/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-47.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 20:18:32,525 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 20:18:32,603 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 20:18:32,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 20:18:32,609 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 20:18:32,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 20:18:32,631 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 20:18:32,631 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 20:18:32,631 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 20:18:32,634 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 20:18:32,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 20:18:32,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 20:18:32,635 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 20:18:32,636 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 20:18:32,636 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 20:18:32,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 20:18:32,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 20:18:32,637 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 20:18:32,638 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 20:18:32,638 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 20:18:32,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 20:18:32,639 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 20:18:32,639 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 20:18:32,639 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 20:18:32,639 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 20:18:32,639 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 20:18:32,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 20:18:32,640 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 20:18:32,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 20:18:32,641 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 20:18:32,641 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 20:18:32,642 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 20:18:32,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:18:32,642 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 20:18:32,642 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 20:18:32,642 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 20:18:32,642 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 20:18:32,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 20:18:32,643 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 20:18:32,643 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 20:18:32,643 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 20:18:32,643 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 20:18:32,643 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 20:18:32,644 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 20:18:32,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 20:18:32,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 20:18:32,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 20:18:32,856 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 20:18:32,856 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 20:18:32,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-47.i [2023-12-15 20:18:34,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 20:18:34,231 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 20:18:34,232 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-47.i [2023-12-15 20:18:34,241 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ae6795de/654c5197a5704c1bac8b7d0951f60e13/FLAGe54452744 [2023-12-15 20:18:34,258 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ae6795de/654c5197a5704c1bac8b7d0951f60e13 [2023-12-15 20:18:34,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 20:18:34,260 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 20:18:34,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 20:18:34,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 20:18:34,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 20:18:34,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:18:34" (1/1) ... [2023-12-15 20:18:34,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5035ccdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34, skipping insertion in model container [2023-12-15 20:18:34,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:18:34" (1/1) ... [2023-12-15 20:18:34,297 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 20:18:34,413 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_fillercode_fillercodestructure_filler-pr-ci_file-47.i[919,932] [2023-12-15 20:18:34,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:18:34,487 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 20:18:34,501 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_fillercode_fillercodestructure_filler-pr-ci_file-47.i[919,932] [2023-12-15 20:18:34,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:18:34,537 INFO L206 MainTranslator]: Completed translation [2023-12-15 20:18:34,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34 WrapperNode [2023-12-15 20:18:34,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 20:18:34,539 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 20:18:34,539 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 20:18:34,539 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 20:18:34,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34" (1/1) ... [2023-12-15 20:18:34,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34" (1/1) ... [2023-12-15 20:18:34,600 INFO L138 Inliner]: procedures = 26, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 312 [2023-12-15 20:18:34,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 20:18:34,601 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 20:18:34,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 20:18:34,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 20:18:34,609 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34" (1/1) ... [2023-12-15 20:18:34,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34" (1/1) ... [2023-12-15 20:18:34,613 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34" (1/1) ... [2023-12-15 20:18:34,629 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]. [2023-12-15 20:18:34,629 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34" (1/1) ... [2023-12-15 20:18:34,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34" (1/1) ... [2023-12-15 20:18:34,652 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34" (1/1) ... [2023-12-15 20:18:34,655 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34" (1/1) ... [2023-12-15 20:18:34,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34" (1/1) ... [2023-12-15 20:18:34,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34" (1/1) ... [2023-12-15 20:18:34,673 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 20:18:34,674 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 20:18:34,674 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 20:18:34,674 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 20:18:34,675 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34" (1/1) ... [2023-12-15 20:18:34,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:18:34,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:18:34,726 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) [2023-12-15 20:18:34,732 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 [2023-12-15 20:18:34,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 20:18:34,747 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 20:18:34,747 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 20:18:34,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 20:18:34,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 20:18:34,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 20:18:34,807 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 20:18:34,811 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 20:18:35,216 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 20:18:35,244 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 20:18:35,244 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 20:18:35,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:18:35 BoogieIcfgContainer [2023-12-15 20:18:35,245 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 20:18:35,246 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 20:18:35,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 20:18:35,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 20:18:35,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:18:34" (1/3) ... [2023-12-15 