/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/forester-heap/sll-optional-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:51:44,525 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:51:44,611 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 21:51:44,615 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:51:44,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:51:44,643 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:51:44,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:51:44,644 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:51:44,645 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:51:44,648 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:51:44,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:51:44,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:51:44,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:51:44,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:51:44,651 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:51:44,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:51:44,652 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:51:44,652 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:51:44,652 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:51:44,653 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:51:44,653 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:51:44,654 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:51:44,654 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:51:44,654 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:51:44,654 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:51:44,654 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:51:44,655 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:51:44,655 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:51:44,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:51:44,656 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:51:44,656 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:51:44,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:51:44,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:51:44,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:51:44,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:51:44,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:51:44,657 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:51:44,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:51:44,658 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:51:44,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:51:44,658 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:51:44,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:51:44,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:51:44,659 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:51:44,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:51:44,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:51:44,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:51:44,936 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:51:44,937 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:51:44,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-optional-1.i [2023-12-15 21:51:46,196 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:51:46,441 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:51:46,443 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-optional-1.i [2023-12-15 21:51:46,459 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a58899e2f/e1d5656500e941f78cbb64674513e800/FLAGe64b99443 [2023-12-15 21:51:46,471 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a58899e2f/e1d5656500e941f78cbb64674513e800 [2023-12-15 21:51:46,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:51:46,474 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:51:46,475 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:51:46,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:51:46,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:51:46,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:51:46" (1/1) ... [2023-12-15 21:51:46,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@484c16af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46, skipping insertion in model container [2023-12-15 21:51:46,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:51:46" (1/1) ... [2023-12-15 21:51:46,514 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:51:46,757 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-optional-1.i[22688,22701] [2023-12-15 21:51:46,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:51:46,775 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:51:46,821 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-optional-1.i[22688,22701] [2023-12-15 21:51:46,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:51:46,853 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:51:46,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46 WrapperNode [2023-12-15 21:51:46,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:51:46,855 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:51:46,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:51:46,855 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:51:46,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46" (1/1) ... [2023-12-15 21:51:46,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46" (1/1) ... [2023-12-15 21:51:46,917 INFO L138 Inliner]: procedures = 119, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 133 [2023-12-15 21:51:46,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:51:46,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:51:46,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:51:46,918 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:51:46,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46" (1/1) ... [2023-12-15 21:51:46,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46" (1/1) ... [2023-12-15 21:51:46,947 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46" (1/1) ... [2023-12-15 21:51:46,974 INFO L175 MemorySlicer]: Split 31 memory accesses to 2 slices as follows [2, 29]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 17 writes are split as follows [0, 17]. [2023-12-15 21:51:46,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46" (1/1) ... [2023-12-15 21:51:46,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46" (1/1) ... [2023-12-15 21:51:46,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46" (1/1) ... [2023-12-15 21:51:46,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46" (1/1) ... [2023-12-15 21:51:46,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46" (1/1) ... [2023-12-15 21:51:46,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46" (1/1) ... [2023-12-15 21:51:46,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:51:46,998 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:51:46,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:51:46,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:51:46,999 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46" (1/1) ... [2023-12-15 21:51:47,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:51:47,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:51:47,022 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 21:51:47,042 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 21:51:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-15 21:51:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-15 21:51:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-15 21:51:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-15 21:51:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-15 21:51:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:51:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-15 21:51:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-15 21:51:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-15 21:51:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-15 21:51:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-15 21:51:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:51:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 21:51:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:51:47,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:51:47,168 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:51:47,170 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:51:47,409 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:51:47,428 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:51:47,428 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-15 21:51:47,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:51:47 BoogieIcfgContainer [2023-12-15 21:51:47,428 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:51:47,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:51:47,430 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:51:47,433 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:51:47,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:51:46" (1/3) ... [2023-12-15 21:51:47,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75486f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:51:47, skipping insertion in model container [2023-12-15 21:51:47,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:51:46" (2/3) ... [2023-12-15 21:51:47,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75486f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:51:47, skipping insertion in model container [2023-12-15 21:51:47,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:51:47" (3/3) ... [2023-12-15 21:51:47,436 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-optional-1.i [2023-12-15 21:51:47,469 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:51:47,469 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:51:47,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:51:47,515 