/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-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.5.prop3-func-interl.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 19:00:15,309 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 19:00:15,382 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2023-12-16 19:00:15,386 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 19:00:15,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 19:00:15,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 19:00:15,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 19:00:15,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 19:00:15,428 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 19:00:15,428 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 19:00:15,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 19:00:15,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 19:00:15,429 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 19:00:15,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 19:00:15,430 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 19:00:15,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 19:00:15,431 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 19:00:15,431 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 19:00:15,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 19:00:15,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 19:00:15,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 19:00:15,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 19:00:15,435 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 19:00:15,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 19:00:15,439 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 19:00:15,440 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 19:00:15,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 19:00:15,441 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 19:00:15,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 19:00:15,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:00:15,443 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 19:00:15,443 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 19:00:15,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 19:00:15,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 19:00:15,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 19:00:15,444 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 19:00:15,444 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 19:00:15,444 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 19:00:15,444 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 19:00:15,444 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 19:00:15,445 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-16 19:00:15,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 19:00:15,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 19:00:15,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 19:00:15,703 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 19:00:15,706 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 19:00:15,708 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.5.prop3-func-interl.c [2023-12-16 19:00:16,916 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 19:00:17,271 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 19:00:17,272 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.5.prop3-func-interl.c [2023-12-16 19:00:17,293 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c442b299d/3922b9f3d60f40738ff3666da3ec8e01/FLAG24dcc46a0 [2023-12-16 19:00:17,309 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c442b299d/3922b9f3d60f40738ff3666da3ec8e01 [2023-12-16 19:00:17,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 19:00:17,314 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 19:00:17,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 19:00:17,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 19:00:17,320 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 19:00:17,321 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:00:17" (1/1) ... [2023-12-16 19:00:17,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a898544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:17, skipping insertion in model container [2023-12-16 19:00:17,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:00:17" (1/1) ... [2023-12-16 19:00:17,395 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 19:00:17,567 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.5.prop3-func-interl.c[1171,1184] [2023-12-16 19:00:18,094 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:00:18,104 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 19:00:18,115 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.brp2.5.prop3-func-interl.c[1171,1184] [2023-12-16 19:00:18,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:00:18,303 INFO L206 MainTranslator]: Completed translation [2023-12-16 19:00:18,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:18 WrapperNode [2023-12-16 19:00:18,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 19:00:18,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 19:00:18,305 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 19:00:18,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 19:00:18,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:18" (1/1) ... [2023-12-16 19:00:18,394 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:18" (1/1) ... [2023-12-16 19:00:19,525 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 10706 [2023-12-16 19:00:19,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 19:00:19,526 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 19:00:19,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 19:00:19,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 19:00:19,534 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:18" (1/1) ... [2023-12-16 19:00:19,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:18" (1/1) ... [2023-12-16 19:00:19,799 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:18" (1/1) ... [2023-12-16 19:00:19,940 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 19:00:19,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:18" (1/1) ... [2023-12-16 19:00:19,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:18" (1/1) ... [2023-12-16 19:00:20,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:18" (1/1) ... [2023-12-16 19:00:20,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:18" (1/1) ... [2023-12-16 19:00:20,479 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:18" (1/1) ... [2023-12-16 19:00:20,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:18" (1/1) ... [2023-12-16 19:00:20,672 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 19:00:20,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 19:00:20,673 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 19:00:20,673 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 19:00:20,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:18" (1/1) ... [2023-12-16 19:00:20,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:00:20,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:00:20,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 19:00:20,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 19:00:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 19:00:20,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 19:00:20,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 19:00:20,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 19:00:21,462 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 19:00:21,464 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 19:00:26,854 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 19:00:27,001 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 19:00:27,001 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 19:00:27,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:00:27 BoogieIcfgContainer [2023-12-16 19:00:27,002 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 19:00:27,004 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 19:00:27,004 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 19:00:27,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 19:00:27,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:00:17" (1/3) ... [2023-12-16 19:00:27,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e494f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:00:27, skipping insertion in model container [2023-12-16 19:00:27,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:00:18" (2/3) ... [2023-12-16 19:00:27,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e494f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:00:27, skipping insertion in model container [2023-12-16 19:00:27,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:00:27" (3/3) ... [2023-12-16 19:00:27,010 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.brp2.5.prop3-func-interl.c [2023-12-16 19:00:27,026 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 19:00:27,026 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 19:00:27,100 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 19:00:27,106 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;@72550a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 19:00:27,106 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 19:00:27,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 2480 states, 2478 states have (on average 1.6698950766747378) internal successors, (4138), 2479 states have internal predecessors, (4138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:27,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-16 19:00:27,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:27,134 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] [2023-12-16 19:00:27,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:27,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:27,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1918017205, now seen corresponding path program 1 times [2023-12-16 19:00:27,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:27,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372248380] [2023-12-16 19:00:27,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:27,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:28,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:28,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:28,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372248380] [2023-12-16 19:00:28,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372248380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:28,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:28,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:00:28,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036845327] [2023-12-16 19:00:28,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:28,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:00:28,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:28,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:00:28,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:00:28,149 INFO L87 Difference]: Start difference. First operand has 2480 states, 2478 states have (on average 1.6698950766747378) internal successors, (4138), 2479 states have internal predecessors, (4138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:28,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:28,364 INFO L93 Difference]: Finished difference Result 4827 states and 8057 transitions. [2023-12-16 19:00:28,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:00:28,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2023-12-16 19:00:28,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:28,402 INFO L225 Difference]: With dead ends: 4827 [2023-12-16 19:00:28,402 INFO L226 Difference]: Without dead ends: 2480 [2023-12-16 19:00:28,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:00:28,417 INFO L413 NwaCegarLoop]: 4131 mSDtfsCounter, 1 mSDsluCounter, 8257 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 12388 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:28,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 12388 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:00:28,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2023-12-16 19:00:28,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2480. [2023-12-16 19:00:28,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2480 states, 2479 states have (on average 1.6684146833400564) internal successors, (4136), 2479 states have internal predecessors, (4136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:28,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 4136 transitions. [2023-12-16 19:00:28,558 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 4136 transitions. Word has length 160 [2023-12-16 19:00:28,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:28,560 INFO L495 AbstractCegarLoop]: Abstraction has 2480 states and 4136 transitions. [2023-12-16 19:00:28,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:28,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 4136 transitions. [2023-12-16 19:00:28,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 19:00:28,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:28,564 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] [2023-12-16 19:00:28,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 19:00:28,564 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:28,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:28,565 INFO L85 PathProgramCache]: Analyzing trace with hash -669223323, now seen corresponding path program 1 times [2023-12-16 19:00:28,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:28,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864137995] [2023-12-16 19:00:28,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:28,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:28,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:28,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:28,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864137995] [2023-12-16 19:00:28,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864137995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:28,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:28,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:00:28,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125322647] [2023-12-16 19:00:28,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:28,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:00:28,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:28,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:00:28,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:00:28,983 INFO L87 Difference]: Start difference. First operand 2480 states and 4136 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:29,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:29,095 INFO L93 Difference]: Finished difference Result 4830 states and 8055 transitions. [2023-12-16 19:00:29,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:00:29,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2023-12-16 19:00:29,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:29,107 INFO L225 Difference]: With dead ends: 4830 [2023-12-16 19:00:29,107 INFO L226 Difference]: Without dead ends: 2483 [2023-12-16 19:00:29,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:00:29,111 INFO L413 NwaCegarLoop]: 4131 mSDtfsCounter, 1 mSDsluCounter, 8255 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 12386 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:29,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 12386 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:00:29,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2483 states. [2023-12-16 19:00:29,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2483 to 2482. [2023-12-16 19:00:29,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2482 states, 2481 states have (on average 1.667875856509472) internal successors, (4138), 2481 states have internal predecessors, (4138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:29,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 4138 transitions. [2023-12-16 19:00:29,162 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 4138 transitions. Word has length 161 [2023-12-16 19:00:29,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:29,163 INFO L495 AbstractCegarLoop]: Abstraction has 2482 states and 4138 transitions. [2023-12-16 19:00:29,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:29,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 4138 transitions. [2023-12-16 19:00:29,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-16 19:00:29,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:29,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:00:29,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 19:00:29,167 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:29,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:29,167 INFO L85 PathProgramCache]: Analyzing trace with hash 516694477, now seen corresponding path program 1 times [2023-12-16 19:00:29,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:29,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260084603] [2023-12-16 19:00:29,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:29,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:29,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:29,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:29,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260084603] [2023-12-16 19:00:29,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260084603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:29,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:29,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:00:29,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713171427] [2023-12-16 19:00:29,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:29,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:00:29,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:29,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:00:29,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:00:29,481 INFO L87 Difference]: Start difference. First operand 2482 states and 4138 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:29,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:29,648 INFO L93 Difference]: Finished difference Result 7170 states and 11957 transitions. [2023-12-16 19:00:29,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:00:29,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2023-12-16 19:00:29,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:29,666 INFO L225 Difference]: With dead ends: 7170 [2023-12-16 19:00:29,667 INFO L226 Difference]: Without dead ends: 4821 [2023-12-16 19:00:29,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:00:29,676 INFO L413 NwaCegarLoop]: 4287 mSDtfsCounter, 3899 mSDsluCounter, 8407 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3899 SdHoareTripleChecker+Valid, 12694 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:29,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3899 Valid, 12694 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:00:29,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4821 states. [2023-12-16 19:00:29,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4821 to 2484. [2023-12-16 19:00:29,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2484 states, 2483 states have (on average 1.6673378977043898) internal successors, (4140), 2483 states have internal predecessors, (4140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:29,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 4140 transitions. [2023-12-16 19:00:29,882 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 4140 transitions. Word has length 162 [2023-12-16 19:00:29,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:29,882 INFO L495 AbstractCegarLoop]: Abstraction has 2484 states and 4140 transitions. [2023-12-16 19:00:29,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:29,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 4140 transitions. [2023-12-16 19:00:29,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-16 19:00:29,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:29,886 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, 1, 1] [2023-12-16 19:00:29,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 19:00:29,886 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:29,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:29,887 INFO L85 PathProgramCache]: Analyzing trace with hash 435779851, now seen corresponding path program 1 times [2023-12-16 19:00:29,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:29,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427414062] [2023-12-16 19:00:29,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:29,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:30,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:30,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427414062] [2023-12-16 19:00:30,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427414062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:30,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:30,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 19:00:30,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951826630] [2023-12-16 19:00:30,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:30,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:00:30,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:30,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:00:30,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:00:30,240 INFO L87 Difference]: Start difference. First operand 2484 states and 4140 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:30,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:30,472 INFO L93 Difference]: Finished difference Result 7188 states and 11981 transitions. [2023-12-16 19:00:30,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 19:00:30,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2023-12-16 19:00:30,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:30,490 INFO L225 Difference]: With dead ends: 7188 [2023-12-16 19:00:30,490 INFO L226 Difference]: Without dead ends: 4837 [2023-12-16 19:00:30,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-16 19:00:30,496 INFO L413 NwaCegarLoop]: 4287 mSDtfsCounter, 7809 mSDsluCounter, 16819 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7809 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:30,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7809 Valid, 21106 Invalid, 57 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:00:30,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4837 states. [2023-12-16 19:00:30,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4837 to 2487. [2023-12-16 19:00:30,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2487 states, 2486 states have (on average 1.66733708769107) internal successors, (4145), 2486 states have internal predecessors, (4145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:30,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 4145 transitions. [2023-12-16 19:00:30,557 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 4145 transitions. Word has length 163 [2023-12-16 19:00:30,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:30,558 INFO L495 AbstractCegarLoop]: Abstraction has 2487 states and 4145 transitions. [2023-12-16 19:00:30,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:30,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 4145 transitions. [2023-12-16 19:00:30,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-16 19:00:30,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:30,560 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, 1, 1, 1] [2023-12-16 19:00:30,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 19:00:30,561 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:30,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:30,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2134297127, now seen corresponding path program 1 times [2023-12-16 19:00:30,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:30,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671209626] [2023-12-16 19:00:30,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:30,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:30,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:30,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:30,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671209626] [2023-12-16 19:00:30,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671209626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:30,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:30,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:00:30,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205650371] [2023-12-16 19:00:30,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:30,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:00:30,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:30,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:00:30,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:00:30,954 INFO L87 Difference]: Start difference. First operand 2487 states and 4145 transitions. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:33,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:33,319 INFO L93 Difference]: Finished difference Result 11445 states and 18963 transitions. [2023-12-16 19:00:33,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 19:00:33,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2023-12-16 19:00:33,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:33,335 INFO L225 Difference]: With dead ends: 11445 [2023-12-16 19:00:33,336 INFO L226 Difference]: Without dead ends: 4841 [2023-12-16 19:00:33,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 19:00:33,343 INFO L413 NwaCegarLoop]: 3982 mSDtfsCounter, 28289 mSDsluCounter, 11155 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28289 SdHoareTripleChecker+Valid, 15137 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:33,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28289 Valid, 15137 Invalid, 1856 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [356 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 19:00:33,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2023-12-16 19:00:33,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 2564. [2023-12-16 19:00:33,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2563 states have (on average 1.666796722590714) internal successors, (4272), 2563 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:33,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 4272 transitions. [2023-12-16 19:00:33,400 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 4272 transitions. Word has length 164 [2023-12-16 19:00:33,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:33,400 INFO L495 AbstractCegarLoop]: Abstraction has 2564 states and 4272 transitions. [2023-12-16 19:00:33,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:33,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 4272 transitions. [2023-12-16 19:00:33,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-16 19:00:33,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:33,402 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, 1, 1, 1, 1] [2023-12-16 19:00:33,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 19:00:33,402 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:33,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:33,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1855926009, now seen corresponding path program 1 times [2023-12-16 19:00:33,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:33,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245666273] [2023-12-16 19:00:33,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:33,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:33,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:33,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:33,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245666273] [2023-12-16 19:00:33,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245666273] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:33,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:33,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:00:33,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983888146] [2023-12-16 19:00:33,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:33,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:00:33,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:33,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:00:33,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:00:33,741 INFO L87 Difference]: Start difference. First operand 2564 states and 4272 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:35,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:35,418 INFO L93 Difference]: Finished difference Result 7245 states and 12066 transitions. [2023-12-16 19:00:35,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:00:35,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2023-12-16 19:00:35,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:35,450 INFO L225 Difference]: With dead ends: 7245 [2023-12-16 19:00:35,451 INFO L226 Difference]: Without dead ends: 4891 [2023-12-16 19:00:35,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-16 19:00:35,456 INFO L413 NwaCegarLoop]: 3432 mSDtfsCounter, 15694 mSDsluCounter, 7416 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15694 SdHoareTripleChecker+Valid, 10848 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:35,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15694 Valid, 10848 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 19:00:35,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4891 states. [2023-12-16 19:00:35,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4891 to 2570. [2023-12-16 19:00:35,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2570 states, 2569 states have (on average 1.6664071623199688) internal successors, (4281), 2569 states have internal predecessors, (4281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:35,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2570 states to 2570 states and 4281 transitions. [2023-12-16 19:00:35,523 INFO L78 Accepts]: Start accepts. Automaton has 2570 states and 4281 transitions. Word has length 165 [2023-12-16 19:00:35,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:35,523 INFO L495 AbstractCegarLoop]: Abstraction has 2570 states and 4281 transitions. [2023-12-16 19:00:35,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:35,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2570 states and 4281 transitions. [2023-12-16 19:00:35,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-16 19:00:35,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:35,525 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, 1, 1, 1, 1, 1] [2023-12-16 19:00:35,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 19:00:35,525 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:35,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:35,526 INFO L85 PathProgramCache]: Analyzing trace with hash 310935709, now seen corresponding path program 1 times [2023-12-16 19:00:35,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:35,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298628849] [2023-12-16 19:00:35,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:35,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:35,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:35,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:35,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298628849] [2023-12-16 19:00:35,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298628849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:35,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:35,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:00:35,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799327627] [2023-12-16 19:00:35,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:35,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:00:35,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:35,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:00:35,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:00:35,924 INFO L87 Difference]: Start difference. First operand 2570 states and 4281 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:38,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:38,181 INFO L93 Difference]: Finished difference Result 7195 states and 11991 transitions. [2023-12-16 19:00:38,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 19:00:38,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2023-12-16 19:00:38,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:38,191 INFO L225 Difference]: With dead ends: 7195 [2023-12-16 19:00:38,191 INFO L226 Difference]: Without dead ends: 4841 [2023-12-16 19:00:38,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 19:00:38,195 INFO L413 NwaCegarLoop]: 3250 mSDtfsCounter, 11799 mSDsluCounter, 6494 mSDsCounter, 0 mSdLazyCounter, 2657 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11799 SdHoareTripleChecker+Valid, 9744 SdHoareTripleChecker+Invalid, 2658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:38,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11799 Valid, 9744 Invalid, 2658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2657 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 19:00:38,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2023-12-16 19:00:38,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 2586. [2023-12-16 19:00:38,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2586 states, 2585 states have (on average 1.664990328820116) internal successors, (4304), 2585 states have internal predecessors, (4304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:38,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2586 states to 2586 states and 4304 transitions. [2023-12-16 19:00:38,264 INFO L78 Accepts]: Start accepts. Automaton has 2586 states and 4304 transitions. Word has length 166 [2023-12-16 19:00:38,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:38,265 INFO L495 AbstractCegarLoop]: Abstraction has 2586 states and 4304 transitions. [2023-12-16 19:00:38,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:38,266 INFO L276 IsEmpty]: Start isEmpty. Operand 2586 states and 4304 transitions. [2023-12-16 19:00:38,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-16 19:00:38,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:38,268 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, 1, 1, 1, 1, 1] [2023-12-16 19:00:38,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 19:00:38,268 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:38,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:38,269 INFO L85 PathProgramCache]: Analyzing trace with hash -82091301, now seen corresponding path program 1 times [2023-12-16 19:00:38,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:38,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742010709] [2023-12-16 19:00:38,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:38,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:38,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:38,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:38,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742010709] [2023-12-16 19:00:38,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742010709] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:38,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:38,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:00:38,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269684144] [2023-12-16 19:00:38,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:38,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:00:38,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:38,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:00:38,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:00:38,708 INFO L87 Difference]: Start difference. First operand 2586 states and 4304 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:40,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:40,800 INFO L93 Difference]: Finished difference Result 7210 states and 12008 transitions. [2023-12-16 19:00:40,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 19:00:40,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2023-12-16 19:00:40,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:40,810 INFO L225 Difference]: With dead ends: 7210 [2023-12-16 19:00:40,811 INFO L226 Difference]: Without dead ends: 4841 [2023-12-16 19:00:40,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 19:00:40,815 INFO L413 NwaCegarLoop]: 3246 mSDtfsCounter, 11807 mSDsluCounter, 6485 mSDsCounter, 0 mSdLazyCounter, 2670 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11807 SdHoareTripleChecker+Valid, 9731 SdHoareTripleChecker+Invalid, 2670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:40,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11807 Valid, 9731 Invalid, 2670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2670 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 19:00:40,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2023-12-16 19:00:40,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 2586. [2023-12-16 19:00:40,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2586 states, 2585 states have (on average 1.6646034816247581) internal successors, (4303), 2585 states have internal predecessors, (4303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:40,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2586 states to 2586 states and 4303 transitions. [2023-12-16 19:00:40,867 INFO L78 Accepts]: Start accepts. Automaton has 2586 states and 4303 transitions. Word has length 166 [2023-12-16 19:00:40,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:40,868 INFO L495 AbstractCegarLoop]: Abstraction has 2586 states and 4303 transitions. [2023-12-16 19:00:40,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:40,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2586 states and 4303 transitions. [2023-12-16 19:00:40,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-16 19:00:40,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:40,870 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, 1, 1, 1, 1, 1] [2023-12-16 19:00:40,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 19:00:40,870 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:40,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:40,870 INFO L85 PathProgramCache]: Analyzing trace with hash -899739751, now seen corresponding path program 1 times [2023-12-16 19:00:40,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:40,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928924570] [2023-12-16 19:00:40,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:40,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:41,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:41,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:41,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928924570] [2023-12-16 19:00:41,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928924570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:41,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:41,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 19:00:41,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295879495] [2023-12-16 19:00:41,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:41,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 19:00:41,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:41,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 19:00:41,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:00:41,760 INFO L87 Difference]: Start difference. First operand 2586 states and 4303 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:42,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:42,144 INFO L93 Difference]: Finished difference Result 9668 states and 16097 transitions. [2023-12-16 19:00:42,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 19:00:42,145 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2023-12-16 19:00:42,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:42,159 INFO L225 Difference]: With dead ends: 9668 [2023-12-16 19:00:42,159 INFO L226 Difference]: Without dead ends: 7305 [2023-12-16 19:00:42,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-16 19:00:42,166 INFO L413 NwaCegarLoop]: 4270 mSDtfsCounter, 15614 mSDsluCounter, 21657 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15614 SdHoareTripleChecker+Valid, 25927 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:42,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15614 Valid, 25927 Invalid, 93 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:00:42,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7305 states. [2023-12-16 19:00:42,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7305 to 2596. [2023-12-16 19:00:42,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2596 states, 2595 states have (on average 1.6628131021194605) internal successors, (4315), 2595 states have internal predecessors, (4315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:42,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2596 states to 2596 states and 4315 transitions. [2023-12-16 19:00:42,239 INFO L78 Accepts]: Start accepts. Automaton has 2596 states and 4315 transitions. Word has length 166 [2023-12-16 19:00:42,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:42,239 INFO L495 AbstractCegarLoop]: Abstraction has 2596 states and 4315 transitions. [2023-12-16 19:00:42,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:42,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2596 states and 4315 transitions. [2023-12-16 19:00:42,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-16 19:00:42,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:42,241 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, 1, 1, 1, 1, 1, 1] [2023-12-16 19:00:42,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 19:00:42,242 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:42,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:42,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1967406277, now seen corresponding path program 1 times [2023-12-16 19:00:42,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:42,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565679871] [2023-12-16 19:00:42,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:42,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:42,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:42,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:42,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565679871] [2023-12-16 19:00:42,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565679871] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:42,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:42,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:00:42,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183589207] [2023-12-16 19:00:42,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:42,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:00:42,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:42,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:00:42,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:00:42,525 INFO L87 Difference]: Start difference. First operand 2596 states and 4315 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:42,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:42,656 INFO L93 Difference]: Finished difference Result 7360 states and 12237 transitions. [2023-12-16 19:00:42,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 19:00:42,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167 [2023-12-16 19:00:42,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:42,664 INFO L225 Difference]: With dead ends: 7360 [2023-12-16 19:00:42,664 INFO L226 Difference]: Without dead ends: 4990 [2023-12-16 19:00:42,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 19:00:42,667 INFO L413 NwaCegarLoop]: 4271 mSDtfsCounter, 7826 mSDsluCounter, 12530 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7826 SdHoareTripleChecker+Valid, 16801 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:42,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7826 Valid, 16801 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:00:42,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4990 states. [2023-12-16 19:00:42,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4990 to 2616. [2023-12-16 19:00:42,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2616 states, 2615 states have (on average 1.660038240917782) internal successors, (4341), 2615 states have internal predecessors, (4341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:42,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2616 states to 2616 states and 4341 transitions. [2023-12-16 19:00:42,712 INFO L78 Accepts]: Start accepts. Automaton has 2616 states and 4341 transitions. Word has length 167 [2023-12-16 19:00:42,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:42,712 INFO L495 AbstractCegarLoop]: Abstraction has 2616 states and 4341 transitions. [2023-12-16 19:00:42,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:42,713 INFO L276 IsEmpty]: Start isEmpty. Operand 2616 states and 4341 transitions. [2023-12-16 19:00:42,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-16 19:00:42,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:42,714 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, 1, 1, 1, 1, 1, 1] [2023-12-16 19:00:42,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 19:00:42,714 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:42,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:42,715 INFO L85 PathProgramCache]: Analyzing trace with hash 413029089, now seen corresponding path program 1 times [2023-12-16 19:00:42,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:42,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5526111] [2023-12-16 19:00:42,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:42,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:43,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:43,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:43,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5526111] [2023-12-16 19:00:43,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5526111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:43,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:43,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:00:43,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605742094] [2023-12-16 19:00:43,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:43,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:00:43,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:43,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:00:43,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:00:43,016 INFO L87 Difference]: Start difference. First operand 2616 states and 4341 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:43,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:43,185 INFO L93 Difference]: Finished difference Result 7332 states and 12192 transitions. [2023-12-16 19:00:43,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:00:43,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167 [2023-12-16 19:00:43,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:43,196 INFO L225 Difference]: With dead ends: 7332 [2023-12-16 19:00:43,197 INFO L226 Difference]: Without dead ends: 4947 [2023-12-16 19:00:43,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:00:43,201 INFO L413 NwaCegarLoop]: 4261 mSDtfsCounter, 15835 mSDsluCounter, 8252 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15835 SdHoareTripleChecker+Valid, 12513 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:43,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15835 Valid, 12513 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:00:43,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4947 states. [2023-12-16 19:00:43,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4947 to 2609. [2023-12-16 19:00:43,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2609 states, 2608 states have (on average 1.6595092024539877) internal successors, (4328), 2608 states have internal predecessors, (4328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:43,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2609 states to 2609 states and 4328 transitions. [2023-12-16 19:00:43,251 INFO L78 Accepts]: Start accepts. Automaton has 2609 states and 4328 transitions. Word has length 167 [2023-12-16 19:00:43,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:43,252 INFO L495 AbstractCegarLoop]: Abstraction has 2609 states and 4328 transitions. [2023-12-16 19:00:43,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:43,252 INFO L276 IsEmpty]: Start isEmpty. Operand 2609 states and 4328 transitions. [2023-12-16 19:00:43,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-16 19:00:43,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:43,254 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:00:43,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 19:00:43,255 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:43,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:43,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1702600823, now seen corresponding path program 1 times [2023-12-16 19:00:43,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:43,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70461350] [2023-12-16 19:00:43,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:43,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:43,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:43,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:43,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70461350] [2023-12-16 19:00:43,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70461350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:43,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:43,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:00:43,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544360852] [2023-12-16 19:00:43,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:43,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:00:43,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:43,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:00:43,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:00:43,536 INFO L87 Difference]: Start difference. First operand 2609 states and 4328 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:43,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:43,675 INFO L93 Difference]: Finished difference Result 7307 states and 12153 transitions. [2023-12-16 19:00:43,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:00:43,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-16 19:00:43,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:43,683 INFO L225 Difference]: With dead ends: 7307 [2023-12-16 19:00:43,684 INFO L226 Difference]: Without dead ends: 4918 [2023-12-16 19:00:43,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:00:43,689 INFO L413 NwaCegarLoop]: 4255 mSDtfsCounter, 15787 mSDsluCounter, 8251 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15787 SdHoareTripleChecker+Valid, 12506 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:43,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15787 Valid, 12506 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:00:43,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4918 states. [2023-12-16 19:00:43,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4918 to 2594. [2023-12-16 19:00:43,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2594 states, 2593 states have (on average 1.6613960663324334) internal successors, (4308), 2593 states have internal predecessors, (4308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:43,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2594 states to 2594 states and 4308 transitions. [2023-12-16 19:00:43,734 INFO L78 Accepts]: Start accepts. Automaton has 2594 states and 4308 transitions. Word has length 168 [2023-12-16 19:00:43,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:43,734 INFO L495 AbstractCegarLoop]: Abstraction has 2594 states and 4308 transitions. [2023-12-16 19:00:43,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:43,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2594 states and 4308 transitions. [2023-12-16 19:00:43,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1700 [2023-12-16 19:00:43,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:43,799 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:00:43,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 19:00:43,800 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:43,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:43,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1294113643, now seen corresponding path program 1 times [2023-12-16 19:00:43,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:43,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221261512] [2023-12-16 19:00:43,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:43,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:44,023 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 19:00:44,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [219152782] [2023-12-16 19:00:44,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:44,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:00:44,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:00:44,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 19:00:44,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 19:00:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:46,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 7570 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 19:00:46,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 19:00:46,279 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:46,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 19:00:46,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:46,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221261512] [2023-12-16 19:00:46,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 19:00:46,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219152782] [2023-12-16 19:00:46,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219152782] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:46,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:46,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:00:46,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404969399] [2023-12-16 19:00:46,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:46,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:00:46,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:46,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:00:46,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:00:46,285 INFO L87 Difference]: Start difference. First operand 2594 states and 4308 transitions. Second operand has 4 states, 4 states have (on average 424.75) internal successors, (1699), 4 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:46,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:46,361 INFO L93 Difference]: Finished difference Result 4973 states and 8268 transitions. [2023-12-16 19:00:46,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:00:46,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 424.75) internal successors, (1699), 4 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1699 [2023-12-16 19:00:46,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:46,367 INFO L225 Difference]: With dead ends: 4973 [2023-12-16 19:00:46,368 INFO L226 Difference]: Without dead ends: 2604 [2023-12-16 19:00:46,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1698 GetRequests, 1696 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:00:46,372 INFO L413 NwaCegarLoop]: 4131 mSDtfsCounter, 12 mSDsluCounter, 8252 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12383 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:46,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 12383 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:00:46,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2023-12-16 19:00:46,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2596. [2023-12-16 19:00:46,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2596 states, 2595 states have (on average 1.6608863198458574) internal successors, (4310), 2595 states have internal predecessors, (4310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:46,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2596 states to 2596 states and 4310 transitions. [2023-12-16 19:00:46,407 INFO L78 Accepts]: Start accepts. Automaton has 2596 states and 4310 transitions. Word has length 1699 [2023-12-16 19:00:46,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:46,408 INFO L495 AbstractCegarLoop]: Abstraction has 2596 states and 4310 transitions. [2023-12-16 19:00:46,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 424.75) internal successors, (1699), 4 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:46,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2596 states and 4310 transitions. [2023-12-16 19:00:46,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1700 [2023-12-16 19:00:46,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:46,472 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:00:46,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 19:00:46,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-16 19:00:46,692 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:46,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:46,692 INFO L85 PathProgramCache]: Analyzing trace with hash 576032185, now seen corresponding path program 1 times [2023-12-16 19:00:46,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:46,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456511538] [2023-12-16 19:00:46,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:46,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:46,888 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 19:00:46,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1892079652] [2023-12-16 19:00:46,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:46,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:00:46,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:00:46,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 19:00:46,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 19:00:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:48,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 7571 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 19:00:48,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 19:00:49,246 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:49,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 19:00:49,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:49,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456511538] [2023-12-16 19:00:49,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 19:00:49,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892079652] [2023-12-16 19:00:49,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892079652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:49,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:49,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 19:00:49,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793422614] [2023-12-16 19:00:49,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:49,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:00:49,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:49,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:00:49,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:00:49,252 INFO L87 Difference]: Start difference. First operand 2596 states and 4310 transitions. Second operand has 4 states, 4 states have (on average 424.75) internal successors, (1699), 3 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:50,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:50,334 INFO L93 Difference]: Finished difference Result 4998 states and 8305 transitions. [2023-12-16 19:00:50,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:00:50,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 424.75) internal successors, (1699), 3 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1699 [2023-12-16 19:00:50,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:50,340 INFO L225 Difference]: With dead ends: 4998 [2023-12-16 19:00:50,340 INFO L226 Difference]: Without dead ends: 2627 [2023-12-16 19:00:50,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1699 GetRequests, 1696 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:00:50,343 INFO L413 NwaCegarLoop]: 3327 mSDtfsCounter, 7870 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7870 SdHoareTripleChecker+Valid, 3522 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:50,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7870 Valid, 3522 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 19:00:50,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2023-12-16 19:00:50,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2596. [2023-12-16 19:00:50,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2596 states, 2595 states have (on average 1.6605009633911367) internal successors, (4309), 2595 states have internal predecessors, (4309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:50,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2596 states to 2596 states and 4309 transitions. [2023-12-16 19:00:50,375 INFO L78 Accepts]: Start accepts. Automaton has 2596 states and 4309 transitions. Word has length 1699 [2023-12-16 19:00:50,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:50,375 INFO L495 AbstractCegarLoop]: Abstraction has 2596 states and 4309 transitions. [2023-12-16 19:00:50,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 424.75) internal successors, (1699), 3 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:50,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2596 states and 4309 transitions. [2023-12-16 19:00:50,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1701 [2023-12-16 19:00:50,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:50,449 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:00:50,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 19:00:50,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-16 19:00:50,664 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:50,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:50,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1050246713, now seen corresponding path program 1 times [2023-12-16 19:00:50,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:50,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422791647] [2023-12-16 19:00:50,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:50,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:50,886 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 19:00:50,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91705657] [2023-12-16 19:00:50,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:50,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:00:50,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:00:50,888 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 19:00:50,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 19:00:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:52,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 7572 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 19:00:52,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 19:00:52,894 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:52,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 19:00:52,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:52,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422791647] [2023-12-16 19:00:52,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 19:00:52,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91705657] [2023-12-16 19:00:52,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91705657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:52,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:52,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:00:52,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189094898] [2023-12-16 19:00:52,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:52,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:00:52,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:52,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:00:52,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:00:52,899 INFO L87 Difference]: Start difference. First operand 2596 states and 4309 transitions. Second operand has 5 states, 5 states have (on average 340.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:52,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:52,987 INFO L93 Difference]: Finished difference Result 5002 states and 8309 transitions. [2023-12-16 19:00:52,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 19:00:52,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 340.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1700 [2023-12-16 19:00:52,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:52,993 INFO L225 Difference]: With dead ends: 5002 [2023-12-16 19:00:52,993 INFO L226 Difference]: Without dead ends: 2631 [2023-12-16 19:00:52,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1700 GetRequests, 1696 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:00:52,997 INFO L413 NwaCegarLoop]: 4311 mSDtfsCounter, 11775 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11775 SdHoareTripleChecker+Valid, 5134 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:52,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11775 Valid, 5134 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:00:53,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2023-12-16 19:00:53,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2596. [2023-12-16 19:00:53,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2596 states, 2595 states have (on average 1.6601156069364162) internal successors, (4308), 2595 states have internal predecessors, (4308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:53,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2596 states to 2596 states and 4308 transitions. [2023-12-16 19:00:53,035 INFO L78 Accepts]: Start accepts. Automaton has 2596 states and 4308 transitions. Word has length 1700 [2023-12-16 19:00:53,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:53,035 INFO L495 AbstractCegarLoop]: Abstraction has 2596 states and 4308 transitions. [2023-12-16 19:00:53,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 340.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:53,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2596 states and 4308 transitions. [2023-12-16 19:00:53,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1702 [2023-12-16 19:00:53,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:53,059 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:00:53,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 19:00:53,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:00:53,273 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:53,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:53,274 INFO L85 PathProgramCache]: Analyzing trace with hash 864543598, now seen corresponding path program 1 times [2023-12-16 19:00:53,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:53,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488829583] [2023-12-16 19:00:53,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:53,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:53,461 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 19:00:53,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1640185135] [2023-12-16 19:00:53,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:53,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:00:53,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:00:53,463 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 19:00:53,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 19:00:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:00:55,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 7573 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 19:00:55,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 19:00:56,747 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:00:56,747 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 19:00:56,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:00:56,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488829583] [2023-12-16 19:00:56,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 19:00:56,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640185135] [2023-12-16 19:00:56,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640185135] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:00:56,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:00:56,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:00:56,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931267051] [2023-12-16 19:00:56,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:00:56,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:00:56,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:00:56,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:00:56,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:00:56,753 INFO L87 Difference]: Start difference. First operand 2596 states and 4308 transitions. Second operand has 5 states, 5 states have (on average 340.2) internal successors, (1701), 5 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:59,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:00:59,000 INFO L93 Difference]: Finished difference Result 7260 states and 12066 transitions. [2023-12-16 19:00:59,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:00:59,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 340.2) internal successors, (1701), 5 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1701 [2023-12-16 19:00:59,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:00:59,010 INFO L225 Difference]: With dead ends: 7260 [2023-12-16 19:00:59,010 INFO L226 Difference]: Without dead ends: 4889 [2023-12-16 19:00:59,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1702 GetRequests, 1697 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 19:00:59,015 INFO L413 NwaCegarLoop]: 3480 mSDtfsCounter, 3361 mSDsluCounter, 9970 mSDsCounter, 0 mSdLazyCounter, 3142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3361 SdHoareTripleChecker+Valid, 13450 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:00:59,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3361 Valid, 13450 Invalid, 3142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3142 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 19:00:59,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4889 states. [2023-12-16 19:00:59,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4889 to 3299. [2023-12-16 19:00:59,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3299 states, 3298 states have (on average 1.659490600363857) internal successors, (5473), 3298 states have internal predecessors, (5473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:59,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 5473 transitions. [2023-12-16 19:00:59,072 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 5473 transitions. Word has length 1701 [2023-12-16 19:00:59,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:00:59,073 INFO L495 AbstractCegarLoop]: Abstraction has 3299 states and 5473 transitions. [2023-12-16 19:00:59,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 340.2) internal successors, (1701), 5 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:00:59,074 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 5473 transitions. [2023-12-16 19:00:59,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1703 [2023-12-16 19:00:59,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:00:59,097 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:00:59,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 19:00:59,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-16 19:00:59,317 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:00:59,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:00:59,318 INFO L85 PathProgramCache]: Analyzing trace with hash 378152691, now seen corresponding path program 1 times [2023-12-16 19:00:59,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:00:59,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517893524] [2023-12-16 19:00:59,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:59,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:00:59,491 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 19:00:59,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [310276895] [2023-12-16 19:00:59,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:00:59,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:00:59,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:00:59,493 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 19:00:59,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 19:01:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:01:01,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 7576 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 19:01:01,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 19:01:02,692 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:01:02,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 19:01:02,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:01:02,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517893524] [2023-12-16 19:01:02,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 19:01:02,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310276895] [2023-12-16 19:01:02,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310276895] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:01:02,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:01:02,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 19:01:02,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066466963] [2023-12-16 19:01:02,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:01:02,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:01:02,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:01:02,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:01:02,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:01:02,698 INFO L87 Difference]: Start difference. First operand 3299 states and 5473 transitions. Second operand has 6 states, 6 states have (on average 283.6666666666667) internal successors, (1702), 6 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 19:01:04,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 19:01:04,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1703 GetRequests, 1697 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:01:04,401 INFO L413 NwaCegarLoop]: 3231 mSDtfsCounter, 5807 mSDsluCounter, 7476 mSDsCounter, 0 mSdLazyCounter, 3063 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5807 SdHoareTripleChecker+Valid, 10707 SdHoareTripleChecker+Invalid, 3064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 19:01:04,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5807 Valid, 10707 Invalid, 3064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3063 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 19:01:04,402 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 19:01:04,411 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 19:01:04,423 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 19:01:04,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 19:01:04,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-16 19:01:04,625 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (3299states) and FLOYD_HOARE automaton (currently 7 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (3820 states constructed, input type IntersectNwa). [2023-12-16 19:01:04,628 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:01:04,630 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 19:01:04,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:01:04 BoogieIcfgContainer [2023-12-16 19:01:04,631 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 19:01:04,631 INFO L158 Benchmark]: Toolchain (without parser) took 47317.79ms. Allocated memory was 249.6MB in the beginning and 2.0GB in the end (delta: 1.7GB). Free memory was 196.1MB in the beginning and 736.6MB in the end (delta: -540.4MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2023-12-16 19:01:04,631 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 186.6MB. Free memory is still 134.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 19:01:04,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 988.09ms. Allocated memory is still 249.6MB. Free memory was 195.7MB in the beginning and 139.3MB in the end (delta: 56.4MB). Peak memory consumption was 59.0MB. Max. memory is 8.0GB. [2023-12-16 19:01:04,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 1221.29ms. Allocated memory was 249.6MB in the beginning and 499.1MB in the end (delta: 249.6MB). Free memory was 139.3MB in the beginning and 303.3MB in the end (delta: -164.1MB). Peak memory consumption was 186.1MB. Max. memory is 8.0GB. [2023-12-16 19:01:04,632 INFO L158 Benchmark]: Boogie Preprocessor took 1146.01ms. Allocated memory was 499.1MB in the beginning and 998.2MB in the end (delta: 499.1MB). Free memory was 303.3MB in the beginning and 744.8MB in the end (delta: -441.4MB). Peak memory consumption was 58.2MB. Max. memory is 8.0GB. [2023-12-16 19:01:04,632 INFO L158 Benchmark]: RCFGBuilder took 6328.75ms. Allocated memory was 998.2MB in the beginning and 2.0GB in the end (delta: 998.2MB). Free memory was 744.8MB in the beginning and 1.1GB in the end (delta: -361.4MB). Peak memory consumption was 638.6MB. Max. memory is 8.0GB. [2023-12-16 19:01:04,632 INFO L158 Benchmark]: TraceAbstraction took 37627.09ms. Allocated memory is still 2.0GB. Free memory was 1.1GB in the beginning and 736.6MB in the end (delta: 369.1MB). Peak memory consumption was 370.2MB. Max. memory is 8.0GB. [2023-12-16 19:01:04,634 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 186.6MB. Free memory is still 134.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 988.09ms. Allocated memory is still 249.6MB. Free memory was 195.7MB in the beginning and 139.3MB in the end (delta: 56.4MB). Peak memory consumption was 59.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 1221.29ms. Allocated memory was 249.6MB in the beginning and 499.1MB in the end (delta: 249.6MB). Free memory was 139.3MB in the beginning and 303.3MB in the end (delta: -164.1MB). Peak memory consumption was 186.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 1146.01ms. Allocated memory was 499.1MB in the beginning and 998.2MB in the end (delta: 499.1MB). Free memory was 303.3MB in the beginning and 744.8MB in the end (delta: -441.4MB). Peak memory consumption was 58.2MB. Max. memory is 8.0GB. * RCFGBuilder took 6328.75ms. Allocated memory was 998.2MB in the beginning and 2.0GB in the end (delta: 998.2MB). Free memory was 744.8MB in the beginning and 1.1GB in the end (delta: -361.4MB). Peak memory consumption was 638.6MB. Max. memory is 8.0GB. * TraceAbstraction took 37627.09ms. Allocated memory is still 2.0GB. Free memory was 1.1GB in the beginning and 736.6MB in the end (delta: 369.1MB). Peak memory consumption was 370.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was constructing difference of abstraction (3299states) and FLOYD_HOARE automaton (currently 7 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (3820 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2480 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.6s, OverallIterations: 17, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 15.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163186 SdHoareTripleChecker+Valid, 12.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163186 mSDsluCounter, 216977 SdHoareTripleChecker+Invalid, 10.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 150694 mSDsCounter, 392 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16310 IncrementalHoareTripleChecker+Invalid, 16702 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 392 mSolverCounterUnsat, 66283 mSDtfsCounter, 16310 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8602 GetRequests, 8514 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3299occurred in iteration=16, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 16 MinimizatonAttempts, 27205 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.8s SsaConstructionTime, 5.2s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 10476 NumberOfCodeBlocks, 10476 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 10459 ConstructedInterpolants, 0 QuantifiedInterpolants, 28406 SizeOfPredicates, 10 NumberOfNonLiveVariables, 37862 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 355/355 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown