/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/Problem05_label48+token_ring.08.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 00:42:57,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 00:42:57,727 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 00:42:57,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 00:42:57,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 00:42:57,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 00:42:57,754 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 00:42:57,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 00:42:57,754 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 00:42:57,757 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 00:42:57,757 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 00:42:57,757 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 00:42:57,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 00:42:57,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 00:42:57,759 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 00:42:57,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 00:42:57,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 00:42:57,759 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 00:42:57,760 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 00:42:57,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 00:42:57,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 00:42:57,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 00:42:57,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 00:42:57,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 00:42:57,761 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 00:42:57,761 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 00:42:57,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 00:42:57,762 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 00:42:57,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 00:42:57,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 00:42:57,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 00:42:57,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 00:42:57,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 00:42:57,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 00:42:57,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 00:42:57,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 00:42:57,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 00:42:57,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 00:42:57,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 00:42:57,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 00:42:57,764 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 00:42:57,764 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 00:42:57,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 00:42:57,765 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 00:42:57,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 00:42:57,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 00:42:57,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 00:42:57,957 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 00:42:57,958 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 00:42:57,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label48+token_ring.08.cil-1.c [2023-12-16 00:42:58,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 00:42:59,402 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 00:42:59,403 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label48+token_ring.08.cil-1.c [2023-12-16 00:42:59,445 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/939ddf581/5969feb51b0c445cae9a7cfad2ce6971/FLAG6911b02cb [2023-12-16 00:42:59,461 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/939ddf581/5969feb51b0c445cae9a7cfad2ce6971 [2023-12-16 00:42:59,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 00:42:59,464 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 00:42:59,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 00:42:59,466 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 00:42:59,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 00:42:59,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:42:59" (1/1) ... [2023-12-16 00:42:59,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cdc41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:59, skipping insertion in model container [2023-12-16 00:42:59,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:42:59" (1/1) ... [2023-12-16 00:42:59,614 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 00:43:00,891 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label48+token_ring.08.cil-1.c[375709,375722] [2023-12-16 00:43:00,913 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label48+token_ring.08.cil-1.c[383339,383352] [2023-12-16 00:43:01,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 00:43:01,094 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 00:43:01,682 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label48+token_ring.08.cil-1.c[375709,375722] [2023-12-16 00:43:01,689 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label48+token_ring.08.cil-1.c[383339,383352] [2023-12-16 00:43:01,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 00:43:01,749 INFO L206 MainTranslator]: Completed translation [2023-12-16 00:43:01,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:01 WrapperNode [2023-12-16 00:43:01,750 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 00:43:01,751 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 00:43:01,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 00:43:01,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 00:43:01,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:01" (1/1) ... [2023-12-16 00:43:01,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:01" (1/1) ... [2023-12-16 00:43:02,057 INFO L138 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12993 [2023-12-16 00:43:02,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 00:43:02,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 00:43:02,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 00:43:02,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 00:43:02,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:01" (1/1) ... [2023-12-16 00:43:02,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:01" (1/1) ... [2023-12-16 00:43:02,198 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:01" (1/1) ... [2023-12-16 00:43:02,266 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 00:43:02,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:01" (1/1) ... [2023-12-16 00:43:02,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:01" (1/1) ... [2023-12-16 00:43:02,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:01" (1/1) ... [2023-12-16 00:43:02,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:01" (1/1) ... [2023-12-16 00:43:02,495 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:01" (1/1) ... [2023-12-16 00:43:02,515 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:01" (1/1) ... [2023-12-16 00:43:02,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 00:43:02,570 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 00:43:02,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 00:43:02,571 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 00:43:02,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:01" (1/1) ... [2023-12-16 00:43:02,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 00:43:02,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:43:02,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 00:43:02,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 00:43:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 00:43:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 00:43:02,621 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 00:43:02,622 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 00:43:02,622 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 00:43:02,622 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 00:43:02,622 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 00:43:02,623 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 00:43:02,623 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 00:43:02,623 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 00:43:02,623 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 00:43:02,623 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 00:43:02,623 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 00:43:02,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 00:43:02,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 00:43:02,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 00:43:02,729 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 00:43:02,730 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 00:43:08,072 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 00:43:08,235 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 00:43:08,235 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-12-16 00:43:08,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:43:08 BoogieIcfgContainer [2023-12-16 00:43:08,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 00:43:08,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 00:43:08,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 00:43:08,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 00:43:08,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:42:59" (1/3) ... [2023-12-16 00:43:08,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7832ec98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:43:08, skipping