/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-29.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 03:37:47,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 03:37:47,291 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 03:37:47,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 03:37:47,296 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 03:37:47,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 03:37:47,318 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 03:37:47,318 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 03:37:47,318 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 03:37:47,321 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 03:37:47,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 03:37:47,322 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 03:37:47,322 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 03:37:47,323 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 03:37:47,323 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 03:37:47,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 03:37:47,324 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 03:37:47,324 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 03:37:47,324 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 03:37:47,324 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 03:37:47,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 03:37:47,325 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 03:37:47,325 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 03:37:47,325 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 03:37:47,325 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 03:37:47,325 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 03:37:47,325 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 03:37:47,326 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 03:37:47,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 03:37:47,326 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 03:37:47,327 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 03:37:47,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 03:37:47,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:37:47,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 03:37:47,327 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 03:37:47,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 03:37:47,328 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 03:37:47,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 03:37:47,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 03:37:47,328 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 03:37:47,328 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 03:37:47,329 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 03:37:47,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 03:37:47,329 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 03:37:47,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 03:37:47,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 03:37:47,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 03:37:47,531 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 03:37:47,532 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 03:37:47,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-29.i [2023-12-16 03:37:48,655 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 03:37:48,811 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 03:37:48,811 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-29.i [2023-12-16 03:37:48,822 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c43e934/2e7a3201c5e242e1b4f209257666b30d/FLAG746202972 [2023-12-16 03:37:48,835 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c43e934/2e7a3201c5e242e1b4f209257666b30d [2023-12-16 03:37:48,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 03:37:48,838 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 03:37:48,839 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 03:37:48,843 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 03:37:48,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 03:37:48,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:37:48" (1/1) ... [2023-12-16 03:37:48,848 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22bd3b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:48, skipping insertion in model container [2023-12-16 03:37:48,848 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:37:48" (1/1) ... [2023-12-16 03:37:48,884 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 03:37:48,996 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_loopvsstraightlinecode_100-1loop_file-29.i[916,929] [2023-12-16 03:37:49,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:37:49,065 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 03:37:49,081 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_loopvsstraightlinecode_100-1loop_file-29.i[916,929] [2023-12-16 03:37:49,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:37:49,155 INFO L206 MainTranslator]: Completed translation [2023-12-16 03:37:49,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:49 WrapperNode [2023-12-16 03:37:49,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 03:37:49,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 03:37:49,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 03:37:49,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 03:37:49,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:49" (1/1) ... [2023-12-16 03:37:49,172 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:49" (1/1) ... [2023-12-16 03:37:49,217 INFO L138 Inliner]: procedures = 26, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 271 [2023-12-16 03:37:49,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 03:37:49,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 03:37:49,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 03:37:49,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 03:37:49,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:49" (1/1) ... [2023-12-16 03:37:49,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:49" (1/1) ... [2023-12-16 03:37:49,229 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:49" (1/1) ... [2023-12-16 03:37:49,258 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 03:37:49,258 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:49" (1/1) ... [2023-12-16 03:37:49,259 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:49" (1/1) ... [2023-12-16 03:37:49,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:49" (1/1) ... [2023-12-16 03:37:49,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:49" (1/1) ... [2023-12-16 03:37:49,284 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:49" (1/1) ... [2023-12-16 03:37:49,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:49" (1/1) ... [2023-12-16 03:37:49,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 03:37:49,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 03:37:49,293 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 03:37:49,293 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 03:37:49,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:49" (1/1) ... [2023-12-16 03:37:49,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:37:49,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:37:49,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 03:37:49,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 03:37:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 03:37:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 03:37:49,379 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 03:37:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 03:37:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 03:37:49,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 03:37:49,442 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 03:37:49,443 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 03:37:49,852 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 03:37:49,884 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 03:37:49,884 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 03:37:49,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:37:49 BoogieIcfgContainer [2023-12-16 03:37:49,884 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 03:37:49,887 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 03:37:49,888 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 03:37:49,890 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 03:37:49,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:37:48" (1/3) ... [2023-12-16 03:37:49,890 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b767d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:37:49, skipping insertion in model container [2023-12-16 03:37:49,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:49" (2/3) ... [2023-12-16 03:37:49,890 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b767d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:37:49, skipping insertion in model container [2023-12-16 03:37:49,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:37:49" (3/3) ... [2023-12-16 03:37:49,891 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-29.i [2023-12-16 03:37:49,905 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 03:37:49,906 