/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/systemc/token_ring.08.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 23:07:14,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 23:07:15,028 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 23:07:15,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 23:07:15,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 23:07:15,045 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 23:07:15,046 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 23:07:15,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 23:07:15,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 23:07:15,046 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 23:07:15,047 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 23:07:15,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 23:07:15,047 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 23:07:15,048 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 23:07:15,048 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 23:07:15,048 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 23:07:15,048 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 23:07:15,049 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 23:07:15,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 23:07:15,049 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 23:07:15,049 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 23:07:15,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 23:07:15,050 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 23:07:15,050 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 23:07:15,050 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 23:07:15,051 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 23:07:15,051 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 23:07:15,051 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 23:07:15,051 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 23:07:15,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 23:07:15,052 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 23:07:15,052 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 23:07:15,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:07:15,052 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 23:07:15,053 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 23:07:15,053 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 23:07:15,053 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 23:07:15,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 23:07:15,054 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 23:07:15,054 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 23:07:15,054 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 23:07:15,054 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 23:07:15,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 23:07:15,055 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 23:07:15,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 23:07:15,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 23:07:15,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 23:07:15,219 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 23:07:15,219 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 23:07:15,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.08.cil-1.c [2023-12-15 23:07:16,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 23:07:16,419 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 23:07:16,420 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.08.cil-1.c [2023-12-15 23:07:16,433 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9a6f0cea/1dafc04aeb1744818ff572861dd7d8de/FLAG13b22317f [2023-12-15 23:07:16,448 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9a6f0cea/1dafc04aeb1744818ff572861dd7d8de [2023-12-15 23:07:16,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 23:07:16,451 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 23:07:16,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 23:07:16,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 23:07:16,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 23:07:16,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:07:16" (1/1) ... [2023-12-15 23:07:16,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e145ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16, skipping insertion in model container [2023-12-15 23:07:16,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:07:16" (1/1) ... [2023-12-15 23:07:16,510 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 23:07:16,672 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.08.cil-1.c[671,684] [2023-12-15 23:07:16,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:07:16,781 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 23:07:16,789 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.08.cil-1.c[671,684] [2023-12-15 23:07:16,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:07:16,836 INFO L206 MainTranslator]: Completed translation [2023-12-15 23:07:16,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16 WrapperNode [2023-12-15 23:07:16,836 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 23:07:16,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 23:07:16,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 23:07:16,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 23:07:16,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16" (1/1) ... [2023-12-15 23:07:16,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16" (1/1) ... [2023-12-15 23:07:16,888 INFO L138 Inliner]: procedures = 44, calls = 55, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 639 [2023-12-15 23:07:16,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 23:07:16,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 23:07:16,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 23:07:16,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 23:07:16,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16" (1/1) ... [2023-12-15 23:07:16,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16" (1/1) ... [2023-12-15 23:07:16,904 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16" (1/1) ... [2023-12-15 23:07:16,916 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 23:07:16,917 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16" (1/1) ... [2023-12-15 23:07:16,917 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16" (1/1) ... [2023-12-15 23:07:16,928 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16" (1/1) ... [2023-12-15 23:07:16,937 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16" (1/1) ... [2023-12-15 23:07:16,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16" (1/1) ... [2023-12-15 23:07:16,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16" (1/1) ... [2023-12-15 23:07:16,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 23:07:16,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 23:07:16,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 23:07:16,954 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 23:07:16,968 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16" (1/1) ... [2023-12-15 23:07:16,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:07:16,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:07:17,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 23:07:17,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 23:07:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 23:07:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 23:07:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 23:07:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 23:07:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 23:07:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-15 23:07:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-15 23:07:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 23:07:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 23:07:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 23:07:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 23:07:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 23:07:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 23:07:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 23:07:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 23:07:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 23:07:17,146 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 23:07:17,148 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 23:07:17,574 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 23:07:17,606 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 23:07:17,606 INFO L309 CfgBuilder]: Removed 11 assume(true) statements. [2023-12-15 23:07:17,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:07:17 BoogieIcfgContainer [2023-12-15 23:07:17,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 23:07:17,608 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 23:07:17,608 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 23:07:17,610 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 23:07:17,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:07:16" (1/3) ... [2023-12-15 23:07:17,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55bb7248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:07:17, skipping insertion in model container [2023-12-15 23:07:17,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:07:16" (2/3) ... [2023-12-15 23:07:17,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55bb7248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:07:17, skipping insertion in model container [2023-12-15 23:07:17,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:07:17" (3/3) ... [2023-12-15 23:07:17,612 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.08.cil-1.c [2023-12-15 23:07:17,623 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 23:07:17,624 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 23:07:17,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 23:07:17,664 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;@586c506a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 