/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 22:47:44,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 22:47:44,118 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-02 22:47:44,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 22:47:44,123 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 22:47:44,147 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 22:47:44,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 22:47:44,148 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 22:47:44,148 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 22:47:44,152 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 22:47:44,152 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 22:47:44,153 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 22:47:44,153 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 22:47:44,154 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 22:47:44,154 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 22:47:44,155 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 22:47:44,155 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 22:47:44,155 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 22:47:44,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 22:47:44,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 22:47:44,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 22:47:44,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 22:47:44,159 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 22:47:44,160 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 22:47:44,160 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 22:47:44,160 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 22:47:44,160 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 22:47:44,160 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 22:47:44,160 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 22:47:44,160 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 22:47:44,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 22:47:44,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 22:47:44,161 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 22:47:44,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 22:47:44,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 22:47:44,161 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 22:47:44,161 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 22:47:44,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 22:47:44,162 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 22:47:44,162 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 22:47:44,162 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 22:47:44,162 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 22:47:44,162 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 22:47:44,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 22:47:44,163 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:47:44,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 22:47:44,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 22:47:44,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 22:47:44,364 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 22:47:44,365 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 22:47:44,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float2.c [2024-11-02 22:47:45,663 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 22:47:45,829 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 22:47:45,829 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float2.c [2024-11-02 22:47:45,835 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a596a3161/38a7346121654f059d9b3e7789a9dcbc/FLAGe34626366 [2024-11-02 22:47:45,852 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a596a3161/38a7346121654f059d9b3e7789a9dcbc [2024-11-02 22:47:45,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 22:47:45,857 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 22:47:45,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 22:47:45,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 22:47:45,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 22:47:45,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:47:45" (1/1) ... [2024-11-02 22:47:45,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@140d6f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:45, skipping insertion in model container [2024-11-02 22:47:45,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:47:45" (1/1) ... [2024-11-02 22:47:45,882 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 22:47:46,042 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float2.c[366,379] [2024-11-02 22:47:46,045 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float2.c[420,433] [2024-11-02 22:47:46,047 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float2.c[493,506] [2024-11-02 22:47:46,048 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float2.c[557,570] [2024-11-02 22:47:46,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 22:47:46,063 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 22:47:46,073 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float2.c[366,379] [2024-11-02 22:47:46,074 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float2.c[420,433] [2024-11-02 22:47:46,075 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float2.c[493,506] [2024-11-02 22:47:46,076 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float2.c[557,570] [2024-11-02 22:47:46,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 22:47:46,091 INFO L204 MainTranslator]: Completed translation [2024-11-02 22:47:46,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46 WrapperNode [2024-11-02 22:47:46,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 22:47:46,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 22:47:46,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 22:47:46,094 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 22:47:46,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2024-11-02 22:47:46,105 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2024-11-02 22:47:46,117 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2024-11-02 22:47:46,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 22:47:46,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 22:47:46,118 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 22:47:46,118 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 22:47:46,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2024-11-02 22:47:46,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2024-11-02 22:47:46,127 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2024-11-02 22:47:46,138 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-02 22:47:46,138 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2024-11-02 22:47:46,138 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2024-11-02 22:47:46,142 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2024-11-02 22:47:46,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2024-11-02 22:47:46,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2024-11-02 22:47:46,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2024-11-02 22:47:46,150 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 22:47:46,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 22:47:46,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 22:47:46,151 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 22:47:46,152 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2024-11-02 22:47:46,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 22:47:46,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:47:46,177 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) [2024-11-02 22:47:46,184 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 [2024-11-02 22:47:46,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 22:47:46,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 22:47:46,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 22:47:46,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 22:47:46,250 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 22:47:46,252 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 22:47:46,461 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-02 22:47:46,461 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 22:47:46,469 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 22:47:46,470 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 22:47:46,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:47:46 BoogieIcfgContainer [2024-11-02 22:47:46,470 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 22:47:46,472 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 22:47:46,473 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 22:47:46,475 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 22:47:46,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:47:45" (1/3) ... [2024-11-02 22:47:46,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23432f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:47:46, skipping insertion in model container [2024-11-02 22:47:46,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (2/3) ... [2024-11-02 22:47:46,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23432f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:47:46, skipping insertion in model container [2024-11-02 22:47:46,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:47:46" (3/3) ... [2024-11-02 22:47:46,477 