/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/Problem05_label47+token_ring.12.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-18 22:31:12,757 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-18 22:31:12,793 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-18 22:31:12,796 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-18 22:31:12,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-18 22:31:12,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-18 22:31:12,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-18 22:31:12,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-18 22:31:12,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-18 22:31:12,811 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-18 22:31:12,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-18 22:31:12,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-18 22:31:12,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-18 22:31:12,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-18 22:31:12,812 INFO L153 SettingsManager]: * Use SBE=true [2023-12-18 22:31:12,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-18 22:31:12,813 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-18 22:31:12,813 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-18 22:31:12,813 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-18 22:31:12,814 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-18 22:31:12,814 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-18 22:31:12,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-18 22:31:12,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-18 22:31:12,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-18 22:31:12,815 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-18 22:31:12,815 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-18 22:31:12,815 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-18 22:31:12,816 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-18 22:31:12,816 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-18 22:31:12,816 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-18 22:31:12,816 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-18 22:31:12,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-18 22:31:12,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 22:31:12,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-18 22:31:12,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-18 22:31:12,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-18 22:31:12,817 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-18 22:31:12,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-18 22:31:12,818 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-18 22:31:12,818 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-18 22:31:12,818 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-18 22:31:12,818 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-18 22:31:12,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-18 22:31:12,819 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-18 22:31:12,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-18 22:31:12,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-18 22:31:12,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-18 22:31:12,971 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-18 22:31:12,972 INFO L274 PluginConnector]: CDTParser initialized [2023-12-18 22:31:12,973 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label47+token_ring.12.cil-2.c [2023-12-18 22:31:14,088 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-18 22:31:14,556 INFO L384 CDTParser]: Found 1 translation units. [2023-12-18 22:31:14,557 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label47+token_ring.12.cil-2.c [2023-12-18 22:31:14,645 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3be1e184f/5b6d13950e3e454d949719f337042203/FLAG9bd05cea2 [2023-12-18 22:31:14,658 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3be1e184f/5b6d13950e3e454d949719f337042203 [2023-12-18 22:31:14,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-18 22:31:14,661 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-18 22:31:14,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-18 22:31:14,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-18 22:31:14,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-18 22:31:14,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:31:14" (1/1) ... [2023-12-18 22:31:14,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72293447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:14, skipping insertion in model container [2023-12-18 22:31:14,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:31:14" (1/1) ... [2023-12-18 22:31:14,876 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-18 22:31:16,256 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label47+token_ring.12.cil-2.c[377612,377625] [2023-12-18 22:31:16,284 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label47+token_ring.12.cil-2.c[383339,383352] [2023-12-18 22:31:16,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 22:31:16,515 INFO L202 MainTranslator]: Completed pre-run [2023-12-18 22:31:17,127 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label47+token_ring.12.cil-2.c[377612,377625] [2023-12-18 22:31:17,141 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label47+token_ring.12.cil-2.c[383339,383352] [2023-12-18 22:31:17,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 22:31:17,211 INFO L206 MainTranslator]: Completed translation [2023-12-18 22:31:17,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:17 WrapperNode [2023-12-18 22:31:17,211 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-18 22:31:17,212 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-18 22:31:17,212 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-18 22:31:17,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-18 22:31:17,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:17" (1/1) ... [2023-12-18 22:31:17,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:17" (1/1) ... [2023-12-18 22:31:17,681 INFO L138 Inliner]: procedures = 68, calls = 77, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 13233 [2023-12-18 22:31:17,682 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-18 22:31:17,682 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-18 22:31:17,683 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-18 22:31:17,683 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-18 22:31:17,691 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:17" (1/1) ... [2023-12-18 22:31:17,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:17" (1/1) ... [2023-12-18 22:31:17,747 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:17" (1/1) ... [2023-12-18 22:31:17,871 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-18 22:31:17,871 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:17" (1/1) ... [2023-12-18 22:31:17,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:17" (1/1) ... [2023-12-18 22:31:18,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:17" (1/1) ... [2023-12-18 22:31:18,055 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:17" (1/1) ... [2023-12-18 22:31:18,086 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:17" (1/1) ... [2023-12-18 22:31:18,169 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:17" (1/1) ... [2023-12-18 22:31:18,256 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-18 22:31:18,257 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-18 22:31:18,257 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-18 22:31:18,257 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-18 22:31:18,257 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:17" (1/1) ... [2023-12-18 22:31:18,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 22:31:18,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:31:18,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-18 22:31:18,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-18 22:31:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-18 22:31:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-18 22:31:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-18 22:31:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-18 22:31:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-18 22:31:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-18 22:31:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-18 22:31:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-18 22:31:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-18 22:31:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-18 22:31:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-18 22:31:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-18 22:31:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-18 22:31:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-18 22:31:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-18 22:31:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-18 22:31:18,414 INFO L241 CfgBuilder]: Building ICFG [2023-12-18 22:31:18,416 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-18 22:31:24,276 INFO L282 CfgBuilder]: Performing block encoding [2023-12-18 22:31:24,344 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-18 22:31:24,344 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-12-18 22:31:24,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:31:24 BoogieIcfgContainer [2023-12-18 22:31:24,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-18 22:31:24,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-18 22:31:24,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-18 22:31:24,348 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-18 22:31:24,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:31:14" (1/3) ... [2023-12-18 22:31:24,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b7caedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:31:24, skipping insertion in model container [2023-12-18 22:31:24,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:31:17" (2/3) ... [2023-12-18 22:31:24,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b7caedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:31:24, skipping insertion in model container [2023-12-18 22:31:24,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:31:24" (3/3) ... [2023-12-18 22:31:24,350 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.12.cil-2.c [2023-12-18 22:31:24,363 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-18 22:31:24,364 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-18 22:31:24,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-18 22:31:24,421 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;@491dadf0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-18 22:31:24,422 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-18 22:31:24,430 INFO L276 IsEmpty]: Start isEmpty. Operand has 2471 states, 2436 states have (on average 1.875615763546798) internal successors, (4569), 2439 states have internal predecessors, (4569), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-18 