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;@3e449f5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:51:47,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:51:47,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.72) internal successors, (43), 26 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:47,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-15 21:51:47,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:51:47,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:51:47,526 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:51:47,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:51:47,535 INFO L85 PathProgramCache]: Analyzing trace with hash -218752740, now seen corresponding path program 1 times [2023-12-15 21:51:47,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:51:47,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137555492] [2023-12-15 21:51:47,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:51:47,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:51:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:51:47,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 21:51:47,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:51:47,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137555492] [2023-12-15 21:51:47,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137555492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:51:47,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:51:47,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:51:47,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427801215] [2023-12-15 21:51:47,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:51:47,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:51:47,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:51:47,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:51:47,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:51:47,800 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.72) internal successors, (43), 26 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:47,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:51:47,823 INFO L93 Difference]: Finished difference Result 46 states and 72 transitions. [2023-12-15 21:51:47,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:51:47,825 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-12-15 21:51:47,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:51:47,832 INFO L225 Difference]: With dead ends: 46 [2023-12-15 21:51:47,832 INFO L226 Difference]: Without dead ends: 21 [2023-12-15 21:51:47,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 21:51:47,837 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:51:47,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:51:47,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-12-15 21:51:47,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-12-15 21:51:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:47,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2023-12-15 21:51:47,865 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 14 [2023-12-15 21:51:47,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:51:47,865 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2023-12-15 21:51:47,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:47,866 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2023-12-15 21:51:47,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-15 21:51:47,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:51:47,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:51:47,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 21:51:47,868 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:51:47,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:51:47,870 INFO L85 PathProgramCache]: Analyzing trace with hash 43418518, now seen corresponding path program 1 times [2023-12-15 21:51:47,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:51:47,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769803431] [2023-12-15 21:51:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:51:47,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:51:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:51:47,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 21:51:48,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:51:48,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769803431] [2023-12-15 21:51:48,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769803431] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:51:48,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:51:48,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:51:48,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842455368] [2023-12-15 21:51:48,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:51:48,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:51:48,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:51:48,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:51:48,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:51:48,003 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:48,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:51:48,019 INFO L93 Difference]: Finished difference Result 24 states and 32 transitions. [2023-12-15 21:51:48,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:51:48,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-12-15 21:51:48,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:51:48,021 INFO L225 Difference]: With dead ends: 24 [2023-12-15 21:51:48,022 INFO L226 Difference]: Without dead ends: 22 [2023-12-15 21:51:48,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 21:51:48,023 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:51:48,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:51:48,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-12-15 21:51:48,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-12-15 21:51:48,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:48,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2023-12-15 21:51:48,030 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 15 [2023-12-15 21:51:48,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:51:48,031 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2023-12-15 21:51:48,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:48,031 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2023-12-15 21:51:48,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-15 21:51:48,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:51:48,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:51:48,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 21:51:48,032 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:51:48,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:51:48,034 INFO L85 PathProgramCache]: Analyzing trace with hash 43420440, now seen corresponding path program 1 times [2023-12-15 21:51:48,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:51:48,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833454188] [2023-12-15 21:51:48,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:51:48,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:51:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:51:48,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 21:51:48,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:51:48,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833454188] [2023-12-15 21:51:48,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833454188] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:51:48,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:51:48,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 21:51:48,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367019414] [2023-12-15 21:51:48,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:51:48,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:51:48,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:51:48,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:51:48,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:51:48,355 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:48,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:51:48,541 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2023-12-15 21:51:48,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 21:51:48,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-12-15 21:51:48,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:51:48,546 INFO L225 Difference]: With dead ends: 39 [2023-12-15 21:51:48,546 INFO L226 Difference]: Without dead ends: 37 [2023-12-15 21:51:48,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-15 21:51:48,553 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 16 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:51:48,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 66 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:51:48,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-12-15 21:51:48,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2023-12-15 21:51:48,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:48,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2023-12-15 21:51:48,559 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 15 [2023-12-15 21:51:48,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:51:48,560 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2023-12-15 21:51:48,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:48,560 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2023-12-15 21:51:48,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-15 21:51:48,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:51:48,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:51:48,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 21:51:48,562 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:51:48,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:51:48,565 INFO L85 PathProgramCache]: Analyzing trace with hash 41573398, now