/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/float-benchs/exp_loop.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 16:41:53,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 16:41:53,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 16:41:53,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 16:41:53,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 16:41:53,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 16:41:53,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 16:41:53,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 16:41:53,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 16:41:53,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 16:41:53,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 16:41:53,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 16:41:53,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 16:41:53,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 16:41:53,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 16:41:53,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 16:41:53,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 16:41:53,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 16:41:53,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 16:41:53,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 16:41:53,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 16:41:53,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 16:41:53,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 16:41:53,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 16:41:53,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 16:41:53,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 16:41:53,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 16:41:53,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 16:41:53,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 16:41:53,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 16:41:53,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 16:41:53,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 16:41:53,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 16:41:53,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 16:41:53,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 16:41:53,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 16:41:53,547 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 16:41:53,601 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 16:41:53,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 16:41:53,602 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 16:41:53,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 16:41:53,605 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 16:41:53,605 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 16:41:53,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 16:41:53,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 16:41:53,608 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 16:41:53,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 16:41:53,609 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 16:41:53,610 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 16:41:53,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 16:41:53,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 16:41:53,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 16:41:53,610 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 16:41:53,611 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 16:41:53,611 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 16:41:53,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 16:41:53,611 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 16:41:53,611 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 16:41:53,612 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 16:41:53,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 16:41:53,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 16:41:53,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 16:41:53,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:41:53,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 16:41:53,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 16:41:53,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 16:41:53,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 16:41:53,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 16:41:54,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 16:41:54,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 16:41:54,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 16:41:54,046 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 16:41:54,046 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 16:41:54,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/exp_loop.c [2022-10-15 16:41:54,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6a1cacd2/3418c28b92fe4848a6053b128e0b4055/FLAG289e444e6 [2022-10-15 16:41:54,680 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 16:41:54,681 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/exp_loop.c [2022-10-15 16:41:54,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6a1cacd2/3418c28b92fe4848a6053b128e0b4055/FLAG289e444e6 [2022-10-15 16:41:55,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6a1cacd2/3418c28b92fe4848a6053b128e0b4055 [2022-10-15 16:41:55,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 16:41:55,076 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 16:41:55,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 16:41:55,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 16:41:55,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 16:41:55,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:41:55" (1/1) ... [2022-10-15 16:41:55,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b0c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:55, skipping insertion in model container [2022-10-15 16:41:55,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:41:55" (1/1) ... [2022-10-15 16:41:55,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 16:41:55,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 16:41:55,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/exp_loop.c[587,600] [2022-10-15 16:41:55,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:41:55,398 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 16:41:55,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/exp_loop.c[587,600] [2022-10-15 16:41:55,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:41:55,442 INFO L208 MainTranslator]: Completed translation [2022-10-15 16:41:55,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:55 WrapperNode [2022-10-15 16:41:55,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 16:41:55,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 16:41:55,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 16:41:55,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 16:41:55,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:55" (1/1) ... [2022-10-15 16:41:55,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:55" (1/1) ... [2022-10-15 16:41:55,489 INFO L138 Inliner]: procedures = 18, calls = 17, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 101 [2022-10-15 16:41:55,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 16:41:55,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 16:41:55,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 16:41:55,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 16:41:55,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:55" (1/1) ... [2022-10-15 16:41:55,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:55" (1/1) ... [2022-10-15 16:41:55,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:55" (1/1) ... [2022-10-15 16:41:55,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:55" (1/1) ... [2022-10-15 16:41:55,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:55" (1/1) ... [2022-10-15 16:41:55,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:55" (1/1) ... [2022-10-15 16:41:55,518 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:55" (1/1) ... [2022-10-15 16:41:55,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:55" (1/1) ... [2022-10-15 16:41:55,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 16:41:55,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 16:41:55,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 16:41:55,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 16:41:55,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:55" (1/1) ... [2022-10-15 16:41:55,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:41:55,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:41:55,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 16:41:55,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 16:41:55,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 16:41:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 16:41:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 16:41:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 16:41:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 16:41:55,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 16:41:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 16:41:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 16:41:55,722 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 16:41:55,724 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 16:41:55,942 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 16:41:55,963 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 16:41:55,964 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-15 16:41:55,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:41:55 BoogieIcfgContainer [2022-10-15 16:41:55,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 16:41:55,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 16:41:55,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 16:41:56,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 16:41:56,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:41:55" (1/3) ... [2022-10-15 16:41:56,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2d59c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:41:56, skipping insertion in model container [2022-10-15 16:41:56,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:55" (2/3) ... [2022-10-15 16:41:56,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2d59c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:41:56, skipping insertion in model container [2022-10-15 16:41:56,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:41:55" (3/3) ... [2022-10-15 16:41:56,024 INFO L112 eAbstractionObserver]: Analyzing ICFG exp_loop.c [2022-10-15 16:41:56,053 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 16:41:56,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-15 16:41:56,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 16:41:56,122 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@70f9470b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 16:41:56,123 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-15 16:41:56,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 25 states have (on average 1.76) internal successors, (44), 31 states have internal predecessors, (44), 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) [2022-10-15 16:41:56,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 16:41:56,136 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:41:56,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:41:56,145 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-10-15 16:41:56,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:41:56,158 INFO L85 PathProgramCache]: Analyzing trace with hash -594068641, now seen corresponding path program 1 times [2022-10-15 16:41:56,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:41:56,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194801408] [2022-10-15 16:41:56,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:41:56,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:41:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:41:56,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:56,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:41:56,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194801408] [2022-10-15 16:41:56,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194801408] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:41:56,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:41:56,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:41:56,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633384025] [2022-10-15 16:41:56,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:41:56,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 16:41:56,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:41:56,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 16:41:56,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 16:41:56,412 INFO L87 Difference]: Start difference. First operand has 32 states, 25 states have (on average 1.76) internal successors, (44), 31 states have internal predecessors, (44), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-10-15 16:41:56,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:41:56,429 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2022-10-15 16:41:56,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 16:41:56,432 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-10-15 16:41:56,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:41:56,442 INFO L225 Difference]: With dead ends: 32 [2022-10-15 16:41:56,442 INFO L226 Difference]: Without dead ends: 30 [2022-10-15 16:41:56,444 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 [2022-10-15 16:41:56,450 INFO L413 NwaCegarLoop]: 38 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, 38 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 [2022-10-15 16:41:56,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:41:56,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-10-15 16:41:56,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-10-15 16:41:56,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.5) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:56,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2022-10-15 16:41:56,499 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 9 [2022-10-15 16:41:56,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:41:56,500 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-10-15 16:41:56,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-10-15 16:41:56,501 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-10-15 16:41:56,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 16:41:56,502 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:41:56,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:41:56,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 16:41:56,503 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-10-15 16:41:56,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:41:56,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1180938721, now seen corresponding path program 1 times [2022-10-15 16:41:56,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:41:56,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718210140] [2022-10-15 