22:31:24,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:31:24,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:31:24,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:31:24,444 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:31:24,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:31:24,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1395407095, now seen corresponding path program 1 times [2023-12-18 22:31:24,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:31:24,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438744073] [2023-12-18 22:31:24,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:31:24,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:31:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:24,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:31:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:24,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:31:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:24,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:31:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:24,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:31:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:24,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:31:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:24,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:31:24,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:31:24,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438744073] [2023-12-18 22:31:24,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438744073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:31:24,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:31:24,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-18 22:31:24,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102226849] [2023-12-18 22:31:24,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:31:24,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-18 22:31:24,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:31:24,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-18 22:31:24,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-18 22:31:24,949 INFO L87 Difference]: Start difference. First operand has 2471 states, 2436 states have (on average 1.875615763546798) internal successors, (4569), 2439 states have internal predecessors, (4569), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:26,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:31:26,831 INFO L93 Difference]: Finished difference Result 5068 states and 9466 transitions. [2023-12-18 22:31:26,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-18 22:31:26,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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 161 [2023-12-18 22:31:26,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:31:26,875 INFO L225 Difference]: With dead ends: 5068 [2023-12-18 22:31:26,875 INFO L226 Difference]: Without dead ends: 2597 [2023-12-18 22:31:26,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-18 22:31:26,892 INFO L413 NwaCegarLoop]: 4257 mSDtfsCounter, 979 mSDsluCounter, 12204 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 16461 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-18 22:31:26,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 16461 Invalid, 1126 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-18 22:31:26,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2023-12-18 22:31:26,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2467. [2023-12-18 22:31:26,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2433 states have (on average 1.8368269625976161) internal successors, (4469), 2435 states have internal predecessors, (4469), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-18 22:31:26,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 4521 transitions. [2023-12-18 22:31:26,982 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 4521 transitions. Word has length 161 [2023-12-18 22:31:26,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:31:26,982 INFO L495 AbstractCegarLoop]: Abstraction has 2467 states and 4521 transitions. [2023-12-18 22:31:26,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:26,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 4521 transitions. [2023-12-18 22:31:26,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:31:26,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:31:26,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:31:26,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-18 22:31:26,988 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:31:26,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:31:26,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2006676153, now seen corresponding path program 1 times [2023-12-18 22:31:26,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:31:26,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733637961] [2023-12-18 22:31:26,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:31:26,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:31:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:27,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:31:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:27,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:31:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:27,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:31:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:27,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:31:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:27,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:31:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:27,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:31:27,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:31:27,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733637961] [2023-12-18 22:31:27,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733637961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:31:27,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:31:27,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-18 22:31:27,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294744759] [2023-12-18 22:31:27,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:31:27,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-18 22:31:27,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:31:27,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-18 22:31:27,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-18 22:31:27,175 INFO L87 Difference]: Start difference. First operand 2467 states and 4521 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:28,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:31:28,703 INFO L93 Difference]: Finished difference Result 2930 states and 5294 transitions. [2023-12-18 22:31:28,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-18 22:31:28,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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 161 [2023-12-18 22:31:28,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:31:28,713 INFO L225 Difference]: With dead ends: 2930 [2023-12-18 22:31:28,713 INFO L226 Difference]: Without dead ends: 2597 [2023-12-18 22:31:28,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-18 22:31:28,715 INFO L413 NwaCegarLoop]: 4253 mSDtfsCounter, 967 mSDsluCounter, 12195 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 16448 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-18 22:31:28,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 16448 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-18 22:31:28,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2023-12-18 22:31:28,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2467. [2023-12-18 22:31:28,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2433 states have (on average 1.8364159473900534) internal successors, (4468), 2435 states have internal predecessors, (4468), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-18 22:31:28,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 4520 transitions. [2023-12-18 22:31:28,763 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 4520 transitions. Word has length 161 [2023-12-18 22:31:28,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:31:28,764 INFO L495 AbstractCegarLoop]: Abstraction has 2467 states and 4520 transitions. [2023-12-18 22:31:28,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 4520 transitions. [2023-12-18 22:31:28,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:31:28,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:31:28,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:31:28,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-18 22:31:28,766 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:31:28,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:31:28,767 INFO L85 PathProgramCache]: Analyzing trace with hash -965112197, now seen corresponding path program 1 times [2023-12-18 22:31:28,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:31:28,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30064921] [2023-12-18 22:31:28,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:31:28,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:31:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:28,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:31:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:28,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:31:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:28,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:31:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:29,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:31:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:29,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:31:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:29,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:31:29,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:31:29,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30064921] [2023-12-18 22:31:29,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30064921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:31:29,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:31:29,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-18 22:31:29,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604855971] [2023-12-18 22:31:29,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:31:29,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-18 22:31:29,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:31:29,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-18 22:31:29,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-18 22:31:29,019 INFO L87 Difference]: Start difference. First operand 2467 states and 4520 transitions. Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:32,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:31:32,185 INFO L93 Difference]: Finished difference Result 3402 states and 6086 transitions. [2023-12-18 22:31:32,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-18 22:31:32,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 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 161 [2023-12-18 22:31:32,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:31:32,196 INFO L225 Difference]: With dead ends: 3402 [2023-12-18 22:31:32,197 INFO L226 Difference]: Without dead ends: 3074 [2023-12-18 22:31:32,199 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 [2023-12-18 22:31:32,200 INFO L413 NwaCegarLoop]: 4221 mSDtfsCounter, 5433 mSDsluCounter, 12655 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5452 SdHoareTripleChecker+Valid, 16876 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-18 22:31:32,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5452 Valid, 16876 Invalid, 2405 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [108 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-18 22:31:32,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3074 states. [2023-12-18 22:31:32,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3074 to 2815. [2023-12-18 22:31:32,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2753 states have (on average 1.8147475481293134) internal successors, (4996), 2756 states have internal predecessors, (4996), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2023-12-18 22:31:32,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5093 transitions. [2023-12-18 22:31:32,279 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5093 transitions. Word has length 161 [2023-12-18 22:31:32,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:31:32,279 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 5093 transitions. [2023-12-18 22:31:32,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:32,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5093 transitions. [2023-12-18 22:31:32,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:31:32,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:31:32,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:31:32,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-18 22:31:32,282 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:31:32,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:31:32,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1451895109, now seen corresponding path program 1 times [2023-12-18 22:31:32,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:31:32,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420543784] [2023-12-18 22:31:32,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:31:32,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:31:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:32,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:31:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:32,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:31:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:32,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:31:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:32,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:31:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:32,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:31:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:32,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:31:32,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:31:32,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420543784] [2023-12-18 22:31:32,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420543784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:31:32,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:31:32,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:31:32,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047119398] [2023-12-18 22:31:32,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:31:32,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:31:32,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:31:32,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:31:32,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:31:32,520 INFO L87 Difference]: Start difference. First operand 2815 states and 5093 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:36,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:31:36,218 INFO L93 Difference]: Finished difference Result 4247 states and 7492 transitions. [2023-12-18 22:31:36,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:31:36,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:31:36,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:31:36,231 INFO L225 Difference]: With dead ends: 4247 [2023-12-18 22:31:36,232 INFO L226 Difference]: Without dead ends: 3571 [2023-12-18 22:31:36,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:31:36,235 INFO L413 NwaCegarLoop]: 4419 mSDtfsCounter, 5470 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3725 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5489 SdHoareTripleChecker+Valid, 21777 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-18 22:31:36,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5489 Valid, 21777 Invalid, 3786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 3725 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-18 22:31:36,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2023-12-18 22:31:36,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3136. [2023-12-18 22:31:36,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3046 states have (on average 1.7957977675640184) internal successors, (5470), 3050 states have internal predecessors, (5470), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2023-12-18 22:31:36,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 5611 transitions. [2023-12-18 22:31:36,314 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 5611 transitions. Word has length 161 [2023-12-18 22:31:36,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:31:36,315 INFO L495 AbstractCegarLoop]: Abstraction has 3136 states and 5611 transitions. [2023-12-18 22:31:36,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:36,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 5611 transitions. [2023-12-18 22:31:36,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:31:36,318 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:31:36,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:31:36,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-18 22:31:36,319 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:31:36,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:31:36,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1055202365, now seen corresponding path program 1 times [2023-12-18 22:31:36,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:31:36,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604658449] [2023-12-18 22:31:36,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:31:36,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:31:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:36,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:31:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:36,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:31:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:36,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:31:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:36,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:31:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:36,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:31:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:36,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:31:36,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:31:36,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604658449] [2023-12-18 22:31:36,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604658449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:31:36,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:31:36,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:31:36,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203105730] [2023-12-18 22:31:36,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:31:36,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:31:36,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:31:36,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:31:36,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:31:36,599 INFO L87 Difference]: Start difference. First operand 3136 states and 5611 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:39,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:31:39,932 INFO L93 Difference]: Finished difference Result 5485 states and 9538 transitions. [2023-12-18 22:31:39,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:31:39,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:31:39,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:31:39,950 INFO L225 Difference]: With dead ends: 5485 [2023-12-18 22:31:39,950 INFO L226 Difference]: Without dead ends: 4488 [2023-12-18 22:31:39,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:31:39,956 INFO L413 NwaCegarLoop]: 4230 mSDtfsCounter, 5580 mSDsluCounter, 16851 mSDsCounter, 0 mSdLazyCounter, 3091 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5599 SdHoareTripleChecker+Valid, 21081 SdHoareTripleChecker+Invalid, 3190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 3091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-18 22:31:39,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5599 Valid, 21081 Invalid, 3190 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [99 Valid, 3091 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-18 22:31:39,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4488 states. [2023-12-18 22:31:40,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4488 to 3779. [2023-12-18 22:31:40,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3779 states, 3633 states have (on average 1.766859344894027) internal successors, (6419), 3639 states have internal predecessors, (6419), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2023-12-18 22:31:40,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 6652 transitions. [2023-12-18 22:31:40,047 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 6652 transitions. Word has length 161 [2023-12-18 22:31:40,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:31:40,047 INFO L495 AbstractCegarLoop]: Abstraction has 3779 states and 6652 transitions. [2023-12-18 22:31:40,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:40,047 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 6652 transitions. [2023-12-18 22:31:40,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:31:40,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:31:40,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:31:40,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-18 22:31:40,049 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:31:40,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:31:40,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1080680837, now seen corresponding path program 1 times [2023-12-18 22:31:40,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:31:40,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826502191] [2023-12-18 22:31:40,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:31:40,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:31:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:40,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:31:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:40,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:31:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:40,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:31:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:40,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:31:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:40,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:31:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:40,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:31:40,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:31:40,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826502191] [2023-12-18 22:31:40,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826502191] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:31:40,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:31:40,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:31:40,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468465043] [2023-12-18 22:31:40,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:31:40,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:31:40,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:31:40,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:31:40,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:31:40,283 INFO L87 Difference]: Start difference. First operand 3779 states and 6652 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:42,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:31:42,298 INFO L93 Difference]: Finished difference Result 6118 states and 10572 transitions. [2023-12-18 22:31:42,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:31:42,298 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:31:42,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:31:42,314 INFO L225 Difference]: With dead ends: 6118 [2023-12-18 22:31:42,314 INFO L226 Difference]: Without dead ends: 4478 [2023-12-18 22:31:42,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:31:42,320 INFO L413 NwaCegarLoop]: 4208 mSDtfsCounter, 5039 mSDsluCounter, 16601 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5059 SdHoareTripleChecker+Valid, 20809 SdHoareTripleChecker+Invalid, 1969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-18 22:31:42,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5059 Valid, 20809 Invalid, 1969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-18 22:31:42,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4478 states. [2023-12-18 22:31:42,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4478 to 3779. [2023-12-18 22:31:42,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3779 states, 3633 states have (on average 1.7654830718414534) internal successors, (6414), 3639 states have internal predecessors, (6414), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2023-12-18 22:31:42,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 6647 transitions. [2023-12-18 22:31:42,418 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 6647 transitions. Word has length 161 [2023-12-18 22:31:42,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:31:42,418 INFO L495 AbstractCegarLoop]: Abstraction has 3779 states and 6647 transitions. [2023-12-18 22:31:42,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:42,419 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 6647 transitions. [2023-12-18 22:31:42,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:31:42,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:31:42,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:31:42,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-18 22:31:42,420 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:31:42,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:31:42,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1011032963, now seen corresponding path program 1 times [2023-12-18 22:31:42,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:31:42,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919267807] [2023-12-18 22:31:42,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:31:42,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:31:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:42,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:31:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:42,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:31:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:42,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:31:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:42,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:31:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:31:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:42,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:31:42,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:31:42,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919267807] [2023-12-18 22:31:42,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919267807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:31:42,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:31:42,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:31:42,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530714621] [2023-12-18 22:31:42,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:31:42,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:31:42,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:31:42,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:31:42,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:31:42,633 INFO L87 Difference]: Start difference. First operand 3779 states and 6647 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:44,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:31:44,171 INFO L93 Difference]: Finished difference Result 6107 states and 10536 transitions. [2023-12-18 22:31:44,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:31:44,171 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:31:44,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:31:44,184 INFO L225 Difference]: With dead ends: 6107 [2023-12-18 22:31:44,184 INFO L226 Difference]: Without dead ends: 4467 [2023-12-18 22:31:44,188 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 [2023-12-18 22:31:44,188 INFO L413 NwaCegarLoop]: 4208 mSDtfsCounter, 5188 mSDsluCounter, 12482 mSDsCounter, 0 mSdLazyCounter, 1697 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5208 SdHoareTripleChecker+Valid, 16690 SdHoareTripleChecker+Invalid, 1788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-18 22:31:44,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5208 Valid, 16690 Invalid, 1788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1697 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-18 22:31:44,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4467 states. [2023-12-18 22:31:44,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4467 to 3779. [2023-12-18 22:31:44,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3779 states, 3633 states have (on average 1.7641067987888797) internal successors, (6409), 3639 states have internal predecessors, (6409), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2023-12-18 22:31:44,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 6642 transitions. [2023-12-18 22:31:44,277 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 6642 transitions. Word has length 161 [2023-12-18 22:31:44,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:31:44,278 INFO L495 AbstractCegarLoop]: Abstraction has 3779 states and 6642 transitions. [2023-12-18 22:31:44,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:44,278 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 6642 transitions. [2023-12-18 22:31:44,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:31:44,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:31:44,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:31:44,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-18 22:31:44,280 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:31:44,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:31:44,281 INFO L85 PathProgramCache]: Analyzing trace with hash 387920639, now seen corresponding path program 1 times [2023-12-18 22:31:44,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:31:44,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005684669] [2023-12-18 22:31:44,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:31:44,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:31:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:44,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:31:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:44,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:31:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:44,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:31:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:44,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:31:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:44,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:31:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:44,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:31:44,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:31:44,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005684669] [2023-12-18 22:31:44,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005684669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:31:44,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:31:44,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:31:44,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591581631] [2023-12-18 22:31:44,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:31:44,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:31:44,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:31:44,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:31:44,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:31:44,526 INFO L87 Difference]: Start difference. First operand 3779 states and 6642 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:47,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:31:47,928 INFO L93 Difference]: Finished difference Result 7839 states and 13357 transitions. [2023-12-18 22:31:47,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:31:47,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:31:47,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:31:47,945 INFO L225 Difference]: With dead ends: 7839 [2023-12-18 22:31:47,945 INFO L226 Difference]: Without dead ends: 6199 [2023-12-18 22:31:47,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:31:47,952 INFO L413 NwaCegarLoop]: 4417 mSDtfsCounter, 5453 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3646 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5472 SdHoareTripleChecker+Valid, 21775 SdHoareTripleChecker+Invalid, 3709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-18 22:31:47,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5472 Valid, 21775 Invalid, 3709 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3646 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-18 22:31:47,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6199 states. [2023-12-18 22:31:48,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6199 to 5080. [2023-12-18 22:31:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5080 states, 4822 states have (on average 1.7254251347988387) internal successors, (8320), 4832 states have internal predecessors, (8320), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2023-12-18 22:31:48,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 8743 transitions. [2023-12-18 22:31:48,096 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 8743 transitions. Word has length 161 [2023-12-18 22:31:48,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:31:48,098 INFO L495 AbstractCegarLoop]: Abstraction has 5080 states and 8743 transitions. [2023-12-18 22:31:48,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:48,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 8743 transitions. [2023-12-18 22:31:48,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:31:48,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:31:48,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:31:48,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-18 22:31:48,101 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:31:48,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:31:48,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1229519811, now seen corresponding path program 1 times [2023-12-18 22:31:48,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:31:48,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051941729] [2023-12-18 22:31:48,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:31:48,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:31:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:48,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:31:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:48,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:31:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:48,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:31:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:48,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:31:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:48,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:31:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:48,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:31:48,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:31:48,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051941729] [2023-12-18 22:31:48,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051941729] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:31:48,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:31:48,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:31:48,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81812691] [2023-12-18 22:31:48,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:31:48,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:31:48,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:31:48,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:31:48,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:31:48,281 INFO L87 Difference]: Start difference. First operand 5080 states and 8743 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:49,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:31:49,825 INFO L93 Difference]: Finished difference Result 9165 states and 15533 transitions. [2023-12-18 22:31:49,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:31:49,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:31:49,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:31:49,874 INFO L225 Difference]: With dead ends: 9165 [2023-12-18 22:31:49,878 INFO L226 Difference]: Without dead ends: 6224 [2023-12-18 22:31:49,900 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 [2023-12-18 22:31:49,902 INFO L413 NwaCegarLoop]: 4208 mSDtfsCounter, 5035 mSDsluCounter, 16601 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5055 SdHoareTripleChecker+Valid, 20809 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-18 22:31:49,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5055 Valid, 20809 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1854 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-18 22:31:49,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6224 states. [2023-12-18 22:31:50,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6224 to 5080. [2023-12-18 22:31:50,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5080 states, 4822 states have (on average 1.7235586893405226) internal successors, (8311), 4832 states have internal predecessors, (8311), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2023-12-18 22:31:50,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 8734 transitions. [2023-12-18 22:31:50,157 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 8734 transitions. Word has length 161 [2023-12-18 22:31:50,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:31:50,158 INFO L495 AbstractCegarLoop]: Abstraction has 5080 states and 8734 transitions. [2023-12-18 22:31:50,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:50,158 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 8734 transitions. [2023-12-18 22:31:50,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:31:50,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:31:50,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:31:50,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-18 22:31:50,161 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:31:50,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:31:50,162 INFO L85 PathProgramCache]: Analyzing trace with hash -866053313, now seen corresponding path program 1 times [2023-12-18 22:31:50,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:31:50,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167537430] [2023-12-18 22:31:50,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:31:50,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:31:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:50,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:31:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:50,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:31:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:50,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:31:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:50,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:31:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:50,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:31:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:50,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:31:50,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:31:50,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167537430] [2023-12-18 22:31:50,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167537430] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:31:50,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:31:50,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:31:50,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136376790] [2023-12-18 22:31:50,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:31:50,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:31:50,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:31:50,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:31:50,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:31:50,368 INFO L87 Difference]: Start difference. First operand 5080 states and 8734 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:53,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:31:53,401 INFO L93 Difference]: Finished difference Result 12574 states and 21066 transitions. [2023-12-18 22:31:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:31:53,401 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:31:53,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:31:53,444 INFO L225 Difference]: With dead ends: 12574 [2023-12-18 22:31:53,444 INFO L226 Difference]: Without dead ends: 9633 [2023-12-18 22:31:53,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:31:53,454 INFO L413 NwaCegarLoop]: 4417 mSDtfsCounter, 5445 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3608 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5464 SdHoareTripleChecker+Valid, 21775 SdHoareTripleChecker+Invalid, 3671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-18 22:31:53,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5464 Valid, 21775 Invalid, 3671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3608 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-18 22:31:53,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9633 states. [2023-12-18 22:31:53,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9633 to 7692. [2023-12-18 22:31:53,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7692 states, 7210 states have (on average 1.6828016643550625) internal successors, (12133), 7228 states have internal predecessors, (12133), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2023-12-18 22:31:53,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7692 states to 7692 states and 12954 transitions. [2023-12-18 22:31:53,673 INFO L78 Accepts]: Start accepts. Automaton has 7692 states and 12954 transitions. Word has length 161 [2023-12-18 22:31:53,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:31:53,674 INFO L495 AbstractCegarLoop]: Abstraction has 7692 states and 12954 transitions. [2023-12-18 22:31:53,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:53,674 INFO L276 IsEmpty]: Start isEmpty. Operand 7692 states and 12954 transitions. [2023-12-18 22:31:53,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:31:53,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:31:53,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:31:53,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-18 22:31:53,681 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:31:53,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:31:53,681 INFO L85 PathProgramCache]: Analyzing trace with hash -577233923, now seen corresponding path program 1 times [2023-12-18 22:31:53,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:31:53,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558682326] [2023-12-18 22:31:53,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:31:53,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:31:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:53,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:31:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:53,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:31:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:53,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:31:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:53,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:31:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:53,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:31:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:53,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:31:53,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:31:53,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558682326] [2023-12-18 22:31:53,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558682326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:31:53,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:31:53,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:31:53,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621653530] [2023-12-18 22:31:53,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:31:53,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:31:53,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:31:53,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:31:53,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:31:53,979 INFO L87 Difference]: Start difference. First operand 7692 states and 12954 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:57,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:31:57,624 INFO L93 Difference]: Finished difference Result 22060 states and 36616 transitions. [2023-12-18 22:31:57,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:31:57,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:31:57,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:31:57,665 INFO L225 Difference]: With dead ends: 22060 [2023-12-18 22:31:57,665 INFO L226 Difference]: Without dead ends: 16507 [2023-12-18 22:31:57,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:31:57,686 INFO L413 NwaCegarLoop]: 4417 mSDtfsCounter, 5444 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3595 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5463 SdHoareTripleChecker+Valid, 21775 SdHoareTripleChecker+Invalid, 3658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-18 22:31:57,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5463 Valid, 21775 Invalid, 3658 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3595 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-18 22:31:57,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16507 states. [2023-12-18 22:31:58,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16507 to 12929. [2023-12-18 22:31:58,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12929 states, 11999 states have (on average 1.6497208100675056) internal successors, (19795), 12033 states have internal predecessors, (19795), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2023-12-18 22:31:58,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12929 states to 12929 states and 21466 transitions. [2023-12-18 22:31:58,167 INFO L78 Accepts]: Start accepts. Automaton has 12929 states and 21466 transitions. Word has length 161 [2023-12-18 22:31:58,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:31:58,168 INFO L495 AbstractCegarLoop]: Abstraction has 12929 states and 21466 transitions. [2023-12-18 22:31:58,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:31:58,168 INFO L276 IsEmpty]: Start isEmpty. Operand 12929 states and 21466 transitions. [2023-12-18 22:31:58,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:31:58,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:31:58,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:31:58,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-18 22:31:58,174 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:31:58,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:31:58,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1122106497, now seen corresponding path program 1 times [2023-12-18 22:31:58,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:31:58,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149019204] [2023-12-18 22:31:58,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:31:58,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:31:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:58,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:31:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:58,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:31:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:58,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:31:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:58,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:31:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:58,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:31:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:31:58,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:31:58,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:31:58,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149019204] [2023-12-18 22:31:58,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149019204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:31:58,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:31:58,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:31:58,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934146138] [2023-12-18 22:31:58,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:31:58,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:31:58,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:31:58,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:31:58,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:31:58,376 INFO L87 Difference]: Start difference. First operand 12929 states and 21466 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:32:01,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:32:01,892 INFO L93 Difference]: Finished difference Result 41031 states and 67906 transitions. [2023-12-18 22:32:01,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:32:01,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:32:01,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:32:01,975 INFO L225 Difference]: With dead ends: 41031 [2023-12-18 22:32:01,975 INFO L226 Difference]: Without dead ends: 30241 [2023-12-18 22:32:02,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:32:02,004 INFO L413 NwaCegarLoop]: 4230 mSDtfsCounter, 5541 mSDsluCounter, 16851 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5560 SdHoareTripleChecker+Valid, 21081 SdHoareTripleChecker+Invalid, 3096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-18 22:32:02,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5560 Valid, 21081 Invalid, 3096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-18 22:32:02,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30241 states. [2023-12-18 22:32:02,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30241 to 23434. [2023-12-18 22:32:02,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23434 states, 21608 states have (on average 1.6274065161051463) internal successors, (35165), 21674 states have internal predecessors, (35165), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2023-12-18 22:32:02,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23434 states to 23434 states and 38698 transitions. [2023-12-18 22:32:02,715 INFO L78 Accepts]: Start accepts. Automaton has 23434 states and 38698 transitions. Word has length 161 [2023-12-18 22:32:02,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:32:02,716 INFO L495 AbstractCegarLoop]: Abstraction has 23434 states and 38698 transitions. [2023-12-18 22:32:02,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:32:02,716 INFO L276 IsEmpty]: Start isEmpty. Operand 23434 states and 38698 transitions. [2023-12-18 22:32:02,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:32:02,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:32:02,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:32:02,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-18 22:32:02,727 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:32:02,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:32:02,728 INFO L85 PathProgramCache]: Analyzing trace with hash -446946371, now seen corresponding path program 1 times [2023-12-18 22:32:02,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:32:02,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224202594] [2023-12-18 22:32:02,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:32:02,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:32:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:02,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:32:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:02,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:32:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:02,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:32:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:02,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:32:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:02,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:32:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:02,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:32:02,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:32:02,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224202594] [2023-12-18 22:32:02,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224202594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:32:02,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:32:02,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:32:02,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425089019] [2023-12-18 22:32:02,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:32:02,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:32:02,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:32:02,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:32:02,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:32:02,904 INFO L87 Difference]: Start difference. First operand 23434 states and 38698 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:32:04,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:32:04,920 INFO L93 Difference]: Finished difference Result 51969 states and 86648 transitions. [2023-12-18 22:32:04,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:32:04,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:32:04,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:32:05,008 INFO L225 Difference]: With dead ends: 51969 [2023-12-18 22:32:05,008 INFO L226 Difference]: Without dead ends: 30674 [2023-12-18 22:32:05,053 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 [2023-12-18 22:32:05,054 INFO L413 NwaCegarLoop]: 4208 mSDtfsCounter, 5194 mSDsluCounter, 12482 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5214 SdHoareTripleChecker+Valid, 16690 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-18 22:32:05,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5214 Valid, 16690 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-18 22:32:05,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30674 states. [2023-12-18 22:32:05,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30674 to 23434. [2023-12-18 22:32:05,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23434 states, 21608 states have (on average 1.6243983709737135) internal successors, (35100), 21674 states have internal predecessors, (35100), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2023-12-18 22:32:05,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23434 states to 23434 states and 38633 transitions. [2023-12-18 22:32:05,927 INFO L78 Accepts]: Start accepts. Automaton has 23434 states and 38633 transitions. Word has length 161 [2023-12-18 22:32:05,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:32:05,928 INFO L495 AbstractCegarLoop]: Abstraction has 23434 states and 38633 transitions. [2023-12-18 22:32:05,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:32:05,928 INFO L276 IsEmpty]: Start isEmpty. Operand 23434 states and 38633 transitions. [2023-12-18 22:32:05,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:32:05,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:32:05,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:32:05,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-18 22:32:05,937 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:32:05,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:32:05,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1394998337, now seen corresponding path program 1 times [2023-12-18 22:32:05,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:32:05,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629682228] [2023-12-18 22:32:05,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:32:05,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:32:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:05,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:32:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:06,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:32:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:06,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:32:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:06,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:32:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:32:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:06,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:32:06,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:32:06,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629682228] [2023-12-18 22:32:06,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629682228] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:32:06,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:32:06,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:32:06,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294343308] [2023-12-18 22:32:06,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:32:06,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:32:06,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:32:06,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:32:06,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:32:06,134 INFO L87 Difference]: Start difference. First operand 23434 states and 38633 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:32:10,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:32:10,901 INFO L93 Difference]: Finished difference Result 88570 states and 146310 transitions. [2023-12-18 22:32:10,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:32:10,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:32:10,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:32:11,091 INFO L225 Difference]: With dead ends: 88570 [2023-12-18 22:32:11,091 INFO L226 Difference]: Without dead ends: 67275 [2023-12-18 22:32:11,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:32:11,135 INFO L413 NwaCegarLoop]: 4415 mSDtfsCounter, 5871 mSDsluCounter, 17353 mSDsCounter, 0 mSdLazyCounter, 3515 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5903 SdHoareTripleChecker+Valid, 21768 SdHoareTripleChecker+Invalid, 3581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-18 22:32:11,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5903 Valid, 21768 Invalid, 3581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 3515 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-18 22:32:11,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67275 states. [2023-12-18 22:32:12,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67275 to 44509. [2023-12-18 22:32:12,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44509 states, 40955 states have (on average 1.6115736784275425) internal successors, (66002), 41085 states have internal predecessors, (66002), 2650 states have call successors, (2650), 774 states have call predecessors, (2650), 902 states have return successors, (4965), 2777 states have call predecessors, (4965), 2650 states have call successors, (4965) [2023-12-18 22:32:12,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44509 states to 44509 states and 73617 transitions. [2023-12-18 22:32:12,819 INFO L78 Accepts]: Start accepts. Automaton has 44509 states and 73617 transitions. Word has length 161 [2023-12-18 22:32:12,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:32:12,819 INFO L495 AbstractCegarLoop]: Abstraction has 44509 states and 73617 transitions. [2023-12-18 22:32:12,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:32:12,820 INFO L276 IsEmpty]: Start isEmpty. Operand 44509 states and 73617 transitions. [2023-12-18 22:32:12,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:32:12,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:32:12,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:32:12,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-18 22:32:12,837 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:32:12,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:32:12,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1829503935, now seen corresponding path program 1 times [2023-12-18 22:32:12,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:32:12,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779098784] [2023-12-18 22:32:12,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:32:12,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:32:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:12,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:32:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:12,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:32:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:12,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:32:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:13,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:32:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:13,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:32:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:13,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:32:13,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:32:13,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779098784] [2023-12-18 22:32:13,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779098784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:32:13,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:32:13,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:32:13,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942921047] [2023-12-18 22:32:13,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:32:13,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:32:13,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:32:13,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:32:13,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:32:13,251 INFO L87 Difference]: Start difference. First operand 44509 states and 73617 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:32:19,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:32:19,437 INFO L93 Difference]: Finished difference Result 172395 states and 287072 transitions. [2023-12-18 22:32:19,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:32:19,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:32:19,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:32:19,921 INFO L225 Difference]: With dead ends: 172395 [2023-12-18 22:32:19,921 INFO L226 Difference]: Without dead ends: 130025 [2023-12-18 22:32:20,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:32:20,069 INFO L413 NwaCegarLoop]: 4414 mSDtfsCounter, 5536 mSDsluCounter, 17350 mSDsCounter, 0 mSdLazyCounter, 4178 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5554 SdHoareTripleChecker+Valid, 21764 SdHoareTripleChecker+Invalid, 4243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-18 22:32:20,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5554 Valid, 21764 Invalid, 4243 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 4178 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-18 22:32:20,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130025 states. [2023-12-18 22:32:23,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130025 to 86014. [2023-12-18 22:32:24,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86014 states, 79068 states have (on average 1.6049476400060707) internal successors, (126900), 79326 states have internal predecessors, (126900), 5146 states have call successors, (5146), 1542 states have call predecessors, (5146), 1798 states have return successors, (11963), 5401 states have call predecessors, (11963), 5146 states have call successors, (11963) [2023-12-18 22:32:24,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86014 states to 86014 states and 144009 transitions. [2023-12-18 22:32:24,567 INFO L78 Accepts]: Start accepts. Automaton has 86014 states and 144009 transitions. Word has length 161 [2023-12-18 22:32:24,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:32:24,567 INFO L495 AbstractCegarLoop]: Abstraction has 86014 states and 144009 transitions. [2023-12-18 22:32:24,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:32:24,567 INFO L276 IsEmpty]: Start isEmpty. Operand 86014 states and 144009 transitions. [2023-12-18 22:32:24,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:32:24,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:32:24,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:32:24,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-18 22:32:24,612 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:32:24,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:32:24,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2035805055, now seen corresponding path program 1 times [2023-12-18 22:32:24,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:32:24,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819836124] [2023-12-18 22:32:24,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:32:24,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:32:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:24,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:32:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:24,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:32:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:24,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:32:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:24,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:32:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:24,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:32:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:24,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:32:24,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:32:24,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819836124] [2023-12-18 22:32:24,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819836124] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:32:24,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:32:24,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:32:24,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203141673] [2023-12-18 22:32:24,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:32:24,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:32:24,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:32:24,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:32:24,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:32:24,810 INFO L87 Difference]: Start difference. First operand 86014 states and 144009 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:32:33,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:32:33,925 INFO L93 Difference]: Finished difference Result 336330 states and 568022 transitions. [2023-12-18 22:32:33,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:32:33,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:32:33,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:32:35,085 INFO L225 Difference]: With dead ends: 336330 [2023-12-18 22:32:35,085 INFO L226 Difference]: Without dead ends: 252455 [2023-12-18 22:32:35,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:32:35,370 INFO L413 NwaCegarLoop]: 4415 mSDtfsCounter, 5799 mSDsluCounter, 17353 mSDsCounter, 0 mSdLazyCounter, 3489 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5831 SdHoareTripleChecker+Valid, 21768 SdHoareTripleChecker+Invalid, 3555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-18 22:32:35,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5831 Valid, 21768 Invalid, 3555 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 3489 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-18 22:32:35,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252455 states. [2023-12-18 22:32:42,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252455 to 169663. [2023-12-18 22:32:42,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169663 states, 156061 states have (on average 1.6017711023253727) internal successors, (249974), 156575 states have internal predecessors, (249974), 10010 states have call successors, (10010), 3078 states have call predecessors, (10010), 3590 states have return successors, (30205), 10521 states have call predecessors, (30205), 10010 states have call successors, (30205) [2023-12-18 22:32:43,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169663 states to 169663 states and 290189 transitions. [2023-12-18 22:32:43,911 INFO L78 Accepts]: Start accepts. Automaton has 169663 states and 290189 transitions. Word has length 161 [2023-12-18 22:32:43,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:32:43,911 INFO L495 AbstractCegarLoop]: Abstraction has 169663 states and 290189 transitions. [2023-12-18 22:32:43,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:32:43,912 INFO L276 IsEmpty]: Start isEmpty. Operand 169663 states and 290189 transitions. [2023-12-18 22:32:43,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:32:43,982 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:32:43,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:32:43,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-18 22:32:43,983 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:32:43,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:32:43,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1329208449, now seen corresponding path program 1 times [2023-12-18 22:32:43,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:32:43,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300702853] [2023-12-18 22:32:43,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:32:43,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:32:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:44,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:32:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:44,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:32:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:44,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:32:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:44,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:32:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:44,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:32:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:32:44,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:32:44,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:32:44,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300702853] [2023-12-18 22:32:44,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300702853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:32:44,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:32:44,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:32:44,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722147371] [2023-12-18 22:32:44,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:32:44,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:32:44,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:32:44,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:32:44,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:32:44,200 INFO L87 Difference]: Start difference. First operand 169663 states and 290189 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:32:59,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:32:59,660 INFO L93 Difference]: Finished difference Result 662025 states and 1143580 transitions. [2023-12-18 22:32:59,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:32:59,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:32:59,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:02,368 INFO L225 Difference]: With dead ends: 662025 [2023-12-18 22:33:02,369 INFO L226 Difference]: Without dead ends: 494501 [2023-12-18 22:33:03,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:33:03,009 INFO L413 NwaCegarLoop]: 4415 mSDtfsCounter, 5763 mSDsluCounter, 17353 mSDsCounter, 0 mSdLazyCounter, 3476 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5795 SdHoareTripleChecker+Valid, 21768 SdHoareTripleChecker+Invalid, 3542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:03,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5795 Valid, 21768 Invalid, 3542 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 3476 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-18 22:33:03,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494501 states. [2023-12-18 22:33:17,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494501 to 336960. [2023-12-18 22:33:18,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336960 states, 310302 states have (on average 1.6004795328421988) internal successors, (496632), 311328 states have internal predecessors, (496632), 19482 states have call successors, (19482), 6150 states have call predecessors, (19482), 7174 states have return successors, (79555), 20505 states have call predecessors, (79555), 19482 states have call successors, (79555) [2023-12-18 22:33:20,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336960 states to 336960 states and 595669 transitions. [2023-12-18 22:33:20,443 INFO L78 Accepts]: Start accepts. Automaton has 336960 states and 595669 transitions. Word has length 161 [2023-12-18 22:33:20,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:20,449 INFO L495 AbstractCegarLoop]: Abstraction has 336960 states and 595669 transitions. [2023-12-18 22:33:20,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:33:20,462 INFO L276 IsEmpty]: Start isEmpty. Operand 336960 states and 595669 transitions. [2023-12-18 22:33:20,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:20,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:20,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:33:20,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-18 22:33:20,599 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:20,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:20,600 INFO L85 PathProgramCache]: Analyzing trace with hash -2018720961, now seen corresponding path program 1 times [2023-12-18 22:33:20,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:20,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597219585] [2023-12-18 22:33:20,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:20,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:20,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:20,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:20,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:20,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:20,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:20,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:20,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:20,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597219585] [2023-12-18 22:33:20,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597219585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:20,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:20,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:20,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445837872] [2023-12-18 22:33:20,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:20,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:20,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:20,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:20,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:20,777 INFO L87 Difference]: Start difference. First operand 336960 states and 595669 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 22:33:49,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:49,040 INFO L93 Difference]: Finished difference Result 1305736 states and 2333874 transitions. [2023-12-18 22:33:49,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:33:49,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2023-12-18 22:33:49,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:54,963 INFO L225 Difference]: With dead ends: 1305736 [2023-12-18 22:33:54,964 INFO L226 Difference]: Without dead ends: 970915 [2023-12-18 22:33:56,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:33:56,651 INFO L413 NwaCegarLoop]: 4415 mSDtfsCounter, 5507 mSDsluCounter, 17353 mSDsCounter, 0 mSdLazyCounter, 4002 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5525 SdHoareTripleChecker+Valid, 21768 SdHoareTripleChecker+Invalid, 4067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:56,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5525 Valid, 21768 Invalid, 4067 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 4002 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-18 22:33:57,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970915 states.