insertion in model container [2023-12-16 00:43:08,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:01" (2/3) ... [2023-12-16 00:43:08,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7832ec98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:43:08, skipping insertion in model container [2023-12-16 00:43:08,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:43:08" (3/3) ... [2023-12-16 00:43:08,243 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label48+token_ring.08.cil-1.c [2023-12-16 00:43:08,255 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 00:43:08,255 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 00:43:08,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 00:43:08,328 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;@48311ec2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 00:43:08,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 00:43:08,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 2379 states, 2348 states have (on average 1.8794718909710393) internal successors, (4413), 2351 states have internal predecessors, (4413), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 00:43:08,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 00:43:08,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:43:08,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:08,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:43:08,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:43:08,366 INFO L85 PathProgramCache]: Analyzing trace with hash 2060137260, now seen corresponding path program 1 times [2023-12-16 00:43:08,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:43:08,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420706140] [2023-12-16 00:43:08,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:43:08,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:43:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:08,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:43:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:08,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 00:43:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:08,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 00:43:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:08,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 00:43:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:08,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 00:43:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:08,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:43:08,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:43:08,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420706140] [2023-12-16 00:43:08,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420706140] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:43:08,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:43:08,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 00:43:08,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085282446] [2023-12-16 00:43:08,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:43:08,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 00:43:08,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:43:08,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 00:43:08,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 00:43:08,805 INFO L87 Difference]: Start difference. First operand has 2379 states, 2348 states have (on average 1.8794718909710393) internal successors, (4413), 2351 states have internal predecessors, (4413), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:09,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:43:09,911 INFO L93 Difference]: Finished difference Result 4844 states and 9066 transitions. [2023-12-16 00:43:09,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 00:43:09,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-16 00:43:09,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:43:09,929 INFO L225 Difference]: With dead ends: 4844 [2023-12-16 00:43:09,930 INFO L226 Difference]: Without dead ends: 2465 [2023-12-16 00:43:09,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 00:43:09,938 INFO L413 NwaCegarLoop]: 4181 mSDtfsCounter, 695 mSDsluCounter, 12116 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 16297 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 00:43:09,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 16297 Invalid, 806 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 00:43:09,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2023-12-16 00:43:10,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2375. [2023-12-16 00:43:10,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2375 states, 2345 states have (on average 1.8426439232409382) internal successors, (4321), 2347 states have internal predecessors, (4321), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 00:43:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 4365 transitions. [2023-12-16 00:43:10,018 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 4365 transitions. Word has length 121 [2023-12-16 00:43:10,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:43:10,018 INFO L495 AbstractCegarLoop]: Abstraction has 2375 states and 4365 transitions. [2023-12-16 00:43:10,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:10,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 4365 transitions. [2023-12-16 00:43:10,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 00:43:10,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:43:10,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:10,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 00:43:10,021 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:43:10,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:43:10,022 INFO L85 PathProgramCache]: Analyzing trace with hash 58250990, now seen corresponding path program 1 times [2023-12-16 00:43:10,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:43:10,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904137828] [2023-12-16 00:43:10,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:43:10,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:43:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:10,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:43:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:10,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 00:43:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:10,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 00:43:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:10,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 00:43:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:10,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 00:43:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:43:10,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:43:10,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904137828] [2023-12-16 00:43:10,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904137828] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:43:10,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:43:10,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 00:43:10,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869787109] [2023-12-16 00:43:10,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:43:10,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 00:43:10,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:43:10,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 00:43:10,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 00:43:10,207 INFO L87 Difference]: Start difference. First operand 2375 states and 4365 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:11,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:43:11,851 INFO L93 Difference]: Finished difference Result 3046 states and 5475 transitions. [2023-12-16 00:43:11,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 00:43:11,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 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 121 [2023-12-16 00:43:11,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:43:11,861 INFO L225 Difference]: With dead ends: 3046 [2023-12-16 00:43:11,861 INFO L226 Difference]: Without dead ends: 2806 [2023-12-16 00:43:11,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:43:11,863 INFO L413 NwaCegarLoop]: 4154 mSDtfsCounter, 4998 mSDsluCounter, 12445 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5013 SdHoareTripleChecker+Valid, 16599 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:43:11,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5013 Valid, 16599 Invalid, 1714 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [92 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 00:43:11,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2023-12-16 00:43:11,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2627. [2023-12-16 00:43:11,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2573 states have (on average 1.8239409249902838) internal successors, (4693), 2576 states have internal predecessors, (4693), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2023-12-16 00:43:11,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4774 transitions. [2023-12-16 00:43:11,915 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4774 transitions. Word has length 121 [2023-12-16 00:43:11,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:43:11,915 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 4774 transitions. [2023-12-16 