16:41:56,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:41:56,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:41:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:41:56,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:56,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:41:56,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718210140] [2022-10-15 16:41:56,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718210140] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:41:56,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:41:56,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:41:56,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670690562] [2022-10-15 16:41:56,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:41:56,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 16:41:56,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:41:56,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 16:41:56,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 16:41:56,770 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-10-15 16:41:56,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:41:56,821 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2022-10-15 16:41:56,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 16:41:56,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-10-15 16:41:56,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:41:56,823 INFO L225 Difference]: With dead ends: 28 [2022-10-15 16:41:56,823 INFO L226 Difference]: Without dead ends: 28 [2022-10-15 16:41:56,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:41:56,825 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 53 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:41:56,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 29 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:41:56,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-10-15 16:41:56,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-10-15 16:41:56,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 27 states have internal predecessors, (34), 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) [2022-10-15 16:41:56,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-10-15 16:41:56,832 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 9 [2022-10-15 16:41:56,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:41:56,833 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-10-15 16:41:56,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-10-15 16:41:56,833 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-10-15 16:41:56,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 16:41:56,834 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:41:56,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:41:56,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 16:41:56,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-10-15 16:41:56,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:41:56,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1180938722, now seen corresponding path program 1 times [2022-10-15 16:41:56,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:41:56,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316897923] [2022-10-15 16:41:56,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:41:56,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:41:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:41:57,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:57,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:41:57,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316897923] [2022-10-15 16:41:57,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316897923] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:41:57,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:41:57,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:41:57,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700368323] [2022-10-15 16:41:57,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:41:57,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 16:41:57,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:41:57,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 16:41:57,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 16:41:57,144 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-10-15 16:41:57,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:41:57,210 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2022-10-15 16:41:57,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 16:41:57,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-10-15 16:41:57,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:41:57,213 INFO L225 Difference]: With dead ends: 26 [2022-10-15 16:41:57,213 INFO L226 Difference]: Without dead ends: 26 [2022-10-15 16:41:57,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:41:57,216 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 50 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:41:57,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 30 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:41:57,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-15 16:41:57,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-10-15 16:41:57,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 25 states have internal predecessors, (32), 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) [2022-10-15 16:41:57,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-10-15 16:41:57,225 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9 [2022-10-15 16:41:57,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:41:57,226 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-10-15 16:41:57,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-10-15 16:41:57,226 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-10-15 16:41:57,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 16:41:57,227 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:41:57,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:41:57,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 16:41:57,228 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-10-15 16:41:57,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:41:57,229 INFO L85 PathProgramCache]: Analyzing trace with hash -557122960, now seen corresponding path program 1 times [2022-10-15 16:41:57,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:41:57,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579764948] [2022-10-15 16:41:57,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:41:57,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:41:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:41:57,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:57,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:41:57,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579764948] [2022-10-15 16:41:57,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579764948] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:41:57,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:41:57,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:41:57,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472707973] [2022-10-15 16:41:57,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:41:57,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:41:57,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:41:57,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:41:57,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:41:57,293 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2022-10-15 16:41:57,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:41:57,307 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2022-10-15 16:41:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:41:57,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 19 [2022-10-15 16:41:57,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:41:57,309 INFO L225 Difference]: With dead ends: 27 [2022-10-15 16:41:57,309 INFO L226 Difference]: Without dead ends: 27 [2022-10-15 16:41:57,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:41:57,312 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 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 [2022-10-15 16:41:57,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:41:57,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-15 16:41:57,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-10-15 16:41:57,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 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) [2022-10-15 16:41:57,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2022-10-15 16:41:57,321 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 19 [2022-10-15 16:41:57,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:41:57,322 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-10-15 16:41:57,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2022-10-15 16:41:57,323 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-10-15 16:41:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 16:41:57,326 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:41:57,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:41:57,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 16:41:57,327 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-10-15 16:41:57,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:41:57,328 INFO L85 PathProgramCache]: Analyzing trace with hash -970860368, now seen corresponding path program 1 times [2022-10-15 16:41:57,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:41:57,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237911424] [2022-10-15 16:41:57,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:41:57,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:41:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:41:57,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 16:41:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:41:57,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 16:41:57,478 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 16:41:57,480 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2022-10-15 16:41:57,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-10-15 16:41:57,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-10-15 16:41:57,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 6 remaining) [2022-10-15 16:41:57,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 6 remaining) [2022-10-15 16:41:57,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2022-10-15 16:41:57,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 16:41:57,489 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-10-15 16:41:57,494 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 16:41:57,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:41:57 BoogieIcfgContainer [2022-10-15 16:41:57,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 16:41:57,535 INFO L158 Benchmark]: Toolchain (without parser) took 2463.35ms. Allocated memory is still 156.2MB. Free memory was 129.0MB in the beginning and 77.6MB in the end (delta: 51.4MB). Peak memory consumption was 51.8MB. Max. memory is 8.0GB. [2022-10-15 16:41:57,535 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 156.2MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:41:57,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.32ms. Allocated memory is still 156.2MB. Free memory was 128.8MB in the beginning and 118.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-15 16:41:57,537 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.65ms. Allocated memory is still 156.2MB. Free memory was 118.4MB in the beginning and 116.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 16:41:57,538 INFO L158 Benchmark]: Boogie Preprocessor took 32.29ms. Allocated memory is still 156.2MB. Free memory was 116.6MB in the beginning and 115.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 16:41:57,538 INFO L158 Benchmark]: RCFGBuilder took 451.37ms. Allocated memory is still 156.2MB. Free memory was 115.2MB in the beginning and 102.8MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-15 16:41:57,539 INFO L158 Benchmark]: TraceAbstraction took 1548.82ms. Allocated memory is still 156.2MB. Free memory was 102.1MB in the beginning and 77.6MB in the end (delta: 24.5MB). Peak memory consumption was 25.5MB. Max. memory is 8.0GB. [2022-10-15 16:41:57,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 156.2MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 362.32ms. Allocated memory is still 156.2MB. Free memory was 128.8MB in the beginning and 118.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.65ms. Allocated memory is still 156.2MB. Free memory was 118.4MB in the beginning and 116.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.29ms. Allocated memory is still 156.2MB. Free memory was 116.6MB in the beginning and 115.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 451.37ms. Allocated memory is still 156.2MB. Free memory was 115.2MB in the beginning and 102.8MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1548.82ms. Allocated memory is still 156.2MB. Free memory was 102.1MB in the beginning and 77.6MB in the end (delta: 24.5MB). Peak memory consumption was 25.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 14]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of memtrack at line 14, overapproximation of someBinaryDOUBLEComparisonOperation at line 80, overapproximation of someBinaryArithmeticFLOAToperation at line 66. Possible FailurePath: [L71] float a, b, c; [L72] int e; [L74] a = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not(a >= 1e-10 && a <= 1e10) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L75] RET assume_abort_if_not(a >= 1e-10 && a <= 1e10) [L77] CALL, EXPR FREXP(a, &e) [L25] int x; [L26] float r; [L27] CALL, EXPR FABS(d) [L19] COND TRUE d >= 0.f [L19] return d; VAL [\old(d)=58, \result=58, d=58] [L27] RET, EXPR FABS(d) [L27] float dd = FABS(d); [L29] COND TRUE dd >= 1.f [L30] x = 1 [L31] r = 2.f VAL [\old(d)=58, d=58, dd=58, e={5:0}, e={5:0}, r=2, x=1] [L32] COND FALSE !(r <= dd) VAL [\old(d)=58, d=58, dd=58, e={5:0}, e={5:0}, r=2, x=1] [L46] *e = x VAL [\old(d)=58, d=58, dd=58, e={5:0}, e={5:0}, r=2, x=1] [L47] return dd / r; VAL [\old(d)=58, d=58, dd=58, e={5:0}, e={5:0}, r=2, x=1] [L77] RET, EXPR FREXP(a, &e) [L77] b = FREXP(a, &e) [L78] EXPR \read(e) VAL [\read(e)=1, a=58, b=56, e={5:0}] [L78] CALL, EXPR LDEXP(b, e/2) [L52] float x = 1.; VAL [\old(d)=56, \old(e)=0, d=56, e=0, x=1] [L54] COND TRUE e >= 0 VAL [\old(d)=56, \old(e)=0, d=56, e=0, x=1] [L55] COND FALSE !(e > 0) VAL [\old(d)=56, \old(e)=0, d=56, e=0, x=1] [L66] return d * x; VAL [\old(d)=56, \old(e)=0, d=56, e=0, x=1] [L78] RET, EXPR LDEXP(b, e/2) [L78] c = LDEXP(b, e/2) [L80] CALL __VERIFIER_assert(c >= 0.f && c <= 1e6) [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L14] reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 153 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 125 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 0.6s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-10-15 16:41:57,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...