INFO L112 eAbstractionObserver]: Analyzing ICFG float2.c [2024-11-02 22:47:46,490 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 22:47:46,491 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-02 22:47:46,527 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 22:47:46,532 INFO L333 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, 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;@419b772d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 22:47:46,532 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-02 22:47:46,535 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 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) [2024-11-02 22:47:46,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 22:47:46,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:47:46,539 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 22:47:46,539 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-02 22:47:46,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:47:46,543 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2024-11-02 22:47:46,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:47:46,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44251575] [2024-11-02 22:47:46,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:47:46,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:47:46,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:47:46,556 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) [2024-11-02 22:47:46,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 22:47:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:47:46,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 22:47:46,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:47:46,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 22:47:46,688 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:47:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 22:47:46,989 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:47:46,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44251575] [2024-11-02 22:47:46,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [44251575] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:47:46,989 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:47:46,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2024-11-02 22:47:46,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742591294] [2024-11-02 22:47:46,991 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:47:46,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 22:47:46,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:47:47,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 22:47:47,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 22:47:47,013 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 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 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2024-11-02 22:47:47,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:47:47,482 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2024-11-02 22:47:47,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 22:47:47,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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 4 [2024-11-02 22:47:47,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:47:47,503 INFO L225 Difference]: With dead ends: 35 [2024-11-02 22:47:47,503 INFO L226 Difference]: Without dead ends: 15 [2024-11-02 22:47:47,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 22:47:47,512 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 15 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-02 22:47:47,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 14 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-02 22:47:47,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-02 22:47:47,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-02 22:47:47,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 14 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:47:47,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2024-11-02 22:47:47,537 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 4 [2024-11-02 22:47:47,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:47:47,537 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2024-11-02 22:47:47,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2024-11-02 22:47:47,537 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2024-11-02 22:47:47,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-02 22:47:47,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:47:47,538 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-02 22:47:47,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 22:47:47,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:47:47,739 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-02 22:47:47,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:47:47,739 INFO L85 PathProgramCache]: Analyzing trace with hash 889629862, now seen corresponding path program 1 times [2024-11-02 22:47:47,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:47:47,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811785582] [2024-11-02 22:47:47,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:47:47,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:47:47,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:47:47,741 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) [2024-11-02 22:47:47,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 22:47:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:47:47,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:47:47,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:47:47,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 22:47:47,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:47:47,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 22:47:47,811 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:47:47,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811785582] [2024-11-02 22:47:47,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1811785582] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:47:47,812 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:47:47,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 22:47:47,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918993515] [2024-11-02 22:47:47,812 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:47:47,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 22:47:47,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:47:47,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 22:47:47,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:47:47,813 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-02 22:47:47,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:47:47,870 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2024-11-02 22:47:47,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 22:47:47,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-11-02 22:47:47,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:47:47,871 INFO L225 Difference]: With dead ends: 15 [2024-11-02 22:47:47,871 INFO L226 Difference]: Without dead ends: 13 [2024-11-02 22:47:47,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:47:47,872 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 22:47:47,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 22:47:47,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-02 22:47:47,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-02 22:47:47,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 12 states have internal predecessors, (12), 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) [2024-11-02 22:47:47,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2024-11-02 22:47:47,875 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 6 [2024-11-02 22:47:47,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:47:47,875 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2024-11-02 22:47:47,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-02 22:47:47,875 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2024-11-02 22:47:47,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-02 22:47:47,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:47:47,875 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 22:47:47,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 22:47:48,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:47:48,080 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-02 22:47:48,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:47:48,080 INFO L85 PathProgramCache]: Analyzing trace with hash 235930184, now seen corresponding path program 1 times [2024-11-02 22:47:48,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:47:48,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2006497007] [2024-11-02 22:47:48,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:47:48,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:47:48,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:47:48,083 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) [2024-11-02 22:47:48,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 22:47:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:47:48,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:47:48,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:47:48,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 22:47:48,148 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:47:48,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 22:47:48,155 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:47:48,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2006497007] [2024-11-02 22:47:48,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2006497007] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:47:48,156 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:47:48,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 22:47:48,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702724288] [2024-11-02 22:47:48,156 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:47:48,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 22:47:48,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:47:48,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 22:47:48,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:47:48,157 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-02 22:47:48,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:47:48,193 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2024-11-02 22:47:48,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 22:47:48,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-11-02 22:47:48,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:47:48,194 INFO L225 Difference]: With dead ends: 13 [2024-11-02 22:47:48,194 INFO L226 Difference]: Without dead ends: 11 [2024-11-02 22:47:48,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:47:48,195 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 22:47:48,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 22:47:48,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-02 22:47:48,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-02 22:47:48,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 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) [2024-11-02 22:47:48,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2024-11-02 22:47:48,197 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 8 [2024-11-02 22:47:48,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:47:48,197 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2024-11-02 22:47:48,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-02 22:47:48,197 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2024-11-02 22:47:48,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-02 22:47:48,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:47:48,198 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 22:47:48,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-02 22:47:48,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:47:48,398 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-02 22:47:48,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:47:48,399 INFO L85 PathProgramCache]: Analyzing trace with hash -904234870, now seen corresponding path program 1 times [2024-11-02 22:47:48,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:47:48,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500796457] [2024-11-02 22:47:48,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:47:48,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:47:48,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:47:48,401 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) [2024-11-02 22:47:48,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 22:47:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:47:48,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:47:48,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:47:48,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 22:47:48,461 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:47:48,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 22:47:48,470 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:47:48,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500796457] [2024-11-02 22:47:48,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [500796457] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:47:48,472 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:47:48,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 22:47:48,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233282235] [2024-11-02 22:47:48,474 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:47:48,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 22:47:48,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:47:48,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 22:47:48,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:47:48,476 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-02 22:47:48,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:47:48,524 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2024-11-02 22:47:48,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 22:47:48,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 [2024-11-02 22:47:48,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:47:48,524 INFO L225 Difference]: With dead ends: 11 [2024-11-02 22:47:48,524 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 22:47:48,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:47:48,525 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 22:47:48,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 22:47:48,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 22:47:48,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 22:47:48,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-02 22:47:48,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 22:47:48,527 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2024-11-02 22:47:48,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:47:48,527 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 22:47:48,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-02 22:47:48,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 22:47:48,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 22:47:48,529 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-02 22:47:48,530 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-11-02 22:47:48,530 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-11-02 22:47:48,530 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-11-02 22:47:48,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-02 22:47:48,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:47:48,733 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-02 22:47:48,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 22:47:48,738 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 22:47:48,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 10:47:48 BoogieIcfgContainer [2024-11-02 22:47:48,742 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 22:47:48,743 INFO L158 Benchmark]: Toolchain (without parser) took 2887.50ms. Allocated memory is still 277.9MB. Free memory was 225.9MB in the beginning and 221.2MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2024-11-02 22:47:48,743 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory was 125.0MB in the beginning and 124.9MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 22:47:48,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.16ms. Allocated memory is still 277.9MB. Free memory was 225.9MB in the beginning and 212.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-02 22:47:48,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.73ms. Allocated memory is still 277.9MB. Free memory was 212.8MB in the beginning and 211.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 22:47:48,743 INFO L158 Benchmark]: Boogie Preprocessor took 32.23ms. Allocated memory is still 277.9MB. Free memory was 211.3MB in the beginning and 209.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-11-02 22:47:48,744 INFO L158 Benchmark]: RCFGBuilder took 319.97ms. Allocated memory is still 277.9MB. Free memory was 209.7MB in the beginning and 200.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2024-11-02 22:47:48,744 INFO L158 Benchmark]: TraceAbstraction took 2269.97ms. Allocated memory is still 277.9MB. Free memory was 199.2MB in the beginning and 221.2MB in the end (delta: -22.0MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 22:47:48,745 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory was 125.0MB in the beginning and 124.9MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 235.16ms. Allocated memory is still 277.9MB. Free memory was 225.9MB in the beginning and 212.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.73ms. Allocated memory is still 277.9MB. Free memory was 212.8MB in the beginning and 211.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.23ms. Allocated memory is still 277.9MB. Free memory was 211.3MB in the beginning and 209.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 319.97ms. Allocated memory is still 277.9MB. Free memory was 209.7MB in the beginning and 200.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 2269.97ms. Allocated memory is still 277.9MB. Free memory was 199.2MB in the beginning and 221.2MB in the end (delta: -22.0MB). 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 - PositiveResult [Line: 12]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 15]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 23]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 34 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 98 SizeOfPredicates, 4 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-02 22:47:48,769 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 Received shutdown request...