/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/termination-crafted-lit/cstrncmp.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:55:15,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:55:15,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:55:15,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:55:15,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:55:15,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:55:15,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:55:15,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:55:15,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:55:15,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:55:15,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:55:15,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:55:15,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:55:15,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:55:15,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:55:15,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:55:15,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:55:15,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:55:15,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:55:15,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:55:15,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:55:15,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:55:15,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:55:15,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:55:15,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:55:15,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:55:15,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:55:15,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:55:15,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:55:15,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:55:15,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:55:15,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:55:15,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:55:15,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:55:15,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:55:15,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:55:15,191 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 17:55:15,219 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:55:15,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:55:15,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:55:15,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:55:15,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:55:15,221 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:55:15,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:55:15,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:55:15,222 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:55:15,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:55:15,223 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:55:15,223 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:55:15,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:55:15,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:55:15,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:55:15,224 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:55:15,224 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:55:15,224 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:55:15,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:55:15,225 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:55:15,225 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:55:15,225 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:55:15,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:55:15,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:55:15,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:55:15,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:55:15,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:55:15,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:55:15,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:55:15,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:55:15,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:55:15,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:55:15,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:55:15,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:55:15,648 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:55:15,649 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:55:15,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/cstrncmp.c [2022-10-15 17:55:15,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bed1edbd/40a3fadc1f47439ab2ec6bcf236df9c6/FLAG4f9fd9ac5 [2022-10-15 17:55:16,397 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:55:16,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/cstrncmp.c [2022-10-15 17:55:16,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bed1edbd/40a3fadc1f47439ab2ec6bcf236df9c6/FLAG4f9fd9ac5 [2022-10-15 17:55:16,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bed1edbd/40a3fadc1f47439ab2ec6bcf236df9c6 [2022-10-15 17:55:16,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:55:16,757 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:55:16,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:55:16,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:55:16,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:55:16,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:55:16" (1/1) ... [2022-10-15 17:55:16,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fdee1e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:55:16, skipping insertion in model container [2022-10-15 17:55:16,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:55:16" (1/1) ... [2022-10-15 17:55:16,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:55:16,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:55:17,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:55:17,121 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:55:17,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:55:17,192 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:55:17,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:55:17 WrapperNode [2022-10-15 17:55:17,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:55:17,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:55:17,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:55:17,196 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:55:17,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:55:17" (1/1) ... [2022-10-15 17:55:17,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:55:17" (1/1) ... [2022-10-15 17:55:17,260 INFO L138 Inliner]: procedures = 11, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2022-10-15 17:55:17,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:55:17,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:55:17,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:55:17,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:55:17,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:55:17" (1/1) ... [2022-10-15 17:55:17,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:55:17" (1/1) ... [2022-10-15 17:55:17,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:55:17" (1/1) ... [2022-10-15 17:55:17,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:55:17" (1/1) ... [2022-10-15 17:55:17,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:55:17" (1/1) ... [2022-10-15 17:55:17,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:55:17" (1/1) ... [2022-10-15 17:55:17,310 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:55:17" (1/1) ... [2022-10-15 17:55:17,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:55:17" (1/1) ... [2022-10-15 17:55:17,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:55:17,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:55:17,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:55:17,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:55:17,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:55:17" (1/1) ... [2022-10-15 17:55:17,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:55:17,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:55:17,365 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 17:55:17,385 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 17:55:17,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 17:55:17,432 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2022-10-15 17:55:17,432 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2022-10-15 17:55:17,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 17:55:17,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:55:17,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:55:17,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 17:55:17,517 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:55:17,520 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:55:17,774 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:55:17,785 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:55:17,786 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 17:55:17,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:55:17 BoogieIcfgContainer [2022-10-15 17:55:17,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:55:17,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:55:17,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:55:17,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:55:17,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:55:16" (1/3) ... [2022-10-15 17:55:17,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797ba141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:55:17, skipping insertion in model container [2022-10-15 17:55:17,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:55:17" (2/3) ... [2022-10-15 17:55:17,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797ba141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:55:17, skipping insertion in model container [2022-10-15 17:55:17,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:55:17" (3/3) ... [2022-10-15 17:55:17,814 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrncmp.c [2022-10-15 17:55:17,902 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:55:17,903 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-10-15 17:55:17,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:55:18,012 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;@34ff49e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:55:18,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-10-15 17:55:18,019 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 29 states have (on average 1.7241379310344827) internal successors, (50), 42 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 17:55:18,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-15 17:55:18,029 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:55:18,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:55:18,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting build_nondet_StringErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [build_nondet_StringErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, build_nondet_StringErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 17:55:18,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:55:18,038 INFO L85 PathProgramCache]: Analyzing trace with hash 904319480, now seen corresponding path program 1 times [2022-10-15 17:55:18,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:55:18,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59605550] [2022-10-15 17:55:18,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:55:18,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:55:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:55:18,376 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 17:55:18,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:55:18,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59605550] [2022-10-15 17:55:18,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59605550] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:55:18,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:55:18,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:55:18,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478130914] [2022-10-15 17:55:18,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:55:18,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:55:18,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:55:18,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:55:18,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:55:18,437 INFO L87 Difference]: Start difference. First operand has 46 states, 29 states have (on average 1.7241379310344827) internal successors, (50), 42 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:55:18,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:55:18,508 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2022-10-15 17:55:18,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:55:18,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-15 17:55:18,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:55:18,521 INFO L225 Difference]: With dead ends: 45 [2022-10-15 17:55:18,521 INFO L226 Difference]: Without dead ends: 43 [2022-10-15 17:55:18,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:55:18,529 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 4 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:55:18,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 80 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:55:18,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-10-15 17:55:18,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-10-15 17:55:18,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 39 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 17:55:18,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2022-10-15 17:55:18,580 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 7 [2022-10-15 17:55:18,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:55:18,581 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2022-10-15 17:55:18,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:55:18,582 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2022-10-15 17:55:18,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-15 17:55:18,582 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:55:18,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:55:18,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:55:18,583 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting build_nondet_StringErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [build_nondet_StringErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, build_nondet_StringErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 17:55:18,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:55:18,585 INFO L85 PathProgramCache]: Analyzing trace with hash 904319481, now seen corresponding path program 1 times [2022-10-15 17:55:18,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:55:18,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498435776] [2022-10-15 17:55:18,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:55:18,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:55:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:55:18,772 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 17:55:18,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:55:18,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498435776] [2022-10-15 17:55:18,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498435776] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:55:18,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:55:18,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:55:18,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924545263] [2022-10-15 17:55:18,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:55:18,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:55:18,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:55:18,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:55:18,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:55:18,777 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:55:18,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:55:18,829 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2022-10-15 17:55:18,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:55:18,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-15 17:55:18,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:55:18,831 INFO L225 