/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/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 23:02:00,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 23:02:00,114 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 23:02:00,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 23:02:00,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 23:02:00,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 23:02:00,139 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 23:02:00,139 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 23:02:00,140 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 23:02:00,142 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 23:02:00,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 23:02:00,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 23:02:00,143 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 23:02:00,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 23:02:00,144 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 23:02:00,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 23:02:00,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 23:02:00,145 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 23:02:00,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 23:02:00,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 23:02:00,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 23:02:00,146 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 23:02:00,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 23:02:00,146 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 23:02:00,146 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 23:02:00,146 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 23:02:00,147 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 23:02:00,147 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 23:02:00,147 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 23:02:00,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 23:02:00,148 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 23:02:00,148 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 23:02:00,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:02:00,149 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 23:02:00,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 23:02:00,149 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 23:02:00,149 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 23:02:00,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 23:02:00,149 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 23:02:00,149 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 23:02:00,149 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 23:02:00,150 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 23:02:00,150 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 23:02:00,150 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 23:02:00,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 23:02:00,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 23:02:00,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 23:02:00,370 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 23:02:00,371 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 23:02:00,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i [2023-12-15 23:02:01,442 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 23:02:01,664 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 23:02:01,665 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i [2023-12-15 23:02:01,672 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0478419b7/8bab7682bdb342879f7183b561a3ced2/FLAGb1df90bbb [2023-12-15 23:02:02,039 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0478419b7/8bab7682bdb342879f7183b561a3ced2 [2023-12-15 23:02:02,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 23:02:02,042 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 23:02:02,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 23:02:02,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 23:02:02,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 23:02:02,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:02:02" (1/1) ... [2023-12-15 23:02:02,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32951904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02, skipping insertion in model container [2023-12-15 23:02:02,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:02:02" (1/1) ... [2023-12-15 23:02:02,063 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 23:02:02,153 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i[1692,1705] [2023-12-15 23:02:02,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:02:02,182 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 23:02:02,189 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i[1692,1705] [2023-12-15 23:02:02,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:02:02,204 INFO L206 MainTranslator]: Completed translation [2023-12-15 23:02:02,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02 WrapperNode [2023-12-15 23:02:02,204 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 23:02:02,205 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 23:02:02,205 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 23:02:02,205 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 23:02:02,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02" (1/1) ... [2023-12-15 23:02:02,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02" (1/1) ... [2023-12-15 23:02:02,225 INFO L138 Inliner]: procedures = 17, calls = 32, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-12-15 23:02:02,225 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 23:02:02,226 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 23:02:02,226 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 23:02:02,226 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 23:02:02,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02" (1/1) ... [2023-12-15 23:02:02,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02" (1/1) ... [2023-12-15 23:02:02,235 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02" (1/1) ... [2023-12-15 23:02:02,245 INFO L175 MemorySlicer]: Split 18 memory accesses to 3 slices as follows [2, 13, 3]. 72 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 5 writes are split as follows [0, 4, 1]. [2023-12-15 23:02:02,245 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02" (1/1) ... [2023-12-15 23:02:02,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02" (1/1) ... [2023-12-15 23:02:02,264 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02" (1/1) ... [2023-12-15 23:02:02,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02" (1/1) ... [2023-12-15 23:02:02,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02" (1/1) ... [2023-12-15 23:02:02,267 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02" (1/1) ... [2023-12-15 23:02:02,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 23:02:02,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 23:02:02,269 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 23:02:02,269 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 23:02:02,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02" (1/1) ... [2023-12-15 23:02:02,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:02:02,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:02:02,305 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 23:02:02,313 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 23:02:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 23:02:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_32_to_33_0 [2023-12-15 23:02:02,330 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_32_to_33_0 [2023-12-15 23:02:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 23:02:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 23:02:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 23:02:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-15 23:02:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-15 23:02:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-15 23:02:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-15 23:02:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 23:02:02,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 23:02:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-15 23:02:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-15 23:02:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-15 23:02:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-15 23:02:02,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-15 23:02:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-15 23:02:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_36_to_40_0 [2023-12-15 23:02:02,333 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_36_to_40_0 [2023-12-15 23:02:02,389 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 23:02:02,391 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 23:02:02,518 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 23:02:02,535 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 23:02:02,535 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-15 23:02:02,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:02:02 BoogieIcfgContainer [2023-12-15 23:02:02,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 23:02:02,537 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 23:02:02,537 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 23:02:02,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 23:02:02,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:02:02" (1/3) ... [2023-12-15 23:02:02,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14147c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:02:02, skipping insertion in model container [2023-12-15 23:02:02,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:02" (2/3) ... [2023-12-15 23:02:02,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14147c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:02:02, skipping insertion in model container [2023-12-15 23:02:02,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:02:02" (3/3) ... [2023-12-15 23:02:02,541 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_simple_array_index_value_1-1.i [2023-12-15 23:02:02,553 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 23:02:02,554 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 23:02:02,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 23:02:02,588 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;@695c2fc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 23:02:02,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 23:02:02,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-15 23:02:02,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-15 23:02:02,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:02:02,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:02:02,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:02:02,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:02:02,601 INFO L85 PathProgramCache]: Analyzing trace with hash -861965109, now seen corresponding path program 1 times [2023-12-15 23:02:02,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:02:02,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24466055] [2023-12-15 23:02:02,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:02:02,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:02:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:03,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:02:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:03,179 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 23:02:03,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:02:03,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24466055] [2023-12-15 23:02:03,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24466055] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:02:03,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:02:03,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:02:03,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935543201] [2023-12-15 23:02:03,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:02:03,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:02:03,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:02:03,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:02:03,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:02:03,209 INFO L87 Difference]: Start difference. First operand has 28 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 23:02:03,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:02:03,361 INFO L93 Difference]: Finished difference Result 54 states and 70 transitions. [2023-12-15 23:02:03,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 23:02:03,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-12-15 23:02:03,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:02:03,368 INFO L225 Difference]: With dead ends: 54 [2023-12-15 23:02:03,368 INFO L226 Difference]: Without dead ends: 26 [2023-12-15 23:02:03,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:02:03,372 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:02:03,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 19 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:02:03,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-12-15 23:02:03,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-12-15 23:02:03,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-15 23:02:03,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-12-15 23:02:03,403 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 15 [2023-12-15 23:02:03,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:02:03,403 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-12-15 23:02:03,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 23:02:03,404 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-12-15 23:02:03,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-15 23:02:03,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:02:03,406 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:02:03,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 23:02:03,406 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:02:03,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:02:03,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1296273823, now seen corresponding path program 1 times [2023-12-15 23:02:03,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:02:03,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508465107] [2023-12-15 23:02:03,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:02:03,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:02:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:03,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:02:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:03,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:02:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:03,877 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-15 23:02:03,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:02:03,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508465107] [2023-12-15 23:02:03,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508465107] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:02:03,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313346178] [2023-12-15 23:02:03,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:02:03,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:02:03,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:02:03,911 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 23:02:03,964 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 23:02:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:04,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 71 conjunts are in the unsatisfiable core [2023-12-15 23:02:04,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:02:04,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-12-15 23:02:04,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 23 [2023-12-15 23:02:04,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-12-15 23:02:04,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-12-15 23:02:04,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:02:04,411 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:02:04,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2023-12-15 23:02:04,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2023-12-15 23:02:05,125 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 23:02:05,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 100 [2023-12-15 23:02:05,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-12-15 23:02:05,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 44 [2023-12-15 23:02:05,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 48 [2023-12-15 23:02:05,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:02:05,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313346178] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 23:02:05,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 23:02:05,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 14, 14] total 34 [2023-12-15 23:02:05,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464248907] [2023-12-15 23:02:05,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 23:02:05,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-15 23:02:05,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:02:05,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-15 23:02:05,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1093, Unknown=0, NotChecked=0, Total=1190 [2023-12-15 23:02:05,346 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 35 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 25 states have internal predecessors, (40), 11 states have call successors, (12), 10 states have call predecessors, (12), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-15 23:02:05,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:02:05,982 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2023-12-15 23:02:05,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 23:02:05,983 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 25 states have internal predecessors, (40), 11 states have call successors, (12), 10 states have call predecessors, (12), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 20 [2023-12-15 23:02:05,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:02:05,984 INFO L225 Difference]: With dead ends: 52 [2023-12-15 23:02:05,984 INFO L226 Difference]: Without dead ends: 33 [2023-12-15 23:02:05,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=178, Invalid=1714, Unknown=0, NotChecked=0, Total=1892 [2023-12-15 23:02:05,985 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 23 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:02:05,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 69 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:02:05,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-12-15 23:02:05,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2023-12-15 23:02:05,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-12-15 23:02:05,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2023-12-15 23:02:05,991 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 20 [2023-12-15 23:02:05,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:02:05,991 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2023-12-15 23:02:05,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 25 states have internal predecessors, (40), 11 states have call successors, (12), 10 states have call predecessors, (12), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-15 23:02:05,991 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-12-15 23:02:05,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-15 23:02:05,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:02:05,992 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:02:06,000 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 23:02:06,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:02:06,198 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:02:06,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:02:06,198 INFO L85 PathProgramCache]: Analyzing trace with hash 963661205, now seen corresponding path program 2 times [2023-12-15 23:02:06,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:02:06,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127786524] [2023-12-15 23:02:06,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:02:06,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:02:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:06,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:02:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:06,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:02:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:06,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:02:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:06,893 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-15 23:02:06,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:02:06,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127786524] [2023-12-15 23:02:06,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127786524] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:02:06,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346378559] [2023-12-15 23:02:06,894 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-15 23:02:06,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:02:06,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:02:06,896 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 23:02:06,898 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 23:02:06,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-15 23:02:06,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 23:02:06,979 WARN L260 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 98 conjunts are in the unsatisfiable core [2023-12-15 23:02:06,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:02:06,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-12-15 23:02:07,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 23 [2023-12-15 23:02:07,243 INFO L349 Elim1Store]: treesize reduction 71, result has 19.3 percent of original size [2023-12-15 23:02:07,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 63 treesize of output 27 [2023-12-15 23:02:07,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-12-15 23:02:07,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-12-15 23:02:07,510 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:02:07,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:02:08,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 41 [2023-12-15 23:02:08,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 98 [2023-12-15 23:02:08,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346378559] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:02:08,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 23:02:08,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 18] total 27 [2023-12-15 23:02:08,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839032293] [2023-12-15 23:02:08,524 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 23:02:08,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-15 23:02:08,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:02:08,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-15 23:02:08,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2023-12-15 23:02:08,526 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 28 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 9 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-15 23:02:10,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:02:10,119 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2023-12-15 23:02:10,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-15 23:02:10,120 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 9 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 25 [2023-12-15 23:02:10,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:02:10,121 INFO L225 Difference]: With dead ends: 72 [2023-12-15 23:02:10,121 INFO L226 Difference]: Without dead ends: 51 [2023-12-15 23:02:10,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=336, Invalid=3086, Unknown=0, NotChecked=0, Total=3422 [2023-12-15 23:02:10,123 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 59 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 23:02:10,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 113 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 23:02:10,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-12-15 23:02:10,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 39. [2023-12-15 23:02:10,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 26 states have internal predecessors, (29), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-15 23:02:10,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2023-12-15 23:02:10,130 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 25 [2023-12-15 23:02:10,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:02:10,130 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2023-12-15 23:02:10,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 9 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-15 23:02:10,130 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2023-12-15 23:02:10,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-15 23:02:10,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:02:10,131 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:02:10,138 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 23:02:10,335 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,SelfDestructingSolverStorable2 [2023-12-15 23:02:10,336 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:02:10,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:02:10,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1954063657, now seen corresponding path program 3 times [2023-12-15 23:02:10,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:02:10,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107233951] [2023-12-15 23:02:10,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:02:10,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:02:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:10,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:02:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:10,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:02:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:11,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:02:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:11,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:02:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:11,251 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-15 23:02:11,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:02:11,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107233951] [2023-12-15 23:02:11,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107233951] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:02:11,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724429698] [2023-12-15 23:02:11,251 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-15 23:02:11,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:02:11,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:02:11,253 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 23:02:11,277 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 23:02:11,356 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-15 23:02:11,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 23:02:11,362 WARN L260 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 140 conjunts are in the unsatisfiable core [2023-12-15 23:02:11,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:02:11,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-12-15 23:02:11,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 23 [2023-12-15 23:02:12,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 23:02:12,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 23:02:12,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 23:02:12,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 27 [2023-12-15 23:02:12,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 23:02:12,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-15 23:02:12,184 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-15 23:02:12,185 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:02:16,738 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:16,739 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:16,740 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:16,741 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:16,743 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:16,745 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:16,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 23:02:16,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 303 treesize of output 398 [2023-12-15 23:02:16,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 190 [2023-12-15 23:02:16,989 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:16,990 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:16,990 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:16,994 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 23:02:16,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 96 treesize of output 48 [2023-12-15 23:02:17,008 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:17,011 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:17,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 48 [2023-12-15 23:02:17,021 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:17,026 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:17,026 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:17,028 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:17,029 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:17,030 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 23:02:17,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 55 [2023-12-15 23:02:17,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-12-15 23:02:18,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724429698] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:02:18,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 23:02:18,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2023-12-15 23:02:18,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20784288] [2023-12-15 23:02:18,365 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 23:02:18,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-15 