seen corresponding path program 1 times [2023-12-15 21:51:48,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:51:48,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600804871] [2023-12-15 21:51:48,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:51:48,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:51:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:51:49,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 21:51:49,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:51:49,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600804871] [2023-12-15 21:51:49,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600804871] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:51:49,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:51:49,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 21:51:49,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241305425] [2023-12-15 21:51:49,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:51:49,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:51:49,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:51:49,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:51:49,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:51:49,050 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:49,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:51:49,364 INFO L93 Difference]: Finished difference Result 87 states and 114 transitions. [2023-12-15 21:51:49,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 21:51:49,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-12-15 21:51:49,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:51:49,367 INFO L225 Difference]: With dead ends: 87 [2023-12-15 21:51:49,367 INFO L226 Difference]: Without dead ends: 70 [2023-12-15 21:51:49,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 21:51:49,376 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 109 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:51:49,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 69 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:51:49,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-12-15 21:51:49,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 39. [2023-12-15 21:51:49,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:49,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2023-12-15 21:51:49,389 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 15 [2023-12-15 21:51:49,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:51:49,389 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2023-12-15 21:51:49,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:49,389 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2023-12-15 21:51:49,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-15 21:51:49,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:51:49,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:51:49,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 21:51:49,390 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:51:49,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:51:49,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1818427802, now seen corresponding path program 1 times [2023-12-15 21:51:49,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:51:49,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776660880] [2023-12-15 21:51:49,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:51:49,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:51:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:51:49,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 21:51:49,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:51:49,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776660880] [2023-12-15 21:51:49,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776660880] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:51:49,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:51:49,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:51:49,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367471602] [2023-12-15 21:51:49,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:51:49,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:51:49,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:51:49,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:51:49,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:51:49,559 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:49,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:51:49,691 INFO L93 Difference]: Finished difference Result 80 states and 105 transitions. [2023-12-15 21:51:49,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 21:51:49,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-12-15 21:51:49,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:51:49,694 INFO L225 Difference]: With dead ends: 80 [2023-12-15 21:51:49,694 INFO L226 Difference]: Without dead ends: 59 [2023-12-15 21:51:49,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-15 21:51:49,695 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 81 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:51:49,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 70 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:51:49,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-15 21:51:49,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 37. [2023-12-15 21:51:49,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 36 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:49,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2023-12-15 21:51:49,701 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 15 [2023-12-15 21:51:49,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:51:49,701 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 49 transitions. [2023-12-15 21:51:49,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:49,701 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2023-12-15 21:51:49,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-15 21:51:49,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:51:49,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:51:49,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 21:51:49,702 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:51:49,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:51:49,703 INFO L85 PathProgramCache]: Analyzing trace with hash -570392850, now seen corresponding path program 1 times [2023-12-15 21:51:49,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:51:49,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29587031] [2023-12-15 21:51:49,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:51:49,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:51:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:51:49,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 21:51:49,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:51:49,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29587031] [2023-12-15 21:51:49,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29587031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:51:49,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:51:49,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:51:49,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015311653] [2023-12-15 21:51:49,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:51:49,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:51:49,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:51:49,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:51:49,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:51:49,855 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:49,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:51:49,996 INFO L93 Difference]: Finished difference Result 79 states and 103 transitions. [2023-12-15 21:51:49,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 21:51:49,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-15 21:51:49,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:51:49,998 INFO L225 Difference]: With dead ends: 79 [2023-12-15 21:51:49,998 INFO L226 Difference]: Without dead ends: 77 [2023-12-15 21:51:49,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:51:49,999 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 40 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:51:49,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 101 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:51:50,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-12-15 21:51:50,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 45. [2023-12-15 21:51:50,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 44 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:50,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2023-12-15 21:51:50,018 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 16 [2023-12-15 21:51:50,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:51:50,018 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2023-12-15 21:51:50,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:51:50,019 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2023-12-15 21:51:50,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-15 21:51:50,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:51:50,020 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:51:50,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 21:51:50,020 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:51:50,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:51:50,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1822439760, now seen corresponding path program 1 times [2023-12-15 21:51:50,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:51:50,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003693247] [2023-12-15 21:51:50,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:51:50,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:51:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:51:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 21:51:51,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:51:51,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003693247] [2023-12-15 21:51:51,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003693247] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 21:51:51,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550444819] [2023-12-15 21:51:51,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:51:51,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:51:51,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:51:51,040 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 21:51:51,050 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 21:51:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:51:51,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 74 conjunts are in the unsatisfiable core [2023-12-15 21:51:51,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:51:51,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-15 21:51:51,314 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-12-15 21:51:51,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2023-12-15 21:51:51,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 11 [2023-12-15 21:51:51,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2023-12-15 21:51:51,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:51:51,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2023-12-15 21:51:51,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:51:51,535 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-15 21:51:51,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 52 [2023-12-15 21:51:51,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:51:51,561 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2023-12-15 21:51:51,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 48 [2023-12-15 21:51:51,596 INFO L349 Elim1Store]: treesize reduction 32, result has 45.8 percent of original size [2023-12-15 21:51:51,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 42 [2023-12-15 21:51:51,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:51:51,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-15 21:51:51,685 INFO L349 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2023-12-15 21:51:51,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2023-12-15 21:51:51,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:51:51,894 INFO L349 Elim1Store]: treesize reduction 172, result has 13.6 percent of original size [2023-12-15 21:51:51,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 161 treesize of output 168 [2023-12-15 21:51:51,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:51:51,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:51:51,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:51:51,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:51:51,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 58 [2023-12-15 21:51:51,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2023-12-15 21:51:51,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 95 [2023-12-15 21:51:51,984 INFO L349 Elim1Store]: treesize reduction 12, result has 78.9 percent of original size [2023-12-15 21:51:51,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 57 [2023-12-15 21:51:52,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2023-12-15 21:51:52,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-12-15 21:51:53,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:51:53,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:51:53,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 16 [2023-12-15 21:51:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 21:51:53,365 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:51:53,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:51:53,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 251 treesize of output 219 [2023-12-15 21:51:53,620 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:51:53,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 275 treesize of output 243 [2023-12-15 21:52:17,008 WARN L293 SmtUtils]: Spent 8.33s on a formula simplification. DAG size of input: 188 DAG size of output: 110 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-15 21:52:17,008 INFO L349 Elim1Store]: treesize reduction 2114, result has 30.8 percent of original size [2023-12-15 21:52:17,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 29 case distinctions, treesize of input 15339593 treesize of output 14341111 [2023-12-15 21:52:26,172 WARN L293 SmtUtils]: Spent 7.11s on a formula simplification. DAG size of input: 649 DAG size of output: 181 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-15 21:52:26,173 INFO L349 Elim1Store]: treesize reduction 1553, result has 19.6 percent of original size [2023-12-15 21:52:26,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 25 new quantified variables, introduced 137 case distinctions, treesize of input 94464423 treesize of output 64644334 [2023-12-15 21:52:41,434 WARN L293 SmtUtils]: Spent 15.24s on a formula simplification. DAG size of input: 7336 DAG size of output: 1766 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-15 21:52:45,365 INFO L349 Elim1Store]: treesize reduction 1209, result has 22.5 percent of original size [2023-12-15 21:52:45,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 20 new quantified variables, introduced 106 case distinctions, treesize of input 76336 treesize of output 52382 Received shutdown request... [2023-12-15 21:52:54,361 WARN L235 SmtUtils]: Removed 40 from assertion stack [2023-12-15 21:52:54,363 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 21:52:54,373 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 21:52:54,374 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:52:54,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 21:52:54,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:52:54,564 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 19 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 354 for 7632ms.. [2023-12-15 21:52:54,568 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:52:54,571 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:52:54,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:52:54 BoogieIcfgContainer [2023-12-15 21:52:54,573 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:52:54,573 INFO L158 Benchmark]: Toolchain (without parser) took 68099.31ms. Allocated memory was 248.5MB in the beginning and 746.6MB in the end (delta: 498.1MB). Free memory was 199.2MB in the beginning and 466.9MB in the end (delta: -267.7MB). Peak memory consumption was 441.0MB. Max. memory is 8.0GB. [2023-12-15 21:52:54,573 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 201.3MB. Free memory is still 156.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:52:54,573 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.75ms. Allocated memory is still 248.5MB. Free memory was 198.9MB in the beginning and 180.7MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-15 21:52:54,576 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.62ms. Allocated memory is still 248.5MB. Free memory was 180.7MB in the beginning and 178.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 21:52:54,577 INFO L158 Benchmark]: Boogie Preprocessor took 79.42ms. Allocated memory is still 248.5MB. Free memory was 178.6MB in the beginning and 175.8MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 21:52:54,577 INFO L158 Benchmark]: RCFGBuilder took 430.36ms. Allocated memory is still 248.5MB. Free memory was 175.8MB in the beginning and 158.0MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-15 21:52:54,577 INFO L158 Benchmark]: TraceAbstraction took 67142.28ms. Allocated memory was 248.5MB in the beginning and 746.6MB in the end (delta: 498.1MB). Free memory was 157.3MB in the beginning and 466.9MB in the end (delta: -309.7MB). Peak memory consumption was 399.0MB. Max. memory is 8.0GB. [2023-12-15 21:52:54,578 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 201.3MB. Free memory is still 156.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 378.75ms. Allocated memory is still 248.5MB. Free memory was 198.9MB in the beginning and 180.7MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.62ms. Allocated memory is still 248.5MB. Free memory was 180.7MB in the beginning and 178.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 79.42ms. Allocated memory is still 248.5MB. Free memory was 178.6MB in the beginning and 175.8MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 430.36ms. Allocated memory is still 248.5MB. Free memory was 175.8MB in the beginning and 158.0MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 67142.28ms. Allocated memory was 248.5MB in the beginning and 746.6MB in the end (delta: 498.1MB). Free memory was 157.3MB in the beginning and 466.9MB in the end (delta: -309.7MB). Peak memory consumption was 399.0MB. 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: 1007]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1007). Cancelled while NwaCegarLoop was analyzing trace of length 19 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 354 for 7632ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.1s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 246 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 246 mSDsluCounter, 391 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 236 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 299 IncrementalHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 155 mSDtfsCounter, 299 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=6, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 96 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 712 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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