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 03:37:49,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 03:37:49,948 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;@4f46e1ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 03:37:49,949 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 03:37:49,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 66 states have internal predecessors, (93), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-16 03:37:49,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-16 03:37:49,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:37:49,967 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:37:49,968 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:37:49,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:37:49,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2053226126, now seen corresponding path program 1 times [2023-12-16 03:37:49,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:37:49,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872577253] [2023-12-16 03:37:49,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:49,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:37:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:50,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:37:50,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872577253] [2023-12-16 03:37:50,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 03:37:50,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845145175] [2023-12-16 03:37:50,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:50,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:37:50,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:37:50,266 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:37:50,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 03:37:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:50,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 03:37:50,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:37:50,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2023-12-16 03:37:50,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:37:50,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845145175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:37:50,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:37:50,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 03:37:50,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622307560] [2023-12-16 03:37:50,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:37:50,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 03:37:50,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:37:50,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 03:37:50,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:37:50,593 INFO L87 Difference]: Start difference. First operand has 106 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 66 states have internal predecessors, (93), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-16 03:37:50,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:37:50,629 INFO L93 Difference]: Finished difference Result 211 states and 375 transitions. [2023-12-16 03:37:50,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 03:37:50,631 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) Word has length 238 [2023-12-16 03:37:50,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:37:50,636 INFO L225 Difference]: With dead ends: 211 [2023-12-16 03:37:50,637 INFO L226 Difference]: Without dead ends: 104 [2023-12-16 03:37:50,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:37:50,643 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:37:50,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:37:50,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-16 03:37:50,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2023-12-16 03:37:50,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 64 states have (on average 1.375) internal successors, (88), 64 states have internal predecessors, (88), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-16 03:37:50,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 164 transitions. [2023-12-16 03:37:50,699 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 164 transitions. Word has length 238 [2023-12-16 03:37:50,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:37:50,699 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 164 transitions. [2023-12-16 03:37:50,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-16 03:37:50,700 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 164 transitions. [2023-12-16 03:37:50,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-16 03:37:50,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:37:50,703 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:37:50,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 03:37:50,910 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 [2023-12-16 03:37:50,910 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:37:50,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:37:50,911 INFO L85 PathProgramCache]: Analyzing trace with hash -573015978, now seen corresponding path program 1 times [2023-12-16 03:37:50,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:37:50,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617083114] [2023-12-16 03:37:50,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:50,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:37:50,975 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:37:50,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1220736373] [2023-12-16 03:37:50,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:50,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:37:50,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:37:50,989 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:37:50,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 03:37:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:51,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 03:37:51,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:37:51,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-16 03:37:51,230 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:37:51,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:37:51,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617083114] [2023-12-16 03:37:51,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:37:51,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220736373] [2023-12-16 03:37:51,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220736373] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:37:51,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:37:51,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 03:37:51,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020657247] [2023-12-16 03:37:51,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:37:51,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 03:37:51,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:37:51,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 03:37:51,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:37:51,235 INFO L87 Difference]: Start difference. First operand 104 states and 164 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-16 03:37:51,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:37:51,329 INFO L93 Difference]: Finished difference Result 307 states and 484 transitions. [2023-12-16 03:37:51,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 03:37:51,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 238 [2023-12-16 03:37:51,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:37:51,332 INFO L225 Difference]: With dead ends: 307 [2023-12-16 03:37:51,332 INFO L226 Difference]: Without dead ends: 204 [2023-12-16 03:37:51,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:37:51,334 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 148 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:37:51,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 412 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:37:51,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-12-16 03:37:51,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2023-12-16 03:37:51,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 123 states have (on average 1.3252032520325203) internal successors, (163), 123 states have internal predecessors, (163), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-16 03:37:51,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 315 transitions. [2023-12-16 03:37:51,355 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 315 transitions. Word has length 238 [2023-12-16 03:37:51,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:37:51,355 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 315 transitions. [2023-12-16 03:37:51,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-16 03:37:51,356 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 315 transitions. [2023-12-16 03:37:51,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 03:37:51,358 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:37:51,358 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:37:51,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 03:37:51,568 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 [2023-12-16 03:37:51,569 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:37:51,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:37:51,569 INFO L85 PathProgramCache]: Analyzing trace with hash -330119871, now seen corresponding path program 1 times [2023-12-16 03:37:51,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:37:51,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123002778] [2023-12-16 03:37:51,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:51,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:37:51,624 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:37:51,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033768003] [2023-12-16 03:37:51,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:51,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:37:51,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:37:51,625 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:37:51,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 03:37:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:51,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 03:37:51,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:37:51,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-16 03:37:51,832 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:37:51,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:37:51,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123002778] [2023-12-16 03:37:51,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:37:51,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033768003] [2023-12-16 03:37:51,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033768003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:37:51,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:37:51,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 03:37:51,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230446353] [2023-12-16 03:37:51,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:37:51,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 03:37:51,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:37:51,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 03:37:51,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:37:51,837 INFO L87 Difference]: Start difference. First operand 202 states and 315 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-16 03:37:51,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:37:51,900 INFO L93 Difference]: Finished difference Result 409 states and 637 transitions. [2023-12-16 03:37:51,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 03:37:51,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 239 [2023-12-16 03:37:51,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:37:51,907 INFO L225 Difference]: With dead ends: 409 [2023-12-16 03:37:51,907 INFO L226 Difference]: Without dead ends: 208 [2023-12-16 03:37:51,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:37:51,913 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 146 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:37:51,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 312 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:37:51,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-12-16 03:37:51,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 206. [2023-12-16 03:37:51,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 127 states have (on average 1.2992125984251968) internal successors, (165), 127 states have internal predecessors, (165), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-16 03:37:51,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 317 transitions. [2023-12-16 03:37:51,960 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 317 transitions. Word has length 239 [2023-12-16 03:37:51,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:37:51,960 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 317 transitions. [2023-12-16 03:37:51,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-16 03:37:51,961 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 317 transitions. [2023-12-16 03:37:51,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 03:37:51,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:37:51,963 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:37:51,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 03:37:52,175 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 [2023-12-16 03:37:52,178 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:37:52,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:37:52,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1977012095, now seen corresponding path program 1 times [2023-12-16 03:37:52,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:37:52,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684881526] [2023-12-16 03:37:52,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:52,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:37:52,218 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:37:52,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2088934344] [2023-12-16 03:37:52,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:52,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:37:52,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:37:52,227 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:37:52,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 03:37:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:52,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 03:37:52,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:37:52,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 687 proven. 96 refuted. 0 times theorem prover too weak. 2029 trivial. 0 not checked. [2023-12-16 03:37:52,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:37:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 15 proven. 96 refuted. 0 times theorem prover too weak. 2701 trivial. 0 not checked. [2023-12-16 03:37:52,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:37:52,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684881526] [2023-12-16 03:37:52,860 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:37:52,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088934344] [2023-12-16 03:37:52,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088934344] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:37:52,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:37:52,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-16 03:37:52,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931806738] [2023-12-16 03:37:52,861 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:37:52,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 03:37:52,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:37:52,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 03:37:52,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 03:37:52,862 INFO L87 Difference]: Start difference. First operand 206 states and 317 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (70), 2 states have call predecessors, (70), 4 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2023-12-16 03:37:53,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:37:53,309 INFO L93 Difference]: Finished difference Result 433 states and 655 transitions. [2023-12-16 03:37:53,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 03:37:53,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (70), 2 states have call predecessors, (70), 4 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 239 [2023-12-16 03:37:53,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:37:53,311 INFO L225 Difference]: With dead ends: 433 [2023-12-16 03:37:53,311 INFO L226 Difference]: Without dead ends: 228 [2023-12-16 03:37:53,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 469 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-16 03:37:53,312 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 242 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 03:37:53,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 559 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 03:37:53,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-12-16 03:37:53,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 214. [2023-12-16 03:37:53,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 133 states have (on average 1.2857142857142858) internal successors, (171), 133 states have internal predecessors, (171), 76 states have call successors, (76), 4 states have call predecessors, (76), 4 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-16 03:37:53,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 323 transitions. [2023-12-16 03:37:53,329 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 323 transitions. Word has length 239 [2023-12-16 03:37:53,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:37:53,329 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 323 transitions. [2023-12-16 03:37:53,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (70), 2 states have call predecessors, (70), 4 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2023-12-16 03:37:53,330 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 323 transitions. [2023-12-16 03:37:53,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-16 03:37:53,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:37:53,332 