23:07:17,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 23:07:17,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 256 states, 226 states have (on average 1.7212389380530972) internal successors, (389), 228 states have internal predecessors, (389), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-15 23:07:17,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:17,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:17,683 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] [2023-12-15 23:07:17,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:17,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:17,687 INFO L85 PathProgramCache]: Analyzing trace with hash -602286887, now seen corresponding path program 1 times [2023-12-15 23:07:17,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:17,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130077039] [2023-12-15 23:07:17,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:17,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:17,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:17,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:18,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:18,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:18,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:18,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:18,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130077039] [2023-12-15 23:07:18,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130077039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:18,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:18,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:07:18,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165620803] [2023-12-15 23:07:18,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:18,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:07:18,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:18,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:07:18,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:07:18,085 INFO L87 Difference]: Start difference. First operand has 256 states, 226 states have (on average 1.7212389380530972) internal successors, (389), 228 states have internal predecessors, (389), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:19,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:19,084 INFO L93 Difference]: Finished difference Result 594 states and 1013 transitions. [2023-12-15 23:07:19,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 23:07:19,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 3 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:19,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:19,101 INFO L225 Difference]: With dead ends: 594 [2023-12-15 23:07:19,101 INFO L226 Difference]: Without dead ends: 344 [2023-12-15 23:07:19,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:07:19,113 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 691 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:19,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 461 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 23:07:19,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-12-15 23:07:19,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 254. [2023-12-15 23:07:19,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 225 states have (on average 1.6133333333333333) internal successors, (363), 226 states have internal predecessors, (363), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-15 23:07:19,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 407 transitions. [2023-12-15 23:07:19,179 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 407 transitions. Word has length 120 [2023-12-15 23:07:19,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:19,180 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 407 transitions. [2023-12-15 23:07:19,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:19,180 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 407 transitions. [2023-12-15 23:07:19,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:19,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:19,186 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] [2023-12-15 23:07:19,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 23:07:19,187 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:19,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:19,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1045076055, now seen corresponding path program 1 times [2023-12-15 23:07:19,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:19,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916467636] [2023-12-15 23:07:19,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:19,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:19,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:19,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:19,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:19,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:19,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:19,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:19,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:19,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916467636] [2023-12-15 23:07:19,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916467636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:19,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:19,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:07:19,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357308109] [2023-12-15 23:07:19,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:19,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:07:19,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:19,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:07:19,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:07:19,429 INFO L87 Difference]: Start difference. First operand 254 states and 407 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:21,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:21,055 INFO L93 Difference]: Finished difference Result 925 states and 1517 transitions. [2023-12-15 23:07:21,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 23:07:21,055 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 4 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:21,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:21,058 INFO L225 Difference]: With dead ends: 925 [2023-12-15 23:07:21,058 INFO L226 Difference]: Without dead ends: 685 [2023-12-15 23:07:21,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:07:21,060 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1041 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:21,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 877 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1652 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 23:07:21,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2023-12-15 23:07:21,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 506. [2023-12-15 23:07:21,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 453 states have (on average 1.6225165562913908) internal successors, (735), 455 states have internal predecessors, (735), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2023-12-15 23:07:21,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 816 transitions. [2023-12-15 23:07:21,083 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 816 transitions. Word has length 120 [2023-12-15 23:07:21,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:21,083 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 816 transitions. [2023-12-15 23:07:21,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:21,083 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 816 transitions. [2023-12-15 23:07:21,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:21,084 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:21,085 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] [2023-12-15 23:07:21,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 23:07:21,085 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:21,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:21,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1590364567, now seen corresponding path program 1 times [2023-12-15 23:07:21,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:21,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082016913] [2023-12-15 23:07:21,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:21,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:21,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:21,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:21,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:21,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:21,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:21,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:21,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:21,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082016913] [2023-12-15 23:07:21,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082016913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:21,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:21,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:21,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848677897] [2023-12-15 23:07:21,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:21,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:21,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:21,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:21,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:21,395 INFO L87 Difference]: Start difference. First operand 506 states and 816 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:23,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:23,599 INFO L93 Difference]: Finished difference Result 1530 states and 2507 transitions. [2023-12-15 23:07:23,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:07:23,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:23,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:23,605 