/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/array-industry-pattern/array_of_struct_ptr_cond_init.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 17:03:16,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 17:03:16,782 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 17:03:16,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 17:03:16,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 17:03:16,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 17:03:16,813 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 17:03:16,813 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 17:03:16,814 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 17:03:16,817 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 17:03:16,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 17:03:16,817 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 17:03:16,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 17:03:16,818 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 17:03:16,819 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 17:03:16,819 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 17:03:16,819 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 17:03:16,819 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 17:03:16,819 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 17:03:16,820 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 17:03:16,820 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 17:03:16,820 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 17:03:16,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 17:03:16,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 17:03:16,821 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 17:03:16,821 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 17:03:16,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 17:03:16,821 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 17:03:16,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 17:03:16,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 17:03:16,822 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 17:03:16,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 17:03:16,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:03:16,823 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 17:03:16,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 17:03:16,823 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 17:03:16,823 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 17:03:16,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 17:03:16,823 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 17:03:16,823 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 17:03:16,823 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 17:03:16,824 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 17:03:16,824 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 17:03:16,824 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 17:03:17,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 17:03:17,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 17:03:17,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 17:03:17,032 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 17:03:17,032 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 17:03:17,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_cond_init.i [2023-12-15 17:03:17,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 17:03:18,126 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 17:03:18,127 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_cond_init.i [2023-12-15 17:03:18,132 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cbfdbfc5/0418400a2c0c480a9fb9fefb54be1b1b/FLAGfe7a61a31 [2023-12-15 17:03:18,146 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cbfdbfc5/0418400a2c0c480a9fb9fefb54be1b1b [2023-12-15 17:03:18,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 17:03:18,149 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 17:03:18,150 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 17:03:18,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 17:03:18,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 17:03:18,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:03:18" (1/1) ... [2023-12-15 17:03:18,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2afa89e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18, skipping insertion in model container [2023-12-15 17:03:18,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:03:18" (1/1) ... [2023-12-15 17:03:18,170 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 17:03:18,273 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_cond_init.i[999,1012] [2023-12-15 17:03:18,287 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:03:18,293 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 17:03:18,302 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_cond_init.i[999,1012] [2023-12-15 17:03:18,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:03:18,322 INFO L206 MainTranslator]: Completed translation [2023-12-15 17:03:18,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18 WrapperNode [2023-12-15 17:03:18,322 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 17:03:18,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 17:03:18,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 17:03:18,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 17:03:18,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18" (1/1) ... [2023-12-15 17:03:18,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18" (1/1) ... [2023-12-15 17:03:18,343 INFO L138 Inliner]: procedures = 20, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2023-12-15 17:03:18,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 17:03:18,344 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 17:03:18,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 17:03:18,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 17:03:18,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18" (1/1) ... [2023-12-15 17:03:18,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18" (1/1) ... [2023-12-15 17:03:18,352 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18" (1/1) ... [2023-12-15 17:03:18,363 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 3, 6]. 55 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, 2, 3]. [2023-12-15 17:03:18,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18" (1/1) ... [2023-12-15 17:03:18,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18" (1/1) ... [2023-12-15 17:03:18,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18" (1/1) ... [2023-12-15 17:03:18,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18" (1/1) ... [2023-12-15 17:03:18,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18" (1/1) ... [2023-12-15 17:03:18,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18" (1/1) ... [2023-12-15 17:03:18,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 17:03:18,376 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 17:03:18,376 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 17:03:18,376 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 17:03:18,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18" (1/1) ... [2023-12-15 17:03:18,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:03:18,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:03:18,443 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 17:03:18,451 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 17:03:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-15 17:03:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-15 17:03:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-15 17:03:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 17:03:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 17:03:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 17:03:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 17:03:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-15 17:03:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-15 17:03:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-15 17:03:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-15 17:03:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-15 17:03:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-15 17:03:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-15 17:03:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 17:03:18,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 17:03:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-15 17:03:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-15 17:03:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-15 17:03:18,544 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 17:03:18,545 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 17:03:18,691 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 17:03:18,729 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 17:03:18,730 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-15 17:03:18,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:03:18 BoogieIcfgContainer [2023-12-15 17:03:18,730 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 17:03:18,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 17:03:18,732 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 17:03:18,734 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 17:03:18,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 05:03:18" (1/3) ... [2023-12-15 17:03:18,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6483a9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:03:18, skipping insertion in model container [2023-12-15 17:03:18,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:03:18" (2/3) ... [2023-12-15 17:03:18,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6483a9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:03:18, skipping insertion in model container [2023-12-15 17:03:18,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:03:18" (3/3) ... [2023-12-15 17:03:18,735 INFO L112 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_cond_init.i [2023-12-15 17:03:18,751 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 17:03:18,751 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 17:03:18,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 17:03:18,793 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;@65b8c620, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 17:03:18,793 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 17:03:18,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 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 17:03:18,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-15 17:03:18,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:03:18,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:03:18,807 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:03:18,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:03:18,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1046469887, now