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:37:53,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-16 03:37:53,538 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 [2023-12-16 03:37:53,538 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:37:53,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:37:53,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1601181249, now seen corresponding path program 1 times [2023-12-16 03:37:53,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:37:53,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084638947] [2023-12-16 03:37:53,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:53,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:37:53,565 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:37:53,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1558032871] [2023-12-16 03:37:53,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:53,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:37:53,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:37:53,567 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:37:53,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 03:37:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:53,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-16 03:37:53,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:37:55,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1220 proven. 426 refuted. 0 times theorem prover too weak. 1166 trivial. 0 not checked. [2023-12-16 03:37:55,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:38:00,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 69 proven. 456 refuted. 0 times theorem prover too weak. 2287 trivial. 0 not checked. [2023-12-16 03:38:00,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:38:00,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084638947] [2023-12-16 03:38:00,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:38:00,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558032871] [2023-12-16 03:38:00,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558032871] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:38:00,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:38:00,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25] total 47 [2023-12-16 03:38:00,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112821491] [2023-12-16 03:38:00,925 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:38:00,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-12-16 03:38:00,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:38:00,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-12-16 03:38:00,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=618, Invalid=1544, Unknown=0, NotChecked=0, Total=2162 [2023-12-16 03:38:00,928 INFO L87 Difference]: Start difference. First operand 214 states and 323 transitions. Second operand has 47 states, 45 states have (on average 3.088888888888889) internal successors, (139), 43 states have internal predecessors, (139), 12 states have call successors, (76), 7 states have call predecessors, (76), 14 states have return successors, (76), 12 states have call predecessors, (76), 12 states have call successors, (76) [2023-12-16 03:38:09,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:38:09,278 INFO L93 Difference]: Finished difference Result 1275 states and 1788 transitions. [2023-12-16 03:38:09,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2023-12-16 03:38:09,279 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 45 states have (on average 3.088888888888889) internal successors, (139), 43 states have internal predecessors, (139), 12 states have call successors, (76), 7 states have call predecessors, (76), 14 states have return successors, (76), 12 states have call predecessors, (76), 12 states have call successors, (76) Word has length 240 [2023-12-16 03:38:09,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:38:09,282 INFO L225 Difference]: With dead ends: 1275 [2023-12-16 03:38:09,282 INFO L226 Difference]: Without dead ends: 1059 [2023-12-16 03:38:09,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7985 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=5294, Invalid=14166, Unknown=0, NotChecked=0, Total=19460 [2023-12-16 03:38:09,287 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 2195 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 3362 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 3809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 3362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:38:09,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 2539 Invalid, 3809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 3362 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-16 03:38:09,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2023-12-16 03:38:09,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 538. [2023-12-16 03:38:09,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 359 states have (on average 1.2618384401114207) internal successors, (453), 359 states have internal predecessors, (453), 152 states have call successors, (152), 26 states have call predecessors, (152), 26 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-12-16 03:38:09,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 757 transitions. [2023-12-16 03:38:09,336 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 757 transitions. Word has length 240 [2023-12-16 03:38:09,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:38:09,338 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 757 transitions. [2023-12-16 03:38:09,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 45 states have (on average 3.088888888888889) internal successors, (139), 43 states have internal predecessors, (139), 12 states have call successors, (76), 7 states have call predecessors, (76), 14 states have return successors, (76), 12 states have call predecessors, (76), 12 states have call successors, (76) [2023-12-16 03:38:09,338 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 757 transitions. [2023-12-16 03:38:09,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-16 03:38:09,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:38:09,341 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:38:09,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 03:38:09,547 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 [2023-12-16 03:38:09,547 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:38:09,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:38:09,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1014252454, now seen corresponding path program 1 times [2023-12-16 03:38:09,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:38:09,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625576893] [2023-12-16 03:38:09,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:09,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:38:09,578 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:38:09,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [572929868] [2023-12-16 03:38:09,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:09,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:38:09,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:38:09,599 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) [2023-12-16 03:38:09,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 03:38:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:38:09,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 03:38:09,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:38:10,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-16 03:38:10,736 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:38:10,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:38:10,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625576893] [2023-12-16 03:38:10,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:38:10,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572929868] [2023-12-16 03:38:10,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572929868] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:38:10,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:38:10,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 03:38:10,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600946671] [2023-12-16 03:38:10,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:38:10,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 03:38:10,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:38:10,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 03:38:10,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-16 03:38:10,739 INFO L87 Difference]: Start difference. First operand 538 states and 757 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-16 03:38:11,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:38:11,087 INFO L93 Difference]: Finished difference Result 1290 states and 1821 transitions. [2023-12-16 03:38:11,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 03:38:11,100 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 240 [2023-12-16 03:38:11,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:38:11,104 INFO L225 Difference]: With dead ends: 1290 [2023-12-16 03:38:11,104 INFO L226 Difference]: Without dead ends: 753 [2023-12-16 