20:18:35,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f150b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:18:35, skipping insertion in model container [2023-12-15 20:18:35,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:18:34" (2/3) ... [2023-12-15 20:18:35,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f150b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:18:35, skipping insertion in model container [2023-12-15 20:18:35,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:18:35" (3/3) ... [2023-12-15 20:18:35,250 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-47.i [2023-12-15 20:18:35,261 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 20:18:35,262 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 20:18:35,312 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 20:18:35,317 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;@5c61ccbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 20:18:35,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 20:18:35,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 77 states have (on average 1.6233766233766234) internal successors, (125), 78 states have internal predecessors, (125), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-15 20:18:35,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-15 20:18:35,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:18:35,337 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:18:35,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:18:35,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:18:35,346 INFO L85 PathProgramCache]: Analyzing trace with hash 2059120273, now seen corresponding path program 1 times [2023-12-15 20:18:35,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:18:35,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712453402] [2023-12-15 20:18:35,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:18:35,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:18:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:18:35,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:18:35,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712453402] [2023-12-15 20:18:35,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 20:18:35,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384178279] [2023-12-15 20:18:35,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:18:35,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:18:35,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:18:35,582 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) [2023-12-15 20:18:35,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 20:18:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:18:35,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 20:18:35,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:18:35,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2023-12-15 20:18:35,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:18:35,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384178279] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:18:35,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:18:35,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 20:18:35,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221006711] [2023-12-15 20:18:35,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:18:35,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 20:18:35,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:18:35,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 20:18:35,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 20:18:35,798 INFO L87 Difference]: Start difference. First operand has 109 states, 77 states have (on average 1.6233766233766234) internal successors, (125), 78 states have internal predecessors, (125), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-15 20:18:35,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:18:35,826 INFO L93 Difference]: Finished difference Result 215 states and 393 transitions. [2023-12-15 20:18:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 20:18:35,828 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) Word has length 189 [2023-12-15 20:18:35,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:18:35,833 INFO L225 Difference]: With dead ends: 215 [2023-12-15 20:18:35,834 INFO L226 Difference]: Without dead ends: 107 [2023-12-15 20:18:35,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 20:18:35,838 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 20:18:35,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 20:18:35,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-15 20:18:35,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-12-15 20:18:35,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 76 states have (on average 1.5263157894736843) internal successors, (116), 76 states have internal predecessors, (116), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-15 20:18:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 174 transitions. [2023-12-15 20:18:35,871 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 174 transitions. Word has length 189 [2023-12-15 20:18:35,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:18:35,872 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 174 transitions. [2023-12-15 20:18:35,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-15 20:18:35,872 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 174 transitions. [2023-12-15 20:18:35,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-15 20:18:35,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:18:35,875 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:18:35,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 20:18:36,080 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 [2023-12-15 20:18:36,081 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:18:36,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:18:36,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1873888463, now seen corresponding path program 1 times [2023-12-15 20:18:36,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:18:36,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63505863] [2023-12-15 20:18:36,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:18:36,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:18:36,159 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:18:36,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243979264] [2023-12-15 20:18:36,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:18:36,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:18:36,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:18:36,182 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) [2023-12-15 20:18:36,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 20:18:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:18:36,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 20:18:36,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:18:36,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 240 proven. 78 refuted. 0 times theorem prover too weak. 1306 trivial. 0 not checked. [2023-12-15 20:18:36,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:18:36,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 6 proven. 78 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-15 20:18:36,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:18:36,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63505863] [2023-12-15 20:18:36,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:18:36,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243979264] [2023-12-15 20:18:36,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243979264] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:18:36,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 20:18:36,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-15 20:18:36,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30459984] [2023-12-15 20:18:36,780 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 20:18:36,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 20:18:36,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:18:36,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 20:18:36,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-15 20:18:36,782 INFO L87 Difference]: Start difference. First operand 107 states and 174 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2023-12-15 20:18:36,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:18:36,981 INFO L93 Difference]: Finished difference Result 218 states and 350 transitions. [2023-12-15 20:18:36,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 20:18:36,981 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 190 [2023-12-15 20:18:36,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:18:36,983 INFO