seen corresponding path program 1 times [2023-12-15 17:03:18,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:03:18,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010783426] [2023-12-15 17:03:18,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:03:18,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:03:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:03:18,925 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 17:03:18,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:03:18,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010783426] [2023-12-15 17:03:18,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010783426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:03:18,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:03:18,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 17:03:18,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480561972] [2023-12-15 17:03:18,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:03:18,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 17:03:18,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:03:18,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 17:03:18,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 17:03:18,956 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 17:03:18,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:03:18,972 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions. [2023-12-15 17:03:18,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 17:03:18,974 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-12-15 17:03:18,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:03:18,979 INFO L225 Difference]: With dead ends: 24 [2023-12-15 17:03:18,979 INFO L226 Difference]: Without dead ends: 12 [2023-12-15 17:03:18,981 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 17:03:18,984 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:03:18,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:03:18,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-15 17:03:19,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-12-15 17:03:19,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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 17:03:19,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2023-12-15 17:03:19,024 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 7 [2023-12-15 17:03:19,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:03:19,025 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-12-15 17:03:19,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 17:03:19,025 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2023-12-15 17:03:19,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-15 17:03:19,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:03:19,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:03:19,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 17:03:19,026 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:03:19,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:03:19,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1475907152, now seen corresponding path program 1 times [2023-12-15 17:03:19,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:03:19,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379613128] [2023-12-15 17:03:19,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:03:19,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:03:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:03:19,072 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 17:03:19,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:03:19,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379613128] [2023-12-15 17:03:19,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379613128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:03:19,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:03:19,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 17:03:19,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647505223] [2023-12-15 17:03:19,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:03:19,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:03:19,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:03:19,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:03:19,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:03:19,075 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 17:03:19,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:03:19,093 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2023-12-15 17:03:19,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:03:19,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-12-15 17:03:19,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:03:19,095 INFO L225 Difference]: With dead ends: 30 [2023-12-15 17:03:19,095 INFO L226 Difference]: Without dead ends: 22 [2023-12-15 17:03:19,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 17:03:19,096 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 10 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:03:19,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 18 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:03:19,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-12-15 17:03:19,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 13. [2023-12-15 17:03:19,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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 17:03:19,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2023-12-15 17:03:19,099 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2023-12-15 17:03:19,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:03:19,099 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2023-12-15 17:03:19,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 17:03:19,100 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2023-12-15 17:03:19,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-15 17:03:19,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:03:19,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:03:19,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 17:03:19,100 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:03:19,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:03:19,101 INFO L85 PathProgramCache]: Analyzing trace with hash 627384837, now seen corresponding path program 1 times [2023-12-15 17:03:19,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:03:19,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579993349] [2023-12-15 17:03:19,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:03:19,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:03:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:03:19,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:03:19,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:03:19,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579993349] [2023-12-15 17:03:19,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579993349] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:03:19,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973430747] [2023-12-15 17:03:19,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:03:19,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:03:19,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:03:19,222 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 17:03:19,228 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 17:03:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:03:19,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 17:03:19,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:03:19,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:03:19,322 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 17:03:19,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:03:19,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973430747] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 17:03:19,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 17:03:19,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-12-15 17:03:19,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854014724] [2023-12-15 17:03:19,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 17:03:19,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:03:19,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:03:19,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:03:19,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:03:19,340 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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 17:03:19,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:03:19,375 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2023-12-15 17:03:19,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:03:19,376 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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 10 [2023-12-15 17:03:19,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:03:19,376 INFO L225 Difference]: With dead ends: 52 [2023-12-15 17:03:19,376 INFO L226 Difference]: Without dead ends: 44 [2023-12-15 17:03:19,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:03:19,377 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 60 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:03:19,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 42 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:03:19,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-12-15 17:03:19,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 22. [2023-12-15 17:03:19,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 21 states have internal predecessors, (28), 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 17:03:19,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2023-12-15 17:03:19,381 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 10 [2023-12-15 17:03:19,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:03:19,381 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2023-12-15 17:03:19,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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 17:03:19,381 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2023-12-15 17:03:19,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-15 17:03:19,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:03:19,382 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:03:19,390 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 17:03:19,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:03:19,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:03:19,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:03:19,592 INFO L85 PathProgramCache]: Analyzing trace with hash 289821040, now seen corresponding path program 2 times [2023-12-15 17:03:19,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:03:19,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662449255] [2023-12-15 17:03:19,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:03:19,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:03:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:03:19,772 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:03:19,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:03:19,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662449255] [2023-12-15 17:03:19,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662449255] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:03:19,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822656984] [2023-12-15 17:03:19,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-15 17:03:19,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:03:19,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:03:19,780 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 17:03:19,784 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 17:03:19,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-15 17:03:19,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 17:03:19,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 17:03:19,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:03:19,940 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:03:19,940 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 17:03:20,004 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:03:20,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822656984] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 17:03:20,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 17:03:20,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-12-15 17:03:20,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871288861] [2023-12-15 17:03:20,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 17:03:20,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 17:03:20,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:03:20,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 17:03:20,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-12-15 17:03:20,011 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 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 17:03:20,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:03:20,114 INFO L93 Difference]: Finished difference Result 112 states and 140 transitions. [2023-12-15 17:03:20,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 17:03:20,114 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 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 19 [2023-12-15 17:03:20,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:03:20,117 INFO L225 Difference]: With dead ends: 112 [2023-12-15 17:03:20,117 INFO L226 Difference]: Without dead ends: 104 [2023-12-15 17:03:20,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-12-15 17:03:20,121 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 196 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:03:20,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 90 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:03:20,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-15 17:03:20,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 40. [2023-12-15 17:03:20,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 39 states have internal predecessors, (52), 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 17:03:20,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2023-12-15 17:03:20,129 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 52 transitions. Word has length 19 [2023-12-15 17:03:20,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:03:20,129 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 52 transitions. [2023-12-15 17:03:20,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 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 17:03:20,129 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2023-12-15 17:03:20,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-15 17:03:20,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:03:20,130 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:03:20,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-15 17:03:20,336 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,SelfDestructingSolverStorable3 [2023-12-15 17:03:20,337 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:03:20,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:03:20,337 INFO L85 PathProgramCache]: Analyzing trace with hash -590965488, now seen corresponding path program 3 times [2023-12-15 17:03:20,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:03:20,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43880983] [2023-12-15 17:03:20,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:03:20,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:03:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:03:20,703 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:03:20,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:03:20,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43880983] [2023-12-15 17:03:20,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43880983] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:03:20,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797062616] [2023-12-15 17:03:20,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-15 17:03:20,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:03:20,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:03:20,704 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 17:03:20,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process Received shutdown request... [2023-12-15 17:04:40,681 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 17:04:40,681 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 17:04:41,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-15 17:04:41,882 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2023-12-15 17:04:41,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 17:04:41,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:04:41,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-12-15 17:04:41,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108602410] [2023-12-15 17:04:41,890 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-15 17:04:41,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 17:04:41,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:04:41,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 17:04:41,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-12-15 17:04:41,891 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 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 17:04:41,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 137 [2023-12-15 17:04:41,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 17:04:41,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-12-15 17:04:41,893 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:04:41,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:04:41,894 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 17:04:41,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 17:04:41,895 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (40states) and FLOYD_HOARE automaton (currently 2 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). [2023-12-15 17:04:41,898 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2023-12-15 17:04:41,900 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 17:04:41,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 05:04:41 BoogieIcfgContainer [2023-12-15 17:04:41,901 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 17:04:41,902 INFO L158 Benchmark]: Toolchain (without parser) took 83752.89ms. Allocated memory was 215.0MB in the beginning and 295.7MB in the end (delta: 80.7MB). Free memory was 173.9MB in the beginning and 138.6MB in the end (delta: 35.3MB). Peak memory consumption was 117.8MB. Max. memory is 8.0GB. [2023-12-15 17:04:41,902 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 215.0MB. Free memory is still 161.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 17:04:41,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.92ms. Allocated memory is still 215.0MB. Free memory was 173.6MB in the beginning and 162.4MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-15 17:04:41,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.28ms. Allocated memory is still 215.0MB. Free memory was 162.4MB in the beginning and 161.0MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-15 17:04:41,902 INFO L158 Benchmark]: Boogie Preprocessor took 27.87ms. Allocated memory is still 215.0MB. Free memory was 161.0MB in the beginning and 158.5MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 17:04:41,902 INFO L158 Benchmark]: RCFGBuilder took 354.35ms. Allocated memory is still 215.0MB. Free memory was 158.5MB in the beginning and 144.6MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-15 17:04:41,903 INFO L158 Benchmark]: TraceAbstraction took 83169.95ms. Allocated memory was 215.0MB in the beginning and 295.7MB in the end (delta: 80.7MB). Free memory was 143.9MB in the beginning and 138.6MB in the end (delta: 5.2MB). Peak memory consumption was 87.4MB. Max. memory is 8.0GB. [2023-12-15 17:04:41,904 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 215.0MB. Free memory is still 161.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 172.92ms. Allocated memory is still 215.0MB. Free memory was 173.6MB in the beginning and 162.4MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.28ms. Allocated memory is still 215.0MB. Free memory was 162.4MB in the beginning and 161.0MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.87ms. Allocated memory is still 215.0MB. Free memory was 161.0MB in the beginning and 158.5MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 354.35ms. Allocated memory is still 215.0MB. Free memory was 158.5MB in the beginning and 144.6MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 83169.95ms. Allocated memory was 215.0MB in the beginning and 295.7MB in the end (delta: 80.7MB). Free memory was 143.9MB in the beginning and 138.6MB in the end (delta: 5.2MB). Peak memory consumption was 87.4MB. 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: 16]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 16). Cancelled while NwaCegarLoop was constructing difference of abstraction (40states) and FLOYD_HOARE automaton (currently 2 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 83.1s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 266 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 266 mSDsluCounter, 163 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 120 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 43 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=4, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 95 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 295 SizeOfPredicates, 0 NumberOfNonLiveVariables, 388 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 0/214 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