03:38:11,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2023-12-16 03:38:11,106 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 377 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 03:38:11,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 794 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 03:38:11,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-12-16 03:38:11,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 584. [2023-12-16 03:38:11,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 405 states have (on average 1.2864197530864196) internal successors, (521), 405 states have internal predecessors, (521), 152 states have call successors, (152), 26 states have call predecessors, (152), 26 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-12-16 03:38:11,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 825 transitions. [2023-12-16 03:38:11,141 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 825 transitions. Word has length 240 [2023-12-16 03:38:11,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:38:11,141 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 825 transitions. [2023-12-16 03:38:11,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-16 03:38:11,142 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 825 transitions. [2023-12-16 03:38:11,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-16 03:38:11,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:38:11,143 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:38:11,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 03:38:11,350 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 [2023-12-16 03:38:11,350 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:38:11,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:38:11,351 INFO L85 PathProgramCache]: Analyzing trace with hash -756087016, now seen corresponding path program 1 times [2023-12-16 03:38:11,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:38:11,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171784371] [2023-12-16 03:38:11,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:11,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:38:11,372 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:38:11,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1472888758] [2023-12-16 03:38:11,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:11,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:38:11,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:38:11,398 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) [2023-12-16 03:38:11,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 03:38:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:38:11,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-16 03:38:11,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:38:12,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-16 03:38:12,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:38:12,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:38:12,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171784371] [2023-12-16 03:38:12,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:38:12,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472888758] [2023-12-16 03:38:12,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472888758] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:38:12,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:38:12,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 03:38:12,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418791526] [2023-12-16 03:38:12,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:38:12,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 03:38:12,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:38:12,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 03:38:12,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-16 03:38:12,593 INFO L87 Difference]: Start difference. First operand 584 states and 825 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-16 03:38:13,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:38:13,872 INFO L93 Difference]: Finished difference Result 1336 states and 1887 transitions. [2023-12-16 03:38:13,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 03:38:13,882 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 240 [2023-12-16 03:38:13,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:38:13,889 INFO L225 Difference]: With dead ends: 1336 [2023-12-16 03:38:13,890 INFO L226 Difference]: Without dead ends: 753 [2023-12-16 03:38:13,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2023-12-16 03:38:13,891 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 366 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 03:38:13,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 708 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 03:38:13,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-12-16 03:38:13,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 584. [2023-12-16 03:38:13,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 405 states have (on average 1.2864197530864196) internal successors, (521), 405 states have internal predecessors, (521), 152 states have call successors, (152), 26 states have call predecessors, (152), 26 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-12-16 03:38:13,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 825 transitions. [2023-12-16 03:38:13,926 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 825 transitions. Word has length 240 [2023-12-16 03:38:13,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:38:13,926 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 825 transitions. [2023-12-16 03:38:13,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-16 03:38:13,926 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 825 transitions. [2023-12-16 03:38:13,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-16 03:38:13,929 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:38:13,929 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:38:13,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 03:38:14,138 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 [2023-12-16 03:38:14,139 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:38:14,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:38:14,140 INFO L85 PathProgramCache]: Analyzing trace with hash 6815900, now seen corresponding path program 1 times [2023-12-16 03:38:14,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:38:14,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246475555] [2023-12-16 03:38:14,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:14,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:38:14,166 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:38:14,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1196970475] [2023-12-16 03:38:14,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:14,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:38:14,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:38:14,167 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) [2023-12-16 03:38:14,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-16 03:38:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:38:14,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 03:38:14,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:38:14,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 37 proven. 111 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2023-12-16 03:38:14,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:38:14,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 2701 trivial. 0 not checked. [2023-12-16 03:38:14,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:38:14,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246475555] [2023-12-16 03:38:14,766 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:38:14,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196970475] [2023-12-16 03:38:14,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196970475] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:38:14,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:38:14,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 03:38:14,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284297155] [2023-12-16 03:38:14,767 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:38:14,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 03:38:14,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:38:14,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 03:38:14,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 03:38:14,768 INFO L87 Difference]: Start difference. First operand 584 states and 825 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) [2023-12-16 03:38:14,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:38:14,994 INFO L93 Difference]: Finished difference Result 1179 states and 1643 transitions. [2023-12-16 03:38:14,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 03:38:14,995 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) Word has length 240 [2023-12-16 03:38:14,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:38:14,997 INFO L225 Difference]: With dead ends: 1179 [2023-12-16 03:38:14,997 INFO L226 Difference]: Without dead ends: 591 [2023-12-16 03:38:14,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 472 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 03:38:14,999 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 101 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 03:38:14,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 259 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 03:38:14,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2023-12-16 03:38:15,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 367. [2023-12-16 03:38:15,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 275 states have (on average 1.3127272727272727) internal successors, (361), 275 states have internal predecessors, (361), 76 states have call successors, (76), 15 states have call predecessors, (76), 15 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-16 03:38:15,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 513 transitions. [2023-12-16 03:38:15,030 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 513 transitions. Word has length 240 [2023-12-16 03:38:15,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:38:15,031 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 513 transitions. [2023-12-16 03:38:15,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) [2023-12-16 03:38:15,031 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 513 transitions. [2023-12-16 03:38:15,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-16 03:38:15,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:38:15,033 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:38:15,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-16 03:38:15,239 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 [2023-12-16 03:38:15,239 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:38:15,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:38:15,240 INFO L85 PathProgramCache]: Analyzing trace with hash -235131656, now seen corresponding path program 1 times [2023-12-16 03:38:15,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:38:15,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453863160] [2023-12-16 03:38:15,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:15,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:38:15,261 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:38:15,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [996641452] [2023-12-16 03:38:15,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:15,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:38:15,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:38:15,278 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) [2023-12-16 03:38:15,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-16 03:38:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:38:15,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 03:38:15,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:38:15,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-16 03:38:15,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:38:15,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:38:15,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453863160] [2023-12-16 03:38:15,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:38:15,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996641452] [2023-12-16 03:38:15,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996641452] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:38:15,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:38:15,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 03:38:15,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514683639] [2023-12-16 03:38:15,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:38:15,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 03:38:15,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:38:15,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 03:38:15,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 03:38:15,727 INFO L87 Difference]: Start difference. First operand 367 states and 513 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-16 03:38:15,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:38:15,922 INFO L93 Difference]: Finished difference Result 764 states and 1065 transitions. [2023-12-16 03:38:15,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 03:38:15,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 241 [2023-12-16 03:38:15,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:38:15,925 INFO L225 Difference]: With dead ends: 764 [2023-12-16 03:38:15,925 INFO L226 Difference]: Without dead ends: 572 [2023-12-16 03:38:15,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 03:38:15,926 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 139 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 03:38:15,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 563 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 03:38:15,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-12-16 03:38:15,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 471. [2023-12-16 03:38:15,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 333 states have (on average 1.2642642642642643) internal successors, (421), 333 states have internal predecessors, (421), 114 states have call successors, (114), 23 states have call predecessors, (114), 23 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-16 03:38:15,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 649 transitions. [2023-12-16 03:38:15,955 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 649 transitions. Word has length 241 [2023-12-16 03:38:15,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:38:15,955 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 649 transitions. [2023-12-16 03:38:15,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-16 03:38:15,956 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 649 transitions. [2023-12-16 03:38:15,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-16 03:38:15,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:38:15,957 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:38:15,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-16 03:38:16,163 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 [2023-12-16 03:38:16,163 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:38:16,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:38:16,163 INFO L85 PathProgramCache]: Analyzing trace with hash 79421712, now seen corresponding path program 1 times [2023-12-16 03:38:16,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:38:16,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460605537] [2023-12-16 03:38:16,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:16,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:38:16,183 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:38:16,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1805442034] [2023-12-16 03:38:16,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:16,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:38:16,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:38:16,185 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) [2023-12-16 03:38:16,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-16 03:38:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:38:16,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-16 03:38:16,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:38:17,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1337 proven. 138 refuted. 0 times theorem prover too weak. 1337 trivial. 0 not checked. [2023-12-16 03:38:17,428 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:38:17,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 42 proven. 69 refuted. 0 times theorem prover too weak. 2701 trivial. 0 not checked. [2023-12-16 03:38:17,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:38:17,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460605537] [2023-12-16 03:38:17,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:38:17,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805442034] [2023-12-16 03:38:17,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805442034] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:38:17,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:38:17,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2023-12-16 03:38:17,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561943003] [2023-12-16 03:38:17,942 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:38:17,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-16 03:38:17,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:38:17,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-16 03:38:17,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2023-12-16 03:38:17,944 INFO L87 Difference]: Start difference. First operand 471 states and 649 transitions. Second operand has 24 states, 23 states have (on average 4.913043478260869) internal successors, (113), 22 states have internal predecessors, (113), 6 states have call successors, (76), 4 states have call predecessors, (76), 6 states have return successors, (76), 6 states have call predecessors, (76), 6 states have call successors, (76) [2023-12-16 03:38:20,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:38:20,057 INFO L93 Difference]: Finished difference Result 1471 states and 2062 transitions. [2023-12-16 