Difference]: With dead ends: 42 [2022-10-15 17:55:18,831 INFO L226 Difference]: Without dead ends: 42 [2022-10-15 17:55:18,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:55:18,834 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 4 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:55:18,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 118 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:55:18,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-15 17:55:18,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-15 17:55:18,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 38 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 17:55:18,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-10-15 17:55:18,844 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 7 [2022-10-15 17:55:18,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:55:18,844 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-10-15 17:55:18,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:55:18,845 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-10-15 17:55:18,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-15 17:55:18,846 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:55:18,846 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:55:18,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:55:18,847 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [build_nondet_StringErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, build_nondet_StringErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 17:55:18,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:55:18,848 INFO L85 PathProgramCache]: Analyzing trace with hash -357081600, now seen corresponding path program 1 times [2022-10-15 17:55:18,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:55:18,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878974894] [2022-10-15 17:55:18,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:55:18,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:55:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 17:55:18,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 17:55:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 17:55:18,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 17:55:18,954 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 17:55:18,956 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-10-15 17:55:18,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location build_nondet_StringErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2022-10-15 17:55:18,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location build_nondet_StringErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-10-15 17:55:18,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-10-15 17:55:18,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-10-15 17:55:18,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-10-15 17:55:18,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-10-15 17:55:18,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-10-15 17:55:18,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 13 remaining) [2022-10-15 17:55:18,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 13 remaining) [2022-10-15 17:55:18,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 13 remaining) [2022-10-15 17:55:18,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 13 remaining) [2022-10-15 17:55:18,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 13 remaining) [2022-10-15 17:55:18,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:55:18,968 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-10-15 17:55:18,973 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 17:55:19,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 05:55:19 BoogieIcfgContainer [2022-10-15 17:55:19,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 17:55:19,006 INFO L158 Benchmark]: Toolchain (without parser) took 2255.47ms. Allocated memory is still 164.6MB. Free memory was 139.6MB in the beginning and 105.2MB in the end (delta: 34.4MB). Peak memory consumption was 33.8MB. Max. memory is 8.0GB. [2022-10-15 17:55:19,007 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 164.6MB. Free memory was 134.4MB in the beginning and 134.3MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 17:55:19,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.50ms. Allocated memory is still 164.6MB. Free memory was 139.3MB in the beginning and 129.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-15 17:55:19,008 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.19ms. Allocated memory is still 164.6MB. Free memory was 129.2MB in the beginning and 127.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 17:55:19,009 INFO L158 Benchmark]: Boogie Preprocessor took 51.57ms. Allocated memory is still 164.6MB. Free memory was 127.6MB in the beginning and 126.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 17:55:19,009 INFO L158 Benchmark]: RCFGBuilder took 475.00ms. Allocated memory is still 164.6MB. Free memory was 126.3MB in the beginning and 112.9MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-15 17:55:19,010 INFO L158 Benchmark]: TraceAbstraction took 1211.66ms. Allocated memory is still 164.6MB. Free memory was 112.1MB in the beginning and 105.2MB in the end (delta: 6.9MB). Peak memory consumption was 6.6MB. Max. memory is 8.0GB. [2022-10-15 17:55:19,014 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 164.6MB. Free memory was 134.4MB in the beginning and 134.3MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 435.50ms. Allocated memory is still 164.6MB. Free memory was 139.3MB in the beginning and 129.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.19ms. Allocated memory is still 164.6MB. Free memory was 129.2MB in the beginning and 127.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.57ms. Allocated memory is still 164.6MB. Free memory was 127.6MB in the beginning and 126.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 475.00ms. Allocated memory is still 164.6MB. Free memory was 126.3MB in the beginning and 112.9MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1211.66ms. Allocated memory is still 164.6MB. Free memory was 112.1MB in the beginning and 105.2MB in the end (delta: 6.9MB). Peak memory consumption was 6.6MB. 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: 46]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 46. Possible FailurePath: [L47] CALL, EXPR build_nondet_String() [L13] int length = __VERIFIER_nondet_int(); [L14] COND TRUE length < 1 [L15] length = 1 VAL [length=1] [L17] char* nondetString = (char*) malloc(length * sizeof(char)); [L18] nondetString[length-1] = '\0' VAL [length=1, nondetString={-1:0}] [L19] return nondetString; VAL [\result={-1:0}, length=1, nondetString={-1:0}] [L47] RET, EXPR build_nondet_String() VAL [build_nondet_String()={-1:0}] [L47] CALL, EXPR build_nondet_String() [L13] int length = __VERIFIER_nondet_int(); [L14] COND TRUE length < 1 [L15] length = 1 VAL [length=1] [L17] char* nondetString = (char*) malloc(length * sizeof(char)); [L18] nondetString[length-1] = '\0' VAL [length=1, nondetString={-2:0}] [L19] return nondetString; VAL [\result={-2:0}, length=1, nondetString={-2:0}] [L47] RET, EXPR build_nondet_String() VAL [build_nondet_String()={-1:0}, build_nondet_String()={-2:0}] [L47] CALL, EXPR cstrncmp(build_nondet_String(),build_nondet_String(),__VERIFIER_nondet_int()) [L28] unsigned char uc1, uc2; VAL [\old(n)=0, n=0, s1={-1:0}, s1={-1:0}, s2={-2:0}, s2={-2:0}] [L30] COND TRUE n == 0 [L31] return 0; VAL [\old(n)=0, \result=0, n=0, s1={-1:0}, s1={-1:0}, s2={-2:0}, s2={-2:0}] [L47] RET, EXPR cstrncmp(build_nondet_String(),build_nondet_String(),__VERIFIER_nondet_int()) [L47] return cstrncmp(build_nondet_String(),build_nondet_String(),__VERIFIER_nondet_int()); - 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: -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: -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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 198 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 103 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 95 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 17:55:19,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...