L225 Difference]: With dead ends: 218 [2023-12-15 20:18:36,983 INFO L226 Difference]: Without dead ends: 112 [2023-12-15 20:18:36,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-12-15 20:18:36,984 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 155 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 20:18:36,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 456 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 20:18:36,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-15 20:18:36,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2023-12-15 20:18:36,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 78 states have (on average 1.4743589743589745) internal successors, (115), 78 states have internal predecessors, (115), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-15 20:18:36,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 173 transitions. [2023-12-15 20:18:36,996 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 173 transitions. Word has length 190 [2023-12-15 20:18:36,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:18:36,996 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 173 transitions. [2023-12-15 20:18:36,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2023-12-15 20:18:36,997 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 173 transitions. [2023-12-15 20:18:36,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-15 20:18:36,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:18:36,999 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:18:37,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 20:18:37,204 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 [2023-12-15 20:18:37,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:18:37,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:18:37,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1804516328, now seen corresponding path program 1 times [2023-12-15 20:18:37,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:18:37,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520607931] [2023-12-15 20:18:37,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:18:37,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:18:37,250 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:18:37,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1288257089] [2023-12-15 20:18:37,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:18:37,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:18:37,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:18:37,281 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) [2023-12-15 20:18:37,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 20:18:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:18:37,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 20:18:37,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:18:37,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2023-12-15 20:18:37,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:18:37,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:18:37,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520607931] [2023-12-15 20:18:37,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:18:37,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288257089] [2023-12-15 20:18:37,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288257089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:18:37,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:18:37,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 20:18:37,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042689365] [2023-12-15 20:18:37,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:18:37,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 20:18:37,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:18:37,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 20:18:37,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:18:37,426 INFO L87 Difference]: Start difference. First operand 110 states and 173 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-15 20:18:37,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:18:37,471 INFO L93 Difference]: Finished difference Result 319 states and 503 transitions. [2023-12-15 20:18:37,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 20:18:37,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 191 [2023-12-15 20:18:37,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:18:37,476 INFO L225 Difference]: With dead ends: 319 [2023-12-15 20:18:37,476 INFO L226 Difference]: Without dead ends: 210 [2023-12-15 20:18:37,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:18:37,480 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 149 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 20:18:37,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 369 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 20:18:37,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-12-15 20:18:37,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 124. [2023-12-15 20:18:37,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 92 states have (on average 1.5) internal successors, (138), 92 states have internal predecessors, (138), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-15 20:18:37,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 196 transitions. [2023-12-15 20:18:37,521 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 196 transitions. Word has length 191 [2023-12-15 20:18:37,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:18:37,523 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 196 transitions. [2023-12-15 20:18:37,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-15 20:18:37,524 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 196 transitions. [2023-12-15 20:18:37,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-15 20:18:37,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:18:37,530 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:18:37,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 20:18:37,746 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 [2023-12-15 20:18:37,748 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:18:37,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:18:37,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2023371046, now seen corresponding path program 1 times [2023-12-15 20:18:37,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:18:37,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174314302] [2023-12-15 20:18:37,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:18:37,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:18:37,771 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:18:37,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457745080] [2023-12-15 20:18:37,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:18:37,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:18:37,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:18:37,772 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) [2023-12-15 20:18:37,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 20:18:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:18:37,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 20:18:37,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:18:37,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 838 proven. 39 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2023-12-15 20:18:37,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:18:38,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 45 proven. 39 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-15 20:18:38,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:18:38,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174314302] [2023-12-15 20:18:38,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:18:38,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457745080] [2023-12-15 20:18:38,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457745080] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:18:38,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 20:18:38,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-15 20:18:38,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998460112] [2023-12-15 20:18:38,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 20:18:38,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 20:18:38,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:18:38,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 20:18:38,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-15 20:18:38,141 INFO L87 Difference]: Start difference. First operand 124 states and 196 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2023-12-15 20:18:38,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:18:38,691 INFO L93 Difference]: Finished difference Result 491 states and 750 transitions. [2023-12-15 20:18:38,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-15 20:18:38,692 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 191 [2023-12-15 20:18:38,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:18:38,694 INFO L225 Difference]: With dead ends: 491 [2023-12-15 20:18:38,694 INFO L226 Difference]: Without dead ends: 368 [2023-12-15 20:18:38,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 374 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-12-15 20:18:38,695 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 377 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 20:18:38,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1112 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 20:18:38,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-12-15 20:18:38,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 265. [2023-12-15 20:18:38,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 184 states have (on average 1.4184782608695652) internal successors, (261), 186 states have internal predecessors, (261), 73 states have call successors, (73), 7 states have call predecessors, (73), 7 states have return successors, (73), 71 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-15 20:18:38,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 407 transitions. [2023-12-15 20:18:38,720 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 407 transitions. Word has length 191 [2023-12-15 20:18:38,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:18:38,720 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 407 transitions. [2023-12-15 20:18:38,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2023-12-15 20:18:38,721 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 407 transitions. [2023-12-15 20:18:38,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-15 20:18:38,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:18:38,722 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:18:38,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 20:18:38,927 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 [2023-12-15 20:18:38,927 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:18:38,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:18:38,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1513897956, now seen corresponding path program 1 times [2023-12-15 20:18:38,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:18:38,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540713716] [2023-12-15 20:18:38,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:18:38,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:18:38,961 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:18:38,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858353415] [2023-12-15 20:18:38,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:18:38,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:18:38,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:18:38,963 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) [2023-12-15 20:18:38,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 20:18:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:18:39,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 20:18:39,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:18:39,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2023-12-15 20:18:39,114 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:18:39,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:18:39,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540713716] [2023-12-15 20:18:39,117 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:18:39,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858353415] [2023-12-15 20:18:39,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858353415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:18:39,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:18:39,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 20:18:39,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374198466] [2023-12-15 20:18:39,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:18:39,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 20:18:39,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:18:39,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 20:18:39,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:18:39,119 INFO L87 Difference]: Start difference. First operand 265 states and 407 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-15 20:18:39,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:18:39,199 INFO L93 Difference]: Finished difference Result 613 states and 936 transitions. [2023-12-15 20:18:39,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 20:18:39,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 191 [2023-12-15 20:18:39,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:18:39,203 INFO L225 Difference]: With dead ends: 613 [2023-12-15 20:18:39,203 INFO L226 Difference]: Without dead ends: 377 [2023-12-15 20:18:39,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:18:39,205 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 148 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 20:18:39,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 399 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 20:18:39,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-12-15 20:18:39,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 297. [2023-12-15 20:18:39,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 216 states have (on average 1.4166666666666667) internal successors, (306), 218 states have internal predecessors, (306), 73 states have call successors, (73), 7 states have call predecessors, (73), 7 states have return successors, (73), 71 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-15 20:18:39,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 452 transitions. [2023-12-15 20:18:39,238 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 452 transitions. Word has length 191 [2023-12-15 20:18:39,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:18:39,239 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 452 transitions. [2023-12-15 20:18:39,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-15 20:18:39,239 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 452 transitions. [2023-12-15 20:18:39,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-15 20:18:39,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:18:39,241 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:18:39,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 20:18:39,446 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 [2023-12-15 20:18:39,446 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:18:39,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:18:39,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2118654761, now seen corresponding path program 1 times [2023-12-15 20:18:39,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:18:39,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683770905] [2023-12-15 20:18:39,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:18:39,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:18:39,477 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:18:39,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1763000774] [2023-12-15 20:18:39,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:18:39,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:18:39,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:18:39,479 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) [2023-12-15 20:18:39,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 20:18:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:18:39,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-15 20:18:39,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:18:40,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2023-12-15 20:18:40,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:18:40,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:18:40,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683770905] [2023-12-15 20:18:40,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:18:40,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763000774] [2023-12-15 20:18:40,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763000774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:18:40,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:18:40,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 20:18:40,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303519333] [2023-12-15 20:18:40,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:18:40,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 20:18:40,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:18:40,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 20:18:40,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=33, Unknown=1, NotChecked=0, Total=56 [2023-12-15 20:18:40,556 INFO L87 Difference]: Start difference. First operand 297 states and 452 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-15 20:18:47,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:18:47,066 INFO L93 Difference]: Finished difference Result 981 states and 1476 transitions. [2023-12-15 20:18:47,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 20:18:47,079 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 192 [2023-12-15 20:18:47,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:18:47,082 INFO L225 Difference]: With dead ends: 981 [2023-12-15 20:18:47,082 INFO L226 Difference]: Without dead ends: 713 [2023-12-15 20:18:47,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=55, Unknown=1, NotChecked=0, Total=90 [2023-12-15 20:18:47,084 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 256 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 33 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-12-15 20:18:47,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 785 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 303 Invalid, 3 Unknown, 0 Unchecked, 6.0s Time] [2023-12-15 20:18:47,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2023-12-15 20:18:47,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 506. [2023-12-15 20:18:47,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 401 states have (on average 1.4688279301745637) internal successors, (589), 405 states have internal predecessors, (589), 93 states have call successors, (93), 11 states have call predecessors, (93), 11 states have return successors, (93), 89 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-15 20:18:47,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 775 transitions. [2023-12-15 20:18:47,141 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 775 transitions. Word has length 192 [2023-12-15 20:18:47,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:18:47,141 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 775 transitions. [2023-12-15 20:18:47,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-15 20:18:47,141 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 775 transitions. [2023-12-15 20:18:47,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-15 20:18:47,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:18:47,143 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:18:47,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-15 20:18:47,348 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 [2023-12-15 20:18:47,349 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:18:47,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:18:47,349 INFO L85 PathProgramCache]: Analyzing trace with hash -2119054233, now seen corresponding path program 1 times [2023-12-15 20:18:47,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:18:47,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857479089] [2023-12-15 20:18:47,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:18:47,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:18:47,374 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:18:47,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1035186191] [2023-12-15 20:18:47,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:18:47,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:18:47,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:18:47,387 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) [2023-12-15 20:18:47,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 20:18:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:18:47,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-15 20:18:47,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:18:48,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 556 proven. 207 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-12-15 20:18:48,695 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:18:56,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 21 proven. 63 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-15 20:18:56,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:18:56,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857479089] [2023-12-15 20:18:56,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:18:56,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035186191] [2023-12-15 20:18:56,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035186191] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:18:56,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 20:18:56,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11] total 26 [2023-12-15 20:18:56,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096367552] [2023-12-15 20:18:56,155 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 20:18:56,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-15 20:18:56,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:18:56,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-15 20:18:56,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=452, Unknown=0, NotChecked=0, Total=650 [2023-12-15 20:18:56,157 INFO L87 Difference]: Start difference. First operand 506 states and 775 transitions. Second operand has 26 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 25 states have internal predecessors, (112), 6 states have call successors, (58), 5 states have call predecessors, (58), 8 states have return successors, (58), 6 states have call predecessors, (58), 6 states have call successors, (58) [2023-12-15 20:19:01,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Real, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-15 20:19:25,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-15 20:19:46,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:19:46,410 INFO L93 Difference]: Finished difference Result 3444 states and 5071 transitions. [2023-12-15 20:19:46,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2023-12-15 20:19:46,411 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 25 states have internal predecessors, (112), 6 states have call successors, (58), 5 states have call predecessors, (58), 8 states have return successors, (58), 6 states have call predecessors, (58), 6 states have call successors, (58) Word has length 192 [2023-12-15 20:19:46,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:19:46,422 INFO L225 Difference]: With dead ends: 3444 [2023-12-15 20:19:46,422 INFO L226 Difference]: Without dead ends: 2967 [2023-12-15 20:19:46,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3618 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=2599, Invalid=5411, Unknown=0, NotChecked=0, Total=8010 [2023-12-15 20:19:46,425 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 1784 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 2208 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1797 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 2208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2023-12-15 20:19:46,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1797 Valid, 1313 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 2208 Invalid, 0 Unknown, 0 Unchecked, 30.2s Time] [2023-12-15 20:19:46,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2023-12-15 20:19:46,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 1639. [2023-12-15 20:19:46,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1406 states have (on average 1.4310099573257469) internal successors, (2012), 1421 states have internal predecessors, (2012), 176 states have call successors, (176), 56 states have call predecessors, (176), 56 states have return successors, (176), 161 states have call predecessors, (176), 176 states have call successors, (176) [2023-12-15 20:19:46,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2364 transitions. [2023-12-15 20:19:46,551 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2364 transitions. Word has length 192 [2023-12-15 20:19:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:19:46,552 INFO L495 AbstractCegarLoop]: Abstraction has 1639 states and 2364 transitions. [2023-12-15 20:19:46,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 25 states have internal predecessors, (112), 6 states have call successors, (58), 5 states have call predecessors, (58), 8 states have return successors, (58), 6 states have call predecessors, (58), 6 states have call successors, (58) [2023-12-15 20:19:46,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2364 transitions. [2023-12-15 