00:43:11,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:11,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4774 transitions. [2023-12-16 00:43:11,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 00:43:11,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:43:11,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:11,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 00:43:11,917 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:43:11,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:43:11,918 INFO L85 PathProgramCache]: Analyzing trace with hash 603539502, now seen corresponding path program 1 times [2023-12-16 00:43:11,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:43:11,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045322781] [2023-12-16 00:43:11,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:43:11,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:43:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:11,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:43:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:12,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 00:43:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:12,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 00:43:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:12,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 00:43:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:12,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 00:43:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:12,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:43:12,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:43:12,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045322781] [2023-12-16 00:43:12,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045322781] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:43:12,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:43:12,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:43:12,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866188627] [2023-12-16 00:43:12,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:43:12,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:43:12,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:43:12,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:43:12,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:43:12,090 INFO L87 Difference]: Start difference. First operand 2627 states and 4774 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:14,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:43:14,429 INFO L93 Difference]: Finished difference Result 3651 states and 6465 transitions. [2023-12-16 00:43:14,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:43:14,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-16 00:43:14,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:43:14,440 INFO L225 Difference]: With dead ends: 3651 [2023-12-16 00:43:14,440 INFO L226 Difference]: Without dead ends: 3159 [2023-12-16 00:43:14,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:43:14,446 INFO L413 NwaCegarLoop]: 4300 mSDtfsCounter, 5019 mSDsluCounter, 16941 mSDsCounter, 0 mSdLazyCounter, 2638 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5034 SdHoareTripleChecker+Valid, 21241 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 00:43:14,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5034 Valid, 21241 Invalid, 2691 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 2638 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 00:43:14,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2023-12-16 00:43:14,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 2860. [2023-12-16 00:43:14,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2860 states, 2782 states have (on average 1.8069734004313445) internal successors, (5027), 2786 states have internal predecessors, (5027), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2023-12-16 00:43:14,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 5144 transitions. [2023-12-16 00:43:14,514 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 5144 transitions. Word has length 121 [2023-12-16 00:43:14,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:43:14,515 INFO L495 AbstractCegarLoop]: Abstraction has 2860 states and 5144 transitions. [2023-12-16 00:43:14,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:14,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 5144 transitions. [2023-12-16 00:43:14,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 00:43:14,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:43:14,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:14,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 00:43:14,518 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:43:14,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:43:14,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1429854544, now seen corresponding path program 1 times [2023-12-16 00:43:14,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:43:14,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536234227] [2023-12-16 00:43:14,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:43:14,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:43:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:14,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:43:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:14,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 00:43:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:14,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 00:43:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:14,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 00:43:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:14,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 00:43:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:14,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:43:14,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:43:14,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536234227] [2023-12-16 00:43:14,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536234227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:43:14,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:43:14,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:43:14,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965712738] [2023-12-16 00:43:14,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:43:14,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:43:14,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:43:14,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:43:14,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:43:14,695 INFO L87 Difference]: Start difference. First operand 2860 states and 5144 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:16,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:43:16,677 INFO L93 Difference]: Finished difference Result 4537 states and 7907 transitions. [2023-12-16 00:43:16,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:43:16,685 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-16 00:43:16,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:43:16,701 INFO L225 Difference]: With dead ends: 4537 [2023-12-16 00:43:16,701 INFO L226 Difference]: Without dead ends: 3812 [2023-12-16 00:43:16,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:43:16,712 INFO L413 NwaCegarLoop]: 4163 mSDtfsCounter, 5097 mSDsluCounter, 16578 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5112 SdHoareTripleChecker+Valid, 20741 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:43:16,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5112 Valid, 20741 Invalid, 2271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2188 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 00:43:16,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3812 states. [2023-12-16 00:43:16,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3812 to 3327. [2023-12-16 00:43:16,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3327 states, 3201 states have (on average 1.7794439237738207) internal successors, (5696), 3207 states have internal predecessors, (5696), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2023-12-16 00:43:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 5889 transitions. [2023-12-16 00:43:16,848 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 5889 transitions. Word has length 121 [2023-12-16 00:43:16,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:43:16,848 INFO L495 AbstractCegarLoop]: Abstraction has 3327 states and 5889 transitions. [2023-12-16 00:43:16,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:16,849 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 5889 transitions. [2023-12-16 00:43:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 00:43:16,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:43:16,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:16,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 00:43:16,851 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:43:16,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:43:16,851 INFO L85 PathProgramCache]: Analyzing trace with hash 998404078, now seen corresponding path program 1 times [2023-12-16 00:43:16,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:43:16,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131772073] [2023-12-16 00:43:16,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:43:16,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:43:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:16,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:43:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:16,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 00:43:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:16,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 00:43:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:16,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 00:43:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:16,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 00:43:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:17,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:43:17,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:43:17,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131772073] [2023-12-16 00:43:17,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131772073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:43:17,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:43:17,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:43:17,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064312955] [2023-12-16 00:43:17,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:43:17,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:43:17,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:43:17,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:43:17,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:43:17,009 INFO L87 Difference]: Start difference. First operand 3327 states and 5889 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:18,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:43:18,074 INFO L93 Difference]: Finished difference Result 4994 states and 8645 transitions. [2023-12-16 00:43:18,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:43:18,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-16 00:43:18,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:43:18,086 INFO L225 Difference]: With dead ends: 4994 [2023-12-16 00:43:18,086 INFO L226 Difference]: Without dead ends: 3802 [2023-12-16 00:43:18,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:43:18,090 INFO L413 NwaCegarLoop]: 4141 mSDtfsCounter, 4837 mSDsluCounter, 12312 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4853 SdHoareTripleChecker+Valid, 16453 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 00:43:18,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4853 Valid, 16453 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 00:43:18,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2023-12-16 00:43:18,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3327. [2023-12-16 00:43:18,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3327 states, 3201 states have (on average 1.7778819119025304) internal successors, (5691), 3207 states have internal predecessors, (5691), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2023-12-16 00:43:18,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 5884 transitions. [2023-12-16 00:43:18,179 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 5884 transitions. Word has length 121 [2023-12-16 00:43:18,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:43:18,179 INFO L495 AbstractCegarLoop]: Abstraction has 3327 states and 5884 transitions. [2023-12-16 00:43:18,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:18,179 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 5884 transitions. [2023-12-16 00:43:18,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 00:43:18,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:43:18,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:18,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 00:43:18,181 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:43:18,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:43:18,182 INFO L85 PathProgramCache]: Analyzing trace with hash -308738320, now seen corresponding path program 1 times [2023-12-16 00:43:18,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:43:18,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956758445] [2023-12-16 00:43:18,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:43:18,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:43:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:18,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:43:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:18,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 00:43:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 00:43:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:18,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 00:43:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:18,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 00:43:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:18,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:43:18,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:43:18,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956758445] [2023-12-16 00:43:18,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956758445] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:43:18,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:43:18,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:43:18,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308857241] [2023-12-16 00:43:18,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:43:18,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:43:18,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:43:18,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:43:18,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:43:18,347 INFO L87 Difference]: Start difference. First operand 3327 states and 5884 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:19,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:43:19,329 INFO L93 Difference]: Finished difference Result 4983 states and 8609 transitions. [2023-12-16 00:43:19,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:43:19,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-16 00:43:19,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:43:19,342 INFO L225 Difference]: With dead ends: 4983 [2023-12-16 00:43:19,342 INFO L226 Difference]: Without dead ends: 3791 [2023-12-16 00:43:19,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:43:19,347 INFO L413 NwaCegarLoop]: 4141 mSDtfsCounter, 4833 mSDsluCounter, 12312 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4849 SdHoareTripleChecker+Valid, 16453 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 00:43:19,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4849 Valid, 16453 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 00:43:19,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3791 states. [2023-12-16 00:43:19,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3791 to 3327. [2023-12-16 00:43:19,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3327 states, 3201 states have (on average 1.7763199000312402) internal successors, (5686), 3207 states have internal predecessors, (5686), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2023-12-16 00:43:19,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 5879 transitions. [2023-12-16 00:43:19,433 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 5879 transitions. Word has length 121 [2023-12-16 00:43:19,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:43:19,433 INFO L495 AbstractCegarLoop]: Abstraction has 3327 states and 5879 transitions. [2023-12-16 00:43:19,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:19,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 5879 transitions. [2023-12-16 00:43:19,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 00:43:19,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:43:19,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:19,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 00:43:19,436 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:43:19,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:43:19,436 INFO L85 PathProgramCache]: Analyzing trace with hash 722302578, now seen corresponding path program 1 times [2023-12-16 00:43:19,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:43:19,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107764731] [2023-12-16 00:43:19,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:43:19,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:43:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:19,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:43:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:19,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 00:43:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:19,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 00:43:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:19,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 00:43:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:19,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 00:43:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:19,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:43:19,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:43:19,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107764731] [2023-12-16 00:43:19,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107764731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:43:19,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:43:19,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:43:19,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506427156] [2023-12-16 00:43:19,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:43:19,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:43:19,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:43:19,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:43:19,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:43:19,658 INFO L87 Difference]: Start difference. First operand 3327 states and 5879 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:21,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:43:21,670 INFO L93 Difference]: Finished difference Result 6219 states and 10582 transitions. [2023-12-16 00:43:21,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:43:21,671 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-16 00:43:21,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:43:21,698 INFO L225 Difference]: With dead ends: 6219 [2023-12-16 00:43:21,698 INFO L226 Difference]: Without dead ends: 5027 [2023-12-16 00:43:21,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:43:21,703 INFO L413 NwaCegarLoop]: 4298 mSDtfsCounter, 5002 mSDsluCounter, 16941 mSDsCounter, 0 mSdLazyCounter, 2559 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5017 SdHoareTripleChecker+Valid, 21239 SdHoareTripleChecker+Invalid, 2614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 00:43:21,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5017 Valid, 21239 Invalid, 2614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2559 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 00:43:21,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5027 states. [2023-12-16 00:43:21,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5027 to 4276. [2023-12-16 00:43:21,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4054 states have (on average 1.735816477553034) internal successors, (7037), 4064 states have internal predecessors, (7037), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2023-12-16 00:43:21,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7388 transitions. [2023-12-16 00:43:21,815 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7388 transitions. Word has length 121 [2023-12-16 00:43:21,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:43:21,816 INFO L495 AbstractCegarLoop]: Abstraction has 4276 states and 7388 transitions. [2023-12-16 00:43:21,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:21,816 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7388 transitions. [2023-12-16 00:43:21,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 00:43:21,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:43:21,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:21,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 00:43:21,818 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:43:21,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:43:21,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1184100688, now seen corresponding path program 1 times [2023-12-16 00:43:21,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:43:21,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274504280] [2023-12-16 00:43:21,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:43:21,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:43:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:21,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:43:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:21,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 00:43:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:21,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 00:43:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:21,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 00:43:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:21,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 00:43:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:21,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:43:21,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:43:21,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274504280] [2023-12-16 00:43:21,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274504280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:43:21,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:43:21,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:43:21,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195553935] [2023-12-16 00:43:21,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:43:21,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:43:21,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:43:21,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:43:21,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:43:21,969 INFO L87 Difference]: Start difference. First operand 4276 states and 7388 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:23,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:43:23,072 INFO L93 Difference]: Finished difference Result 7177 states and 12134 transitions. [2023-12-16 00:43:23,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:43:23,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-16 00:43:23,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:43:23,086 INFO L225 Difference]: With dead ends: 7177 [2023-12-16 00:43:23,086 INFO L226 Difference]: Without dead ends: 5036 [2023-12-16 00:43:23,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:43:23,092 INFO L413 NwaCegarLoop]: 4141 mSDtfsCounter, 4724 mSDsluCounter, 16388 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4740 SdHoareTripleChecker+Valid, 20529 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 00:43:23,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4740 Valid, 20529 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 00:43:23,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5036 states. [2023-12-16 00:43:23,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5036 to 4276. [2023-12-16 00:43:23,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4054 states have (on average 1.7335964479526393) internal successors, (7028), 4064 states have internal predecessors, (7028), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2023-12-16 00:43:23,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7379 transitions. [2023-12-16 00:43:23,259 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7379 transitions. Word has length 121 [2023-12-16 00:43:23,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:43:23,259 INFO L495 AbstractCegarLoop]: Abstraction has 4276 states and 7379 transitions. [2023-12-16 00:43:23,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:23,260 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7379 transitions. [2023-12-16 00:43:23,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 00:43:23,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:43:23,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:23,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 00:43:23,262 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:43:23,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:43:23,262 INFO L85 PathProgramCache]: Analyzing trace with hash 416970418, now seen corresponding path program 1 times [2023-12-16 00:43:23,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:43:23,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588299097] [2023-12-16 00:43:23,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:43:23,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:43:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:23,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:43:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:23,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 00:43:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:23,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 00:43:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:23,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 00:43:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:23,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 00:43:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:23,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:43:23,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:43:23,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588299097] [2023-12-16 00:43:23,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588299097] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:43:23,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:43:23,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:43:23,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700100070] [2023-12-16 00:43:23,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:43:23,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:43:23,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:43:23,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:43:23,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:43:23,401 INFO L87 Difference]: Start difference. First operand 4276 states and 7379 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:25,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:43:25,436 INFO L93 Difference]: Finished difference Result 9610 states and 16003 transitions. [2023-12-16 00:43:25,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:43:25,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-16 00:43:25,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:43:25,456 INFO L225 Difference]: With dead ends: 9610 [2023-12-16 00:43:25,456 INFO L226 Difference]: Without dead ends: 7469 [2023-12-16 00:43:25,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:43:25,464 INFO L413 NwaCegarLoop]: 4298 mSDtfsCounter, 4994 mSDsluCounter, 16941 mSDsCounter, 0 mSdLazyCounter, 2521 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5009 SdHoareTripleChecker+Valid, 21239 SdHoareTripleChecker+Invalid, 2576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 00:43:25,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5009 Valid, 21239 Invalid, 2576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2521 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 00:43:25,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7469 states. [2023-12-16 00:43:25,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7469 to 6184. [2023-12-16 00:43:25,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6184 states, 5770 states have (on average 1.6863084922010398) internal successors, (9730), 5788 states have internal predecessors, (9730), 294 states have call successors, (294), 102 states have call predecessors, (294), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2023-12-16 00:43:25,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6184 states to 6184 states and 10415 transitions. [2023-12-16 00:43:25,630 INFO L78 Accepts]: Start accepts. Automaton has 6184 states and 10415 transitions. Word has length 121 [2023-12-16 00:43:25,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:43:25,630 INFO L495 AbstractCegarLoop]: Abstraction has 6184 states and 10415 transitions. [2023-12-16 00:43:25,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:25,630 INFO L276 IsEmpty]: Start isEmpty. Operand 6184 states and 10415 transitions. [2023-12-16 00:43:25,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 00:43:25,633 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:43:25,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:25,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 00:43:25,633 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:43:25,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:43:25,634 INFO L85 PathProgramCache]: Analyzing trace with hash -639760784, now seen corresponding path program 1 times [2023-12-16 00:43:25,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:43:25,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067395680] [2023-12-16 00:43:25,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:43:25,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:43:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:25,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:43:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:25,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 00:43:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:25,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 00:43:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:25,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 00:43:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:25,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 00:43:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:25,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:43:25,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:43:25,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067395680] [2023-12-16 00:43:25,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067395680] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:43:25,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:43:25,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:43:25,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558811417] [2023-12-16 00:43:25,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:43:25,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:43:25,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:43:25,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:43:25,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:43:25,855 INFO L87 Difference]: Start difference. First operand 6184 states and 10415 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:28,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:43:28,165 INFO L93 Difference]: Finished difference Result 18072 states and 29651 transitions. [2023-12-16 00:43:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 00:43:28,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-16 00:43:28,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:43:28,204 INFO L225 Difference]: With dead ends: 18072 [2023-12-16 00:43:28,204 INFO L226 Difference]: Without dead ends: 14023 [2023-12-16 00:43:28,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 00:43:28,220 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 5287 mSDsluCounter, 16936 mSDsCounter, 0 mSdLazyCounter, 2498 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5311 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:43:28,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5311 Valid, 21232 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2498 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 00:43:28,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14023 states. [2023-12-16 00:43:28,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14023 to 9981. [2023-12-16 00:43:28,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9199 states have (on average 1.6453962387216001) internal successors, (15136), 9233 states have internal predecessors, (15136), 550 states have call successors, (550), 198 states have call predecessors, (550), 230 states have return successors, (825), 581 states have call predecessors, (825), 550 states have call successors, (825) [2023-12-16 00:43:28,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 16511 transitions. [2023-12-16 00:43:28,613 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 16511 transitions. Word has length 121 [2023-12-16 00:43:28,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:43:28,614 INFO L495 AbstractCegarLoop]: Abstraction has 9981 states and 16511 transitions. [2023-12-16 00:43:28,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:28,614 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 16511 transitions. [2023-12-16 00:43:28,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 00:43:28,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:43:28,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:28,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 00:43:28,619 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:43:28,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:43:28,620 INFO L85 PathProgramCache]: Analyzing trace with hash 711624434, now seen corresponding path program 1 times [2023-12-16 00:43:28,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:43:28,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552345002] [2023-12-16 00:43:28,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:43:28,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:43:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:28,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:43:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:28,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 00:43:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:28,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 00:43:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:28,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 00:43:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:28,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 00:43:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:28,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:43:28,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:43:28,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552345002] [2023-12-16 00:43:28,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552345002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:43:28,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:43:28,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:43:28,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301741833] [2023-12-16 00:43:28,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:43:28,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:43:28,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:43:28,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:43:28,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:43:28,767 INFO L87 Difference]: Start difference. First operand 9981 states and 16511 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:31,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:43:31,350 INFO L93 Difference]: Finished difference Result 32883 states and 53741 transitions. [2023-12-16 00:43:31,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 00:43:31,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-16 00:43:31,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:43:31,430 INFO L225 Difference]: With dead ends: 32883 [2023-12-16 00:43:31,430 INFO L226 Difference]: Without dead ends: 25037 [2023-12-16 00:43:31,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 00:43:31,459 INFO L413 NwaCegarLoop]: 4189 mSDtfsCounter, 5120 mSDsluCounter, 16600 mSDsCounter, 0 mSdLazyCounter, 2636 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5134 SdHoareTripleChecker+Valid, 20789 SdHoareTripleChecker+Invalid, 2715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 00:43:31,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5134 Valid, 20789 Invalid, 2715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2636 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 00:43:31,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25037 states. [2023-12-16 00:43:32,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25037 to 17414. [2023-12-16 00:43:32,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17414 states, 15912 states have (on average 1.6165158371040724) internal successors, (25722), 15978 states have internal predecessors, (25722), 1046 states have call successors, (1046), 390 states have call predecessors, (1046), 454 states have return successors, (1839), 1109 states have call predecessors, (1839), 1046 states have call successors, (1839) [2023-12-16 00:43:32,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17414 states to 17414 states and 28607 transitions. [2023-12-16 00:43:32,155 INFO L78 Accepts]: Start accepts. Automaton has 17414 states and 28607 transitions. Word has length 121 [2023-12-16 00:43:32,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:43:32,156 INFO L495 AbstractCegarLoop]: Abstraction has 17414 states and 28607 transitions. [2023-12-16 00:43:32,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:32,156 INFO L276 IsEmpty]: Start isEmpty. Operand 17414 states and 28607 transitions. [2023-12-16 00:43:32,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 00:43:32,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:43:32,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:32,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 00:43:32,166 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:43:32,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:43:32,166 INFO L85 PathProgramCache]: Analyzing trace with hash -907350480, now seen corresponding path program 1 times [2023-12-16 00:43:32,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:43:32,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135641157] [2023-12-16 00:43:32,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:43:32,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:43:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:32,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:43:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 00:43:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:32,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 00:43:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:32,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 00:43:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:32,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 00:43:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:32,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:43:32,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:43:32,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135641157] [2023-12-16 00:43:32,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135641157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:43:32,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:43:32,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:43:32,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344834289] [2023-12-16 00:43:32,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:43:32,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:43:32,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:43:32,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:43:32,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:43:32,301 INFO L87 Difference]: Start difference. First operand 17414 states and 28607 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:35,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:43:35,263 INFO L93 Difference]: Finished difference Result 61578 states and 100971 transitions. [2023-12-16 00:43:35,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 00:43:35,264 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-16 00:43:35,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:43:35,410 INFO L225 Difference]: With dead ends: 61578 [2023-12-16 00:43:35,411 INFO L226 Difference]: Without dead ends: 46299 [2023-12-16 00:43:35,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 00:43:35,466 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 5221 mSDsluCounter, 16936 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5245 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 2525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:43:35,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5245 Valid, 21232 Invalid, 2525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 00:43:35,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46299 states. [2023-12-16 00:43:36,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46299 to 32439. [2023-12-16 00:43:36,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32439 states, 29529 states have (on average 1.598835043516543) internal successors, (47212), 29659 states have internal predecessors, (47212), 2006 states have call successors, (2006), 774 states have call predecessors, (2006), 902 states have return successors, (4321), 2133 states have call predecessors, (4321), 2006 states have call successors, (4321) [2023-12-16 00:43:36,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32439 states to 32439 states and 53539 transitions. [2023-12-16 00:43:36,801 INFO L78 Accepts]: Start accepts. Automaton has 32439 states and 53539 transitions. Word has length 121 [2023-12-16 00:43:36,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:43:36,801 INFO L495 AbstractCegarLoop]: Abstraction has 32439 states and 53539 transitions. [2023-12-16 00:43:36,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:36,802 INFO L276 IsEmpty]: Start isEmpty. Operand 32439 states and 53539 transitions. [2023-12-16 00:43:36,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 00:43:36,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:43:36,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:36,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 00:43:36,818 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:43:36,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:43:36,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1790859470, now seen corresponding path program 1 times [2023-12-16 00:43:36,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:43:36,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9670255] [2023-12-16 00:43:36,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:43:36,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:43:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:36,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:43:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:36,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 00:43:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:36,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 00:43:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:36,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 00:43:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:36,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 00:43:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:36,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:43:36,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:43:36,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9670255] [2023-12-16 00:43:36,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9670255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:43:36,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:43:36,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:43:36,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602468054] [2023-12-16 00:43:36,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:43:36,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:43:36,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:43:36,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:43:36,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:43:36,946 INFO L87 Difference]: Start difference. First operand 32439 states and 53539 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:40,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:43:40,910 INFO L93 Difference]: Finished difference Result 116759 states and 193853 transitions. [2023-12-16 00:43:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 00:43:40,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-16 00:43:40,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:43:41,275 INFO L225 Difference]: With dead ends: 116759 [2023-12-16 00:43:41,275 INFO L226 Difference]: Without dead ends: 86455 [2023-12-16 00:43:41,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 00:43:41,337 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 5030 mSDsluCounter, 16936 mSDsCounter, 0 mSdLazyCounter, 2755 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5044 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 2812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 00:43:41,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5044 Valid, 21232 Invalid, 2812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2755 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 00:43:41,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86455 states. [2023-12-16 00:43:43,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86455 to 62617. [2023-12-16 00:43:43,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62617 states, 56955 states have (on average 1.5903081380036872) internal successors, (90576), 57213 states have internal predecessors, (90576), 3862 states have call successors, (3862), 1542 states have call predecessors, (3862), 1798 states have return successors, (10679), 4117 states have call predecessors, (10679), 3862 states have call successors, (10679) [2023-12-16 00:43:43,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62617 states to 62617 states and 105117 transitions. [2023-12-16 00:43:43,937 INFO L78 Accepts]: Start accepts. Automaton has 62617 states and 105117 transitions. Word has length 121 [2023-12-16 00:43:43,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:43:43,938 INFO L495 AbstractCegarLoop]: Abstraction has 62617 states and 105117 transitions. [2023-12-16 00:43:43,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:43,938 INFO L276 IsEmpty]: Start isEmpty. Operand 62617 states and 105117 transitions. [2023-12-16 00:43:43,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 00:43:43,971 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:43:43,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:43,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 00:43:43,972 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:43:43,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:43:43,972 INFO L85 PathProgramCache]: Analyzing trace with hash 563525812, now seen corresponding path program 1 times [2023-12-16 00:43:43,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:43:43,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364776100] [2023-12-16 00:43:43,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:43:43,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:43:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:44,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:43:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:44,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 00:43:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:44,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 00:43:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:44,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 00:43:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:44,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 00:43:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:43:44,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:43:44,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:43:44,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364776100] [2023-12-16 00:43:44,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364776100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:43:44,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:43:44,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:43:44,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152880201] [2023-12-16 00:43:44,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:43:44,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:43:44,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:43:44,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:43:44,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:43:44,254 INFO L87 Difference]: Start difference. First operand 62617 states and 105117 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:43:49,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:43:49,979 INFO L93 Difference]: Finished difference Result 226999 states and 384949 transitions. [2023-12-16 00:43:49,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 00:43:49,979 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-16 00:43:49,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:43:50,606 INFO L225 Difference]: With dead ends: 226999 [2023-12-16 00:43:50,606 INFO L226 Difference]: Without dead ends: 166517 [2023-12-16 00:43:50,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 00:43:50,725 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 5110 mSDsluCounter, 16936 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5134 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 2485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 00:43:50,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5134 Valid, 21232 Invalid, 2485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 00:43:50,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166517 states. Received shutdown request... [2023-12-16 00:43:52,564 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 00:43:53,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-16 00:43:55,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166517 to 122970. [2023-12-16 00:43:55,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122970 states, 111932 states have (on average 1.586266661901869) internal successors, (177554), 112446 states have internal predecessors, (177554), 7446 states have call successors, (7446), 3078 states have call predecessors, (7446), 3590 states have return successors, (27641), 7957 states have call predecessors, (27641), 7446 states have call successors, (27641) [2023-12-16 00:43:55,541 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 00:43:55,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 00:43:55,541 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 00:43:55,543 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 00:43:55,559 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:43:55,561 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 00:43:55,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:43:55 BoogieIcfgContainer [2023-12-16 00:43:55,563 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 00:43:55,563 INFO L158 Benchmark]: Toolchain (without parser) took 56099.36ms. Allocated memory was 230.7MB in the beginning and 5.1GB in the end (delta: 4.8GB). Free memory was 150.8MB in the beginning and 3.9GB in the end (delta: -3.8GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-16 00:43:55,563 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 191.9MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 00:43:55,563 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2284.73ms. Allocated memory was 230.7MB in the beginning and 342.9MB in the end (delta: 112.2MB). Free memory was 150.8MB in the beginning and 233.1MB in the end (delta: -82.3MB). Peak memory consumption was 115.4MB. Max. memory is 8.0GB. [2023-12-16 00:43:55,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 307.26ms. Allocated memory is still 342.9MB. Free memory was 233.1MB in the beginning and 155.0MB in the end (delta: 78.1MB). Peak memory consumption was 77.6MB. Max. memory is 8.0GB. [2023-12-16 00:43:55,564 INFO L158 Benchmark]: Boogie Preprocessor took 511.20ms. Allocated memory is still 342.9MB. Free memory was 155.0MB in the beginning and 164.9MB in the end (delta: -10.0MB). Peak memory consumption was 69.2MB. Max. memory is 8.0GB. [2023-12-16 00:43:55,564 INFO L158 Benchmark]: RCFGBuilder took 5665.47ms. Allocated memory was 342.9MB in the beginning and 947.9MB in the end (delta: 605.0MB). Free memory was 164.4MB in the beginning and 761.6MB in the end (delta: -597.2MB). Peak memory consumption was 397.9MB. Max. memory is 8.0GB. [2023-12-16 00:43:55,564 INFO L158 Benchmark]: TraceAbstraction took 47325.19ms. Allocated memory was 947.9MB in the beginning and 5.1GB in the end (delta: 4.1GB). Free memory was 761.1MB in the beginning and 3.9GB in the end (delta: -3.2GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2023-12-16 00:43:55,565 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 191.9MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2284.73ms. Allocated memory was 230.7MB in the beginning and 342.9MB in the end (delta: 112.2MB). Free memory was 150.8MB in the beginning and 233.1MB in the end (delta: -82.3MB). Peak memory consumption was 115.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 307.26ms. Allocated memory is still 342.9MB. Free memory was 233.1MB in the beginning and 155.0MB in the end (delta: 78.1MB). Peak memory consumption was 77.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 511.20ms. Allocated memory is still 342.9MB. Free memory was 155.0MB in the beginning and 164.9MB in the end (delta: -10.0MB). Peak memory consumption was 69.2MB. Max. memory is 8.0GB. * RCFGBuilder took 5665.47ms. Allocated memory was 342.9MB in the beginning and 947.9MB in the end (delta: 605.0MB). Free memory was 164.4MB in the beginning and 761.6MB in the end (delta: -597.2MB). Peak memory consumption was 397.9MB. Max. memory is 8.0GB. * TraceAbstraction took 47325.19ms. Allocated memory was 947.9MB in the beginning and 5.1GB in the end (delta: 4.1GB). Free memory was 761.1MB in the beginning and 3.9GB in the end (delta: -3.2GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 10986]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 10986). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2379 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 47.3s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 33.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66210 SdHoareTripleChecker+Valid, 18.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65967 mSDsluCounter, 276508 SdHoareTripleChecker+Invalid, 15.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 217318 mSDsCounter, 911 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28752 IncrementalHoareTripleChecker+Invalid, 29663 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 911 mSolverCounterUnsat, 59190 mSDtfsCounter, 28752 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 361 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62617occurred in iteration=13, InterpolantAutomatonStates: 168, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 54151 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1694 NumberOfCodeBlocks, 1694 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1680 ConstructedInterpolants, 0 QuantifiedInterpolants, 4945 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown