2023-12-18 22:33:57,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:57,427 INFO L495 AbstractCegarLoop]: Abstraction has 3211 states and 5731 transitions. [2023-12-18 22:33:57,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:33:57,427 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 5731 transitions. [2023-12-18 22:33:57,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:33:57,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:57,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:33:57,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-18 22:33:57,430 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:57,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:57,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1075533453, now seen corresponding path program 1 times [2023-12-18 22:33:57,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:57,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910920252] [2023-12-18 22:33:57,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:57,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:57,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:57,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:33:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:57,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:33:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:57,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:33:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:57,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:33:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:57,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:57,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:57,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910920252] [2023-12-18 22:33:57,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910920252] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:57,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:57,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:57,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866850806] [2023-12-18 22:33:57,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:57,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:57,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:57,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:57,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:57,793 INFO L87 Difference]: Start difference. First operand 3211 states and 5731 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:33:59,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:59,763 INFO L93 Difference]: Finished difference Result 4773 states and 8351 transitions. [2023-12-18 22:33:59,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:33:59,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:33:59,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:59,780 INFO L225 Difference]: With dead ends: 4773 [2023-12-18 22:33:59,780 INFO L226 Difference]: Without dead ends: 3702 [2023-12-18 22:33:59,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:33:59,785 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5276 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5297 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:59,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5297 Valid, 16750 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-18 22:33:59,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3702 states. [2023-12-18 22:33:59,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3702 to 3211. [2023-12-18 22:33:59,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3118 states have (on average 1.7899294419499678) internal successors, (5581), 3122 states have internal predecessors, (5581), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-18 22:33:59,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 5728 transitions. [2023-12-18 22:33:59,896 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 5728 transitions. Word has length 171 [2023-12-18 22:33:59,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:59,897 INFO L495 AbstractCegarLoop]: Abstraction has 3211 states and 5728 transitions. [2023-12-18 22:33:59,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:33:59,897 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 5728 transitions. [2023-12-18 22:33:59,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:33:59,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:59,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:33:59,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-18 22:33:59,900 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:59,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:59,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1322454385, now seen corresponding path program 1 times [2023-12-18 22:33:59,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:59,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31915026] [2023-12-18 22:33:59,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:59,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:00,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:00,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:34:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:00,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:34:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:00,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:34:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:00,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:34:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:00,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:00,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:00,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31915026] [2023-12-18 22:34:00,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31915026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:00,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:00,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:00,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341953790] [2023-12-18 22:34:00,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:00,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:00,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:00,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:00,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:00,209 INFO L87 Difference]: Start difference. First operand 3211 states and 5728 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:02,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:34:02,300 INFO L93 Difference]: Finished difference Result 4769 states and 8334 transitions. [2023-12-18 22:34:02,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:34:02,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:34:02,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:34:02,324 INFO L225 Difference]: With dead ends: 4769 [2023-12-18 22:34:02,324 INFO L226 Difference]: Without dead ends: 3698 [2023-12-18 22:34:02,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:34:02,332 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5111 mSDsluCounter, 16655 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5132 SdHoareTripleChecker+Valid, 20880 SdHoareTripleChecker+Invalid, 2082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-18 22:34:02,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5132 Valid, 20880 Invalid, 2082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-18 22:34:02,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2023-12-18 22:34:02,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3211. [2023-12-18 22:34:02,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3118 states have (on average 1.788967286722258) internal successors, (5578), 3122 states have internal predecessors, (5578), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-18 22:34:02,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 5725 transitions. [2023-12-18 22:34:02,424 