23:02:18,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:02:18,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-15 23:02:18,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1346, Unknown=0, NotChecked=0, Total=1482 [2023-12-15 23:02:18,367 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 28 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 9 states have call successors, (10), 3 states have call predecessors, (10), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 23:02:21,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:02:21,805 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2023-12-15 23:02:21,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-15 23:02:21,806 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 9 states have call successors, (10), 3 states have call predecessors, (10), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 30 [2023-12-15 23:02:21,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:02:21,808 INFO L225 Difference]: With dead ends: 87 [2023-12-15 23:02:21,808 INFO L226 Difference]: Without dead ends: 52 [2023-12-15 23:02:21,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=487, Invalid=3419, Unknown=0, NotChecked=0, Total=3906 [2023-12-15 23:02:21,810 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 66 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:02:21,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 72 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-15 23:02:21,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-12-15 23:02:21,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-12-15 23:02:21,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 33 states have internal predecessors, (37), 10 states have call successors, (10), 7 states have call predecessors, (10), 10 states have return successors, (12), 11 states have call predecessors, (12), 8 states have call successors, (12) [2023-12-15 23:02:21,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2023-12-15 23:02:21,834 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 30 [2023-12-15 23:02:21,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:02:21,834 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2023-12-15 23:02:21,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 9 states have call successors, (10), 3 states have call predecessors, (10), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 23:02:21,834 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2023-12-15 23:02:21,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-15 23:02:21,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:02:21,836 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:02:21,858 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 23:02:22,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:02:22,043 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:02:22,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:02:22,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1929505267, now seen corresponding path program 4 times [2023-12-15 23:02:22,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:02:22,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245936407] [2023-12-15 23:02:22,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:02:22,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:02:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:23,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:02:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:24,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:02:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:24,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:02:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:25,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:02:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:25,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:02:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:25,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:02:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:26,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:02:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:26,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:02:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:26,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:02:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:02:26,586 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-15 23:02:26,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:02:26,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245936407] [2023-12-15 23:02:26,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245936407] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:02:26,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782151886] [2023-12-15 23:02:26,587 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-15 23:02:26,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:02:26,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:02:26,588 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 23:02:26,604 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 23:02:26,837 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-15 23:02:26,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 23:02:26,842 WARN L260 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 265 conjunts are in the unsatisfiable core [2023-12-15 23:02:26,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:02:26,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-12-15 23:02:26,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 23 Received shutdown request... [2023-12-15 23:03:11,730 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 23:03:11,730 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 23:03:12,041 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 23:03:12,048 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 23:03:12,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:03:12,242 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 56 with TraceHistMax 9,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 46 known predicates. [2023-12-15 23:03:12,246 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1] [2023-12-15 23:03:12,247 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 23:03:12,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:03:12 BoogieIcfgContainer [2023-12-15 23:03:12,249 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 23:03:12,249 INFO L158 Benchmark]: Toolchain (without parser) took 70206.97ms. Allocated memory was 267.4MB in the beginning and 607.1MB in the end (delta: 339.7MB). Free memory was 222.8MB in the beginning and 543.7MB in the end (delta: -320.9MB). Peak memory consumption was 20.3MB. Max. memory is 8.0GB. [2023-12-15 23:03:12,249 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 165.7MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:03:12,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.84ms. Allocated memory is still 267.4MB. Free memory was 222.8MB in the beginning and 211.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-15 23:03:12,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.46ms. Allocated memory is still 267.4MB. Free memory was 211.3MB in the beginning and 210.1MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-15 23:03:12,250 INFO L158 Benchmark]: Boogie Preprocessor took 42.68ms. Allocated memory is still 267.4MB. Free memory was 210.1MB in the beginning and 208.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 23:03:12,250 INFO L158 Benchmark]: RCFGBuilder took 266.73ms. Allocated memory is still 267.4MB. Free memory was 208.2MB in the beginning and 194.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-15 23:03:12,250 INFO L158 Benchmark]: TraceAbstraction took 69712.03ms. Allocated memory was 267.4MB in the beginning and 607.1MB in the end (delta: 339.7MB). Free memory was 193.9MB in the beginning and 543.7MB in the end (delta: -349.8MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:03:12,251 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 165.7MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 159.84ms. Allocated memory is still 267.4MB. Free memory was 222.8MB in the beginning and 211.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.46ms. Allocated memory is still 267.4MB. Free memory was 211.3MB in the beginning and 210.1MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.68ms. Allocated memory is still 267.4MB. Free memory was 210.1MB in the beginning and 208.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 266.73ms. Allocated memory is still 267.4MB. Free memory was 208.2MB in the beginning and 194.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 69712.03ms. Allocated memory was 267.4MB in the beginning and 607.1MB in the end (delta: 339.7MB). Free memory was 193.9MB in the beginning and 543.7MB in the end (delta: -349.8MB). There was no memory consumed. 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: 38]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 38). Cancelled while NwaCegarLoop was analyzing trace of length 56 with TraceHistMax 9,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 46 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.7s, OverallIterations: 5, TraceHistogramMax: 9, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 164 mSDsluCounter, 273 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 234 mSDsCounter, 173 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2344 IncrementalHoareTripleChecker+Invalid, 2517 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 173 mSolverCounterUnsat, 39 mSDtfsCounter, 2344 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 216 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1448 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=4, InterpolantAutomatonStates: 77, 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, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 177 ConstructedInterpolants, 9 QuantifiedInterpolants, 2823 SizeOfPredicates, 55 NumberOfNonLiveVariables, 528 ConjunctsInSsa, 309 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 19/92 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