20:19:46,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-15 20:19:46,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:19:46,556 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:19:46,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-15 20:19:46,762 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 [2023-12-15 20:19:46,762 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:19:46,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:19:46,763 INFO L85 PathProgramCache]: Analyzing trace with hash 804568425, now seen corresponding path program 1 times [2023-12-15 20:19:46,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:19:46,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777740457] [2023-12-15 20:19:46,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:19:46,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:19:46,779 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:19:46,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2056158380] [2023-12-15 20:19:46,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:19:46,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:19:46,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:19:46,784 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) [2023-12-15 20:19:46,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-15 20:19:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:19:46,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-15 20:19:46,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:19:47,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 240 proven. 78 refuted. 0 times theorem prover too weak. 1306 trivial. 0 not checked. [2023-12-15 20:19:47,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:19:47,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 6 proven. 78 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-15 20:19:47,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:19:47,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777740457] [2023-12-15 20:19:47,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:19:47,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056158380] [2023-12-15 20:19:47,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056158380] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:19:47,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 20:19:47,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-12-15 20:19:47,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653506857] [2023-12-15 20:19:47,922 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 20:19:47,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-15 20:19:47,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:19:47,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-15 20:19:47,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-12-15 20:19:47,924 INFO L87 Difference]: Start difference. First operand 1639 states and 2364 transitions. Second operand has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 4 states have call successors, (58), 3 states have call predecessors, (58), 5 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) Received shutdown request... [2023-12-15 20:19:49,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-15 20:19:49,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=492, Invalid=1400, Unknown=0, NotChecked=0, Total=1892 [2023-12-15 20:19:49,830 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 1283 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 20:19:49,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 854 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 20:19:49,832 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 20:19:49,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-15 20:19:49,873 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 [2023-12-15 20:19:49,875 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 20:19:50,032 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 [2023-12-15 20:19:50,032 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (1639states) and FLOYD_HOARE automaton (currently 31 states, 18 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 44 known predicates. [2023-12-15 20:19:50,038 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:19:50,040 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 20:19:50,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 08:19:50 BoogieIcfgContainer [2023-12-15 20:19:50,043 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 20:19:50,043 INFO L158 Benchmark]: Toolchain (without parser) took 75782.56ms. Allocated memory was 267.4MB in the beginning and 320.9MB in the end (delta: 53.5MB). Free memory was 220.6MB in the beginning and 199.4MB in the end (delta: 21.3MB). Peak memory consumption was 75.2MB. Max. memory is 8.0GB. [2023-12-15 20:19:50,043 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 189.8MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 20:19:50,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.84ms. Allocated memory is still 267.4MB. Free memory was 220.4MB in the beginning and 204.2MB in the end (delta: 16.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-15 20:19:50,043 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.13ms. Allocated memory is still 267.4MB. Free memory was 203.9MB in the beginning and 197.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 20:19:50,044 INFO L158 Benchmark]: Boogie Preprocessor took 72.37ms. Allocated memory is still 267.4MB. Free memory was 197.6MB in the beginning and 189.9MB in the end (delta: 7.6MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-15 20:19:50,044 INFO L158 Benchmark]: RCFGBuilder took 570.75ms. Allocated memory is still 267.4MB. Free memory was 189.9MB in the beginning and 204.7MB in the end (delta: -14.7MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-15 20:19:50,044 INFO L158 Benchmark]: TraceAbstraction took 74796.46ms. Allocated memory was 267.4MB in the beginning and 320.9MB in the end (delta: 53.5MB). Free memory was 204.2MB in the beginning and 199.4MB in the end (delta: 4.8MB). Peak memory consumption was 58.5MB. Max. memory is 8.0GB. [2023-12-15 20:19:50,045 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 189.8MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 275.84ms. Allocated memory is still 267.4MB. Free memory was 220.4MB in the beginning and 204.2MB in the end (delta: 16.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.13ms. Allocated memory is still 267.4MB. Free memory was 203.9MB in the beginning and 197.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.37ms. Allocated memory is still 267.4MB. Free memory was 197.6MB in the beginning and 189.9MB in the end (delta: 7.6MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 570.75ms. Allocated memory is still 267.4MB. Free memory was 189.9MB in the beginning and 204.7MB in the end (delta: -14.7MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 74796.46ms. Allocated memory was 267.4MB in the beginning and 320.9MB in the end (delta: 53.5MB). Free memory was 204.2MB in the beginning and 199.4MB in the end (delta: 4.8MB). Peak memory consumption was 58.5MB. 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 constructing difference of abstraction (1639states) and FLOYD_HOARE automaton (currently 31 states, 18 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 44 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 109 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 74.7s, OverallIterations: 8, TraceHistogramMax: 29, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 59.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 4199 SdHoareTripleChecker+Valid, 38.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4152 mSDsluCounter, 5459 SdHoareTripleChecker+Invalid, 37.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3955 mSDsCounter, 525 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4641 IncrementalHoareTripleChecker+Invalid, 5169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 525 mSolverCounterUnsat, 1504 mSDtfsCounter, 4641 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2414 GetRequests, 2235 SyntacticMatches, 1 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4223 ImplicationChecksByTransitivity, 23.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1639occurred in iteration=7, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 1806 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 1717 NumberOfCodeBlocks, 1717 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2281 ConstructedInterpolants, 4 QuantifiedInterpolants, 11814 SizeOfPredicates, 37 NumberOfNonLiveVariables, 3672 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 18828/19488 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