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 5725 transitions. Word has length 171 [2023-12-18 22:34:02,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:34:02,425 INFO L495 AbstractCegarLoop]: Abstraction has 3211 states and 5725 transitions. [2023-12-18 22:34:02,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:02,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 5725 transitions. [2023-12-18 22:34:02,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:34:02,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:34:02,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:34:02,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-18 22:34:02,429 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:34:02,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:34:02,429 INFO L85 PathProgramCache]: Analyzing trace with hash -984166835, now seen corresponding path program 1 times [2023-12-18 22:34:02,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:34:02,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295270544] [2023-12-18 22:34:02,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:34:02,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:34:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:02,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:02,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:34:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:02,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:34:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:02,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:34:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:02,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:34:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:02,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:02,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:02,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295270544] [2023-12-18 22:34:02,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295270544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:02,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:02,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:02,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120860912] [2023-12-18 22:34:02,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:02,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:02,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:02,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:02,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:02,724 INFO L87 Difference]: Start difference. First operand 3211 states and 5725 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:06,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:34:06,425 INFO L93 Difference]: Finished difference Result 5735 states and 9906 transitions. [2023-12-18 22:34:06,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:34:06,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:34:06,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:34:06,451 INFO L225 Difference]: With dead ends: 5735 [2023-12-18 22:34:06,451 INFO L226 Difference]: Without dead ends: 4664 [2023-12-18 22:34:06,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:34:06,458 INFO L413 NwaCegarLoop]: 4247 mSDtfsCounter, 5674 mSDsluCounter, 16920 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5694 SdHoareTripleChecker+Valid, 21167 SdHoareTripleChecker+Invalid, 3358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-18 22:34:06,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5694 Valid, 21167 Invalid, 3358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [103 Valid, 3255 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-18 22:34:06,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4664 states. [2023-12-18 22:34:06,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4664 to 3914. [2023-12-18 22:34:06,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3914 states, 3763 states have (on average 1.7573744352909912) internal successors, (6613), 3769 states have internal predecessors, (6613), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-18 22:34:06,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 6856 transitions. [2023-12-18 22:34:06,584 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 6856 transitions. Word has length 171 [2023-12-18 22:34:06,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:34:06,586 INFO L495 AbstractCegarLoop]: Abstraction has 3914 states and 6856 transitions. [2023-12-18 22:34:06,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:06,586 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 6856 transitions. [2023-12-18 22:34:06,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:34:06,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:34:06,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:34:06,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-18 22:34:06,589 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:34:06,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:34:06,591 INFO L85 PathProgramCache]: Analyzing trace with hash -557612337, now seen corresponding path program 1 times [2023-12-18 22:34:06,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:34:06,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716261865] [2023-12-18 22:34:06,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:34:06,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:34:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:06,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:06,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:34:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:06,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:34:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:06,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:34:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:06,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:34:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:06,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:06,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:06,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716261865] [2023-12-18 22:34:06,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716261865] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:06,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:06,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:06,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017212821] [2023-12-18 22:34:06,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:06,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:06,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:06,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:06,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:06,865 INFO L87 Difference]: Start difference. First operand 3914 states and 6856 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:09,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:34:09,034 INFO L93 Difference]: Finished difference Result 6425 states and 11025 transitions. [2023-12-18 22:34:09,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:34:09,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:34:09,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:34:09,048 INFO L225 Difference]: With dead ends: 6425 [2023-12-18 22:34:09,049 INFO L226 Difference]: Without dead ends: 4651 [2023-12-18 22:34:09,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:34:09,054 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5110 mSDsluCounter, 16655 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5131 SdHoareTripleChecker+Valid, 20880 SdHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-18 22:34:09,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5131 Valid, 20880 Invalid, 2056 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-18 22:34:09,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4651 states. [2023-12-18 22:34:09,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4651 to 3914. [2023-12-18 22:34:09,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3914 states, 3763 states have (on average 1.7560457082115333) internal successors, (6608), 3769 states have internal predecessors, (6608), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-18 22:34:09,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 6851 transitions. [2023-12-18 22:34:09,188 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 6851 transitions. Word has length 171 [2023-12-18 22:34:09,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:34:09,188 INFO L495 AbstractCegarLoop]: Abstraction has 3914 states and 6851 transitions. [2023-12-18 22:34:09,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:09,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 6851 transitions. [2023-12-18 22:34:09,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:34:09,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:34:09,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:34:09,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-18 22:34:09,192 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:34:09,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:34:09,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1098041843, now seen corresponding path program 1 times [2023-12-18 22:34:09,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:34:09,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294440908] [2023-12-18 22:34:09,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:34:09,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:34:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:09,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:09,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:34:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:09,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:34:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:09,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:34:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:09,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:34:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:09,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:09,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:09,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294440908] [2023-12-18 22:34:09,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294440908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:09,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:09,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:09,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299210166] [2023-12-18 22:34:09,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:09,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:09,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:09,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:09,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:09,469 INFO L87 Difference]: Start difference. First operand 3914 states and 6851 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:13,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:34:13,357 INFO L93 Difference]: Finished difference Result 8296 states and 14053 transitions. [2023-12-18 22:34:13,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:34:13,358 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:34:13,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:34:13,378 INFO L225 Difference]: With dead ends: 8296 [2023-12-18 22:34:13,378 INFO L226 Difference]: Without dead ends: 6522 [2023-12-18 22:34:13,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:34:13,385 INFO L413 NwaCegarLoop]: 4447 mSDtfsCounter, 5556 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3863 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5576 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-18 22:34:13,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5576 Valid, 21910 Invalid, 3928 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3863 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-18 22:34:13,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2023-12-18 22:34:13,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 5320. [2023-12-18 22:34:13,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5320 states, 5053 states have (on average 1.7154165842074016) internal successors, (8668), 5063 states have internal predecessors, (8668), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2023-12-18 22:34:13,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5320 states to 5320 states and 9109 transitions. [2023-12-18 22:34:13,667 INFO L78 Accepts]: Start accepts. Automaton has 5320 states and 9109 transitions. Word has length 171 [2023-12-18 22:34:13,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:34:13,668 INFO L495 AbstractCegarLoop]: Abstraction has 5320 states and 9109 transitions. [2023-12-18 22:34:13,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:13,669 INFO L276 IsEmpty]: Start isEmpty. Operand 5320 states and 9109 transitions. [2023-12-18 22:34:13,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:34:13,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:34:13,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:34:13,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-18 22:34:13,672 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:34:13,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:34:13,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1254022385, now seen corresponding path program 1 times [2023-12-18 22:34:13,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:34:13,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936812795] [2023-12-18 22:34:13,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:34:13,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:34:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:13,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:34:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:13,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:34:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:13,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:34:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:13,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:34:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:13,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:13,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936812795] [2023-12-18 22:34:13,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936812795] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:13,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:13,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:13,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810013478] [2023-12-18 22:34:13,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:13,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:13,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:13,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:13,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:13,949 INFO L87 Difference]: Start difference. First operand 5320 states and 9109 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:17,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:34:17,898 INFO L93 Difference]: Finished difference Result 13424 states and 22401 transitions. [2023-12-18 22:34:17,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:34:17,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:34:17,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:34:17,937 INFO L225 Difference]: With dead ends: 13424 [2023-12-18 22:34:17,937 INFO L226 Difference]: Without dead ends: 10244 [2023-12-18 22:34:17,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:34:17,953 INFO L413 NwaCegarLoop]: 4447 mSDtfsCounter, 5561 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3845 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5581 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-18 22:34:17,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5581 Valid, 21910 Invalid, 3910 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3845 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-18 22:34:17,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10244 states. [2023-12-18 22:34:18,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10244 to 8137. [2023-12-18 22:34:18,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8137 states, 7638 states have (on average 1.6750458235140089) internal successors, (12794), 7656 states have internal predecessors, (12794), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-18 22:34:18,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8137 states to 8137 states and 13649 transitions. [2023-12-18 22:34:18,374 INFO L78 Accepts]: Start accepts. Automaton has 8137 states and 13649 transitions. Word has length 171 [2023-12-18 22:34:18,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:34:18,375 INFO L495 AbstractCegarLoop]: Abstraction has 8137 states and 13649 transitions. [2023-12-18 22:34:18,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:18,375 INFO L276 IsEmpty]: Start isEmpty. Operand 8137 states and 13649 transitions. [2023-12-18 22:34:18,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:34:18,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:34:18,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:34:18,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-18 22:34:18,382 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:34:18,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:34:18,382 INFO L85 PathProgramCache]: Analyzing trace with hash -843412019, now seen corresponding path program 1 times [2023-12-18 22:34:18,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:34:18,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135819100] [2023-12-18 22:34:18,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:34:18,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:34:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:18,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:34:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:18,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:34:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:18,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:34:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:18,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:34:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:18,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:18,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:18,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135819100] [2023-12-18 22:34:18,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135819100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:18,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:18,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:18,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686579118] [2023-12-18 22:34:18,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:18,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:18,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:18,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:18,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:18,660 INFO L87 Difference]: Start difference. First operand 8137 states and 13649 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:20,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:34:20,534 INFO L93 Difference]: Finished difference Result 16315 states and 27158 transitions. [2023-12-18 22:34:20,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:34:20,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:34:20,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:34:20,572 INFO L225 Difference]: With dead ends: 16315 [2023-12-18 22:34:20,573 INFO L226 Difference]: Without dead ends: 10318 [2023-12-18 22:34:20,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:34:20,595 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5277 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5298 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-18 22:34:20,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5298 Valid, 16750 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-18 22:34:20,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10318 states. [2023-12-18 22:34:21,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10318 to 8137. [2023-12-18 22:34:21,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8137 states, 7638 states have (on average 1.6728201099764337) internal successors, (12777), 7656 states have internal predecessors, (12777), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-18 22:34:21,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8137 states to 8137 states and 13632 transitions. [2023-12-18 22:34:21,038 INFO L78 Accepts]: Start accepts. Automaton has 8137 states and 13632 transitions. Word has length 171 [2023-12-18 22:34:21,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:34:21,039 INFO L495 AbstractCegarLoop]: Abstraction has 8137 states and 13632 transitions. [2023-12-18 22:34:21,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:21,039 INFO L276 IsEmpty]: Start isEmpty. Operand 8137 states and 13632 transitions. [2023-12-18 22:34:21,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:34:21,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:34:21,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:34:21,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-18 22:34:21,047 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:34:21,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:34:21,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1315672075, now seen corresponding path program 1 times [2023-12-18 22:34:21,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:34:21,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832108002] [2023-12-18 22:34:21,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:34:21,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:34:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:21,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:21,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:34:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:21,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:34:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:21,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:34:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:21,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:34:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:21,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:21,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:21,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832108002] [2023-12-18 22:34:21,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832108002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:21,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:21,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:21,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138921631] [2023-12-18 22:34:21,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:21,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:21,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:21,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:21,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:21,299 INFO L87 Difference]: Start difference. First operand 8137 states and 13632 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:23,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:34:23,052 INFO L93 Difference]: Finished difference Result 16297 states and 27071 transitions. [2023-12-18 22:34:23,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:34:23,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:34:23,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:34:23,090 INFO L225 Difference]: With dead ends: 16297 [2023-12-18 22:34:23,090 INFO L226 Difference]: Without dead ends: 10300 [2023-12-18 22:34:23,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:34:23,112 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5275 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5296 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-18 22:34:23,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5296 Valid, 16750 Invalid, 1836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-18 22:34:23,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10300 states. [2023-12-18 22:34:23,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10300 to 8137. [2023-12-18 22:34:23,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8137 states, 7638 states have (on average 1.6705943964388583) internal successors, (12760), 7656 states have internal predecessors, (12760), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-18 22:34:23,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8137 states to 8137 states and 13615 transitions. [2023-12-18 22:34:23,421 INFO L78 Accepts]: Start accepts. Automaton has 8137 states and 13615 transitions. Word has length 171 [2023-12-18 22:34:23,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:34:23,421 INFO L495 AbstractCegarLoop]: Abstraction has 8137 states and 13615 transitions. [2023-12-18 22:34:23,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:23,421 INFO L276 IsEmpty]: Start isEmpty. Operand 8137 states and 13615 transitions. [2023-12-18 22:34:23,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:34:23,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:34:23,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:34:23,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-18 22:34:23,428 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:34:23,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:34:23,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1385319949, now seen corresponding path program 1 times [2023-12-18 22:34:23,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:34:23,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406986157] [2023-12-18 22:34:23,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:34:23,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:34:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:23,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:23,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:34:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:23,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:34:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:23,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:34:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:23,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:34:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:23,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:23,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:23,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406986157] [2023-12-18 22:34:23,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406986157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:23,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:23,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:23,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556413692] [2023-12-18 22:34:23,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:23,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:23,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:23,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:23,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:23,697 INFO L87 Difference]: Start difference. First operand 8137 states and 13615 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:27,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:34:27,872 INFO L93 Difference]: Finished difference Result 23625 states and 38879 transitions. [2023-12-18 22:34:27,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:34:27,873 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:34:27,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:34:27,934 INFO L225 Difference]: With dead ends: 23625 [2023-12-18 22:34:27,934 INFO L226 Difference]: Without dead ends: 17628 [2023-12-18 22:34:27,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:34:27,961 INFO L413 NwaCegarLoop]: 4447 mSDtfsCounter, 5542 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3768 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-18 22:34:27,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5562 Valid, 21910 Invalid, 3833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3768 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-18 22:34:27,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17628 states. [2023-12-18 22:34:28,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17628 to 13837. [2023-12-18 22:34:28,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13837 states, 12874 states have (on average 1.6367873232872456) internal successors, (21072), 12908 states have internal predecessors, (21072), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2023-12-18 22:34:28,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13837 states to 13837 states and 22809 transitions. [2023-12-18 22:34:28,626 INFO L78 Accepts]: Start accepts. Automaton has 13837 states and 22809 transitions. Word has length 171 [2023-12-18 22:34:28,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:34:28,626 INFO L495 AbstractCegarLoop]: Abstraction has 13837 states and 22809 transitions. [2023-12-18 22:34:28,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:28,626 INFO L276 IsEmpty]: Start isEmpty. Operand 13837 states and 22809 transitions. [2023-12-18 22:34:28,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:34:28,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:34:28,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:34:28,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-18 22:34:28,635 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:34:28,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:34:28,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1803208651, now seen corresponding path program 1 times [2023-12-18 22:34:28,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:34:28,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767965550] [2023-12-18 22:34:28,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:34:28,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:34:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:28,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:28,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:34:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:28,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:34:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:28,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:34:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:28,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:34:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:28,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:28,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:28,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767965550] [2023-12-18 22:34:28,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767965550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:28,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:28,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:28,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306967889] [2023-12-18 22:34:28,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:28,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:28,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:28,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:28,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:28,914 INFO L87 Difference]: Start difference. First operand 13837 states and 22809 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:33,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:34:33,221 INFO L93 Difference]: Finished difference Result 49515 states and 81069 transitions. [2023-12-18 22:34:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:34:33,222 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:34:33,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:34:33,559 INFO L225 Difference]: With dead ends: 49515 [2023-12-18 22:34:33,559 INFO L226 Difference]: Without dead ends: 37818 [2023-12-18 22:34:33,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:34:33,597 INFO L413 NwaCegarLoop]: 4249 mSDtfsCounter, 6106 mSDsluCounter, 16918 mSDsCounter, 0 mSdLazyCounter, 3161 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6140 SdHoareTripleChecker+Valid, 21167 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-18 22:34:33,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6140 Valid, 21167 Invalid, 3267 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [106 Valid, 3161 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-18 22:34:33,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37818 states. [2023-12-18 22:34:34,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37818 to 25198. [2023-12-18 22:34:34,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25198 states, 23339 states have (on average 1.6152362997557737) internal successors, (37698), 23405 states have internal predecessors, (37698), 1403 states have call successors, (1403), 390 states have call predecessors, (1403), 454 states have return successors, (2196), 1466 states have call predecessors, (2196), 1403 states have call successors, (2196) [2023-12-18 22:34:34,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25198 states to 25198 states and 41297 transitions. [2023-12-18 22:34:34,774 INFO L78 Accepts]: Start accepts. Automaton has 25198 states and 41297 transitions. Word has length 171 [2023-12-18 22:34:34,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:34:34,774 INFO L495 AbstractCegarLoop]: Abstraction has 25198 states and 41297 transitions. [2023-12-18 22:34:34,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:34,775 INFO L276 IsEmpty]: Start isEmpty. Operand 25198 states and 41297 transitions. [2023-12-18 22:34:34,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:34:34,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:34:34,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:34:34,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-18 22:34:34,789 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:34:34,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:34:34,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1092805043, now seen corresponding path program 1 times [2023-12-18 22:34:34,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:34:34,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66512840] [2023-12-18 22:34:34,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:34:34,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:34:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:34,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:34,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:34:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:35,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:34:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:35,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:34:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:35,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:34:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:35,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:35,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:35,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66512840] [2023-12-18 22:34:35,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66512840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:35,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:35,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:35,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012368265] [2023-12-18 22:34:35,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:35,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:35,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:35,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:35,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:35,063 INFO L87 Difference]: Start difference. First operand 25198 states and 41297 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:40,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:34:40,983 INFO L93 Difference]: Finished difference Result 95018 states and 155923 transitions. [2023-12-18 22:34:40,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:34:40,983 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:34:40,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:34:41,204 INFO L225 Difference]: With dead ends: 95018 [2023-12-18 22:34:41,204 INFO L226 Difference]: Without dead ends: 71960 [2023-12-18 22:34:41,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:34:41,302 INFO L413 NwaCegarLoop]: 4444 mSDtfsCounter, 5649 mSDsluCounter, 17455 mSDsCounter, 0 mSdLazyCounter, 4464 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5668 SdHoareTripleChecker+Valid, 21899 SdHoareTripleChecker+Invalid, 4531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-18 22:34:41,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5668 Valid, 21899 Invalid, 4531 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 4464 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-18 22:34:41,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71960 states. [2023-12-18 22:34:43,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71960 to 47599. [2023-12-18 22:34:43,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47599 states, 43980 states have (on average 1.6030013642564802) internal successors, (70500), 44110 states have internal predecessors, (70500), 2715 states have call successors, (2715), 774 states have call predecessors, (2715), 902 states have return successors, (5030), 2842 states have call predecessors, (5030), 2715 states have call successors, (5030) [2023-12-18 22:34:44,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47599 states to 47599 states and 78245 transitions. [2023-12-18 22:34:44,063 INFO L78 Accepts]: Start accepts. Automaton has 47599 states and 78245 transitions. Word has length 171 [2023-12-18 22:34:44,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:34:44,063 INFO L495 AbstractCegarLoop]: Abstraction has 47599 states and 78245 transitions. [2023-12-18 22:34:44,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:44,064 INFO L276 IsEmpty]: Start isEmpty. Operand 47599 states and 78245 transitions. [2023-12-18 22:34:44,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:34:44,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:34:44,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:34:44,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-18 22:34:44,089 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:34:44,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:34:44,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1584721803, now seen corresponding path program 1 times [2023-12-18 22:34:44,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:34:44,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985929212] [2023-12-18 22:34:44,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:34:44,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:34:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:44,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:44,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:34:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:44,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:34:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:44,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:34:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:44,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:34:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:44,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:44,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:44,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985929212] [2023-12-18 22:34:44,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985929212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:44,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:44,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:44,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095884433] [2023-12-18 22:34:44,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:44,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:44,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:44,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:44,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:44,372 INFO L87 Difference]: Start difference. First operand 47599 states and 78245 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:51,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:34:51,088 INFO L93 Difference]: Finished difference Result 184169 states and 304377 transitions. [2023-12-18 22:34:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:34:51,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:34:51,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:34:51,505 INFO L225 Difference]: With dead ends: 184169 [2023-12-18 22:34:51,505 INFO L226 Difference]: Without dead ends: 138710 [2023-12-18 22:34:51,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:34:51,832 INFO L413 NwaCegarLoop]: 4445 mSDtfsCounter, 5938 mSDsluCounter, 17458 mSDsCounter, 0 mSdLazyCounter, 3719 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5972 SdHoareTripleChecker+Valid, 21903 SdHoareTripleChecker+Invalid, 3787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:34:51,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5972 Valid, 21903 Invalid, 3787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3719 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-18 22:34:51,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138710 states. [2023-12-18 22:34:55,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138710 to 92720. [2023-12-18 22:34:55,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92720 states, 85645 states have (on average 1.5966139295930877) internal successors, (136742), 85903 states have internal predecessors, (136742), 5275 states have call successors, (5275), 1542 states have call predecessors, (5275), 1798 states have return successors, (12092), 5530 states have call predecessors, (12092), 5275 states have call successors, (12092) [2023-12-18 22:34:56,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92720 states to 92720 states and 154109 transitions. [2023-12-18 22:34:56,148 INFO L78 Accepts]: Start accepts. Automaton has 92720 states and 154109 transitions. Word has length 171 [2023-12-18 22:34:56,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:34:56,149 INFO L495 AbstractCegarLoop]: Abstraction has 92720 states and 154109 transitions. [2023-12-18 22:34:56,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:34:56,149 INFO L276 IsEmpty]: Start isEmpty. Operand 92720 states and 154109 transitions. [2023-12-18 22:34:56,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:34:56,410 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:34:56,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:34:56,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-18 22:34:56,411 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:34:56,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:34:56,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1948188301, now seen corresponding path program 1 times [2023-12-18 22:34:56,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:34:56,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601627297] [2023-12-18 22:34:56,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:34:56,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:34:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:56,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:56,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:34:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:56,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:34:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:56,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:34:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:56,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:34:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:56,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:56,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:56,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601627297] [2023-12-18 22:34:56,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601627297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:56,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:56,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:56,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18960024] [2023-12-18 22:34:56,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:56,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:56,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:56,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:56,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:56,672 INFO L87 Difference]: Start difference. First operand 92720 states and 154109 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:35:07,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:35:07,103 INFO L93 Difference]: Finished difference Result 361384 states and 605199 transitions. [2023-12-18 22:35:07,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:35:07,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:35:07,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:35:08,309 INFO L225 Difference]: With dead ends: 361384 [2023-12-18 22:35:08,309 INFO L226 Difference]: Without dead ends: 270804 [2023-12-18 22:35:08,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:35:08,538 INFO L413 NwaCegarLoop]: 4445 mSDtfsCounter, 5908 mSDsluCounter, 17458 mSDsCounter, 0 mSdLazyCounter, 3701 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5942 SdHoareTripleChecker+Valid, 21903 SdHoareTripleChecker+Invalid, 3769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-18 22:35:08,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5942 Valid, 21903 Invalid, 3769 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3701 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-18 22:35:08,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270804 states. [2023-12-18 22:35:16,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270804 to 182961. [2023-12-18 22:35:16,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182961 states, 169102 states have (on average 1.5935943986469705) internal successors, (269480), 169616 states have internal predecessors, (269480), 10267 states have call successors, (10267), 3078 states have call predecessors, (10267), 3590 states have return successors, (30462), 10778 states have call predecessors, (30462), 10267 states have call successors, (30462) [2023-12-18 22:35:17,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182961 states to 182961 states and 310209 transitions. [2023-12-18 22:35:17,416 INFO L78 Accepts]: Start accepts. Automaton has 182961 states and 310209 transitions. Word has length 171 [2023-12-18 22:35:17,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:35:17,416 INFO L495 AbstractCegarLoop]: Abstraction has 182961 states and 310209 transitions. [2023-12-18 22:35:17,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:35:17,416 INFO L276 IsEmpty]: Start isEmpty. Operand 182961 states and 310209 transitions. [2023-12-18 22:35:17,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:35:17,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:35:17,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:35:17,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-18 22:35:17,500 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:35:17,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:35:17,501 INFO L85 PathProgramCache]: Analyzing trace with hash -2057959605, now seen corresponding path program 1 times [2023-12-18 22:35:17,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:35:17,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868638321] [2023-12-18 22:35:17,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:35:17,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:35:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:17,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:35:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:17,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:35:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:17,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:35:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:17,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:35:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:17,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:35:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:17,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:35:17,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:35:17,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868638321] [2023-12-18 22:35:17,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868638321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:35:17,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:35:17,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:35:17,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14331200] [2023-12-18 22:35:17,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:35:17,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:35:17,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:35:17,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:35:17,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:35:17,769 INFO L87 Difference]: Start difference. First operand 182961 states and 310209 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:35:34,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:35:34,304 INFO L93 Difference]: Finished difference Result 705317 states and 1207441 transitions. [2023-12-18 22:35:34,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:35:34,304 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:35:34,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:35:36,895 INFO L225 Difference]: With dead ends: 705317 [2023-12-18 22:35:36,896 INFO L226 Difference]: Without dead ends: 524496 [2023-12-18 22:35:37,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:35:37,543 INFO L413 NwaCegarLoop]: 4445 mSDtfsCounter, 5833 mSDsluCounter, 17458 mSDsCounter, 0 mSdLazyCounter, 3674 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5867 SdHoareTripleChecker+Valid, 21903 SdHoareTripleChecker+Invalid, 3742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-18 22:35:37,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5867 Valid, 21903 Invalid, 3742 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3674 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-18 22:35:37,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524496 states. [2023-12-18 22:35:53,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524496 to 363955. [2023-12-18 22:35:53,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363955 states, 336784 states have (on average 1.5929854149840847) internal successors, (536492), 337810 states have internal predecessors, (536492), 19995 states have call successors, (19995), 6150 states have call predecessors, (19995), 7174 states have return successors, (80068), 21018 states have call predecessors, (80068), 19995 states have call successors, (80068) [2023-12-18 22:35:56,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363955 states to 363955 states and 636555 transitions. [2023-12-18 22:35:56,621 INFO L78 Accepts]: Start accepts. Automaton has 363955 states and 636555 transitions. Word has length 171 [2023-12-18 22:35:56,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:35:56,621 INFO L495 AbstractCegarLoop]: Abstraction has 363955 states and 636555 transitions. [2023-12-18 22:35:56,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:35:56,622 INFO L276 IsEmpty]: Start isEmpty. Operand 363955 states and 636555 transitions. [2023-12-18 22:35:56,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-18 22:35:56,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:35:56,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:35:56,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-18 22:35:56,921 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:35:56,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:35:56,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1382799479, now seen corresponding path program 1 times [2023-12-18 22:35:56,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:35:56,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934996551] [2023-12-18 22:35:56,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:35:56,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:35:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:57,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:35:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:57,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-18 22:35:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:57,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-18 22:35:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:57,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-18 22:35:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:57,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-18 22:35:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:57,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:35:57,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:35:57,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934996551] [2023-12-18 22:35:57,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934996551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:35:57,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:35:57,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:35:57,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136268498] [2023-12-18 22:35:57,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:35:57,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:35:57,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:35:57,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:35:57,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:35:57,341 INFO L87 Difference]: Start difference. First operand 363955 states and 636555 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2023-12-18 22:36:29,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:36:29,970 INFO L93 Difference]: Finished difference Result 1384485 states and 2452137 transitions. [2023-12-18 22:36:29,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:36:29,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2023-12-18 22:36:29,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:36:36,324 INFO L225 Difference]: With dead ends: 1384485 [2023-12-18 22:36:36,324 INFO L226 Difference]: Without dead ends: 1022670 [2023-12-18 22:36:37,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:36:37,989 INFO L413 NwaCegarLoop]: 4445 mSDtfsCounter, 5603 mSDsluCounter, 17458 mSDsCounter, 0 mSdLazyCounter, 4158 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5622 SdHoareTripleChecker+Valid, 21903 SdHoareTripleChecker+Invalid, 4225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-18 22:36:37,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5622 Valid, 21903 Invalid, 4225 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 4158 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-18 22:36:38,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022670 states.