03:38:20,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-16 03:38:20,058 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.913043478260869) internal successors, (113), 22 states have internal predecessors, (113), 6 states have call successors, (76), 4 states have call predecessors, (76), 6 states have return successors, (76), 6 states have call predecessors, (76), 6 states have call successors, (76) Word has length 241 [2023-12-16 03:38:20,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:38:20,061 INFO L225 Difference]: With dead ends: 1471 [2023-12-16 03:38:20,062 INFO L226 Difference]: Without dead ends: 1105 [2023-12-16 03:38:20,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=633, Invalid=1917, Unknown=0, NotChecked=0, Total=2550 [2023-12-16 03:38:20,063 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 609 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 03:38:20,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1175 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 03:38:20,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2023-12-16 03:38:20,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 653. [2023-12-16 03:38:20,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 467 states have (on average 1.2612419700214133) internal successors, (589), 467 states have internal predecessors, (589), 152 states have call successors, (152), 33 states have call predecessors, (152), 33 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-12-16 03:38:20,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 893 transitions. [2023-12-16 03:38:20,112 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 893 transitions. Word has length 241 [2023-12-16 03:38:20,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:38:20,113 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 893 transitions. [2023-12-16 03:38:20,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.913043478260869) internal successors, (113), 22 states have internal predecessors, (113), 6 states have call successors, (76), 4 states have call predecessors, (76), 6 states have return successors, (76), 6 states have call predecessors, (76), 6 states have call successors, (76) [2023-12-16 03:38:20,113 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 893 transitions. [2023-12-16 03:38:20,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-16 03:38:20,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:38:20,114 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:38:20,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-16 03:38:20,320 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 [2023-12-16 03:38:20,320 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:38:20,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:38:20,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1966302817, now seen corresponding path program 1 times [2023-12-16 03:38:20,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:38:20,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481471040] [2023-12-16 03:38:20,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:20,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:38:20,339 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:38:20,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773097166] [2023-12-16 03:38:20,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:20,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:38:20,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:38:20,340 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) [2023-12-16 03:38:20,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-16 03:38:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:38:20,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 03:38:20,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:38:20,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1203 proven. 78 refuted. 0 times theorem prover too weak. 1531 trivial. 0 not checked. [2023-12-16 03:38:20,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:38:20,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 33 proven. 78 refuted. 0 times theorem prover too weak. 2701 trivial. 0 not checked. [2023-12-16 03:38:20,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:38:20,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481471040] [2023-12-16 03:38:20,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:38:20,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773097166] [2023-12-16 03:38:20,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773097166] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:38:20,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:38:20,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-16 03:38:20,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616663241] [2023-12-16 03:38:20,863 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:38:20,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 03:38:20,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:38:20,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 03:38:20,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-16 03:38:20,864 INFO L87 Difference]: Start difference. First operand 653 states and 893 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 3 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2023-12-16 03:38:21,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:38:21,402 INFO L93 Difference]: Finished difference Result 1610 states and 2154 transitions. [2023-12-16 03:38:21,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 03:38:21,403 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 3 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 241 [2023-12-16 03:38:21,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:38:21,406 INFO L225 Difference]: With dead ends: 1610 [2023-12-16 03:38:21,406 INFO L226 Difference]: Without dead ends: 1066 [2023-12-16 03:38:21,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2023-12-16 03:38:21,408 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 240 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 03:38:21,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 611 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 03:38:21,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2023-12-16 03:38:21,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 608. [2023-12-16 03:38:21,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 418 states have (on average 1.215311004784689) internal successors, (508), 418 states have internal predecessors, (508), 152 states have call successors, (152), 37 states have call predecessors, (152), 37 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-12-16 03:38:21,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 812 transitions. [2023-12-16 03:38:21,462 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 812 transitions. Word has length 241 [2023-12-16 03:38:21,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:38:21,462 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 812 transitions. [2023-12-16 03:38:21,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 3 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2023-12-16 03:38:21,463 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 812 transitions. [2023-12-16 03:38:21,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-16 03:38:21,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:38:21,464 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:38:21,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-16 03:38:21,670 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 [2023-12-16 03:38:21,670 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:38:21,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:38:21,670 INFO L85 PathProgramCache]: Analyzing trace with hash 955185567, now seen corresponding path program 1 times [2023-12-16 03:38:21,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:38:21,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974101312] [2023-12-16 03:38:21,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:21,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:38:21,687 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:38:21,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [218032672] [2023-12-16 03:38:21,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:21,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:38:21,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:38:21,690 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) [2023-12-16 03:38:21,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-16 03:38:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:38:21,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 03:38:21,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:38:22,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-16 03:38:22,736 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:38:22,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:38:22,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974101312] [2023-12-16 03:38:22,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:38:22,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218032672] [2023-12-16 03:38:22,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218032672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:38:22,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:38:22,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 03:38:22,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328790217] [2023-12-16 03:38:22,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:38:22,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 03:38:22,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:38:22,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 03:38:22,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-16 03:38:22,738 INFO L87 Difference]: Start difference. First operand 608 states and 812 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-16 03:38:23,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:38:23,059 INFO L93 Difference]: Finished difference Result 1090 states and 1468 transitions. [2023-12-16 03:38:23,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 03:38:23,060 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 241 [2023-12-16 03:38:23,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:38:23,063 INFO L225 Difference]: With dead ends: 1090 [2023-12-16 03:38:23,063 INFO L226 Difference]: Without dead ends: 757 [2023-12-16 03:38:23,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2023-12-16 03:38:23,064 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 216 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:38:23,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 780 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:38:23,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-12-16 03:38:23,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 661. [2023-12-16 03:38:23,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 471 states have (on average 1.2292993630573248) internal successors, (579), 471 states have internal predecessors, (579), 152 states have call successors, (152), 37 states have call predecessors, (152), 37 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-12-16 03:38:23,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 883 transitions. [2023-12-16 03:38:23,127 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 883 transitions. Word has length 241 [2023-12-16 03:38:23,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:38:23,127 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 883 transitions. [2023-12-16 03:38:23,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-16 03:38:23,128 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 883 transitions. [2023-12-16 03:38:23,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-12-16 03:38:23,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:38:23,129 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:38:23,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-16 03:38:23,334 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 [2023-12-16 03:38:23,334 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:38:23,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:38:23,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1615799181, now seen corresponding path program 1 times [2023-12-16 03:38:23,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:38:23,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473104511] [2023-12-16 03:38:23,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:23,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:38:23,359 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:38:23,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [201550983] [2023-12-16 03:38:23,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:38:23,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:38:23,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:38:23,360 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) [2023-12-16 03:38:23,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-16 03:38:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:38:23,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-16 03:38:23,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:38:25,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1265 proven. 345 refuted. 0 times theorem prover too weak. 1202 trivial. 0 not checked. [2023-12-16 03:38:25,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 03:38:54,673 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 03:38:54,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-16 03:38:54,686 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 03:38:54,688 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 03:38:54,874 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 [2023-12-16 03:38:54,874 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 243 with TraceHistMax 38,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∨-2-7-3-24-2-21-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ATOM-1 context. [2023-12-16 03:38:54,878 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:38:54,880 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 03:38:54,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:38:54 BoogieIcfgContainer [2023-12-16 03:38:54,881 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 03:38:54,881 INFO L158 Benchmark]: Toolchain (without parser) took 66043.54ms. Allocated memory was 190.8MB in the beginning and 1.0GB in the end (delta: 825.2MB). Free memory was 147.2MB in the beginning and 892.2MB in the end (delta: -745.1MB). Peak memory consumption was 611.3MB. Max. memory is 8.0GB. [2023-12-16 03:38:54,882 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 03:38:54,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.76ms. Allocated memory is still 190.8MB. Free memory was 147.2MB in the beginning and 129.6MB in the end (delta: 17.6MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 03:38:54,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.01ms. Allocated memory is still 190.8MB. Free memory was 129.3MB in the beginning and 123.7MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 03:38:54,882 INFO L158 Benchmark]: Boogie Preprocessor took 74.26ms. Allocated memory is still 190.8MB. Free memory was 123.7MB in the beginning and 115.7MB in the end (delta: 8.1MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 03:38:54,882 INFO L158 Benchmark]: RCFGBuilder took 591.92ms. Allocated memory is still 190.8MB. Free memory was 115.3MB in the beginning and 134.2MB in the end (delta: -18.9MB). Peak memory consumption was 12.9MB. Max. memory is 8.0GB. [2023-12-16 03:38:54,883 INFO L158 Benchmark]: TraceAbstraction took 64993.71ms. Allocated memory was 190.8MB in the beginning and 1.0GB in the end (delta: 825.2MB). Free memory was 133.7MB in the beginning and 892.2MB in the end (delta: -758.6MB). Peak memory consumption was 596.2MB. Max. memory is 8.0GB. [2023-12-16 03:38:54,883 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 316.76ms. Allocated memory is still 190.8MB. Free memory was 147.2MB in the beginning and 129.6MB in the end (delta: 17.6MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.01ms. Allocated memory is still 190.8MB. Free memory was 129.3MB in the beginning and 123.7MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 74.26ms. Allocated memory is still 190.8MB. Free memory was 123.7MB in the beginning and 115.7MB in the end (delta: 8.1MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 591.92ms. Allocated memory is still 190.8MB. Free memory was 115.3MB in the beginning and 134.2MB in the end (delta: -18.9MB). Peak memory consumption was 12.9MB. Max. memory is 8.0GB. * TraceAbstraction took 64993.71ms. Allocated memory was 190.8MB in the beginning and 1.0GB in the end (delta: 825.2MB). Free memory was 133.7MB in the beginning and 892.2MB in the end (delta: -758.6MB). Peak memory consumption was 596.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 243 with TraceHistMax 38,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∨-2-7-3-24-2-21-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 106 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.9s, OverallIterations: 13, TraceHistogramMax: 38, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4870 SdHoareTripleChecker+Valid, 7.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4779 mSDsluCounter, 8873 SdHoareTripleChecker+Invalid, 6.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6839 mSDsCounter, 856 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7210 IncrementalHoareTripleChecker+Invalid, 8066 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 856 mSolverCounterUnsat, 2034 mSDtfsCounter, 7210 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4246 GetRequests, 3950 SyntacticMatches, 3 SemanticMatches, 293 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8976 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=661occurred in iteration=12, InterpolantAutomatonStates: 262, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 2208 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 13.4s InterpolantComputationTime, 3116 NumberOfCodeBlocks, 3116 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 4062 ConstructedInterpolants, 15 QuantifiedInterpolants, 21356 SizeOfPredicates, 98 NumberOfNonLiveVariables, 6715 ConjunctsInSsa, 147 ConjunctsInUnsatCore, 17 InterpolantComputations, 7 PerfectInterpolantSequences, 46145/47804 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