/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/Problem05_label41+token_ring.03.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-18 22:05:53,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-18 22:05:53,744 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-18 22:05:53,746 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-18 22:05:53,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-18 22:05:53,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-18 22:05:53,761 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-18 22:05:53,762 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-18 22:05:53,762 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-18 22:05:53,765 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-18 22:05:53,765 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-18 22:05:53,766 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-18 22:05:53,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-18 22:05:53,767 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-18 22:05:53,767 INFO L153 SettingsManager]: * Use SBE=true [2023-12-18 22:05:53,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-18 22:05:53,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-18 22:05:53,767 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-18 22:05:53,768 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-18 22:05:53,768 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-18 22:05:53,769 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-18 22:05:53,769 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-18 22:05:53,769 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-18 22:05:53,769 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-18 22:05:53,769 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-18 22:05:53,769 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-18 22:05:53,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-18 22:05:53,770 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-18 22:05:53,770 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-18 22:05:53,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-18 22:05:53,771 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-18 22:05:53,771 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-18 22:05:53,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 22:05:53,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-18 22:05:53,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-18 22:05:53,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-18 22:05:53,771 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-18 22:05:53,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-18 22:05:53,772 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-18 22:05:53,772 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-18 22:05:53,772 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-18 22:05:53,772 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-18 22:05:53,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-18 22:05:53,772 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-18 22:05:53,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-18 22:05:53,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-18 22:05:53,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-18 22:05:53,977 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-18 22:05:53,977 INFO L274 PluginConnector]: CDTParser initialized [2023-12-18 22:05:53,978 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label41+token_ring.03.cil-2.c [2023-12-18 22:05:54,972 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-18 22:05:55,408 INFO L384 CDTParser]: Found 1 translation units. [2023-12-18 22:05:55,409 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.03.cil-2.c [2023-12-18 22:05:55,455 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddcc9d2d4/afbd2237e3b14e2db0a3c20e632b7749/FLAGb7c4b1c95 [2023-12-18 22:05:55,468 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddcc9d2d4/afbd2237e3b14e2db0a3c20e632b7749 [2023-12-18 22:05:55,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-18 22:05:55,471 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-18 22:05:55,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-18 22:05:55,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-18 22:05:55,476 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-18 22:05:55,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:05:55" (1/1) ... [2023-12-18 22:05:55,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7509a539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:55, skipping insertion in model container [2023-12-18 22:05:55,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:05:55" (1/1) ... [2023-12-18 22:05:55,621 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-18 22:05:56,776 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.03.cil-2.c[376251,376264] [2023-12-18 22:05:56,796 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.03.cil-2.c[383339,383352] [2023-12-18 22:05:56,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 22:05:56,896 INFO L202 MainTranslator]: Completed pre-run [2023-12-18 22:05:57,421 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.03.cil-2.c[376251,376264] [2023-12-18 22:05:57,426 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.03.cil-2.c[383339,383352] [2023-12-18 22:05:57,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 22:05:57,492 INFO L206 MainTranslator]: Completed translation [2023-12-18 22:05:57,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:57 WrapperNode [2023-12-18 22:05:57,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-18 22:05:57,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-18 22:05:57,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-18 22:05:57,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-18 22:05:57,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:57" (1/1) ... [2023-12-18 22:05:57,556 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:57" (1/1) ... [2023-12-18 22:05:57,795 INFO L138 Inliner]: procedures = 50, calls = 50, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 12693 [2023-12-18 22:05:57,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-18 22:05:57,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-18 22:05:57,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-18 22:05:57,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-18 22:05:57,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:57" (1/1) ... [2023-12-18 22:05:57,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:57" (1/1) ... [2023-12-18 22:05:57,844 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:57" (1/1) ... [2023-12-18 22:05:57,930 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-18 22:05:57,930 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:57" (1/1) ... [2023-12-18 22:05:57,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:57" (1/1) ... [2023-12-18 22:05:58,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:57" (1/1) ... [2023-12-18 22:05:58,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:57" (1/1) ... [2023-12-18 22:05:58,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:57" (1/1) ... [2023-12-18 22:05:58,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:57" (1/1) ... [2023-12-18 22:05:58,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-18 22:05:58,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-18 22:05:58,243 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-18 22:05:58,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-18 22:05:58,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:57" (1/1) ... [2023-12-18 22:05:58,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 22:05:58,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:05:58,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-18 22:05:58,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-18 22:05:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-18 22:05:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-18 22:05:58,296 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-18 22:05:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-18 22:05:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-18 22:05:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-18 22:05:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-18 22:05:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-18 22:05:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-18 22:05:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-18 22:05:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-18 22:05:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-18 22:05:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-18 22:05:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-18 22:05:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-18 22:05:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-18 22:05:58,371 INFO L241 CfgBuilder]: Building ICFG [2023-12-18 22:05:58,373 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-18 22:06:03,466 INFO L282 CfgBuilder]: Performing block encoding [2023-12-18 22:06:03,521 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-18 22:06:03,522 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-12-18 22:06:03,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:06:03 BoogieIcfgContainer [2023-12-18 22:06:03,522 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-18 22:06:03,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-18 22:06:03,524 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-18 22:06:03,526 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-18 22:06:03,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:05:55" (1/3) ... [2023-12-18 22:06:03,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5731554a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:06:03, skipping insertion in model container [2023-12-18 22:06:03,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:05:57" (2/3) ... [2023-12-18 22:06:03,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5731554a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:06:03, skipping insertion in model container [2023-12-18 22:06:03,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:06:03" (3/3) ... [2023-12-18 22:06:03,527 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label41+token_ring.03.cil-2.c [2023-12-18 22:06:03,539 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-18 22:06:03,539 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-18 22:06:03,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-18 22:06:03,594 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;@4e8dec4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-18 22:06:03,594 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-18 22:06:03,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 2264 states, 2238 states have (on average 1.8847184986595173) internal successors, (4218), 2241 states have internal predecessors, (4218), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-18 22:06:03,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-18 22:06:03,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:03,612 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] [2023-12-18 22:06:03,612 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:03,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:03,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1010118271, now seen corresponding path program 1 times [2023-12-18 22:06:03,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:03,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782397208] [2023-12-18 22:06:03,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:03,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:03,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:03,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:03,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:03,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:03,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:03,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:06:03,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:03,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782397208] [2023-12-18 22:06:03,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782397208] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:03,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:06:03,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-18 22:06:03,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412618354] [2023-12-18 22:06:03,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:03,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-18 22:06:03,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:03,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-18 22:06:03,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-18 22:06:03,997 INFO L87 Difference]: Start difference. First operand has 2264 states, 2238 states have (on average 1.8847184986595173) internal successors, (4218), 2241 states have internal predecessors, (4218), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:04,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:04,839 INFO L93 Difference]: Finished difference Result 4732 states and 8845 transitions. [2023-12-18 22:06:04,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-18 22:06:04,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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 71 [2023-12-18 22:06:04,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:04,856 INFO L225 Difference]: With dead ends: 4732 [2023-12-18 22:06:04,857 INFO L226 Difference]: Without dead ends: 2471 [2023-12-18 22:06:04,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:06:04,864 INFO L413 NwaCegarLoop]: 4074 mSDtfsCounter, 4459 mSDsluCounter, 12195 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4469 SdHoareTripleChecker+Valid, 16269 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:04,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4469 Valid, 16269 Invalid, 864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-18 22:06:04,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2023-12-18 22:06:04,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2392. [2023-12-18 22:06:04,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2348 states have (on average 1.8373083475298126) internal successors, (4314), 2351 states have internal predecessors, (4314), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2023-12-18 22:06:04,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 4375 transitions. [2023-12-18 22:06:04,963 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 4375 transitions. Word has length 71 [2023-12-18 22:06:04,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:04,964 INFO L495 AbstractCegarLoop]: Abstraction has 2392 states and 4375 transitions. [2023-12-18 22:06:04,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:04,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 4375 transitions. [2023-12-18 22:06:04,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-18 22:06:04,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:04,972 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] [2023-12-18 22:06:04,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-18 22:06:04,972 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:04,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:04,973 INFO L85 PathProgramCache]: Analyzing trace with hash -308869883, now seen corresponding path program 1 times [2023-12-18 22:06:04,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:04,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086099870] [2023-12-18 22:06:04,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:04,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:04,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:05,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:05,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:05,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:05,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:05,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:05,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:06:05,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:05,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086099870] [2023-12-18 22:06:05,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086099870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:05,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:06:05,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:06:05,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984903108] [2023-12-18 22:06:05,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:05,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:06:05,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:05,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:06:05,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:05,131 INFO L87 Difference]: Start difference. First operand 2392 states and 4375 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:06,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:06,300 INFO L93 Difference]: Finished difference Result 2906 states and 5181 transitions. [2023-12-18 22:06:06,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:06:06,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 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 71 [2023-12-18 22:06:06,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:06,311 INFO L225 Difference]: With dead ends: 2906 [2023-12-18 22:06:06,311 INFO L226 Difference]: Without dead ends: 2644 [2023-12-18 22:06:06,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:06:06,313 INFO L413 NwaCegarLoop]: 4151 mSDtfsCounter, 4453 mSDsluCounter, 16419 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4463 SdHoareTripleChecker+Valid, 20570 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:06,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4463 Valid, 20570 Invalid, 1329 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [43 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-18 22:06:06,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2644 states. [2023-12-18 22:06:06,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2644 to 2515. [2023-12-18 22:06:06,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2515 states, 2452 states have (on average 1.8242251223491028) internal successors, (4473), 2456 states have internal predecessors, (4473), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2023-12-18 22:06:06,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 4560 transitions. [2023-12-18 22:06:06,376 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 4560 transitions. Word has length 71 [2023-12-18 22:06:06,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:06,377 INFO L495 AbstractCegarLoop]: Abstraction has 2515 states and 4560 transitions. [2023-12-18 22:06:06,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:06,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 4560 transitions. [2023-12-18 22:06:06,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-18 22:06:06,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:06,378 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] [2023-12-18 22:06:06,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-18 22:06:06,379 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:06,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:06,379 INFO L85 PathProgramCache]: Analyzing trace with hash 124859203, now seen corresponding path program 1 times [2023-12-18 22:06:06,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:06,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489907185] [2023-12-18 22:06:06,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:06,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:06,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:06,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:06,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:06,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:06,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:06:06,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:06,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489907185] [2023-12-18 22:06:06,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489907185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:06,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:06:06,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:06:06,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608779098] [2023-12-18 22:06:06,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:06,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:06:06,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:06,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:06:06,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:06,506 INFO L87 Difference]: Start difference. First operand 2515 states and 4560 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:07,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:07,550 INFO L93 Difference]: Finished difference Result 3352 states and 5868 transitions. [2023-12-18 22:06:07,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:06:07,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 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 71 [2023-12-18 22:06:07,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:07,560 INFO L225 Difference]: With dead ends: 3352 [2023-12-18 22:06:07,560 INFO L226 Difference]: Without dead ends: 2967 [2023-12-18 22:06:07,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:06:07,563 INFO L413 NwaCegarLoop]: 4149 mSDtfsCounter, 4451 mSDsluCounter, 16419 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4461 SdHoareTripleChecker+Valid, 20568 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:07,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4461 Valid, 20568 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-18 22:06:07,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2023-12-18 22:06:07,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 2762. [2023-12-18 22:06:07,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2661 states have (on average 1.8008267568583238) internal successors, (4792), 2667 states have internal predecessors, (4792), 65 states have call successors, (65), 30 states have call predecessors, (65), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2023-12-18 22:06:07,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 4935 transitions. [2023-12-18 22:06:07,634 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 4935 transitions. Word has length 71 [2023-12-18 22:06:07,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:07,634 INFO L495 AbstractCegarLoop]: Abstraction has 2762 states and 4935 transitions. [2023-12-18 22:06:07,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:07,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 4935 transitions. [2023-12-18 22:06:07,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-18 22:06:07,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:07,636 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] [2023-12-18 22:06:07,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-18 22:06:07,636 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:07,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:07,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1385776453, now seen corresponding path program 1 times [2023-12-18 22:06:07,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:07,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633875342] [2023-12-18 22:06:07,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:07,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:07,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:07,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:07,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:07,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:07,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:06:07,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:07,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633875342] [2023-12-18 22:06:07,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633875342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:07,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:06:07,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:06:07,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551956915] [2023-12-18 22:06:07,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:07,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:06:07,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:07,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:06:07,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:07,807 INFO L87 Difference]: Start difference. First operand 2762 states and 4935 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:08,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:08,259 INFO L93 Difference]: Finished difference Result 3589 states and 6236 transitions. [2023-12-18 22:06:08,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:06:08,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 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 71 [2023-12-18 22:06:08,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:08,268 INFO L225 Difference]: With dead ends: 3589 [2023-12-18 22:06:08,268 INFO L226 Difference]: Without dead ends: 2957 [2023-12-18 22:06:08,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:06:08,271 INFO L413 NwaCegarLoop]: 4057 mSDtfsCounter, 4387 mSDsluCounter, 12099 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4398 SdHoareTripleChecker+Valid, 16156 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:08,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4398 Valid, 16156 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-18 22:06:08,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2023-12-18 22:06:08,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2762. [2023-12-18 22:06:08,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2661 states have (on average 1.7989477639984968) internal successors, (4787), 2667 states have internal predecessors, (4787), 65 states have call successors, (65), 30 states have call predecessors, (65), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2023-12-18 22:06:08,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 4930 transitions. [2023-12-18 22:06:08,396 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 4930 transitions. Word has length 71 [2023-12-18 22:06:08,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:08,396 INFO L495 AbstractCegarLoop]: Abstraction has 2762 states and 4930 transitions. [2023-12-18 22:06:08,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:08,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 4930 transitions. [2023-12-18 22:06:08,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-18 22:06:08,397 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:08,398 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] [2023-12-18 22:06:08,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-18 22:06:08,398 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:08,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:08,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1426451203, now seen corresponding path program 1 times [2023-12-18 22:06:08,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:08,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392164548] [2023-12-18 22:06:08,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:08,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:08,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:08,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:08,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:08,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:08,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:08,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:06:08,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:08,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392164548] [2023-12-18 22:06:08,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392164548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:08,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:06:08,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:06:08,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595273113] [2023-12-18 22:06:08,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:08,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:06:08,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:08,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:06:08,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:08,493 INFO L87 Difference]: Start difference. First operand 2762 states and 4930 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:09,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:09,453 INFO L93 Difference]: Finished difference Result 4380 states and 7425 transitions. [2023-12-18 22:06:09,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:06:09,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 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 71 [2023-12-18 22:06:09,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:09,464 INFO L225 Difference]: With dead ends: 4380 [2023-12-18 22:06:09,464 INFO L226 Difference]: Without dead ends: 3748 [2023-12-18 22:06:09,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:06:09,469 INFO L413 NwaCegarLoop]: 4147 mSDtfsCounter, 4558 mSDsluCounter, 16414 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4572 SdHoareTripleChecker+Valid, 20561 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:09,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4572 Valid, 20561 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-18 22:06:09,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2023-12-18 22:06:09,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 3253. [2023-12-18 22:06:09,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 3080 states have (on average 1.7603896103896104) internal successors, (5422), 3090 states have internal predecessors, (5422), 109 states have call successors, (109), 54 states have call predecessors, (109), 62 states have return successors, (144), 116 states have call predecessors, (144), 109 states have call successors, (144) [2023-12-18 22:06:09,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 5675 transitions. [2023-12-18 22:06:09,541 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 5675 transitions. Word has length 71 [2023-12-18 22:06:09,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:09,541 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 5675 transitions. [2023-12-18 22:06:09,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:09,542 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 5675 transitions. [2023-12-18 22:06:09,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-18 22:06:09,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:09,543 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] [2023-12-18 22:06:09,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-18 22:06:09,543 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:09,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:09,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1481730683, now seen corresponding path program 1 times [2023-12-18 22:06:09,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:09,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172040627] [2023-12-18 22:06:09,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:09,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:09,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:09,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:09,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:09,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:09,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:09,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:09,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:06:09,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:09,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172040627] [2023-12-18 22:06:09,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172040627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:09,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:06:09,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:06:09,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453429245] [2023-12-18 22:06:09,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:09,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:06:09,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:09,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:06:09,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:09,633 INFO L87 Difference]: Start difference. First operand 3253 states and 5675 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:10,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:10,694 INFO L93 Difference]: Finished difference Result 6161 states and 10154 transitions. [2023-12-18 22:06:10,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:06:10,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 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 71 [2023-12-18 22:06:10,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:10,709 INFO L225 Difference]: With dead ends: 6161 [2023-12-18 22:06:10,709 INFO L226 Difference]: Without dead ends: 5038 [2023-12-18 22:06:10,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:06:10,714 INFO L413 NwaCegarLoop]: 4146 mSDtfsCounter, 4460 mSDsluCounter, 16411 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4469 SdHoareTripleChecker+Valid, 20557 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:10,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4469 Valid, 20557 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-18 22:06:10,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5038 states. [2023-12-18 22:06:10,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5038 to 4191. [2023-12-18 22:06:10,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4191 states, 3878 states have (on average 1.709128416709644) internal successors, (6628), 3896 states have internal predecessors, (6628), 193 states have call successors, (193), 102 states have call predecessors, (193), 118 states have return successors, (290), 208 states have call predecessors, (290), 193 states have call successors, (290) [2023-12-18 22:06:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4191 states to 4191 states and 7111 transitions. [2023-12-18 22:06:10,816 INFO L78 Accepts]: Start accepts. Automaton has 4191 states and 7111 transitions. Word has length 71 [2023-12-18 22:06:10,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:10,816 INFO L495 AbstractCegarLoop]: Abstraction has 4191 states and 7111 transitions. [2023-12-18 22:06:10,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:10,817 INFO L276 IsEmpty]: Start isEmpty. Operand 4191 states and 7111 transitions. [2023-12-18 22:06:10,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-18 22:06:10,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:10,819 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] [2023-12-18 22:06:10,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-18 22:06:10,819 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:10,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:10,822 INFO L85 PathProgramCache]: Analyzing trace with hash -605711677, now seen corresponding path program 1 times [2023-12-18 22:06:10,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:10,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732754470] [2023-12-18 22:06:10,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:10,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:10,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:10,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:10,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:10,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:10,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:06:10,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:10,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732754470] [2023-12-18 22:06:10,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732754470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:10,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:06:10,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:06:10,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159365676] [2023-12-18 22:06:10,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:10,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:06:10,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:10,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:06:10,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:10,990 INFO L87 Difference]: Start difference. First operand 4191 states and 7111 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:11,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:11,983 INFO L93 Difference]: Finished difference Result 9281 states and 14962 transitions. [2023-12-18 22:06:11,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:06:11,983 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 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 71 [2023-12-18 22:06:11,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:12,014 INFO L225 Difference]: With dead ends: 9281 [2023-12-18 22:06:12,015 INFO L226 Difference]: Without dead ends: 7220 [2023-12-18 22:06:12,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:06:12,023 INFO L413 NwaCegarLoop]: 4147 mSDtfsCounter, 4448 mSDsluCounter, 16414 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4462 SdHoareTripleChecker+Valid, 20561 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:12,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4462 Valid, 20561 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-18 22:06:12,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7220 states. [2023-12-18 22:06:12,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7220 to 6122. [2023-12-18 22:06:12,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 5537 states have (on average 1.6525194148455842) internal successors, (9150), 5571 states have internal predecessors, (9150), 353 states have call successors, (353), 198 states have call predecessors, (353), 230 states have return successors, (628), 384 states have call predecessors, (628), 353 states have call successors, (628) [2023-12-18 22:06:12,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 10131 transitions. [2023-12-18 22:06:12,190 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 10131 transitions. Word has length 71 [2023-12-18 22:06:12,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:12,191 INFO L495 AbstractCegarLoop]: Abstraction has 6122 states and 10131 transitions. [2023-12-18 22:06:12,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:12,191 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 10131 transitions. [2023-12-18 22:06:12,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-18 22:06:12,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:12,195 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] [2023-12-18 22:06:12,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-18 22:06:12,195 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:12,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:12,196 INFO L85 PathProgramCache]: Analyzing trace with hash 932628353, now seen corresponding path program 1 times [2023-12-18 22:06:12,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:12,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663573722] [2023-12-18 22:06:12,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:12,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:12,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:12,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:12,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:12,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:12,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:12,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:06:12,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:12,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663573722] [2023-12-18 22:06:12,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663573722] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:12,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:06:12,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-18 22:06:12,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592911024] [2023-12-18 22:06:12,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:12,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-18 22:06:12,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:12,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-18 22:06:12,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-18 22:06:12,253 INFO L87 Difference]: Start difference. First operand 6122 states and 10131 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:13,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:13,142 INFO L93 Difference]: Finished difference Result 13461 states and 21515 transitions. [2023-12-18 22:06:13,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-18 22:06:13,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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 71 [2023-12-18 22:06:13,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:13,174 INFO L225 Difference]: With dead ends: 13461 [2023-12-18 22:06:13,174 INFO L226 Difference]: Without dead ends: 9470 [2023-12-18 22:06:13,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-18 22:06:13,185 INFO L413 NwaCegarLoop]: 4178 mSDtfsCounter, 4606 mSDsluCounter, 12239 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4633 SdHoareTripleChecker+Valid, 16417 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:13,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4633 Valid, 16417 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-18 22:06:13,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9470 states. [2023-12-18 22:06:13,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9470 to 8136. [2023-12-18 22:06:13,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8136 states, 7244 states have (on average 1.6114025400331309) internal successors, (11673), 7311 states have internal predecessors, (11673), 542 states have call successors, (542), 300 states have call predecessors, (542), 348 states have return successors, (899), 556 states have call predecessors, (899), 542 states have call successors, (899) [2023-12-18 22:06:13,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8136 states to 8136 states and 13114 transitions. [2023-12-18 22:06:13,401 INFO L78 Accepts]: Start accepts. Automaton has 8136 states and 13114 transitions. Word has length 71 [2023-12-18 22:06:13,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:13,402 INFO L495 AbstractCegarLoop]: Abstraction has 8136 states and 13114 transitions. [2023-12-18 22:06:13,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:06:13,402 INFO L276 IsEmpty]: Start isEmpty. Operand 8136 states and 13114 transitions. [2023-12-18 22:06:13,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-18 22:06:13,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:13,414 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:06:13,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-18 22:06:13,414 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:13,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:13,415 INFO L85 PathProgramCache]: Analyzing trace with hash 919759115, now seen corresponding path program 1 times [2023-12-18 22:06:13,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:13,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203497231] [2023-12-18 22:06:13,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:13,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:13,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:13,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:13,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:13,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:13,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:13,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-18 22:06:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:13,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:13,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-18 22:06:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-18 22:06:13,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:13,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203497231] [2023-12-18 22:06:13,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203497231] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 22:06:13,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568101167] [2023-12-18 22:06:13,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:13,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:06:13,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:06:13,526 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 22:06:13,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-18 22:06:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:13,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-18 22:06:13,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 22:06:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-18 22:06:13,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 22:06:13,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568101167] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:13,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-18 22:06:13,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-18 22:06:13,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033735897] [2023-12-18 22:06:13,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:13,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 22:06:13,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:13,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 22:06:13,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:13,703 INFO L87 Difference]: Start difference. First operand 8136 states and 13114 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-18 22:06:14,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:14,005 INFO L93 Difference]: Finished difference Result 19993 states and 31344 transitions. [2023-12-18 22:06:14,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 22:06:14,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 115 [2023-12-18 22:06:14,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:14,039 INFO L225 Difference]: With dead ends: 19993 [2023-12-18 22:06:14,040 INFO L226 Difference]: Without dead ends: 13988 [2023-12-18 22:06:14,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:14,057 INFO L413 NwaCegarLoop]: 4149 mSDtfsCounter, 4122 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4122 SdHoareTripleChecker+Valid, 4322 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:14,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4122 Valid, 4322 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 22:06:14,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13988 states. [2023-12-18 22:06:14,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13988 to 13936. [2023-12-18 22:06:14,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13936 states, 12184 states have (on average 1.5635259356533158) internal successors, (19050), 12316 states have internal predecessors, (19050), 1054 states have call successors, (1054), 600 states have call predecessors, (1054), 696 states have return successors, (1737), 1051 states have call predecessors, (1737), 1054 states have call successors, (1737) [2023-12-18 22:06:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13936 states to 13936 states and 21841 transitions. [2023-12-18 22:06:14,603 INFO L78 Accepts]: Start accepts. Automaton has 13936 states and 21841 transitions. Word has length 115 [2023-12-18 22:06:14,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:14,604 INFO L495 AbstractCegarLoop]: Abstraction has 13936 states and 21841 transitions. [2023-12-18 22:06:14,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-18 22:06:14,604 INFO L276 IsEmpty]: Start isEmpty. Operand 13936 states and 21841 transitions. [2023-12-18 22:06:14,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-18 22:06:14,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:14,623 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:06:14,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-18 22:06:14,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:06:14,828 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:14,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:14,829 INFO L85 PathProgramCache]: Analyzing trace with hash 690437961, now seen corresponding path program 1 times [2023-12-18 22:06:14,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:14,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107473618] [2023-12-18 22:06:14,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:14,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:14,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:14,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:14,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:14,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:14,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:14,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-18 22:06:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:14,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:14,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-18 22:06:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:14,941 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-18 22:06:14,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:14,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107473618] [2023-12-18 22:06:14,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107473618] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 22:06:14,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372055778] [2023-12-18 22:06:14,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:14,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:06:14,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:06:14,942 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 22:06:14,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-18 22:06:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:15,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-18 22:06:15,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 22:06:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-18 22:06:15,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 22:06:15,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372055778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:15,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-18 22:06:15,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-18 22:06:15,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993354194] [2023-12-18 22:06:15,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:15,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 22:06:15,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:15,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 22:06:15,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:15,083 INFO L87 Difference]: Start difference. First operand 13936 states and 21841 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-18 22:06:15,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:15,659 INFO L93 Difference]: Finished difference Result 37241 states and 57483 transitions. [2023-12-18 22:06:15,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 22:06:15,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 115 [2023-12-18 22:06:15,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:15,723 INFO L225 Difference]: With dead ends: 37241 [2023-12-18 22:06:15,723 INFO L226 Difference]: Without dead ends: 25436 [2023-12-18 22:06:15,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:15,751 INFO L413 NwaCegarLoop]: 4149 mSDtfsCounter, 4127 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4127 SdHoareTripleChecker+Valid, 4322 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:15,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4127 Valid, 4322 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 22:06:15,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25436 states. [2023-12-18 22:06:16,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25436 to 25334. [2023-12-18 22:06:16,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25334 states, 21888 states have (on average 1.5295138888888888) internal successors, (33478), 22150 states have internal predecessors, (33478), 2052 states have call successors, (2052), 1200 states have call predecessors, (2052), 1392 states have return successors, (3387), 2015 states have call predecessors, (3387), 2052 states have call successors, (3387) [2023-12-18 22:06:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25334 states to 25334 states and 38917 transitions. [2023-12-18 22:06:16,518 INFO L78 Accepts]: Start accepts. Automaton has 25334 states and 38917 transitions. Word has length 115 [2023-12-18 22:06:16,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:16,518 INFO L495 AbstractCegarLoop]: Abstraction has 25334 states and 38917 transitions. [2023-12-18 22:06:16,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-18 22:06:16,518 INFO L276 IsEmpty]: Start isEmpty. Operand 25334 states and 38917 transitions. [2023-12-18 22:06:16,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-18 22:06:16,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:16,550 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:06:16,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-18 22:06:16,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-18 22:06:16,755 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:16,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:16,756 INFO L85 PathProgramCache]: Analyzing trace with hash 573874123, now seen corresponding path program 1 times [2023-12-18 22:06:16,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:16,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82042383] [2023-12-18 22:06:16,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:16,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:16,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:16,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:16,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:16,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:16,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:16,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-18 22:06:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:16,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:16,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-18 22:06:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:16,837 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-18 22:06:16,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:16,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82042383] [2023-12-18 22:06:16,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82042383] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 22:06:16,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846916430] [2023-12-18 22:06:16,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:16,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:06:16,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:06:16,838 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 22:06:16,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-18 22:06:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:16,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-18 22:06:16,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 22:06:16,956 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-18 22:06:16,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 22:06:16,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846916430] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:16,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-18 22:06:16,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-18 22:06:16,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951834904] [2023-12-18 22:06:16,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:16,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 22:06:16,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:16,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 22:06:16,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:16,958 INFO L87 Difference]: Start difference. First operand 25334 states and 38917 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-18 22:06:18,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:18,003 INFO L93 Difference]: Finished difference Result 70731 states and 108607 transitions. [2023-12-18 22:06:18,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 22:06:18,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 115 [2023-12-18 22:06:18,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:18,160 INFO L225 Difference]: With dead ends: 70731 [2023-12-18 22:06:18,160 INFO L226 Difference]: Without dead ends: 47529 [2023-12-18 22:06:18,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:18,207 INFO L413 NwaCegarLoop]: 4325 mSDtfsCounter, 182 mSDsluCounter, 4149 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 8474 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:18,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 8474 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 22:06:18,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47529 states. [2023-12-18 22:06:19,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47529 to 47529. [2023-12-18 22:06:19,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47529 states, 40776 states have (on average 1.5053217578968021) internal successors, (61381), 41231 states have internal predecessors, (61381), 3967 states have call successors, (3967), 2400 states have call predecessors, (3967), 2784 states have return successors, (7350), 3961 states have call predecessors, (7350), 3967 states have call successors, (7350) [2023-12-18 22:06:19,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47529 states to 47529 states and 72698 transitions. [2023-12-18 22:06:19,929 INFO L78 Accepts]: Start accepts. Automaton has 47529 states and 72698 transitions. Word has length 115 [2023-12-18 22:06:19,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:19,930 INFO L495 AbstractCegarLoop]: Abstraction has 47529 states and 72698 transitions. [2023-12-18 22:06:19,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-18 22:06:19,930 INFO L276 IsEmpty]: Start isEmpty. Operand 47529 states and 72698 transitions. [2023-12-18 22:06:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-18 22:06:20,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:20,021 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:06:20,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-18 22:06:20,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:06:20,226 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:20,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:20,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1434672612, now seen corresponding path program 1 times [2023-12-18 22:06:20,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:20,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34021576] [2023-12-18 22:06:20,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:20,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:20,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:20,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:20,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:20,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:20,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-18 22:06:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:20,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:20,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-18 22:06:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:20,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-18 22:06:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:20,313 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-18 22:06:20,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:20,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34021576] [2023-12-18 22:06:20,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34021576] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 22:06:20,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367757465] [2023-12-18 22:06:20,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:20,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:06:20,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:06:20,314 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 22:06:20,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-18 22:06:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:20,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-18 22:06:20,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 22:06:20,522 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-18 22:06:20,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 22:06:20,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367757465] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:20,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-18 22:06:20,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-18 22:06:20,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141484913] [2023-12-18 22:06:20,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:20,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 22:06:20,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:20,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 22:06:20,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:20,525 INFO L87 Difference]: Start difference. First operand 47529 states and 72698 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-18 22:06:22,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:22,783 INFO L93 Difference]: Finished difference Result 136273 states and 208325 transitions. [2023-12-18 22:06:22,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 22:06:22,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 148 [2023-12-18 22:06:22,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:23,075 INFO L225 Difference]: With dead ends: 136273 [2023-12-18 22:06:23,075 INFO L226 Difference]: Without dead ends: 90881 [2023-12-18 22:06:23,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:23,166 INFO L413 NwaCegarLoop]: 4158 mSDtfsCounter, 4081 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4081 SdHoareTripleChecker+Valid, 4331 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:23,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4081 Valid, 4331 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 22:06:23,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90881 states. [2023-12-18 22:06:25,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90881 to 90479. [2023-12-18 22:06:25,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90479 states, 77674 states have (on average 1.4913484563689265) internal successors, (115839), 78581 states have internal predecessors, (115839), 7381 states have call successors, (7381), 4654 states have call predecessors, (7381), 5422 states have return successors, (13774), 7307 states have call predecessors, (13774), 7381 states have call successors, (13774) [2023-12-18 22:06:26,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90479 states to 90479 states and 136994 transitions. [2023-12-18 22:06:26,041 INFO L78 Accepts]: Start accepts. Automaton has 90479 states and 136994 transitions. Word has length 148 [2023-12-18 22:06:26,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:26,041 INFO L495 AbstractCegarLoop]: Abstraction has 90479 states and 136994 transitions. [2023-12-18 22:06:26,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-18 22:06:26,042 INFO L276 IsEmpty]: Start isEmpty. Operand 90479 states and 136994 transitions. [2023-12-18 22:06:26,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-18 22:06:26,219 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:26,219 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:06:26,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-18 22:06:26,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:06:26,424 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:26,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:26,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1063188102, now seen corresponding path program 1 times [2023-12-18 22:06:26,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:26,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229117835] [2023-12-18 22:06:26,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:26,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:26,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:26,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:26,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:26,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:26,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:26,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-18 22:06:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:26,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-18 22:06:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:26,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:26,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-18 22:06:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:26,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:26,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-18 22:06:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:26,524 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-18 22:06:26,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:26,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229117835] [2023-12-18 22:06:26,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229117835] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 22:06:26,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509709209] [2023-12-18 22:06:26,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:26,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:06:26,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:06:26,526 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 22:06:26,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-18 22:06:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:26,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-18 22:06:26,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 22:06:26,712 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-18 22:06:26,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 22:06:26,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509709209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:26,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-18 22:06:26,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-18 22:06:26,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021835285] [2023-12-18 22:06:26,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:26,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 22:06:26,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:26,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 22:06:26,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:26,715 INFO L87 Difference]: Start difference. First operand 90479 states and 136994 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-18 22:06:29,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:29,114 INFO L93 Difference]: Finished difference Result 137875 states and 209245 transitions. [2023-12-18 22:06:29,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 22:06:29,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 165 [2023-12-18 22:06:29,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:29,315 INFO L225 Difference]: With dead ends: 137875 [2023-12-18 22:06:29,315 INFO L226 Difference]: Without dead ends: 76999 [2023-12-18 22:06:29,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:29,540 INFO L413 NwaCegarLoop]: 4146 mSDtfsCounter, 4101 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4101 SdHoareTripleChecker+Valid, 4182 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:29,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4101 Valid, 4182 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 22:06:29,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76999 states. [2023-12-18 22:06:31,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76999 to 55391. [2023-12-18 22:06:31,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55391 states, 47802 states have (on average 1.4538094640391614) internal successors, (69495), 48265 states have internal predecessors, (69495), 4297 states have call successors, (4297), 2906 states have call predecessors, (4297), 3290 states have return successors, (6802), 4251 states have call predecessors, (6802), 4297 states have call successors, (6802) [2023-12-18 22:06:31,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55391 states to 55391 states and 80594 transitions. [2023-12-18 22:06:31,602 INFO L78 Accepts]: Start accepts. Automaton has 55391 states and 80594 transitions. Word has length 165 [2023-12-18 22:06:31,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:31,602 INFO L495 AbstractCegarLoop]: Abstraction has 55391 states and 80594 transitions. [2023-12-18 22:06:31,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-18 22:06:31,603 INFO L276 IsEmpty]: Start isEmpty. Operand 55391 states and 80594 transitions. [2023-12-18 22:06:31,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-18 22:06:31,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:31,697 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:06:31,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-18 22:06:31,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-18 22:06:31,902 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:31,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:31,902 INFO L85 PathProgramCache]: Analyzing trace with hash 595683337, now seen corresponding path program 1 times [2023-12-18 22:06:31,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:31,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943695924] [2023-12-18 22:06:31,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:31,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:31,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:31,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:31,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:31,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:31,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:31,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-18 22:06:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:31,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-18 22:06:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:32,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:32,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-18 22:06:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:32,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:32,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-18 22:06:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:32,015 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-18 22:06:32,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:32,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943695924] [2023-12-18 22:06:32,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943695924] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 22:06:32,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576739156] [2023-12-18 22:06:32,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:32,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:06:32,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:06:32,016 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 22:06:32,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-18 22:06:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:32,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-18 22:06:32,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 22:06:32,155 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-18 22:06:32,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 22:06:32,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576739156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:32,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-18 22:06:32,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-18 22:06:32,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147264605] [2023-12-18 22:06:32,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:32,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 22:06:32,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:32,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 22:06:32,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:32,156 INFO L87 Difference]: Start difference. First operand 55391 states and 80594 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-18 22:06:33,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:33,844 INFO L93 Difference]: Finished difference Result 95370 states and 137683 transitions. [2023-12-18 22:06:33,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 22:06:33,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 165 [2023-12-18 22:06:33,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:33,980 INFO L225 Difference]: With dead ends: 95370 [2023-12-18 22:06:33,981 INFO L226 Difference]: Without dead ends: 58865 [2023-12-18 22:06:34,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:34,026 INFO L413 NwaCegarLoop]: 4191 mSDtfsCounter, 4108 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4108 SdHoareTripleChecker+Valid, 4371 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:34,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4108 Valid, 4371 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 22:06:34,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58865 states. [2023-12-18 22:06:35,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58865 to 58681. [2023-12-18 22:06:35,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58681 states, 50744 states have (on average 1.42852356928898) internal successors, (72489), 51207 states have internal predecessors, (72489), 4395 states have call successors, (4395), 3156 states have call predecessors, (4395), 3540 states have return successors, (7150), 4349 states have call predecessors, (7150), 4395 states have call successors, (7150) [2023-12-18 22:06:35,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58681 states to 58681 states and 84034 transitions. [2023-12-18 22:06:35,853 INFO L78 Accepts]: Start accepts. Automaton has 58681 states and 84034 transitions. Word has length 165 [2023-12-18 22:06:35,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:35,853 INFO L495 AbstractCegarLoop]: Abstraction has 58681 states and 84034 transitions. [2023-12-18 22:06:35,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-18 22:06:35,853 INFO L276 IsEmpty]: Start isEmpty. Operand 58681 states and 84034 transitions. [2023-12-18 22:06:35,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-18 22:06:35,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:35,933 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:06:35,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-18 22:06:36,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:06:36,138 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:36,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:36,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1950708912, now seen corresponding path program 1 times [2023-12-18 22:06:36,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:36,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577018749] [2023-12-18 22:06:36,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:36,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:36,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:36,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:36,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:36,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:36,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:36,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-18 22:06:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:36,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:36,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-18 22:06:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:36,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-18 22:06:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:36,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:36,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-18 22:06:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:36,247 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-18 22:06:36,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:36,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577018749] [2023-12-18 22:06:36,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577018749] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 22:06:36,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17445383] [2023-12-18 22:06:36,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:36,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:06:36,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:06:36,249 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 22:06:36,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-18 22:06:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:36,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-18 22:06:36,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 22:06:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-18 22:06:36,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 22:06:36,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17445383] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:36,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-18 22:06:36,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-18 22:06:36,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122642276] [2023-12-18 22:06:36,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:36,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 22:06:36,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:36,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 22:06:36,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:36,379 INFO L87 Difference]: Start difference. First operand 58681 states and 84034 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-18 22:06:39,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:39,426 INFO L93 Difference]: Finished difference Result 169041 states and 242726 transitions. [2023-12-18 22:06:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 22:06:39,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 166 [2023-12-18 22:06:39,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:39,715 INFO L225 Difference]: With dead ends: 169041 [2023-12-18 22:06:39,715 INFO L226 Difference]: Without dead ends: 112499 [2023-12-18 22:06:39,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:39,791 INFO L413 NwaCegarLoop]: 4319 mSDtfsCounter, 180 mSDsluCounter, 4144 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 8463 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:39,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 8463 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 22:06:39,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112499 states. [2023-12-18 22:06:43,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112499 to 112389. [2023-12-18 22:06:43,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112389 states, 97046 states have (on average 1.4113616223234342) internal successors, (136967), 97971 states have internal predecessors, (136967), 8417 states have call successors, (8417), 6156 states have call predecessors, (8417), 6924 states have return successors, (15924), 8325 states have call predecessors, (15924), 8417 states have call successors, (15924) [2023-12-18 22:06:43,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112389 states to 112389 states and 161308 transitions. [2023-12-18 22:06:43,801 INFO L78 Accepts]: Start accepts. Automaton has 112389 states and 161308 transitions. Word has length 166 [2023-12-18 22:06:43,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:43,801 INFO L495 AbstractCegarLoop]: Abstraction has 112389 states and 161308 transitions. [2023-12-18 22:06:43,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-18 22:06:43,801 INFO L276 IsEmpty]: Start isEmpty. Operand 112389 states and 161308 transitions. [2023-12-18 22:06:43,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-18 22:06:43,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:43,954 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:06:43,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-18 22:06:44,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:06:44,159 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:44,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:44,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1919212019, now seen corresponding path program 1 times [2023-12-18 22:06:44,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:44,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926712578] [2023-12-18 22:06:44,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:44,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:44,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:44,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:44,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:44,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:44,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:44,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-18 22:06:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:44,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:44,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-18 22:06:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:44,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-18 22:06:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:44,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:44,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-18 22:06:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:44,265 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-18 22:06:44,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:44,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926712578] [2023-12-18 22:06:44,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926712578] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 22:06:44,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231863280] [2023-12-18 22:06:44,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:44,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:06:44,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:06:44,266 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 22:06:44,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-18 22:06:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:44,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-18 22:06:44,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 22:06:44,435 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-18 22:06:44,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 22:06:44,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231863280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:44,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-18 22:06:44,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-18 22:06:44,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259952455] [2023-12-18 22:06:44,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:44,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 22:06:44,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:44,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 22:06:44,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:44,438 INFO L87 Difference]: Start difference. First operand 112389 states and 161308 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-18 22:06:47,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:47,466 INFO L93 Difference]: Finished difference Result 186439 states and 270979 transitions. [2023-12-18 22:06:47,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 22:06:47,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 166 [2023-12-18 22:06:47,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:47,835 INFO L225 Difference]: With dead ends: 186439 [2023-12-18 22:06:47,835 INFO L226 Difference]: Without dead ends: 97401 [2023-12-18 22:06:47,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:47,932 INFO L413 NwaCegarLoop]: 4145 mSDtfsCounter, 4097 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4097 SdHoareTripleChecker+Valid, 4180 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:47,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4097 Valid, 4180 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 22:06:47,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97401 states. [2023-12-18 22:06:50,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97401 to 71525. [2023-12-18 22:06:50,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71525 states, 62082 states have (on average 1.3804806546180857) internal successors, (85703), 62563 states have internal predecessors, (85703), 5125 states have call successors, (5125), 3932 states have call predecessors, (5125), 4316 states have return successors, (8886), 5061 states have call predecessors, (8886), 5125 states have call successors, (8886) [2023-12-18 22:06:50,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71525 states to 71525 states and 99714 transitions. [2023-12-18 22:06:50,716 INFO L78 Accepts]: Start accepts. Automaton has 71525 states and 99714 transitions. Word has length 166 [2023-12-18 22:06:50,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:06:50,716 INFO L495 AbstractCegarLoop]: Abstraction has 71525 states and 99714 transitions. [2023-12-18 22:06:50,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-18 22:06:50,716 INFO L276 IsEmpty]: Start isEmpty. Operand 71525 states and 99714 transitions. [2023-12-18 22:06:50,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-18 22:06:50,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:06:50,797 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:06:50,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-18 22:06:50,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-18 22:06:50,999 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:06:50,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:06:50,999 INFO L85 PathProgramCache]: Analyzing trace with hash -9825836, now seen corresponding path program 1 times [2023-12-18 22:06:50,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:06:50,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805306905] [2023-12-18 22:06:51,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:51,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:06:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:51,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:06:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:51,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:06:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:51,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:06:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:51,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:06:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:51,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:06:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:51,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-18 22:06:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:51,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:51,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-18 22:06:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:51,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-18 22:06:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:51,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:06:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:51,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-18 22:06:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:51,124 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-18 22:06:51,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:06:51,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805306905] [2023-12-18 22:06:51,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805306905] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 22:06:51,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440105095] [2023-12-18 22:06:51,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:06:51,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:06:51,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:06:51,137 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 22:06:51,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-18 22:06:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:06:51,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-18 22:06:51,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 22:06:51,270 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-18 22:06:51,271 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 22:06:51,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440105095] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:06:51,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-18 22:06:51,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-18 22:06:51,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144696617] [2023-12-18 22:06:51,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:06:51,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 22:06:51,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:06:51,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 22:06:51,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:51,272 INFO L87 Difference]: Start difference. First operand 71525 states and 99714 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-18 22:06:54,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:06:54,983 INFO L93 Difference]: Finished difference Result 201057 states and 282610 transitions. [2023-12-18 22:06:54,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 22:06:54,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 166 [2023-12-18 22:06:54,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:06:55,291 INFO L225 Difference]: With dead ends: 201057 [2023-12-18 22:06:55,291 INFO L226 Difference]: Without dead ends: 131683 [2023-12-18 22:06:55,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:06:55,376 INFO L413 NwaCegarLoop]: 4314 mSDtfsCounter, 166 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 8457 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:06:55,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 8457 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 22:06:55,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131683 states. [2023-12-18 22:06:59,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131683 to 131681. [2023-12-18 22:06:59,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131681 states, 113758 states have (on average 1.3656270328240652) internal successors, (155351), 114719 states have internal predecessors, (155351), 9769 states have call successors, (9769), 7384 states have call predecessors, (9769), 8152 states have return successors, (20332), 9641 states have call predecessors, (20332), 9769 states have call successors, (20332) [2023-12-18 22:07:00,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131681 states to 131681 states and 185452 transitions. [2023-12-18 22:07:00,184 INFO L78 Accepts]: Start accepts. Automaton has 131681 states and 185452 transitions. Word has length 166 [2023-12-18 22:07:00,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:07:00,184 INFO L495 AbstractCegarLoop]: Abstraction has 131681 states and 185452 transitions. [2023-12-18 22:07:00,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-18 22:07:00,184 INFO L276 IsEmpty]: Start isEmpty. Operand 131681 states and 185452 transitions. [2023-12-18 22:07:00,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-18 22:07:00,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:07:00,329 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:07:00,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-18 22:07:00,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-18 22:07:00,530 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:07:00,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:07:00,531 INFO L85 PathProgramCache]: Analyzing trace with hash 726644802, now seen corresponding path program 1 times [2023-12-18 22:07:00,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:07:00,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237264535] [2023-12-18 22:07:00,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:07:00,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:07:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:07:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:07:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:07:00,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-18 22:07:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:07:00,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-18 22:07:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:07:00,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-18 22:07:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:07:00,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-18 22:07:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:07:00,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-18 22:07:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:07:00,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:07:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:07:00,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-18 22:07:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:07:00,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-18 22:07:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:07:00,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-18 22:07:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:07:00,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-18 22:07:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:07:00,858 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-18 22:07:00,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:07:00,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237264535] [2023-12-18 22:07:00,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237264535] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 22:07:00,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121934059] [2023-12-18 22:07:00,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:07:00,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 22:07:00,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:07:00,860 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 22:07:00,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-18 22:07:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:07:00,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-18 22:07:00,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 22:07:00,970 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-18 22:07:00,971 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 22:07:00,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121934059] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:07:00,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-18 22:07:00,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-18 22:07:00,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376681870] [2023-12-18 22:07:00,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:07:00,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 22:07:00,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:07:00,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 22:07:00,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:07:00,972 INFO L87 Difference]: Start difference. First operand 131681 states and 185452 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-18 22:07:08,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:07:08,290 INFO L93 Difference]: Finished difference Result 372281 states and 531356 transitions. [2023-12-18 22:07:08,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 22:07:08,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 166 [2023-12-18 22:07:08,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:07:09,029 INFO L225 Difference]: With dead ends: 372281 [2023-12-18 22:07:09,030 INFO L226 Difference]: Without dead ends: 242767 [2023-12-18 22:07:09,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:07:09,209 INFO L413 NwaCegarLoop]: 4314 mSDtfsCounter, 168 mSDsluCounter, 4141 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 8455 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:07:09,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 8455 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 22:07:09,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242767 states.