INFO L225 Difference]: With dead ends: 1530 [2023-12-15 23:07:23,605 INFO L226 Difference]: Without dead ends: 1038 [2023-12-15 23:07:23,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 23:07:23,610 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 1062 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 2633 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:23,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 1456 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2633 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-15 23:07:23,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2023-12-15 23:07:23,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 739. [2023-12-15 23:07:23,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 662 states have (on average 1.6148036253776434) internal successors, (1069), 665 states have internal predecessors, (1069), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2023-12-15 23:07:23,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1186 transitions. [2023-12-15 23:07:23,676 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1186 transitions. Word has length 120 [2023-12-15 23:07:23,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:23,677 INFO L495 AbstractCegarLoop]: Abstraction has 739 states and 1186 transitions. [2023-12-15 23:07:23,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:23,677 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1186 transitions. [2023-12-15 23:07:23,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:23,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:23,678 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] [2023-12-15 23:07:23,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 23:07:23,679 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:23,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:23,680 INFO L85 PathProgramCache]: Analyzing trace with hash -443029479, now seen corresponding path program 1 times [2023-12-15 23:07:23,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:23,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75165985] [2023-12-15 23:07:23,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:23,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:23,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:23,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:23,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:23,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:23,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:23,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:23,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:23,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75165985] [2023-12-15 23:07:23,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75165985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:23,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:23,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:23,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255401034] [2023-12-15 23:07:23,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:23,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:23,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:23,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:23,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:23,853 INFO L87 Difference]: Start difference. First operand 739 states and 1186 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:25,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:25,619 INFO L93 Difference]: Finished difference Result 2416 states and 3949 transitions. [2023-12-15 23:07:25,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:07:25,620 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:25,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:25,625 INFO L225 Difference]: With dead ends: 2416 [2023-12-15 23:07:25,626 INFO L226 Difference]: Without dead ends: 1691 [2023-12-15 23:07:25,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 23:07:25,628 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1140 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:25,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 956 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2183 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 23:07:25,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2023-12-15 23:07:25,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1206. [2023-12-15 23:07:25,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1081 states have (on average 1.6077705827937094) internal successors, (1738), 1086 states have internal predecessors, (1738), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2023-12-15 23:07:25,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1931 transitions. [2023-12-15 23:07:25,696 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1931 transitions. Word has length 120 [2023-12-15 23:07:25,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:25,696 INFO L495 AbstractCegarLoop]: Abstraction has 1206 states and 1931 transitions. [2023-12-15 23:07:25,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:25,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1931 transitions. [2023-12-15 23:07:25,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:25,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:25,699 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] [2023-12-15 23:07:25,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 23:07:25,700 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:25,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:25,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1985229143, now seen corresponding path program 1 times [2023-12-15 23:07:25,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:25,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356841996] [2023-12-15 23:07:25,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:25,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:25,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:25,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:25,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:25,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:25,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:25,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:25,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356841996] [2023-12-15 23:07:25,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356841996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:25,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:25,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:25,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174509999] [2023-12-15 23:07:25,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:25,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:25,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:25,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:25,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:25,873 INFO L87 Difference]: Start difference. First operand 1206 states and 1931 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:26,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:26,822 INFO L93 Difference]: Finished difference Result 2873 states and 4687 transitions. [2023-12-15 23:07:26,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:07:26,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:26,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:26,836 INFO L225 Difference]: With dead ends: 2873 [2023-12-15 23:07:26,836 INFO L226 Difference]: Without dead ends: 1681 [2023-12-15 23:07:26,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:07:26,842 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 874 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:26,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 625 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 23:07:26,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2023-12-15 23:07:26,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1206. [2023-12-15 23:07:26,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1081 states have (on average 1.6031452358926919) internal successors, (1733), 1086 states have internal predecessors, (1733), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2023-12-15 23:07:26,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1926 transitions. [2023-12-15 23:07:26,919 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1926 transitions. Word has length 120 [2023-12-15 23:07:26,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:26,919 INFO L495 AbstractCegarLoop]: Abstraction has 1206 states and 1926 transitions. [2023-12-15 23:07:26,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:26,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1926 transitions. [2023-12-15 23:07:26,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:26,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:26,921 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] [2023-12-15 23:07:26,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 23:07:26,921 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:26,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:26,921 INFO L85 PathProgramCache]: Analyzing trace with hash 678086745, now seen corresponding path program 1 times [2023-12-15 23:07:26,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:26,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751447020] [2023-12-15 23:07:26,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:26,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:26,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:27,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:27,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:27,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:27,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:27,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:27,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:27,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751447020] [2023-12-15 23:07:27,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751447020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:27,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:27,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:27,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135341818] [2023-12-15 23:07:27,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:27,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:27,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:27,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:27,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:27,068 INFO L87 Difference]: Start difference. First operand 1206 states and 1926 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:28,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:28,087 INFO L93 Difference]: Finished difference Result 2867 states and 4661 transitions. [2023-12-15 23:07:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:07:28,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:28,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:28,093 INFO L225 Difference]: With dead ends: 2867 [2023-12-15 23:07:28,093 INFO L226 Difference]: Without dead ends: 1675 [2023-12-15 23:07:28,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:07:28,096 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 764 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:28,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 744 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 23:07:28,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2023-12-15 23:07:28,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1206. [2023-12-15 23:07:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1081 states have (on average 1.5985198889916743) internal successors, (1728), 1086 states have internal predecessors, (1728), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2023-12-15 23:07:28,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1921 transitions. [2023-12-15 23:07:28,136 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1921 transitions. Word has length 120 [2023-12-15 23:07:28,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:28,136 INFO L495 AbstractCegarLoop]: Abstraction has 1206 states and 1921 transitions. [2023-12-15 23:07:28,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:28,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1921 transitions. [2023-12-15 23:07:28,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:28,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:28,138 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] [2023-12-15 23:07:28,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 23:07:28,138 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:28,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:28,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1719383785, now seen corresponding path program 1 times [2023-12-15 23:07:28,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:28,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631202126] [2023-12-15 23:07:28,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:28,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:28,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:28,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:28,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:28,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:28,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:28,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:28,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:28,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631202126] [2023-12-15 23:07:28,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631202126] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:28,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:28,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:28,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362370570] [2023-12-15 23:07:28,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:28,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:28,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:28,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:28,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:28,262 INFO L87 Difference]: Start difference. First operand 1206 states and 1921 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:29,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:29,348 INFO L93 Difference]: Finished difference Result 2860 states and 4633 transitions. [2023-12-15 23:07:29,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:07:29,348 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:29,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:29,354 INFO L225 Difference]: With dead ends: 2860 [2023-12-15 23:07:29,354 INFO L226 Difference]: Without dead ends: 1668 [2023-12-15 23:07:29,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:07:29,357 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 762 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:29,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 744 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 23:07:29,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2023-12-15 23:07:29,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1206. [2023-12-15 23:07:29,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1081 states have (on average 1.5938945420906567) internal successors, (1723), 1086 states have internal predecessors, (1723), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2023-12-15 23:07:29,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1916 transitions. [2023-12-15 23:07:29,405 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1916 transitions. Word has length 120 [2023-12-15 23:07:29,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:29,407 INFO L495 AbstractCegarLoop]: Abstraction has 1206 states and 1916 transitions. [2023-12-15 23:07:29,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:29,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1916 transitions. [2023-12-15 23:07:29,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:29,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:29,408 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] [2023-12-15 23:07:29,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 23:07:29,408 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:29,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:29,409 INFO L85 PathProgramCache]: Analyzing trace with hash -688342887, now seen corresponding path program 1 times [2023-12-15 23:07:29,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:29,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747635690] [2023-12-15 23:07:29,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:29,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:29,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:29,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:29,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:29,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:29,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:29,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:29,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747635690] [2023-12-15 23:07:29,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747635690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:29,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:29,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:29,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908163838] [2023-12-15 23:07:29,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:29,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:29,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:29,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:29,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:29,587 INFO L87 Difference]: Start difference. First operand 1206 states and 1916 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:31,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:31,758 INFO L93 Difference]: Finished difference Result 4092 states and 6590 transitions. [2023-12-15 23:07:31,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:07:31,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:31,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:31,768 INFO L225 Difference]: With dead ends: 4092 [2023-12-15 23:07:31,768 INFO L226 Difference]: Without dead ends: 2900 [2023-12-15 23:07:31,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 23:07:31,772 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1036 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 2550 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 2605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:31,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 1454 Invalid, 2605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2550 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 23:07:31,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2023-12-15 23:07:31,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 2153. [2023-12-15 23:07:31,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2153 states, 1932 states have (on average 1.5859213250517599) internal successors, (3064), 1941 states have internal predecessors, (3064), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2023-12-15 23:07:31,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 3415 transitions. [2023-12-15 23:07:31,853 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 3415 transitions. Word has length 120 [2023-12-15 23:07:31,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:31,853 INFO L495 AbstractCegarLoop]: Abstraction has 2153 states and 3415 transitions. [2023-12-15 23:07:31,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 3415 transitions. [2023-12-15 23:07:31,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:31,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:31,855 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] [2023-12-15 23:07:31,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 23:07:31,855 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:31,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:31,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1700221143, now seen corresponding path program 1 times [2023-12-15 23:07:31,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:31,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270248871] [2023-12-15 23:07:31,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:31,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:31,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:31,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:31,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:31,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:31,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:32,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:32,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:32,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270248871] [2023-12-15 23:07:32,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270248871] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:32,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:32,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:32,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173881816] [2023-12-15 23:07:32,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:32,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:32,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:32,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:32,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:32,018 INFO L87 Difference]: Start difference. First operand 2153 states and 3415 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:34,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:34,136 INFO L93 Difference]: Finished difference Result 7477 states and 12027 transitions. [2023-12-15 23:07:34,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:07:34,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:34,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:34,152 INFO L225 Difference]: With dead ends: 7477 [2023-12-15 23:07:34,152 INFO L226 Difference]: Without dead ends: 5338 [2023-12-15 23:07:34,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 23:07:34,156 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1032 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 2522 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 2577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:34,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 1454 Invalid, 2577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2522 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 23:07:34,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5338 states. [2023-12-15 23:07:34,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5338 to 4056. [2023-12-15 23:07:34,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4056 states, 3643 states have (on average 1.5811144660993686) internal successors, (5760), 3660 states have internal predecessors, (5760), 294 states have call successors, (294), 102 states have call predecessors, (294), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2023-12-15 23:07:34,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4056 states to 4056 states and 6445 transitions. [2023-12-15 23:07:34,290 INFO L78 Accepts]: Start accepts. Automaton has 4056 states and 6445 transitions. Word has length 120 [2023-12-15 23:07:34,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:34,291 INFO L495 AbstractCegarLoop]: Abstraction has 4056 states and 6445 transitions. [2023-12-15 23:07:34,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:34,291 INFO L276 IsEmpty]: Start isEmpty. Operand 4056 states and 6445 transitions. [2023-12-15 23:07:34,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:34,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:34,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:07:34,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 23:07:34,294 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:34,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:34,294 INFO L85 PathProgramCache]: Analyzing trace with hash 643489941, now seen corresponding path program 1 times [2023-12-15 23:07:34,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:34,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137679623] [2023-12-15 23:07:34,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:34,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:34,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:34,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:34,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:34,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:34,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:34,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:34,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:34,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137679623] [2023-12-15 23:07:34,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137679623] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:34,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:34,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:34,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337142751] [2023-12-15 23:07:34,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:34,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:34,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:34,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:34,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:34,429 INFO L87 Difference]: Start difference. First operand 4056 states and 6445 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:36,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:36,991 INFO L93 Difference]: Finished difference Result 15924 states and 25657 transitions. [2023-12-15 23:07:36,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:07:36,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:36,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:37,043 INFO L225 Difference]: With dead ends: 15924 [2023-12-15 23:07:37,043 INFO L226 Difference]: Without dead ends: 11882 [2023-12-15 23:07:37,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:07:37,058 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 1325 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 2499 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 2557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:37,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 1447 Invalid, 2557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2499 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-15 23:07:37,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11882 states. [2023-12-15 23:07:37,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11882 to 7843. [2023-12-15 23:07:37,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7843 states, 7062 states have (on average 1.5794392523364487) internal successors, (11154), 7095 states have internal predecessors, (11154), 550 states have call successors, (550), 198 states have call predecessors, (550), 230 states have return successors, (825), 581 states have call predecessors, (825), 550 states have call successors, (825) [2023-12-15 23:07:37,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7843 states to 7843 states and 12529 transitions. [2023-12-15 23:07:37,426 INFO L78 Accepts]: Start accepts. Automaton has 7843 states and 12529 transitions. Word has length 120 [2023-12-15 23:07:37,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:37,427 INFO L495 AbstractCegarLoop]: Abstraction has 7843 states and 12529 transitions. [2023-12-15 23:07:37,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:37,427 INFO L276 IsEmpty]: Start isEmpty. Operand 7843 states and 12529 transitions. [2023-12-15 23:07:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:37,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:37,432 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] [2023-12-15 23:07:37,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 23:07:37,432 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:37,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:37,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1994875159, now seen corresponding path program 1 times [2023-12-15 23:07:37,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:37,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885246449] [2023-12-15 23:07:37,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:37,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:37,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:37,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:37,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:37,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:37,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:37,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:37,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885246449] [2023-12-15 23:07:37,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885246449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:37,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:37,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:37,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688565706] [2023-12-15 23:07:37,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:37,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:37,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:37,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:37,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:37,575 INFO L87 Difference]: Start difference. First operand 7843 states and 12529 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:40,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:40,193 INFO L93 Difference]: Finished difference Result 30705 states and 49711 transitions. [2023-12-15 23:07:40,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:07:40,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:40,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:40,267 INFO L225 Difference]: With dead ends: 30705 [2023-12-15 23:07:40,268 INFO L226 Difference]: Without dead ends: 22876 [2023-12-15 23:07:40,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:07:40,295 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1163 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:40,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 1004 Invalid, 2710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2631 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 23:07:40,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22876 states. [2023-12-15 23:07:40,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22876 to 15256. [2023-12-15 23:07:41,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15256 states, 13755 states have (on average 1.5787713558705925) internal successors, (21716), 13820 states have internal predecessors, (21716), 1046 states have call successors, (1046), 390 states have call predecessors, (1046), 454 states have return successors, (1839), 1109 states have call predecessors, (1839), 1046 states have call successors, (1839) [2023-12-15 23:07:41,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15256 states to 15256 states and 24601 transitions. [2023-12-15 23:07:41,052 INFO L78 Accepts]: Start accepts. Automaton has 15256 states and 24601 transitions. Word has length 120 [2023-12-15 23:07:41,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:41,052 INFO L495 AbstractCegarLoop]: Abstraction has 15256 states and 24601 transitions. [2023-12-15 23:07:41,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:41,052 INFO L276 IsEmpty]: Start isEmpty. Operand 15256 states and 24601 transitions. [2023-12-15 23:07:41,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:41,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:41,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:07:41,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 23:07:41,060 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:41,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:41,061 INFO L85 PathProgramCache]: Analyzing trace with hash 375900245, now seen corresponding path program 1 times [2023-12-15 23:07:41,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:41,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116115635] [2023-12-15 23:07:41,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:41,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:41,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:41,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:41,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:41,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:41,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:41,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:41,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:41,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116115635] [2023-12-15 23:07:41,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116115635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:41,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:41,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:41,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616779499] [2023-12-15 23:07:41,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:41,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:41,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:41,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:41,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:41,172 INFO L87 Difference]: Start difference. First operand 15256 states and 24601 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:42,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:42,546 INFO L93 Difference]: Finished difference Result 35111 states and 57627 transitions. [2023-12-15 23:07:42,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:07:42,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:42,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:42,612 INFO L225 Difference]: With dead ends: 35111 [2023-12-15 23:07:42,612 INFO L226 Difference]: Without dead ends: 19869 [2023-12-15 23:07:42,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:07:42,654 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 766 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:42,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 743 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 23:07:42,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19869 states. [2023-12-15 23:07:43,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19869 to 15256. [2023-12-15 23:07:43,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15256 states, 13755 states have (on average 1.5740458015267176) internal successors, (21651), 13820 states have internal predecessors, (21651), 1046 states have call successors, (1046), 390 states have call predecessors, (1046), 454 states have return successors, (1839), 1109 states have call predecessors, (1839), 1046 states have call successors, (1839) [2023-12-15 23:07:43,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15256 states to 15256 states and 24536 transitions. [2023-12-15 23:07:43,542 INFO L78 Accepts]: Start accepts. Automaton has 15256 states and 24536 transitions. Word has length 120 [2023-12-15 23:07:43,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:43,542 INFO L495 AbstractCegarLoop]: Abstraction has 15256 states and 24536 transitions. [2023-12-15 23:07:43,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:43,542 INFO L276 IsEmpty]: Start isEmpty. Operand 15256 states and 24536 transitions. [2023-12-15 23:07:43,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:43,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:43,554 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] [2023-12-15 23:07:43,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 23:07:43,554 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:43,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:43,554 INFO L85 PathProgramCache]: Analyzing trace with hash -507608745, now seen corresponding path program 1 times [2023-12-15 23:07:43,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:43,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686192234] [2023-12-15 23:07:43,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:43,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:43,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:43,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:43,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:43,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:43,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:43,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:43,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686192234] [2023-12-15 23:07:43,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686192234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:43,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:43,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:43,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671852356] [2023-12-15 23:07:43,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:43,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:43,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:43,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:43,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:43,765 INFO L87 Difference]: Start difference. First operand 15256 states and 24536 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:46,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:46,502 INFO L93 Difference]: Finished difference Result 58506 states and 95261 transitions. [2023-12-15 23:07:46,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:07:46,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:46,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:46,658 INFO L225 Difference]: With dead ends: 58506 [2023-12-15 23:07:46,658 INFO L226 Difference]: Without dead ends: 43264 [2023-12-15 23:07:46,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:07:46,698 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 1211 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 2448 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 2506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:46,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1235 Valid, 1447 Invalid, 2506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2448 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 23:07:46,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43264 states. [2023-12-15 23:07:47,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43264 to 30306. [2023-12-15 23:07:47,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30306 states, 27397 states have (on average 1.5729824433332116) internal successors, (43095), 27526 states have internal predecessors, (43095), 2006 states have call successors, (2006), 774 states have call predecessors, (2006), 902 states have return successors, (4321), 2133 states have call predecessors, (4321), 2006 states have call successors, (4321) [2023-12-15 23:07:47,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30306 states to 30306 states and 49422 transitions. [2023-12-15 23:07:47,985 INFO L78 Accepts]: Start accepts. Automaton has 30306 states and 49422 transitions. Word has length 120 [2023-12-15 23:07:47,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:47,986 INFO L495 AbstractCegarLoop]: Abstraction has 30306 states and 49422 transitions. [2023-12-15 23:07:47,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:47,986 INFO L276 IsEmpty]: Start isEmpty. Operand 30306 states and 49422 transitions. [2023-12-15 23:07:48,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:48,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:48,003 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] [2023-12-15 23:07:48,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 23:07:48,003 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:48,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:48,003 INFO L85 PathProgramCache]: Analyzing trace with hash -536109035, now seen corresponding path program 1 times [2023-12-15 23:07:48,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:48,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603827453] [2023-12-15 23:07:48,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:48,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:48,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:48,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:48,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:48,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:48,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:48,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:48,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:48,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603827453] [2023-12-15 23:07:48,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603827453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:48,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:48,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:48,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747482204] [2023-12-15 23:07:48,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:48,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:48,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:48,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:48,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:48,126 INFO L87 Difference]: Start difference. First operand 30306 states and 49422 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:52,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:52,126 INFO L93 Difference]: Finished difference Result 114466 states and 189029 transitions. [2023-12-15 23:07:52,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:07:52,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:52,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:52,390 INFO L225 Difference]: With dead ends: 114466 [2023-12-15 23:07:52,390 INFO L226 Difference]: Without dead ends: 84174 [2023-12-15 23:07:52,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:07:52,478 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 1059 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 2750 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 2807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:52,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 1447 Invalid, 2807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2750 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-15 23:07:52,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84174 states. [2023-12-15 23:07:54,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84174 to 60403. [2023-12-15 23:07:54,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60403 states, 54742 states have (on average 1.5729238975558073) internal successors, (86105), 54999 states have internal predecessors, (86105), 3862 states have call successors, (3862), 1542 states have call predecessors, (3862), 1798 states have return successors, (10679), 4117 states have call predecessors, (10679), 3862 states have call successors, (10679) [2023-12-15 23:07:55,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60403 states to 60403 states and 100646 transitions. [2023-12-15 23:07:55,279 INFO L78 Accepts]: Start accepts. Automaton has 60403 states and 100646 transitions. Word has length 120 [2023-12-15 23:07:55,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:07:55,280 INFO L495 AbstractCegarLoop]: Abstraction has 60403 states and 100646 transitions. [2023-12-15 23:07:55,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:55,281 INFO L276 IsEmpty]: Start isEmpty. Operand 60403 states and 100646 transitions. [2023-12-15 23:07:55,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:07:55,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:07:55,311 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] [2023-12-15 23:07:55,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 23:07:55,311 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:07:55,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:07:55,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1818276247, now seen corresponding path program 1 times [2023-12-15 23:07:55,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:07:55,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245737189] [2023-12-15 23:07:55,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:07:55,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:07:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:55,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:07:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:55,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:07:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:55,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:07:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:55,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:07:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:55,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:07:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:07:55,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:07:55,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:07:55,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245737189] [2023-12-15 23:07:55,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245737189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:07:55,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:07:55,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:07:55,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324032948] [2023-12-15 23:07:55,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:07:55,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:07:55,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:07:55,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:07:55,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:07:55,441 INFO L87 Difference]: Start difference. First operand 60403 states and 100646 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:07:58,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:07:58,477 INFO L93 Difference]: Finished difference Result 137367 states and 234736 transitions. [2023-12-15 23:07:58,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:07:58,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 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 120 [2023-12-15 23:07:58,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:07:58,723 INFO L225 Difference]: With dead ends: 137367 [2023-12-15 23:07:58,723 INFO L226 Difference]: Without dead ends: 76978 [2023-12-15 23:07:58,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:07:58,851 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 771 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:07:58,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 743 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 23:07:58,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76978 states. [2023-12-15 23:08:01,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76978 to 60403. [2023-12-15 23:08:01,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60403 states, 54742 states have (on average 1.568229147638011) internal successors, (85848), 54999 states have internal predecessors, (85848), 3862 states have call successors, (3862), 1542 states have call predecessors, (3862), 1798 states have return successors, (10679), 4117 states have call predecessors, (10679), 3862 states have call successors, (10679) [2023-12-15 23:08:01,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60403 states to 60403 states and 100389 transitions. [2023-12-15 23:08:01,862 INFO L78 Accepts]: Start accepts. Automaton has 60403 states and 100389 transitions. Word has length 120 [2023-12-15 23:08:01,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:08:01,863 INFO L495 AbstractCegarLoop]: Abstraction has 60403 states and 100389 transitions. [2023-12-15 23:08:01,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:08:01,863 INFO L276 IsEmpty]: Start isEmpty. Operand 60403 states and 100389 transitions. [2023-12-15 23:08:01,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:08:01,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:08:01,902 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] [2023-12-15 23:08:01,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 23:08:01,902 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:08:01,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:08:01,903 INFO L85 PathProgramCache]: Analyzing trace with hash -599627819, now seen corresponding path program 1 times [2023-12-15 23:08:01,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:08:01,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406206983] [2023-12-15 23:08:01,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:08:01,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:08:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:02,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:08:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:02,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:08:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:02,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:08:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:02,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:08:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:02,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:08:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:02,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:08:02,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:08:02,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406206983] [2023-12-15 23:08:02,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406206983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:08:02,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:08:02,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:08:02,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483668803] [2023-12-15 23:08:02,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:08:02,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:08:02,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:08:02,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:08:02,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:08:02,209 INFO L87 Difference]: Start difference. First operand 60403 states and 100389 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:08:07,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:08:07,602 INFO L93 Difference]: Finished difference Result 217805 states and 367535 transitions. [2023-12-15 23:08:07,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:08:07,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 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 120 [2023-12-15 23:08:07,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:08:08,145 INFO L225 Difference]: With dead ends: 217805 [2023-12-15 23:08:08,145 INFO L226 Difference]: Without dead ends: 157416 [2023-12-15 23:08:08,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:08:08,290 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 1064 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 2378 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:08:08,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 1447 Invalid, 2436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2378 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 23:08:08,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157416 states. [2023-12-15 23:08:13,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157416 to 121110. [2023-12-15 23:08:13,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121110 states, 110073 states have (on average 1.5683955193371673) internal successors, (172638), 110586 states have internal predecessors, (172638), 7446 states have call successors, (7446), 3078 states have call predecessors, (7446), 3590 states have return successors, (27641), 7957 states have call predecessors, (27641), 7446 states have call successors, (27641) [2023-12-15 23:08:14,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121110 states to 121110 states and 207725 transitions. [2023-12-15 23:08:14,097 INFO L78 Accepts]: Start accepts. Automaton has 121110 states and 207725 transitions. Word has length 120 [2023-12-15 23:08:14,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:08:14,098 INFO L495 AbstractCegarLoop]: Abstraction has 121110 states and 207725 transitions. [2023-12-15 23:08:14,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:08:14,098 INFO L276 IsEmpty]: Start isEmpty. Operand 121110 states and 207725 transitions. [2023-12-15 23:08:14,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:08:14,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:08:14,163 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] [2023-12-15 23:08:14,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 23:08:14,163 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:08:14,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:08:14,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1594321517, now seen corresponding path program 1 times [2023-12-15 23:08:14,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:08:14,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675228087] [2023-12-15 23:08:14,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:08:14,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:08:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:14,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:08:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:14,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:08:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:14,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:08:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:14,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:08:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:14,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 23:08:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:14,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:08:14,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:08:14,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675228087] [2023-12-15 23:08:14,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675228087] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:08:14,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:08:14,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:08:14,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514454161] [2023-12-15 23:08:14,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:08:14,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:08:14,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:08:14,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:08:14,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:08:14,314 INFO L87 Difference]: Start difference. First operand 121110 states and 207725 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Received shutdown request... [2023-12-15 23:08:16,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:08:16,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:08:16,029 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 588 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:08:16,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 262 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:08:16,030 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 23:08:16,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 23:08:16,031 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (121110states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (53854 states constructed, input type IntersectNwa). [2023-12-15 23:08:16,035 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:08:16,036 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 23:08:16,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:08:16 BoogieIcfgContainer [2023-12-15 23:08:16,038 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 23:08:16,038 INFO L158 Benchmark]: Toolchain (without parser) took 59587.22ms. Allocated memory was 213.9MB in the beginning and 5.8GB in the end (delta: 5.5GB). Free memory was 177.8MB in the beginning and 3.6GB in the end (delta: -3.5GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-15 23:08:16,038 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 213.9MB. Free memory is still 167.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:08:16,038 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.23ms. Allocated memory is still 213.9MB. Free memory was 177.5MB in the beginning and 157.1MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-15 23:08:16,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.59ms. Allocated memory is still 213.9MB. Free memory was 157.1MB in the beginning and 153.7MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 23:08:16,039 INFO L158 Benchmark]: Boogie Preprocessor took 64.08ms. Allocated memory is still 213.9MB. Free memory was 153.7MB in the beginning and 149.9MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 23:08:16,039 INFO L158 Benchmark]: RCFGBuilder took 653.26ms. Allocated memory was 213.9MB in the beginning and 280.0MB in the end (delta: 66.1MB). Free memory was 149.5MB in the beginning and 233.1MB in the end (delta: -83.6MB). Peak memory consumption was 34.1MB. Max. memory is 8.0GB. [2023-12-15 23:08:16,039 INFO L158 Benchmark]: TraceAbstraction took 58429.70ms. Allocated memory was 280.0MB in the beginning and 5.8GB in the end (delta: 5.5GB). Free memory was 232.5MB in the beginning and 3.6GB in the end (delta: -3.4GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-15 23:08:16,040 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 213.9MB. Free memory is still 167.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 384.23ms. Allocated memory is still 213.9MB. Free memory was 177.5MB in the beginning and 157.1MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.59ms. Allocated memory is still 213.9MB. Free memory was 157.1MB in the beginning and 153.7MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 64.08ms. Allocated memory is still 213.9MB. Free memory was 153.7MB in the beginning and 149.9MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 653.26ms. Allocated memory was 213.9MB in the beginning and 280.0MB in the end (delta: 66.1MB). Free memory was 149.5MB in the beginning and 233.1MB in the end (delta: -83.6MB). Peak memory consumption was 34.1MB. Max. memory is 8.0GB. * TraceAbstraction took 58429.70ms. Allocated memory was 280.0MB in the beginning and 5.8GB in the end (delta: 5.5GB). Free memory was 232.5MB in the beginning and 3.6GB in the end (delta: -3.4GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 20). Cancelled while NwaCegarLoop was constructing difference of abstraction (121110states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (53854 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 256 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.4s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 39.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16627 SdHoareTripleChecker+Valid, 21.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16349 mSDsluCounter, 17311 SdHoareTripleChecker+Invalid, 18.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13053 mSDsCounter, 1026 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32083 IncrementalHoareTripleChecker+Invalid, 33109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1026 mSolverCounterUnsat, 4258 mSDtfsCounter, 32083 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 422 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121110occurred in iteration=16, InterpolantAutomatonStates: 182, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 110370 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 2040 NumberOfCodeBlocks, 2040 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2023 ConstructedInterpolants, 0 QuantifiedInterpolants, 5913 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown