/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-81.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 05:40:02,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 05:40:02,217 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 05:40:02,220 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 05:40:02,220 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 05:40:02,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 05:40:02,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 05:40:02,261 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 05:40:02,262 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 05:40:02,262 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 05:40:02,262 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 05:40:02,262 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 05:40:02,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 05:40:02,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 05:40:02,263 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 05:40:02,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 05:40:02,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 05:40:02,264 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 05:40:02,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 05:40:02,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 05:40:02,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 05:40:02,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 05:40:02,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 05:40:02,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 05:40:02,266 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 05:40:02,266 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 05:40:02,266 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 05:40:02,266 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 05:40:02,267 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 05:40:02,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 05:40:02,267 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 05:40:02,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 05:40:02,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 05:40:02,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 05:40:02,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 05:40:02,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 05:40:02,268 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 05:40:02,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 05:40:02,269 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 05:40:02,269 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 05:40:02,269 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 05:40:02,271 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 05:40:02,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 05:40:02,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 05:40:02,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 05:40:02,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 05:40:02,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 05:40:02,512 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 05:40:02,514 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 05:40:02,515 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-81.i [2023-12-19 05:40:03,666 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 05:40:03,844 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 05:40:03,846 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-81.i [2023-12-19 05:40:03,855 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50d131bba/4e583f9ea55947aeb097e30b6341a317/FLAGdcae39260 [2023-12-19 05:40:03,870 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50d131bba/4e583f9ea55947aeb097e30b6341a317 [2023-12-19 05:40:03,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 05:40:03,873 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 05:40:03,874 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 05:40:03,874 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 05:40:03,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 05:40:03,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:40:03" (1/1) ... [2023-12-19 05:40:03,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d809480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:03, skipping insertion in model container [2023-12-19 05:40:03,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:40:03" (1/1) ... [2023-12-19 05:40:03,911 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 05:40:04,036 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-81.i[919,932] [2023-12-19 05:40:04,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 05:40:04,084 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 05:40:04,094 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-81.i[919,932] [2023-12-19 05:40:04,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 05:40:04,162 INFO L206 MainTranslator]: Completed translation [2023-12-19 05:40:04,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:04 WrapperNode [2023-12-19 05:40:04,164 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 05:40:04,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 05:40:04,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 05:40:04,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 05:40:04,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:04" (1/1) ... [2023-12-19 05:40:04,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:04" (1/1) ... [2023-12-19 05:40:04,225 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 180 [2023-12-19 05:40:04,225 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 05:40:04,226 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 05:40:04,226 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 05:40:04,226 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 05:40:04,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:04" (1/1) ... [2023-12-19 05:40:04,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:04" (1/1) ... [2023-12-19 05:40:04,253 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:04" (1/1) ... [2023-12-19 05:40:04,309 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]. [2023-12-19 05:40:04,309 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:04" (1/1) ... [2023-12-19 05:40:04,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:04" (1/1) ... [2023-12-19 05:40:04,317 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:04" (1/1) ... [2023-12-19 05:40:04,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:04" (1/1) ... [2023-12-19 05:40:04,346 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:04" (1/1) ... [2023-12-19 05:40:04,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:04" (1/1) ... [2023-12-19 05:40:04,351 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 05:40:04,352 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 05:40:04,352 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 05:40:04,352 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 05:40:04,353 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:04" (1/1) ... [2023-12-19 05:40:04,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 05:40:04,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:40:04,409 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) [2023-12-19 05:40:04,432 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 [2023-12-19 05:40:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 05:40:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 05:40:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 05:40:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 05:40:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 05:40:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 05:40:04,518 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 05:40:04,520 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 05:40:04,885 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 05:40:04,916 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 05:40:04,916 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 05:40:04,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:40:04 BoogieIcfgContainer [2023-12-19 05:40:04,916 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 05:40:04,918 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 05:40:04,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 05:40:04,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 05:40:04,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:40:03" (1/3) ... [2023-12-19 05:40:04,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a85fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:40:04, skipping insertion in model container [2023-12-19 05:40:04,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:04" (2/3) ... [2023-12-19 05:40:04,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a85fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:40:04, skipping insertion in model container [2023-12-19 05:40:04,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:40:04" (3/3) ... [2023-12-19 05:40:04,923 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-81.i [2023-12-19 05:40:04,940 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 05:40:04,940 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 05:40:04,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 05:40:04,990 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;@38602fa6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 05:40:04,991 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 05:40:04,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 40 states have internal predecessors, (57), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 05:40:05,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-19 05:40:05,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:40:05,011 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:40:05,012 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:40:05,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:40:05,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1352908301, now seen corresponding path program 1 times [2023-12-19 05:40:05,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:40:05,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520840907] [2023-12-19 05:40:05,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:40:05,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:40:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:40:05,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:40:05,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520840907] [2023-12-19 05:40:05,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 05:40:05,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622054922] [2023-12-19 05:40:05,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:40:05,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:40:05,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:40:05,252 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) [2023-12-19 05:40:05,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 05:40:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:40:05,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 05:40:05,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:40:05,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2023-12-19 05:40:05,499 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 05:40:05,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622054922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 05:40:05,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 05:40:05,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 05:40:05,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546644879] [2023-12-19 05:40:05,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 05:40:05,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 05:40:05,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:40:05,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 05:40:05,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 05:40:05,533 INFO L87 Difference]: Start difference. First operand has 68 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 40 states have internal predecessors, (57), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-19 05:40:05,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:40:05,589 INFO L93 Difference]: Finished difference Result 133 states and 242 transitions. [2023-12-19 05:40:05,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 05:40:05,591 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 158 [2023-12-19 05:40:05,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:40:05,600 INFO L225 Difference]: With dead ends: 133 [2023-12-19 05:40:05,600 INFO L226 Difference]: Without dead ends: 66 [2023-12-19 05:40:05,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 05:40:05,607 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 05:40:05,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 05:40:05,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-19 05:40:05,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-12-19 05:40:05,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 38 states have (on average 1.368421052631579) internal successors, (52), 38 states have internal predecessors, (52), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 05:40:05,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 104 transitions. [2023-12-19 05:40:05,667 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 104 transitions. Word has length 158 [2023-12-19 05:40:05,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:40:05,668 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 104 transitions. [2023-12-19 05:40:05,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-19 05:40:05,669 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 104 transitions. [2023-12-19 05:40:05,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-19 05:40:05,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:40:05,678 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:40:05,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 05:40:05,886 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,SelfDestructingSolverStorable0 [2023-12-19 05:40:05,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:40:05,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:40:05,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2140315469, now seen corresponding path program 1 times [2023-12-19 05:40:05,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:40:05,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215148548] [2023-12-19 05:40:05,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:40:05,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:40:05,963 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:40:05,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1989813767] [2023-12-19 05:40:05,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:40:05,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:40:05,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:40:05,987 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) [2023-12-19 05:40:05,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 05:40:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:40:06,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-19 05:40:06,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:40:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 610 proven. 117 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2023-12-19 05:40:06,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 05:40:06,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 27 proven. 120 refuted. 0 times theorem prover too weak. 1153 trivial. 0 not checked. [2023-12-19 05:40:06,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:40:06,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215148548] [2023-12-19 05:40:06,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:40:06,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989813767] [2023-12-19 05:40:06,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989813767] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 05:40:06,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 05:40:06,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-19 05:40:06,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146413503] [2023-12-19 05:40:06,966 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 05:40:06,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 05:40:06,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:40:06,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 05:40:06,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-12-19 05:40:06,972 INFO L87 Difference]: Start difference. First operand 66 states and 104 transitions. Second operand has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 5 states have call successors, (51), 3 states have call predecessors, (51), 7 states have return successors, (52), 4 states have call predecessors, (52), 5 states have call successors, (52) [2023-12-19 05:40:07,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:40:07,561 INFO L93 Difference]: Finished difference Result 223 states and 328 transitions. [2023-12-19 05:40:07,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-19 05:40:07,562 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 5 states have call successors, (51), 3 states have call predecessors, (51), 7 states have return successors, (52), 4 states have call predecessors, (52), 5 states have call successors, (52) Word has length 158 [2023-12-19 05:40:07,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:40:07,569 INFO L225 Difference]: With dead ends: 223 [2023-12-19 05:40:07,569 INFO L226 Difference]: Without dead ends: 158 [2023-12-19 05:40:07,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=782, Unknown=0, NotChecked=0, Total=1122 [2023-12-19 05:40:07,576 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 197 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 05:40:07,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 234 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 05:40:07,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-12-19 05:40:07,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 112. [2023-12-19 05:40:07,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 71 states have internal predecessors, (90), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 05:40:07,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 162 transitions. [2023-12-19 05:40:07,606 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 162 transitions. Word has length 158 [2023-12-19 05:40:07,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:40:07,607 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 162 transitions. [2023-12-19 05:40:07,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 5 states have call successors, (51), 3 states have call predecessors, (51), 7 states have return successors, (52), 4 states have call predecessors, (52), 5 states have call successors, (52) [2023-12-19 05:40:07,608 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 162 transitions. [2023-12-19 05:40:07,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-19 05:40:07,610 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:40:07,611 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:40:07,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 05:40:07,816 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,SelfDestructingSolverStorable1 [2023-12-19 05:40:07,817 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:40:07,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:40:07,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1584998970, now seen corresponding path program 1 times [2023-12-19 05:40:07,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:40:07,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391063532] [2023-12-19 05:40:07,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:40:07,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:40:07,855 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:40:07,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [18394871] [2023-12-19 05:40:07,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:40:07,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:40:07,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:40:07,857 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) [2023-12-19 05:40:07,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 05:40:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:40:07,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-19 05:40:07,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:40:08,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 585 proven. 51 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2023-12-19 05:40:08,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 05:40:08,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 24 proven. 51 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2023-12-19 05:40:08,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:40:08,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391063532] [2023-12-19 05:40:08,343 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:40:08,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18394871] [2023-12-19 05:40:08,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18394871] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 05:40:08,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 05:40:08,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2023-12-19 05:40:08,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930087246] [2023-12-19 05:40:08,344 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 05:40:08,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 05:40:08,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:40:08,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 05:40:08,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-19 05:40:08,345 INFO L87 Difference]: Start difference. First operand 112 states and 162 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2023-12-19 05:40:08,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:40:08,767 INFO L93 Difference]: Finished difference Result 309 states and 438 transitions. [2023-12-19 05:40:08,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 05:40:08,768 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 159 [2023-12-19 05:40:08,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:40:08,772 INFO L225 Difference]: With dead ends: 309 [2023-12-19 05:40:08,772 INFO L226 Difference]: Without dead ends: 198 [2023-12-19 05:40:08,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2023-12-19 05:40:08,773 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 122 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 05:40:08,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 428 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 05:40:08,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-12-19 05:40:08,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 153. [2023-12-19 05:40:08,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 94 states have (on average 1.1914893617021276) internal successors, (112), 96 states have internal predecessors, (112), 47 states have call successors, (47), 11 states have call predecessors, (47), 11 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-19 05:40:08,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 206 transitions. [2023-12-19 05:40:08,791 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 206 transitions. Word has length 159 [2023-12-19 05:40:08,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:40:08,791 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 206 transitions. [2023-12-19 05:40:08,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2023-12-19 05:40:08,792 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 206 transitions. [2023-12-19 05:40:08,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-19 05:40:08,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:40:08,793 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:40:08,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 05:40:08,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:40:09,000 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:40:09,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:40:09,000 INFO L85 PathProgramCache]: Analyzing trace with hash -705105138, now seen corresponding path program 1 times [2023-12-19 05:40:09,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:40:09,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028007341] [2023-12-19 05:40:09,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:40:09,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:40:09,040 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:40:09,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [979771489] [2023-12-19 05:40:09,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:40:09,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:40:09,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:40:09,058 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) [2023-12-19 05:40:09,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 05:40:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:40:09,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-19 05:40:09,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:40:09,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 25 proven. 75 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-19 05:40:09,546 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 05:40:09,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2023-12-19 05:40:09,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:40:09,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028007341] [2023-12-19 05:40:09,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:40:09,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979771489] [2023-12-19 05:40:09,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979771489] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 05:40:09,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 05:40:09,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2023-12-19 05:40:09,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143799952] [2023-12-19 05:40:09,871 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 05:40:09,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 05:40:09,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:40:09,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 05:40:09,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-12-19 05:40:09,873 INFO L87 Difference]: Start difference. First operand 153 states and 206 transitions. Second operand has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 4 states have call successors, (52), 3 states have call predecessors, (52), 4 states have return successors, (52), 2 states have call predecessors, (52), 4 states have call successors, (52) [2023-12-19 05:40:10,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:40:10,911 INFO L93 Difference]: Finished difference Result 412 states and 565 transitions. [2023-12-19 05:40:10,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-19 05:40:10,911 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 4 states have call successors, (52), 3 states have call predecessors, (52), 4 states have return successors, (52), 2 states have call predecessors, (52), 4 states have call successors, (52) Word has length 160 [2023-12-19 05:40:10,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:40:10,914 INFO L225 Difference]: With dead ends: 412 [2023-12-19 05:40:10,914 INFO L226 Difference]: Without dead ends: 293 [2023-12-19 05:40:10,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=317, Invalid=873, Unknown=0, NotChecked=0, Total=1190 [2023-12-19 05:40:10,915 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 546 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 05:40:10,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 377 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 05:40:10,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-12-19 05:40:10,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 232. [2023-12-19 05:40:10,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 142 states have (on average 1.1690140845070423) internal successors, (166), 144 states have internal predecessors, (166), 73 states have call successors, (73), 16 states have call predecessors, (73), 16 states have return successors, (73), 71 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-19 05:40:10,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 312 transitions. [2023-12-19 05:40:10,948 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 312 transitions. Word has length 160 [2023-12-19 05:40:10,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:40:10,948 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 312 transitions. [2023-12-19 05:40:10,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 4 states have call successors, (52), 3 states have call predecessors, (52), 4 states have return successors, (52), 2 states have call predecessors, (52), 4 states have call successors, (52) [2023-12-19 05:40:10,949 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 312 transitions. [2023-12-19 05:40:10,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-19 05:40:10,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:40:10,951 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:40:10,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-19 05:40:11,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:40:11,157 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:40:11,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:40:11,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1716222388, now seen corresponding path program 1 times [2023-12-19 05:40:11,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:40:11,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157232109] [2023-12-19 05:40:11,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:40:11,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:40:11,185 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:40:11,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2056819984] [2023-12-19 05:40:11,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:40:11,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:40:11,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:40:11,187 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) [2023-12-19 05:40:11,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 05:40:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:40:11,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-19 05:40:11,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:40:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 52 proven. 144 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-12-19 05:40:20,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 05:40:26,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-19 05:40:26,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:40:26,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157232109] [2023-12-19 05:40:26,990 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:40:26,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056819984] [2023-12-19 05:40:26,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056819984] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 05:40:26,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 05:40:26,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 21 [2023-12-19 05:40:26,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729728405] [2023-12-19 05:40:26,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 05:40:26,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 05:40:26,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:40:26,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 05:40:26,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2023-12-19 05:40:26,992 INFO L87 Difference]: Start difference. First operand 232 states and 312 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:40:28,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:40:28,072 INFO L93 Difference]: Finished difference Result 491 states and 650 transitions. [2023-12-19 05:40:28,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 05:40:28,073 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 160 [2023-12-19 05:40:28,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:40:28,075 INFO L225 Difference]: With dead ends: 491 [2023-12-19 05:40:28,075 INFO L226 Difference]: Without dead ends: 336 [2023-12-19 05:40:28,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2023-12-19 05:40:28,077 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 112 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 05:40:28,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 423 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 05:40:28,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-19 05:40:28,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 254. [2023-12-19 05:40:28,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 164 states have (on average 1.1951219512195121) internal successors, (196), 166 states have internal predecessors, (196), 73 states have call successors, (73), 16 states have call predecessors, (73), 16 states have return successors, (73), 71 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-19 05:40:28,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 342 transitions. [2023-12-19 05:40:28,105 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 342 transitions. Word has length 160 [2023-12-19 05:40:28,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:40:28,106 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 342 transitions. [2023-12-19 05:40:28,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:40:28,106 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 342 transitions. [2023-12-19 05:40:28,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-19 05:40:28,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:40:28,107 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:40:28,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-19 05:40:28,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:40:28,313 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:40:28,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:40:28,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1458056950, now seen corresponding path program 1 times [2023-12-19 05:40:28,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:40:28,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448832609] [2023-12-19 05:40:28,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:40:28,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:40:28,347 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:40:28,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784520996] [2023-12-19 05:40:28,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:40:28,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:40:28,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:40:28,351 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 05:40:28,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 05:40:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:40:28,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 65 conjunts are in the unsatisfiable core [2023-12-19 05:40:28,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:40:50,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 738 proven. 291 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-12-19 05:40:50,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 05:40:56,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-19 05:40:56,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:40:56,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448832609] [2023-12-19 05:40:56,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:40:56,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784520996] [2023-12-19 05:40:56,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784520996] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 05:40:56,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 05:40:56,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [37] total 44 [2023-12-19 05:40:56,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094364138] [2023-12-19 05:40:56,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 05:40:56,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 05:40:56,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:40:56,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 05:40:56,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=1489, Unknown=0, NotChecked=0, Total=1892 [2023-12-19 05:40:56,727 INFO L87 Difference]: Start difference. First operand 254 states and 342 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:40:57,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:40:57,895 INFO L93 Difference]: Finished difference Result 502 states and 663 transitions. [2023-12-19 05:40:57,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 05:40:57,896 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 160 [2023-12-19 05:40:57,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:40:57,899 INFO L225 Difference]: With dead ends: 502 [2023-12-19 05:40:57,899 INFO L226 Difference]: Without dead ends: 336 [2023-12-19 05:40:57,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=435, Invalid=1821, Unknown=0, NotChecked=0, Total=2256 [2023-12-19 05:40:57,901 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 136 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-19 05:40:57,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 325 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-19 05:40:57,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-19 05:40:57,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 254. [2023-12-19 05:40:57,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 164 states have (on average 1.1951219512195121) internal successors, (196), 166 states have internal predecessors, (196), 73 states have call successors, (73), 16 states have call predecessors, (73), 16 states have return successors, (73), 71 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-19 05:40:57,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 342 transitions. [2023-12-19 05:40:57,938 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 342 transitions. Word has length 160 [2023-12-19 05:40:57,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:40:57,939 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 342 transitions. [2023-12-19 05:40:57,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:40:57,939 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 342 transitions. [2023-12-19 05:40:57,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-19 05:40:57,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:40:57,941 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:40:57,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-19 05:40:58,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:40:58,148 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:40:58,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:40:58,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1991938894, now seen corresponding path program 1 times [2023-12-19 05:40:58,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:40:58,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489958374] [2023-12-19 05:40:58,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:40:58,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:40:58,160 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:40:58,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2078185122] [2023-12-19 05:40:58,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:40:58,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:40:58,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:40:58,193 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 05:40:58,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 05:40:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:40:58,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-19 05:40:58,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:40:59,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 58 proven. 207 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-12-19 05:40:59,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 05:40:59,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 1153 trivial. 0 not checked. [2023-12-19 05:40:59,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:40:59,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489958374] [2023-12-19 05:40:59,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:40:59,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078185122] [2023-12-19 05:40:59,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078185122] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 05:40:59,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 05:40:59,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2023-12-19 05:40:59,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106449999] [2023-12-19 05:40:59,839 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 05:40:59,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-19 05:40:59,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:40:59,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-19 05:40:59,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2023-12-19 05:40:59,841 INFO L87 Difference]: Start difference. First operand 254 states and 342 transitions. Second operand has 24 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 6 states have call successors, (52), 4 states have call predecessors, (52), 7 states have return successors, (52), 4 states have call predecessors, (52), 6 states have call successors, (52) [2023-12-19 05:41:01,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:41:01,460 INFO L93 Difference]: Finished difference Result 514 states and 681 transitions. [2023-12-19 05:41:01,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-19 05:41:01,468 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 6 states have call successors, (52), 4 states have call predecessors, (52), 7 states have return successors, (52), 4 states have call predecessors, (52), 6 states have call successors, (52) Word has length 160 [2023-12-19 05:41:01,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:41:01,472 INFO L225 Difference]: With dead ends: 514 [2023-12-19 05:41:01,472 INFO L226 Difference]: Without dead ends: 336 [2023-12-19 05:41:01,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=594, Invalid=1298, Unknown=0, NotChecked=0, Total=1892 [2023-12-19 05:41:01,474 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 406 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 05:41:01,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 490 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 05:41:01,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-19 05:41:01,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 260. [2023-12-19 05:41:01,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 169 states have (on average 1.1775147928994083) internal successors, (199), 171 states have internal predecessors, (199), 73 states have call successors, (73), 17 states have call predecessors, (73), 17 states have return successors, (73), 71 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-19 05:41:01,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 345 transitions. [2023-12-19 05:41:01,528 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 345 transitions. Word has length 160 [2023-12-19 05:41:01,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:41:01,528 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 345 transitions. [2023-12-19 05:41:01,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 6 states have call successors, (52), 4 states have call predecessors, (52), 7 states have return successors, (52), 4 states have call predecessors, (52), 6 states have call successors, (52) [2023-12-19 05:41:01,529 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 345 transitions. [2023-12-19 05:41:01,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-19 05:41:01,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:41:01,530 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:41:01,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 05:41:01,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:41:01,737 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:41:01,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:41:01,738 INFO L85 PathProgramCache]: Analyzing trace with hash 251808950, now seen corresponding path program 1 times [2023-12-19 05:41:01,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:41:01,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470757350] [2023-12-19 05:41:01,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:41:01,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:41:01,758 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:41:01,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305898375] [2023-12-19 05:41:01,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:41:01,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:41:01,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:41:01,760 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 05:41:01,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 05:41:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:41:01,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 05:41:01,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:41:01,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-19 05:41:01,885 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 05:41:01,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:41:01,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470757350] [2023-12-19 05:41:01,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:41:01,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305898375] [2023-12-19 05:41:01,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305898375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 05:41:01,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 05:41:01,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 05:41:01,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79272464] [2023-12-19 05:41:01,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 05:41:01,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 05:41:01,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:41:01,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 05:41:01,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 05:41:01,887 INFO L87 Difference]: Start difference. First operand 260 states and 345 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:41:02,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:41:02,014 INFO L93 Difference]: Finished difference Result 513 states and 664 transitions. [2023-12-19 05:41:02,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 05:41:02,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 160 [2023-12-19 05:41:02,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:41:02,016 INFO L225 Difference]: With dead ends: 513 [2023-12-19 05:41:02,016 INFO L226 Difference]: Without dead ends: 340 [2023-12-19 05:41:02,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 05:41:02,018 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 32 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 05:41:02,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 191 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 05:41:02,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-12-19 05:41:02,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 336. [2023-12-19 05:41:02,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 231 states have (on average 1.1385281385281385) internal successors, (263), 235 states have internal predecessors, (263), 81 states have call successors, (81), 23 states have call predecessors, (81), 23 states have return successors, (81), 77 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-19 05:41:02,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 425 transitions. [2023-12-19 05:41:02,076 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 425 transitions. Word has length 160 [2023-12-19 05:41:02,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:41:02,076 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 425 transitions. [2023-12-19 05:41:02,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:41:02,077 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 425 transitions. [2023-12-19 05:41:02,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-19 05:41:02,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:41:02,078 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:41:02,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-19 05:41:02,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-19 05:41:02,284 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:41:02,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:41:02,284 INFO L85 PathProgramCache]: Analyzing trace with hash -198476362, now seen corresponding path program 1 times [2023-12-19 05:41:02,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:41:02,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802565276] [2023-12-19 05:41:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:41:02,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:41:02,304 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:41:02,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2045488376] [2023-12-19 05:41:02,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:41:02,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:41:02,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:41:02,306 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 05:41:02,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 05:41:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:41:02,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-19 05:41:02,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:41:04,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 645 proven. 114 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2023-12-19 05:41:04,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 05:41:09,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-19 05:41:09,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:41:09,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802565276] [2023-12-19 05:41:09,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:41:09,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045488376] [2023-12-19 05:41:09,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045488376] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 05:41:09,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 05:41:09,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [16] total 23 [2023-12-19 05:41:09,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602906343] [2023-12-19 05:41:09,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 05:41:09,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 05:41:09,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:41:09,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 05:41:09,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2023-12-19 05:41:09,817 INFO L87 Difference]: Start difference. First operand 336 states and 425 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:41:11,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:41:11,157 INFO L93 Difference]: Finished difference Result 543 states and 688 transitions. [2023-12-19 05:41:11,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 05:41:11,159 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 160 [2023-12-19 05:41:11,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:41:11,161 INFO L225 Difference]: With dead ends: 543 [2023-12-19 05:41:11,161 INFO L226 Difference]: Without dead ends: 375 [2023-12-19 05:41:11,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=215, Invalid=715, Unknown=0, NotChecked=0, Total=930 [2023-12-19 05:41:11,163 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 124 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 05:41:11,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 487 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 05:41:11,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-12-19 05:41:11,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 344. [2023-12-19 05:41:11,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 239 states have (on average 1.1422594142259415) internal successors, (273), 243 states have internal predecessors, (273), 81 states have call successors, (81), 23 states have call predecessors, (81), 23 states have return successors, (81), 77 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-19 05:41:11,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 435 transitions. [2023-12-19 05:41:11,231 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 435 transitions. Word has length 160 [2023-12-19 05:41:11,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:41:11,232 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 435 transitions. [2023-12-19 05:41:11,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:41:11,232 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 435 transitions. [2023-12-19 05:41:11,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-19 05:41:11,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:41:11,234 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:41:11,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-19 05:41:11,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:41:11,441 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:41:11,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:41:11,441 INFO L85 PathProgramCache]: Analyzing trace with hash 502588216, now seen corresponding path program 1 times [2023-12-19 05:41:11,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:41:11,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380442144] [2023-12-19 05:41:11,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:41:11,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:41:11,454 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:41:11,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [77627069] [2023-12-19 05:41:11,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:41:11,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:41:11,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:41:11,457 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 05:41:11,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 05:41:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:41:11,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-19 05:41:11,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:41:13,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 577 proven. 183 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-12-19 05:41:13,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 05:41:19,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-19 05:41:19,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:41:19,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380442144] [2023-12-19 05:41:19,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:41:19,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77627069] [2023-12-19 05:41:19,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77627069] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 05:41:19,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 05:41:19,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 24 [2023-12-19 05:41:19,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837642127] [2023-12-19 05:41:19,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 05:41:19,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 05:41:19,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:41:19,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 05:41:19,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2023-12-19 05:41:19,194 INFO L87 Difference]: Start difference. First operand 344 states and 435 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:41:20,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:41:20,325 INFO L93 Difference]: Finished difference Result 551 states and 697 transitions. [2023-12-19 05:41:20,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 05:41:20,327 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 160 [2023-12-19 05:41:20,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:41:20,329 INFO L225 Difference]: With dead ends: 551 [2023-12-19 05:41:20,329 INFO L226 Difference]: Without dead ends: 375 [2023-12-19 05:41:20,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2023-12-19 05:41:20,331 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 168 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 05:41:20,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 365 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 05:41:20,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-12-19 05:41:20,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 344. [2023-12-19 05:41:20,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 239 states have (on average 1.1422594142259415) internal successors, (273), 243 states have internal predecessors, (273), 81 states have call successors, (81), 23 states have call predecessors, (81), 23 states have return successors, (81), 77 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-19 05:41:20,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 435 transitions. [2023-12-19 05:41:20,424 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 435 transitions. Word has length 160 [2023-12-19 05:41:20,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:41:20,424 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 435 transitions. [2023-12-19 05:41:20,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:41:20,425 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 435 transitions. [2023-12-19 05:41:20,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-19 05:41:20,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:41:20,426 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:41:20,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 05:41:20,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 05:41:20,633 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:41:20,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:41:20,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1544944041, now seen corresponding path program 1 times [2023-12-19 05:41:20,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:41:20,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647867599] [2023-12-19 05:41:20,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:41:20,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:41:20,650 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:41:20,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [81900154] [2023-12-19 05:41:20,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:41:20,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:41:20,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:41:20,662 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 05:41:20,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 05:41:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:41:20,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-19 05:41:20,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:41:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 25 proven. 75 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-19 05:41:27,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 05:41:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-19 05:41:31,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:41:31,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647867599] [2023-12-19 05:41:31,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:41:31,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81900154] [2023-12-19 05:41:31,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81900154] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 05:41:31,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 05:41:31,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 18 [2023-12-19 05:41:31,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491400291] [2023-12-19 05:41:31,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 05:41:31,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 05:41:31,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:41:31,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 05:41:31,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2023-12-19 05:41:31,445 INFO L87 Difference]: Start difference. First operand 344 states and 435 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:41:32,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:41:32,753 INFO L93 Difference]: Finished difference Result 583 states and 732 transitions. [2023-12-19 05:41:32,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 05:41:32,754 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 161 [2023-12-19 05:41:32,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:41:32,756 INFO L225 Difference]: With dead ends: 583 [2023-12-19 05:41:32,756 INFO L226 Difference]: Without dead ends: 407 [2023-12-19 05:41:32,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2023-12-19 05:41:32,758 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 149 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 05:41:32,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 420 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 05:41:32,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-12-19 05:41:32,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 347. [2023-12-19 05:41:32,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 242 states have (on average 1.1446280991735538) internal successors, (277), 246 states have internal predecessors, (277), 81 states have call successors, (81), 23 states have call predecessors, (81), 23 states have return successors, (81), 77 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-19 05:41:32,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 439 transitions. [2023-12-19 05:41:32,830 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 439 transitions. Word has length 161 [2023-12-19 05:41:32,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:41:32,831 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 439 transitions. [2023-12-19 05:41:32,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:41:32,832 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 439 transitions. [2023-12-19 05:41:32,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-19 05:41:32,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:41:32,834 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:41:32,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 05:41:33,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 05:41:33,043 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:41:33,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:41:33,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1286778603, now seen corresponding path program 1 times [2023-12-19 05:41:33,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:41:33,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558741660] [2023-12-19 05:41:33,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:41:33,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:41:33,078 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:41:33,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1976132290] [2023-12-19 05:41:33,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:41:33,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:41:33,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:41:33,124 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 05:41:33,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-19 05:41:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:41:33,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-19 05:41:33,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:41:39,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 52 proven. 144 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-12-19 05:41:39,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 05:41:43,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-19 05:41:43,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:41:43,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558741660] [2023-12-19 05:41:43,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:41:43,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976132290] [2023-12-19 05:41:43,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976132290] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 05:41:43,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 05:41:43,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 21 [2023-12-19 05:41:43,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320716028] [2023-12-19 05:41:43,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 05:41:43,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 05:41:43,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:41:43,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 05:41:43,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2023-12-19 05:41:43,919 INFO L87 Difference]: Start difference. First operand 347 states and 439 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:41:44,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:41:44,916 INFO L93 Difference]: Finished difference Result 586 states and 735 transitions. [2023-12-19 05:41:44,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 05:41:44,917 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 161 [2023-12-19 05:41:44,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:41:44,919 INFO L225 Difference]: With dead ends: 586 [2023-12-19 05:41:44,919 INFO L226 Difference]: Without dead ends: 407 [2023-12-19 05:41:44,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=207, Invalid=663, Unknown=0, NotChecked=0, Total=870 [2023-12-19 05:41:44,921 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 141 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 05:41:44,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 430 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 05:41:44,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-12-19 05:41:44,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 344. [2023-12-19 05:41:44,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 239 states have (on average 1.1422594142259415) internal successors, (273), 243 states have internal predecessors, (273), 81 states have call successors, (81), 23 states have call predecessors, (81), 23 states have return successors, (81), 77 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-19 05:41:44,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 435 transitions. [2023-12-19 05:41:44,965 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 435 transitions. Word has length 161 [2023-12-19 05:41:44,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:41:44,966 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 435 transitions. [2023-12-19 05:41:44,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:41:44,966 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 435 transitions. [2023-12-19 05:41:44,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-19 05:41:44,967 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:41:44,967 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:41:44,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-19 05:41:45,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-19 05:41:45,173 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:41:45,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:41:45,174 INFO L85 PathProgramCache]: Analyzing trace with hash -908886639, now seen corresponding path program 1 times [2023-12-19 05:41:45,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:41:45,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68398762] [2023-12-19 05:41:45,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:41:45,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:41:45,190 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:41:45,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1448353055] [2023-12-19 05:41:45,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:41:45,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:41:45,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:41:45,203 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 05:41:45,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-19 05:41:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:41:45,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-19 05:41:45,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:41:56,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 52 proven. 144 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-12-19 05:41:56,653 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 05:42:02,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-19 05:42:02,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:42:02,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68398762] [2023-12-19 05:42:02,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:42:02,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448353055] [2023-12-19 05:42:02,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448353055] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 05:42:02,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 05:42:02,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [17] total 25 [2023-12-19 05:42:02,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974030278] [2023-12-19 05:42:02,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 05:42:02,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 05:42:02,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:42:02,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 05:42:02,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2023-12-19 05:42:02,251 INFO L87 Difference]: Start difference. First operand 344 states and 435 transitions. Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:42:04,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:42:04,482 INFO L93 Difference]: Finished difference Result 663 states and 834 transitions. [2023-12-19 05:42:04,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 05:42:04,483 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 161 [2023-12-19 05:42:04,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:42:04,485 INFO L225 Difference]: With dead ends: 663 [2023-12-19 05:42:04,485 INFO L226 Difference]: Without dead ends: 434 [2023-12-19 05:42:04,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=268, Invalid=854, Unknown=0, NotChecked=0, Total=1122 [2023-12-19 05:42:04,486 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 242 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 05:42:04,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 376 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 05:42:04,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-12-19 05:42:04,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 347. [2023-12-19 05:42:04,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 242 states have (on average 1.1528925619834711) internal successors, (279), 246 states have internal predecessors, (279), 81 states have call successors, (81), 23 states have call predecessors, (81), 23 states have return successors, (81), 77 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-19 05:42:04,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 441 transitions. [2023-12-19 05:42:04,570 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 441 transitions. Word has length 161 [2023-12-19 05:42:04,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:42:04,570 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 441 transitions. [2023-12-19 05:42:04,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:42:04,570 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 441 transitions. [2023-12-19 05:42:04,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-19 05:42:04,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:42:04,571 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:42:04,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-19 05:42:04,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-19 05:42:04,780 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:42:04,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:42:04,781 INFO L85 PathProgramCache]: Analyzing trace with hash -265080363, now seen corresponding path program 1 times [2023-12-19 05:42:04,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:42:04,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547303423] [2023-12-19 05:42:04,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:42:04,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:42:04,795 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:42:04,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [610888753] [2023-12-19 05:42:04,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:42:04,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:42:04,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:42:04,796 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 05:42:04,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-19 05:42:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:42:04,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-19 05:42:04,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:42:05,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 25 proven. 75 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-19 05:42:05,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 05:42:05,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2023-12-19 05:42:05,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:42:05,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547303423] [2023-12-19 05:42:05,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:42:05,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610888753] [2023-12-19 05:42:05,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610888753] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 05:42:05,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 05:42:05,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2023-12-19 05:42:05,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968429558] [2023-12-19 05:42:05,433 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 05:42:05,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 05:42:05,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:42:05,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 05:42:05,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-12-19 05:42:05,435 INFO L87 Difference]: Start difference. First operand 347 states and 441 transitions. Second operand has 13 states, 12 states have (on average 5.0) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (52), 3 states have call predecessors, (52), 4 states have return successors, (52), 2 states have call predecessors, (52), 4 states have call successors, (52) [2023-12-19 05:42:06,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:42:06,037 INFO L93 Difference]: Finished difference Result 621 states and 775 transitions. [2023-12-19 05:42:06,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 05:42:06,038 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.0) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (52), 3 states have call predecessors, (52), 4 states have return successors, (52), 2 states have call predecessors, (52), 4 states have call successors, (52) Word has length 161 [2023-12-19 05:42:06,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:42:06,040 INFO L225 Difference]: With dead ends: 621 [2023-12-19 05:42:06,040 INFO L226 Difference]: Without dead ends: 386 [2023-12-19 05:42:06,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 311 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2023-12-19 05:42:06,041 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 314 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 05:42:06,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 331 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 05:42:06,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-12-19 05:42:06,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 296. [2023-12-19 05:42:06,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 201 states have (on average 1.1293532338308458) internal successors, (227), 203 states have internal predecessors, (227), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 71 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-19 05:42:06,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 373 transitions. [2023-12-19 05:42:06,103 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 373 transitions. Word has length 161 [2023-12-19 05:42:06,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:42:06,104 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 373 transitions. [2023-12-19 05:42:06,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.0) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (52), 3 states have call predecessors, (52), 4 states have return successors, (52), 2 states have call predecessors, (52), 4 states have call successors, (52) [2023-12-19 05:42:06,104 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 373 transitions. [2023-12-19 05:42:06,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-19 05:42:06,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:42:06,105 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:42:06,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-19 05:42:06,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:42:06,311 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:42:06,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:42:06,311 INFO L85 PathProgramCache]: Analyzing trace with hash -650721201, now seen corresponding path program 1 times [2023-12-19 05:42:06,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:42:06,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510156239] [2023-12-19 05:42:06,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:42:06,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:42:06,322 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:42:06,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2041308225] [2023-12-19 05:42:06,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:42:06,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:42:06,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:42:06,324 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 05:42:06,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-19 05:42:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:42:06,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-19 05:42:06,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:42:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 52 proven. 144 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-12-19 05:42:19,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 05:42:25,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-19 05:42:25,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:42:25,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510156239] [2023-12-19 05:42:25,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:42:25,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041308225] [2023-12-19 05:42:25,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041308225] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 05:42:25,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 05:42:25,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [16] total 23 [2023-12-19 05:42:25,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910911769] [2023-12-19 05:42:25,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 05:42:25,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 05:42:25,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:42:25,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 05:42:25,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-19 05:42:25,411 INFO L87 Difference]: Start difference. First operand 296 states and 373 transitions. Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:42:28,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:42:28,436 INFO L93 Difference]: Finished difference Result 556 states and 690 transitions. [2023-12-19 05:42:28,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 05:42:28,438 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 161 [2023-12-19 05:42:28,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:42:28,441 INFO L225 Difference]: With dead ends: 556 [2023-12-19 05:42:28,441 INFO L226 Difference]: Without dead ends: 358 [2023-12-19 05:42:28,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=251, Invalid=741, Unknown=0, NotChecked=0, Total=992 [2023-12-19 05:42:28,455 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 142 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-19 05:42:28,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 526 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-19 05:42:28,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-12-19 05:42:28,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 285. [2023-12-19 05:42:28,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 190 states have (on average 1.1263157894736842) internal successors, (214), 192 states have internal predecessors, (214), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 71 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-19 05:42:28,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 360 transitions. [2023-12-19 05:42:28,568 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 360 transitions. Word has length 161 [2023-12-19 05:42:28,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:42:28,569 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 360 transitions. [2023-12-19 05:42:28,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:42:28,569 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 360 transitions. [2023-12-19 05:42:28,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-19 05:42:28,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:42:28,570 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:42:28,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-19 05:42:28,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-19 05:42:28,777 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:42:28,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:42:28,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2046242523, now seen corresponding path program 1 times [2023-12-19 05:42:28,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:42:28,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284262524] [2023-12-19 05:42:28,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:42:28,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:42:28,842 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:42:28,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1741172668] [2023-12-19 05:42:28,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:42:28,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:42:28,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:42:28,856 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 05:42:28,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-19 05:42:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:42:28,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-19 05:42:28,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:43:41,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-19 05:43:41,415 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 05:43:41,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 05:43:41,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284262524] [2023-12-19 05:43:41,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 05:43:41,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741172668] [2023-12-19 05:43:41,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741172668] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 05:43:41,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 05:43:41,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 05:43:41,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625238396] [2023-12-19 05:43:41,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 05:43:41,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 05:43:41,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 05:43:41,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 05:43:41,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-19 05:43:41,418 INFO L87 Difference]: Start difference. First operand 285 states and 360 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:43:41,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 05:43:41,745 INFO L93 Difference]: Finished difference Result 334 states and 411 transitions. [2023-12-19 05:43:41,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 05:43:41,745 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 162 [2023-12-19 05:43:41,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 05:43:41,747 INFO L225 Difference]: With dead ends: 334 [2023-12-19 05:43:41,747 INFO L226 Difference]: Without dead ends: 332 [2023-12-19 05:43:41,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-19 05:43:41,749 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 106 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 05:43:41,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 388 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 05:43:41,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-12-19 05:43:41,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 299. [2023-12-19 05:43:41,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 201 states have (on average 1.1194029850746268) internal successors, (225), 203 states have internal predecessors, (225), 73 states have call successors, (73), 24 states have call predecessors, (73), 24 states have return successors, (73), 71 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-19 05:43:41,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 371 transitions. [2023-12-19 05:43:41,822 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 371 transitions. Word has length 162 [2023-12-19 05:43:41,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 05:43:41,823 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 371 transitions. [2023-12-19 05:43:41,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-19 05:43:41,823 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 371 transitions. [2023-12-19 05:43:41,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-19 05:43:41,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 05:43:41,824 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:43:41,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-19 05:43:42,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-19 05:43:42,031 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 05:43:42,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 05:43:42,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1305677314, now seen corresponding path program 1 times [2023-12-19 05:43:42,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 05:43:42,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979868946] [2023-12-19 05:43:42,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:43:42,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 05:43:42,042 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 05:43:42,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [516174195] [2023-12-19 05:43:42,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 05:43:42,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 05:43:42,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 05:43:42,044 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 05:43:42,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-19 05:43:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 05:43:42,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-19 05:43:42,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 05:44:57,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 537 proven. 117 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2023-12-19 05:44:57,233 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-19 05:54:33,451 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 05:54:33,459 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 05:54:33,474 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 [2023-12-19 05:54:33,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-19 05:54:33,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-19 05:54:33,678 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 164 with TraceHistMax 26,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-32-6-4-4-3-3-2-2-1 context. [2023-12-19 05:54:33,682 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 05:54:33,684 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 05:54:33,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:54:33 BoogieIcfgContainer [2023-12-19 05:54:33,686 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 05:54:33,686 INFO L158 Benchmark]: Toolchain (without parser) took 869813.01ms. Allocated memory was 158.3MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 111.1MB in the beginning and 646.2MB in the end (delta: -535.2MB). Peak memory consumption was 866.0MB. Max. memory is 8.0GB. [2023-12-19 05:54:33,689 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 158.3MB. Free memory is still 114.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 05:54:33,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.91ms. Allocated memory is still 158.3MB. Free memory was 110.9MB in the beginning and 96.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-19 05:54:33,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.67ms. Allocated memory is still 158.3MB. Free memory was 96.3MB in the beginning and 91.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 05:54:33,690 INFO L158 Benchmark]: Boogie Preprocessor took 125.64ms. Allocated memory was 158.3MB in the beginning and 215.0MB in the end (delta: 56.6MB). Free memory was 91.8MB in the beginning and 185.6MB in the end (delta: -93.7MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. [2023-12-19 05:54:33,690 INFO L158 Benchmark]: RCFGBuilder took 564.20ms. Allocated memory is still 215.0MB. Free memory was 185.6MB in the beginning and 158.8MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-19 05:54:33,690 INFO L158 Benchmark]: TraceAbstraction took 868767.88ms. Allocated memory was 215.0MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 158.3MB in the beginning and 646.2MB in the end (delta: -488.0MB). Peak memory consumption was 856.1MB. Max. memory is 8.0GB. [2023-12-19 05:54:33,692 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 158.3MB. Free memory is still 114.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 289.91ms. Allocated memory is still 158.3MB. Free memory was 110.9MB in the beginning and 96.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.67ms. Allocated memory is still 158.3MB. Free memory was 96.3MB in the beginning and 91.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 125.64ms. Allocated memory was 158.3MB in the beginning and 215.0MB in the end (delta: 56.6MB). Free memory was 91.8MB in the beginning and 185.6MB in the end (delta: -93.7MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. * RCFGBuilder took 564.20ms. Allocated memory is still 215.0MB. Free memory was 185.6MB in the beginning and 158.8MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * TraceAbstraction took 868767.88ms. Allocated memory was 215.0MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 158.3MB in the beginning and 646.2MB in the end (delta: -488.0MB). Peak memory consumption was 856.1MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 164 with TraceHistMax 26,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-32-6-4-4-3-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 868.7s, OverallIterations: 17, TraceHistogramMax: 26, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2976 SdHoareTripleChecker+Valid, 7.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2937 mSDsluCounter, 5892 SdHoareTripleChecker+Invalid, 7.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4381 mSDsCounter, 1112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4722 IncrementalHoareTripleChecker+Invalid, 5834 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1112 mSolverCounterUnsat, 1511 mSDtfsCounter, 4722 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4773 GetRequests, 4368 SyntacticMatches, 1 SemanticMatches, 404 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3263 ImplicationChecksByTransitivity, 33.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred in iteration=11, InterpolantAutomatonStates: 222, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 16 MinimizatonAttempts, 864 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 192.6s InterpolantComputationTime, 2720 NumberOfCodeBlocks, 2720 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 4615 ConstructedInterpolants, 4 QuantifiedInterpolants, 55251 SizeOfPredicates, 359 NumberOfNonLiveVariables, 6029 ConjunctsInSsa, 354 ConjunctsInUnsatCore, 29 InterpolantComputations, 11 PerfectInterpolantSequences, 35468/37700 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