/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/systemc/transmitter.11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 11:21:55,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 11:21:55,811 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 11:21:55,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 11:21:55,815 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 11:21:55,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 11:21:55,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 11:21:55,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 11:21:55,829 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 11:21:55,830 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 11:21:55,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 11:21:55,830 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 11:21:55,831 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 11:21:55,831 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 11:21:55,831 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 11:21:55,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 11:21:55,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 11:21:55,832 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 11:21:55,832 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 11:21:55,832 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 11:21:55,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 11:21:55,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 11:21:55,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 11:21:55,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 11:21:55,834 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 11:21:55,834 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 11:21:55,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 11:21:55,834 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 11:21:55,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 11:21:55,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 11:21:55,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 11:21:55,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 11:21:55,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 11:21:55,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 11:21:55,835 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 11:21:55,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 11:21:55,836 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 11:21:55,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 11:21:55,836 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 11:21:55,836 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 11:21:55,837 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 11:21:55,837 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 11:21:55,837 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 11:21:55,837 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 11:21:56,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 11:21:56,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 11:21:56,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 11:21:56,072 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 11:21:56,074 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 11:21:56,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.11.cil.c [2023-12-21 11:21:57,112 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 11:21:57,271 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 11:21:57,272 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.11.cil.c [2023-12-21 11:21:57,281 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b502671e/ddb1243e3a994f19ba2ca7b3298866f2/FLAG616ddf82f [2023-12-21 11:21:57,294 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b502671e/ddb1243e3a994f19ba2ca7b3298866f2 [2023-12-21 11:21:57,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 11:21:57,297 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 11:21:57,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 11:21:57,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 11:21:57,301 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 11:21:57,301 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:21:57" (1/1) ... [2023-12-21 11:21:57,302 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6abaf731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57, skipping insertion in model container [2023-12-21 11:21:57,302 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:21:57" (1/1) ... [2023-12-21 11:21:57,338 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 11:21:57,424 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.11.cil.c[706,719] [2023-12-21 11:21:57,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 11:21:57,509 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 11:21:57,517 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.11.cil.c[706,719] [2023-12-21 11:21:57,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 11:21:57,609 INFO L206 MainTranslator]: Completed translation [2023-12-21 11:21:57,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57 WrapperNode [2023-12-21 11:21:57,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 11:21:57,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 11:21:57,611 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 11:21:57,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 11:21:57,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57" (1/1) ... [2023-12-21 11:21:57,628 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57" (1/1) ... [2023-12-21 11:21:57,667 INFO L138 Inliner]: procedures = 50, calls = 63, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 800 [2023-12-21 11:21:57,667 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 11:21:57,668 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 11:21:57,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 11:21:57,668 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 11:21:57,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57" (1/1) ... [2023-12-21 11:21:57,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57" (1/1) ... [2023-12-21 11:21:57,687 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57" (1/1) ... [2023-12-21 11:21:57,698 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]. [2023-12-21 11:21:57,698 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57" (1/1) ... [2023-12-21 11:21:57,698 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57" (1/1) ... [2023-12-21 11:21:57,713 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57" (1/1) ... [2023-12-21 11:21:57,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57" (1/1) ... [2023-12-21 11:21:57,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57" (1/1) ... [2023-12-21 11:21:57,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57" (1/1) ... [2023-12-21 11:21:57,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 11:21:57,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 11:21:57,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 11:21:57,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 11:21:57,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57" (1/1) ... [2023-12-21 11:21:57,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 11:21:57,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:21:57,773 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) [2023-12-21 11:21:57,794 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 [2023-12-21 11:21:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 11:21:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-21 11:21:57,798 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-21 11:21:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-21 11:21:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-21 11:21:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-21 11:21:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-21 11:21:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-21 11:21:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-21 11:21:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-21 11:21:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-21 11:21:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-21 11:21:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-21 11:21:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 11:21:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 11:21:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 11:21:57,909 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 11:21:57,911 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 11:21:58,352 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 11:21:58,407 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 11:21:58,407 INFO L309 CfgBuilder]: Removed 15 assume(true) statements. [2023-12-21 11:21:58,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:21:58 BoogieIcfgContainer [2023-12-21 11:21:58,407 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 11:21:58,410 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 11:21:58,410 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 11:21:58,413 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 11:21:58,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:21:57" (1/3) ... [2023-12-21 11:21:58,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f80483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:21:58, skipping insertion in model container [2023-12-21 11:21:58,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:21:57" (2/3) ... [2023-12-21 11:21:58,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f80483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:21:58, skipping insertion in model container [2023-12-21 11:21:58,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:21:58" (3/3) ... [2023-12-21 11:21:58,416 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.11.cil.c [2023-12-21 11:21:58,427 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 11:21:58,428 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 11:21:58,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 11:21:58,475 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;@1ccb1c19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 11:21:58,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 11:21:58,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 320 states, 288 states have (on average 1.7361111111111112) internal successors, (500), 290 states have internal predecessors, (500), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-21 11:21:58,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:21:58,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:21:58,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:21:58,496 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:21:58,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:21:58,509 INFO L85 PathProgramCache]: Analyzing trace with hash -342489240, now seen corresponding path program 1 times [2023-12-21 11:21:58,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:21:58,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754479857] [2023-12-21 11:21:58,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:21:58,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:21:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:21:58,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:21:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:21:58,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:21:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:21:59,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:21:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:21:59,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:21:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:21:59,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:21:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:21:59,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:21:59,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:21:59,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754479857] [2023-12-21 11:21:59,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754479857] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:21:59,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:21:59,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 11:21:59,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463822311] [2023-12-21 11:21:59,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:21:59,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 11:21:59,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:21:59,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 11:21:59,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:21:59,103 INFO L87 Difference]: Start difference. First operand has 320 states, 288 states have (on average 1.7361111111111112) internal successors, (500), 290 states have internal predecessors, (500), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 3 states have internal predecessors, (148), 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) [2023-12-21 11:22:00,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:00,614 INFO L93 Difference]: Finished difference Result 750 states and 1292 transitions. [2023-12-21 11:22:00,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 11:22:00,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 3 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:00,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:00,627 INFO L225 Difference]: With dead ends: 750 [2023-12-21 11:22:00,627 INFO L226 Difference]: Without dead ends: 436 [2023-12-21 11:22:00,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 11:22:00,644 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 889 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:00,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 570 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 11:22:00,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-12-21 11:22:00,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 318. [2023-12-21 11:22:00,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 287 states have (on average 1.6236933797909407) internal successors, (466), 288 states have internal predecessors, (466), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-21 11:22:00,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 514 transitions. [2023-12-21 11:22:00,696 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 514 transitions. Word has length 158 [2023-12-21 11:22:00,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:00,696 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 514 transitions. [2023-12-21 11:22:00,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 3 states have internal predecessors, (148), 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) [2023-12-21 11:22:00,697 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 514 transitions. [2023-12-21 11:22:00,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:00,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:00,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:00,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 11:22:00,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:00,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:00,701 INFO L85 PathProgramCache]: Analyzing trace with hash -728351642, now seen corresponding path program 1 times [2023-12-21 11:22:00,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:00,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361153500] [2023-12-21 11:22:00,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:00,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:00,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:00,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:01,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:01,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:01,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:01,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:01,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:01,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361153500] [2023-12-21 11:22:01,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361153500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:01,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:01,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 11:22:01,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038051681] [2023-12-21 11:22:01,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:01,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 11:22:01,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:01,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 11:22:01,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 11:22:01,057 INFO L87 Difference]: Start difference. First operand 318 states and 514 transitions. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 4 states have internal predecessors, (148), 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) [2023-12-21 11:22:03,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:03,327 INFO L93 Difference]: Finished difference Result 1172 states and 1948 transitions. [2023-12-21 11:22:03,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 11:22:03,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 4 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:03,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:03,334 INFO L225 Difference]: With dead ends: 1172 [2023-12-21 11:22:03,334 INFO L226 Difference]: Without dead ends: 871 [2023-12-21 11:22:03,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:22:03,336 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1341 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:03,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 958 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 11:22:03,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2023-12-21 11:22:03,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 636. [2023-12-21 11:22:03,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 579 states have (on average 1.6303972366148531) internal successors, (944), 581 states have internal predecessors, (944), 43 states have call successors, (43), 12 states have call predecessors, (43), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2023-12-21 11:22:03,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 1033 transitions. [2023-12-21 11:22:03,406 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 1033 transitions. Word has length 158 [2023-12-21 11:22:03,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:03,406 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 1033 transitions. [2023-12-21 11:22:03,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 4 states have internal predecessors, (148), 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) [2023-12-21 11:22:03,407 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 1033 transitions. [2023-12-21 11:22:03,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:03,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:03,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:03,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 11:22:03,409 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:03,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:03,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1994676027, now seen corresponding path program 1 times [2023-12-21 11:22:03,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:03,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371451600] [2023-12-21 11:22:03,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:03,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:03,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:03,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:03,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:03,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:03,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:03,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:03,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:03,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371451600] [2023-12-21 11:22:03,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371451600] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:03,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:03,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:03,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958357565] [2023-12-21 11:22:03,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:03,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:03,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:03,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:03,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:03,600 INFO L87 Difference]: Start difference. First operand 636 states and 1033 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:07,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:07,128 INFO L93 Difference]: Finished difference Result 2084 states and 3435 transitions. [2023-12-21 11:22:07,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 11:22:07,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:07,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:07,135 INFO L225 Difference]: With dead ends: 2084 [2023-12-21 11:22:07,135 INFO L226 Difference]: Without dead ends: 1465 [2023-12-21 11:22:07,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-21 11:22:07,138 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 1472 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4233 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1841 SdHoareTripleChecker+Invalid, 4292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 4233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:07,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1841 Invalid, 4292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 4233 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-21 11:22:07,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2023-12-21 11:22:07,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 930. [2023-12-21 11:22:07,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 847 states have (on average 1.6221959858323494) internal successors, (1374), 850 states have internal predecessors, (1374), 62 states have call successors, (62), 18 states have call predecessors, (62), 20 states have return successors, (67), 63 states have call predecessors, (67), 62 states have call successors, (67) [2023-12-21 11:22:07,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1503 transitions. [2023-12-21 11:22:07,176 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1503 transitions. Word has length 158 [2023-12-21 11:22:07,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:07,177 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1503 transitions. [2023-12-21 11:22:07,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:07,177 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1503 transitions. [2023-12-21 11:22:07,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:07,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:07,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:07,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 11:22:07,179 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:07,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:07,179 INFO L85 PathProgramCache]: Analyzing trace with hash 164408067, now seen corresponding path program 1 times [2023-12-21 11:22:07,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:07,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210097591] [2023-12-21 11:22:07,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:07,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:07,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:07,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:07,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:07,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:07,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:07,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:07,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:07,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210097591] [2023-12-21 11:22:07,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210097591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:07,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:07,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:07,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201531966] [2023-12-21 11:22:07,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:07,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:07,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:07,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:07,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:07,440 INFO L87 Difference]: Start difference. First operand 930 states and 1503 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:10,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:10,725 INFO L93 Difference]: Finished difference Result 3214 states and 5285 transitions. [2023-12-21 11:22:10,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 11:22:10,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:10,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:10,735 INFO L225 Difference]: With dead ends: 3214 [2023-12-21 11:22:10,736 INFO L226 Difference]: Without dead ends: 2301 [2023-12-21 11:22:10,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-21 11:22:10,744 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1470 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4229 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 4290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:10,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 1839 Invalid, 4290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 4229 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 11:22:10,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2023-12-21 11:22:10,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 1519. [2023-12-21 11:22:10,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.614884393063584) internal successors, (2235), 1389 states have internal predecessors, (2235), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2023-12-21 11:22:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2448 transitions. [2023-12-21 11:22:10,816 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2448 transitions. Word has length 158 [2023-12-21 11:22:10,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:10,816 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 2448 transitions. [2023-12-21 11:22:10,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:10,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2448 transitions. [2023-12-21 11:22:10,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:10,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:10,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:10,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 11:22:10,819 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:10,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:10,819 INFO L85 PathProgramCache]: Analyzing trace with hash 234055941, now seen corresponding path program 1 times [2023-12-21 11:22:10,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:10,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250091682] [2023-12-21 11:22:10,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:10,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:10,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:10,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:10,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:11,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:11,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:11,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:11,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:11,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250091682] [2023-12-21 11:22:11,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250091682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:11,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:11,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:11,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466355890] [2023-12-21 11:22:11,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:11,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:11,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:11,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:11,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:11,021 INFO L87 Difference]: Start difference. First operand 1519 states and 2448 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:12,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:12,445 INFO L93 Difference]: Finished difference Result 3651 states and 5990 transitions. [2023-12-21 11:22:12,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 11:22:12,445 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:12,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:12,452 INFO L225 Difference]: With dead ends: 3651 [2023-12-21 11:22:12,452 INFO L226 Difference]: Without dead ends: 2149 [2023-12-21 11:22:12,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:22:12,455 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 981 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:12,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 935 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 11:22:12,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2023-12-21 11:22:12,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 1519. [2023-12-21 11:22:12,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.611271676300578) internal successors, (2230), 1389 states have internal predecessors, (2230), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2023-12-21 11:22:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2443 transitions. [2023-12-21 11:22:12,511 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2443 transitions. Word has length 158 [2023-12-21 11:22:12,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:12,511 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 2443 transitions. [2023-12-21 11:22:12,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:12,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2443 transitions. [2023-12-21 11:22:12,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:12,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:12,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:12,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 11:22:12,514 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:12,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:12,514 INFO L85 PathProgramCache]: Analyzing trace with hash 651944643, now seen corresponding path program 1 times [2023-12-21 11:22:12,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:12,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392807867] [2023-12-21 11:22:12,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:12,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:12,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:12,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:12,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:12,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:12,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:12,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:12,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392807867] [2023-12-21 11:22:12,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392807867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:12,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:12,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:12,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142085043] [2023-12-21 11:22:12,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:12,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:12,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:12,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:12,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:12,684 INFO L87 Difference]: Start difference. First operand 1519 states and 2443 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:14,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:14,002 INFO L93 Difference]: Finished difference Result 3645 states and 5964 transitions. [2023-12-21 11:22:14,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 11:22:14,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:14,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:14,023 INFO L225 Difference]: With dead ends: 3645 [2023-12-21 11:22:14,023 INFO L226 Difference]: Without dead ends: 2143 [2023-12-21 11:22:14,026 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 [2023-12-21 11:22:14,027 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 979 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:14,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 935 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 11:22:14,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2023-12-21 11:22:14,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 1519. [2023-12-21 11:22:14,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.6076589595375723) internal successors, (2225), 1389 states have internal predecessors, (2225), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2023-12-21 11:22:14,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2438 transitions. [2023-12-21 11:22:14,078 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2438 transitions. Word has length 158 [2023-12-21 11:22:14,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:14,079 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 2438 transitions. [2023-12-21 11:22:14,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:14,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2438 transitions. [2023-12-21 11:22:14,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:14,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:14,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:14,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 11:22:14,081 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:14,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:14,081 INFO L85 PathProgramCache]: Analyzing trace with hash 2050898245, now seen corresponding path program 1 times [2023-12-21 11:22:14,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:14,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60950705] [2023-12-21 11:22:14,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:14,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:14,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:14,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:14,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:14,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:14,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:14,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:14,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:14,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60950705] [2023-12-21 11:22:14,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60950705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:14,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:14,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:14,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814316675] [2023-12-21 11:22:14,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:14,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:14,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:14,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:14,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:14,237 INFO L87 Difference]: Start difference. First operand 1519 states and 2438 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:15,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:15,656 INFO L93 Difference]: Finished difference Result 3638 states and 5936 transitions. [2023-12-21 11:22:15,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 11:22:15,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:15,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:15,663 INFO L225 Difference]: With dead ends: 3638 [2023-12-21 11:22:15,663 INFO L226 Difference]: Without dead ends: 2136 [2023-12-21 11:22:15,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:22:15,667 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 982 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 1748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:15,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 935 Invalid, 1748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1687 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 11:22:15,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2023-12-21 11:22:15,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 1519. [2023-12-21 11:22:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.6040462427745665) internal successors, (2220), 1389 states have internal predecessors, (2220), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2023-12-21 11:22:15,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2433 transitions. [2023-12-21 11:22:15,719 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2433 transitions. Word has length 158 [2023-12-21 11:22:15,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:15,720 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 2433 transitions. [2023-12-21 11:22:15,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:15,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2433 transitions. [2023-12-21 11:22:15,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:15,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:15,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:15,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 11:22:15,722 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:15,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:15,723 INFO L85 PathProgramCache]: Analyzing trace with hash 433457795, now seen corresponding path program 1 times [2023-12-21 11:22:15,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:15,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380615531] [2023-12-21 11:22:15,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:15,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:15,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:15,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:15,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:15,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:15,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:15,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:15,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:15,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380615531] [2023-12-21 11:22:15,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380615531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:15,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:15,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:15,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292059270] [2023-12-21 11:22:15,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:15,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:15,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:15,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:15,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:15,904 INFO L87 Difference]: Start difference. First operand 1519 states and 2433 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:17,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:17,200 INFO L93 Difference]: Finished difference Result 3626 states and 5898 transitions. [2023-12-21 11:22:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 11:22:17,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:17,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:17,208 INFO L225 Difference]: With dead ends: 3626 [2023-12-21 11:22:17,208 INFO L226 Difference]: Without dead ends: 2124 [2023-12-21 11:22:17,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:22:17,212 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1041 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:17,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 934 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 11:22:17,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2023-12-21 11:22:17,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 1519. [2023-12-21 11:22:17,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.6004335260115607) internal successors, (2215), 1389 states have internal predecessors, (2215), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2023-12-21 11:22:17,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2428 transitions. [2023-12-21 11:22:17,268 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2428 transitions. Word has length 158 [2023-12-21 11:22:17,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:17,268 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 2428 transitions. [2023-12-21 11:22:17,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:17,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2428 transitions. [2023-12-21 11:22:17,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:17,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:17,270 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:17,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 11:22:17,270 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:17,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:17,271 INFO L85 PathProgramCache]: Analyzing trace with hash 722277185, now seen corresponding path program 1 times [2023-12-21 11:22:17,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:17,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742681187] [2023-12-21 11:22:17,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:17,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:17,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:17,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:17,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:17,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:17,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:17,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742681187] [2023-12-21 11:22:17,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742681187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:17,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:17,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:17,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175663792] [2023-12-21 11:22:17,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:17,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:17,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:17,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:17,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:17,491 INFO L87 Difference]: Start difference. First operand 1519 states and 2428 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:20,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:20,814 INFO L93 Difference]: Finished difference Result 5348 states and 8660 transitions. [2023-12-21 11:22:20,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 11:22:20,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:20,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:20,826 INFO L225 Difference]: With dead ends: 5348 [2023-12-21 11:22:20,826 INFO L226 Difference]: Without dead ends: 3846 [2023-12-21 11:22:20,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-21 11:22:20,830 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1441 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4099 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 4160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:20,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 1839 Invalid, 4160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 4099 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-21 11:22:20,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2023-12-21 11:22:20,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 2720. [2023-12-21 11:22:20,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2720 states, 2481 states have (on average 1.5929060862555422) internal successors, (3952), 2490 states have internal predecessors, (3952), 176 states have call successors, (176), 54 states have call predecessors, (176), 62 states have return successors, (211), 183 states have call predecessors, (211), 176 states have call successors, (211) [2023-12-21 11:22:20,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 4339 transitions. [2023-12-21 11:22:20,998 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 4339 transitions. Word has length 158 [2023-12-21 11:22:20,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:20,998 INFO L495 AbstractCegarLoop]: Abstraction has 2720 states and 4339 transitions. [2023-12-21 11:22:20,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:20,999 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 4339 transitions. [2023-12-21 11:22:21,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:21,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:21,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:21,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 11:22:21,002 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:21,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:21,002 INFO L85 PathProgramCache]: Analyzing trace with hash 177404611, now seen corresponding path program 1 times [2023-12-21 11:22:21,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:21,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436313673] [2023-12-21 11:22:21,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:21,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:21,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:21,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:21,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:21,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:21,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:21,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:21,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436313673] [2023-12-21 11:22:21,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436313673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:21,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:21,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:21,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393616793] [2023-12-21 11:22:21,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:21,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:21,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:21,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:21,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:21,230 INFO L87 Difference]: Start difference. First operand 2720 states and 4339 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:24,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:24,584 INFO L93 Difference]: Finished difference Result 9681 states and 15647 transitions. [2023-12-21 11:22:24,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 11:22:24,584 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:24,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:24,619 INFO L225 Difference]: With dead ends: 9681 [2023-12-21 11:22:24,620 INFO L226 Difference]: Without dead ends: 6978 [2023-12-21 11:22:24,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-21 11:22:24,628 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1440 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4086 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 4147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:24,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 1839 Invalid, 4147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 4086 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 11:22:24,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6978 states. [2023-12-21 11:22:24,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6978 to 5119. [2023-12-21 11:22:24,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 4672 states have (on average 1.5873287671232876) internal successors, (7416), 4689 states have internal predecessors, (7416), 328 states have call successors, (328), 102 states have call predecessors, (328), 118 states have return successors, (425), 343 states have call predecessors, (425), 328 states have call successors, (425) [2023-12-21 11:22:24,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 8169 transitions. [2023-12-21 11:22:24,838 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 8169 transitions. Word has length 158 [2023-12-21 11:22:24,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:24,838 INFO L495 AbstractCegarLoop]: Abstraction has 5119 states and 8169 transitions. [2023-12-21 11:22:24,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:24,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 8169 transitions. [2023-12-21 11:22:24,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:24,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:24,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:24,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 11:22:24,843 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:24,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:24,844 INFO L85 PathProgramCache]: Analyzing trace with hash 852564737, now seen corresponding path program 1 times [2023-12-21 11:22:24,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:24,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311751184] [2023-12-21 11:22:24,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:24,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:24,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:24,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:25,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:25,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:25,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:25,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:25,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:25,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311751184] [2023-12-21 11:22:25,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311751184] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:25,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:25,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:25,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180474709] [2023-12-21 11:22:25,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:25,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:25,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:25,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:25,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:25,026 INFO L87 Difference]: Start difference. First operand 5119 states and 8169 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:28,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:28,574 INFO L93 Difference]: Finished difference Result 18338 states and 29663 transitions. [2023-12-21 11:22:28,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 11:22:28,575 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:28,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:28,621 INFO L225 Difference]: With dead ends: 18338 [2023-12-21 11:22:28,621 INFO L226 Difference]: Without dead ends: 13236 [2023-12-21 11:22:28,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-21 11:22:28,634 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1439 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4073 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 4134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:28,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 1839 Invalid, 4134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 4073 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-21 11:22:28,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13236 states. [2023-12-21 11:22:28,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13236 to 9932. [2023-12-21 11:22:29,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9932 states, 9069 states have (on average 1.5840776270812658) internal successors, (14366), 9102 states have internal predecessors, (14366), 632 states have call successors, (632), 198 states have call predecessors, (632), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2023-12-21 11:22:29,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9932 states to 9932 states and 15905 transitions. [2023-12-21 11:22:29,019 INFO L78 Accepts]: Start accepts. Automaton has 9932 states and 15905 transitions. Word has length 158 [2023-12-21 11:22:29,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:29,020 INFO L495 AbstractCegarLoop]: Abstraction has 9932 states and 15905 transitions. [2023-12-21 11:22:29,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:29,021 INFO L276 IsEmpty]: Start isEmpty. Operand 9932 states and 15905 transitions. [2023-12-21 11:22:29,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:29,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:29,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:29,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 11:22:29,033 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:29,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:29,034 INFO L85 PathProgramCache]: Analyzing trace with hash -95487229, now seen corresponding path program 1 times [2023-12-21 11:22:29,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:29,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872571028] [2023-12-21 11:22:29,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:29,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:29,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:29,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:29,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:29,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:29,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:29,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:29,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:29,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872571028] [2023-12-21 11:22:29,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872571028] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:29,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:29,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:29,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59627098] [2023-12-21 11:22:29,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:29,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:29,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:29,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:29,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:29,195 INFO L87 Difference]: Start difference. First operand 9932 states and 15905 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:30,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:30,834 INFO L93 Difference]: Finished difference Result 23160 states and 37675 transitions. [2023-12-21 11:22:30,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 11:22:30,835 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:30,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:30,875 INFO L225 Difference]: With dead ends: 23160 [2023-12-21 11:22:30,875 INFO L226 Difference]: Without dead ends: 13245 [2023-12-21 11:22:30,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:22:30,902 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 980 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:30,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 935 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1617 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 11:22:30,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13245 states. [2023-12-21 11:22:31,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13245 to 9932. [2023-12-21 11:22:31,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9932 states, 9069 states have (on average 1.580438857646929) internal successors, (14333), 9102 states have internal predecessors, (14333), 632 states have call successors, (632), 198 states have call predecessors, (632), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2023-12-21 11:22:31,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9932 states to 9932 states and 15872 transitions. [2023-12-21 11:22:31,302 INFO L78 Accepts]: Start accepts. Automaton has 9932 states and 15872 transitions. Word has length 158 [2023-12-21 11:22:31,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:31,302 INFO L495 AbstractCegarLoop]: Abstraction has 9932 states and 15872 transitions. [2023-12-21 11:22:31,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:31,303 INFO L276 IsEmpty]: Start isEmpty. Operand 9932 states and 15872 transitions. [2023-12-21 11:22:31,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:31,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:31,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:31,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 11:22:31,312 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:31,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash -680258879, now seen corresponding path program 1 times [2023-12-21 11:22:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:31,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126151946] [2023-12-21 11:22:31,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:31,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:31,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:31,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:31,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:31,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:31,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:31,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:31,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:31,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126151946] [2023-12-21 11:22:31,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126151946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:31,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:31,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:31,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30250627] [2023-12-21 11:22:31,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:31,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:31,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:31,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:31,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:31,481 INFO L87 Difference]: Start difference. First operand 9932 states and 15872 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:35,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:35,583 INFO L93 Difference]: Finished difference Result 39779 states and 64379 transitions. [2023-12-21 11:22:35,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 11:22:35,584 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:35,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:35,653 INFO L225 Difference]: With dead ends: 39779 [2023-12-21 11:22:35,653 INFO L226 Difference]: Without dead ends: 29864 [2023-12-21 11:22:35,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-12-21 11:22:35,672 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 1523 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 4057 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 4120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 4057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:35,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 1810 Invalid, 4120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 4057 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-21 11:22:35,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29864 states. [2023-12-21 11:22:36,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29864 to 19526. [2023-12-21 11:22:36,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19526 states, 17863 states have (on average 1.5796338800873313) internal successors, (28217), 17928 states have internal predecessors, (28217), 1208 states have call successors, (1208), 390 states have call predecessors, (1208), 454 states have return successors, (2001), 1271 states have call predecessors, (2001), 1208 states have call successors, (2001) [2023-12-21 11:22:36,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19526 states to 19526 states and 31426 transitions. [2023-12-21 11:22:36,466 INFO L78 Accepts]: Start accepts. Automaton has 19526 states and 31426 transitions. Word has length 158 [2023-12-21 11:22:36,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:36,466 INFO L495 AbstractCegarLoop]: Abstraction has 19526 states and 31426 transitions. [2023-12-21 11:22:36,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:36,467 INFO L276 IsEmpty]: Start isEmpty. Operand 19526 states and 31426 transitions. [2023-12-21 11:22:36,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:36,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:36,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:36,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 11:22:36,488 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:36,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:36,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1114764477, now seen corresponding path program 1 times [2023-12-21 11:22:36,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:36,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138004171] [2023-12-21 11:22:36,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:36,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:36,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:36,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:36,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:36,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:36,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:36,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:36,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:36,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138004171] [2023-12-21 11:22:36,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138004171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:36,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:36,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:36,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065090608] [2023-12-21 11:22:36,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:36,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:36,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:36,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:36,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:36,636 INFO L87 Difference]: Start difference. First operand 19526 states and 31426 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:38,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:38,714 INFO L93 Difference]: Finished difference Result 45256 states and 74026 transitions. [2023-12-21 11:22:38,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 11:22:38,714 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:38,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:38,806 INFO L225 Difference]: With dead ends: 45256 [2023-12-21 11:22:38,806 INFO L226 Difference]: Without dead ends: 25747 [2023-12-21 11:22:38,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:22:38,845 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 982 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:38,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 934 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 11:22:38,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25747 states. [2023-12-21 11:22:39,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25747 to 19526. [2023-12-21 11:22:39,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19526 states, 17863 states have (on average 1.575995073615854) internal successors, (28152), 17928 states have internal predecessors, (28152), 1208 states have call successors, (1208), 390 states have call predecessors, (1208), 454 states have return successors, (2001), 1271 states have call predecessors, (2001), 1208 states have call successors, (2001) [2023-12-21 11:22:39,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19526 states to 19526 states and 31361 transitions. [2023-12-21 11:22:39,583 INFO L78 Accepts]: Start accepts. Automaton has 19526 states and 31361 transitions. Word has length 158 [2023-12-21 11:22:39,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:39,583 INFO L495 AbstractCegarLoop]: Abstraction has 19526 states and 31361 transitions. [2023-12-21 11:22:39,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:39,584 INFO L276 IsEmpty]: Start isEmpty. Operand 19526 states and 31361 transitions. [2023-12-21 11:22:39,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:39,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:39,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:39,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 11:22:39,602 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:39,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:39,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1544422783, now seen corresponding path program 1 times [2023-12-21 11:22:39,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:39,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995774671] [2023-12-21 11:22:39,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:39,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:39,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:39,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:39,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:39,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:39,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:39,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:39,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:39,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995774671] [2023-12-21 11:22:39,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995774671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:39,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:39,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:39,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887987512] [2023-12-21 11:22:39,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:39,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:39,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:39,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:39,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:39,764 INFO L87 Difference]: Start difference. First operand 19526 states and 31361 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:44,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:44,524 INFO L93 Difference]: Finished difference Result 75847 states and 123407 transitions. [2023-12-21 11:22:44,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 11:22:44,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:44,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:44,696 INFO L225 Difference]: With dead ends: 75847 [2023-12-21 11:22:44,696 INFO L226 Difference]: Without dead ends: 56338 [2023-12-21 11:22:44,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-12-21 11:22:44,752 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1570 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 3521 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 3614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:44,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 1188 Invalid, 3614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3521 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-21 11:22:44,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56338 states. [2023-12-21 11:22:46,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56338 to 38873. [2023-12-21 11:22:46,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38873 states, 35642 states have (on average 1.57516413220358) internal successors, (56142), 35771 states have internal predecessors, (56142), 2328 states have call successors, (2328), 774 states have call predecessors, (2328), 902 states have return successors, (4643), 2455 states have call predecessors, (4643), 2328 states have call successors, (4643) [2023-12-21 11:22:46,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38873 states to 38873 states and 63113 transitions. [2023-12-21 11:22:46,782 INFO L78 Accepts]: Start accepts. Automaton has 38873 states and 63113 transitions. Word has length 158 [2023-12-21 11:22:46,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:46,782 INFO L495 AbstractCegarLoop]: Abstraction has 38873 states and 63113 transitions. [2023-12-21 11:22:46,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:46,784 INFO L276 IsEmpty]: Start isEmpty. Operand 38873 states and 63113 transitions. [2023-12-21 11:22:46,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:46,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:46,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:46,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 11:22:46,840 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:46,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:46,840 INFO L85 PathProgramCache]: Analyzing trace with hash -597384897, now seen corresponding path program 1 times [2023-12-21 11:22:46,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:46,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480628069] [2023-12-21 11:22:46,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:46,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:46,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:46,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:46,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:47,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:47,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:47,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:47,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:47,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480628069] [2023-12-21 11:22:47,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480628069] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:47,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:47,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:47,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875866116] [2023-12-21 11:22:47,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:47,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:47,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:47,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:47,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:47,015 INFO L87 Difference]: Start difference. First operand 38873 states and 63113 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:49,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:49,726 INFO L93 Difference]: Finished difference Result 89320 states and 147581 transitions. [2023-12-21 11:22:49,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 11:22:49,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:49,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:49,882 INFO L225 Difference]: With dead ends: 89320 [2023-12-21 11:22:49,882 INFO L226 Difference]: Without dead ends: 50464 [2023-12-21 11:22:49,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:22:49,967 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 980 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:49,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 934 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 11:22:49,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50464 states. [2023-12-21 11:22:51,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50464 to 38873. [2023-12-21 11:22:51,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38873 states, 35642 states have (on average 1.571544806688738) internal successors, (56013), 35771 states have internal predecessors, (56013), 2328 states have call successors, (2328), 774 states have call predecessors, (2328), 902 states have return successors, (4643), 2455 states have call predecessors, (4643), 2328 states have call successors, (4643) [2023-12-21 11:22:51,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38873 states to 38873 states and 62984 transitions. [2023-12-21 11:22:51,865 INFO L78 Accepts]: Start accepts. Automaton has 38873 states and 62984 transitions. Word has length 158 [2023-12-21 11:22:51,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:22:51,865 INFO L495 AbstractCegarLoop]: Abstraction has 38873 states and 62984 transitions. [2023-12-21 11:22:51,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:51,865 INFO L276 IsEmpty]: Start isEmpty. Operand 38873 states and 62984 transitions. [2023-12-21 11:22:51,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:22:51,896 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:22:51,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:22:51,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 11:22:51,896 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:22:51,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:22:51,896 INFO L85 PathProgramCache]: Analyzing trace with hash 264448705, now seen corresponding path program 1 times [2023-12-21 11:22:51,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:22:51,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753942985] [2023-12-21 11:22:51,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:22:51,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:22:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:51,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:22:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:52,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:22:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:52,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:22:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:52,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:22:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:52,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:22:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:22:52,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:22:52,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:22:52,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753942985] [2023-12-21 11:22:52,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753942985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:22:52,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:22:52,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:22:52,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828424830] [2023-12-21 11:22:52,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:22:52,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:22:52,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:22:52,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:22:52,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:22:52,070 INFO L87 Difference]: Start difference. First operand 38873 states and 62984 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:22:57,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:22:57,959 INFO L93 Difference]: Finished difference Result 147254 states and 241729 transitions. [2023-12-21 11:22:57,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 11:22:57,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:22:57,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:22:58,283 INFO L225 Difference]: With dead ends: 147254 [2023-12-21 11:22:58,284 INFO L226 Difference]: Without dead ends: 108398 [2023-12-21 11:22:58,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-12-21 11:22:58,367 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 1464 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 3962 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 4025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-21 11:22:58,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1810 Invalid, 4025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3962 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-21 11:22:58,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108398 states. [2023-12-21 11:23:01,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108398 to 77691. [2023-12-21 11:23:01,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77691 states, 71388 states have (on average 1.5704740292486132) internal successors, (112113), 71645 states have internal predecessors, (112113), 4504 states have call successors, (4504), 1542 states have call predecessors, (4504), 1798 states have return successors, (11321), 4759 states have call predecessors, (11321), 4504 states have call successors, (11321) [2023-12-21 11:23:01,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77691 states to 77691 states and 127938 transitions. [2023-12-21 11:23:01,757 INFO L78 Accepts]: Start accepts. Automaton has 77691 states and 127938 transitions. Word has length 158 [2023-12-21 11:23:01,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:23:01,758 INFO L495 AbstractCegarLoop]: Abstraction has 77691 states and 127938 transitions. [2023-12-21 11:23:01,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:23:01,758 INFO L276 IsEmpty]: Start isEmpty. Operand 77691 states and 127938 transitions. [2023-12-21 11:23:01,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:23:01,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:23:01,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:23:01,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 11:23:01,825 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:23:01,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:23:01,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1785960193, now seen corresponding path program 1 times [2023-12-21 11:23:01,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:23:01,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078862677] [2023-12-21 11:23:01,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:23:01,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:23:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:02,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:23:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:02,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:23:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:02,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:23:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:02,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:23:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:02,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:23:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:02,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:23:02,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:23:02,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078862677] [2023-12-21 11:23:02,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078862677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:23:02,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:23:02,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:23:02,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72598116] [2023-12-21 11:23:02,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:23:02,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:23:02,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:23:02,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:23:02,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:23:02,205 INFO L87 Difference]: Start difference. First operand 77691 states and 127938 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:23:10,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:23:10,356 INFO L93 Difference]: Finished difference Result 289942 states and 484217 transitions. [2023-12-21 11:23:10,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 11:23:10,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:23:10,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:23:11,121 INFO L225 Difference]: With dead ends: 289942 [2023-12-21 11:23:11,122 INFO L226 Difference]: Without dead ends: 212268 [2023-12-21 11:23:11,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-12-21 11:23:11,281 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 1570 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 3614 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 3678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 11:23:11,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1598 Valid, 1810 Invalid, 3678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3614 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 11:23:11,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212268 states. [2023-12-21 11:23:17,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212268 to 155324. [2023-12-21 11:23:18,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155324 states, 143005 states have (on average 1.5703157232264606) internal successors, (224563), 143518 states have internal predecessors, (224563), 8728 states have call successors, (8728), 3078 states have call predecessors, (8728), 3590 states have return successors, (28923), 9239 states have call predecessors, (28923), 8728 states have call successors, (28923) [2023-12-21 11:23:18,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155324 states to 155324 states and 262214 transitions. [2023-12-21 11:23:18,984 INFO L78 Accepts]: Start accepts. Automaton has 155324 states and 262214 transitions. Word has length 158 [2023-12-21 11:23:18,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:23:18,984 INFO L495 AbstractCegarLoop]: Abstraction has 155324 states and 262214 transitions. [2023-12-21 11:23:18,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:23:18,985 INFO L276 IsEmpty]: Start isEmpty. Operand 155324 states and 262214 transitions. [2023-12-21 11:23:19,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:23:19,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:23:19,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:23:19,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 11:23:19,138 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:23:19,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:23:19,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1297913087, now seen corresponding path program 1 times [2023-12-21 11:23:19,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:23:19,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186101202] [2023-12-21 11:23:19,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:23:19,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:23:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:19,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:23:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:19,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:23:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:23:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:19,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:23:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:19,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:23:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:23:19,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:23:19,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186101202] [2023-12-21 11:23:19,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186101202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:23:19,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:23:19,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:23:19,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686083268] [2023-12-21 11:23:19,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:23:19,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:23:19,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:23:19,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:23:19,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:23:19,294 INFO L87 Difference]: Start difference. First operand 155324 states and 262214 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:23:26,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:23:26,780 INFO L93 Difference]: Finished difference Result 353064 states and 612802 transitions. [2023-12-21 11:23:26,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 11:23:26,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:23:26,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:23:27,628 INFO L225 Difference]: With dead ends: 353064 [2023-12-21 11:23:27,628 INFO L226 Difference]: Without dead ends: 197757 [2023-12-21 11:23:28,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:23:28,040 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1121 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:23:28,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 784 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 11:23:28,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197757 states. [2023-12-21 11:23:35,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197757 to 155324. [2023-12-21 11:23:35,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155324 states, 143005 states have (on average 1.5667284360686689) internal successors, (224050), 143518 states have internal predecessors, (224050), 8728 states have call successors, (8728), 3078 states have call predecessors, (8728), 3590 states have return successors, (28923), 9239 states have call predecessors, (28923), 8728 states have call successors, (28923) [2023-12-21 11:23:36,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155324 states to 155324 states and 261701 transitions. [2023-12-21 11:23:36,394 INFO L78 Accepts]: Start accepts. Automaton has 155324 states and 261701 transitions. Word has length 158 [2023-12-21 11:23:36,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:23:36,394 INFO L495 AbstractCegarLoop]: Abstraction has 155324 states and 261701 transitions. [2023-12-21 11:23:36,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:23:36,395 INFO L276 IsEmpty]: Start isEmpty. Operand 155324 states and 261701 transitions. [2023-12-21 11:23:36,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 11:23:36,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:23:36,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:23:36,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 11:23:36,534 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:23:36,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:23:36,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1904419007, now seen corresponding path program 1 times [2023-12-21 11:23:36,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:23:36,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155619896] [2023-12-21 11:23:36,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:23:36,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:23:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:36,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:23:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:36,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 11:23:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:36,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 11:23:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:36,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 11:23:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:36,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 11:23:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:23:36,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:23:36,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:23:36,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155619896] [2023-12-21 11:23:36,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155619896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:23:36,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:23:36,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:23:36,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357768423] [2023-12-21 11:23:36,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:23:36,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:23:36,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:23:36,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:23:36,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:23:36,752 INFO L87 Difference]: Start difference. First operand 155324 states and 261701 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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) [2023-12-21 11:23:51,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:23:51,055 INFO L93 Difference]: Finished difference Result 564819 states and 967223 transitions. [2023-12-21 11:23:51,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 11:23:51,056 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2023-12-21 11:23:51,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:23:53,007 INFO L225 Difference]: With dead ends: 564819 [2023-12-21 11:23:53,007 INFO L226 Difference]: Without dead ends: 409512