/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/inv_sqrt_Quake.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 01:15:03,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 01:15:03,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 01:15:03,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 01:15:03,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 01:15:03,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 01:15:03,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 01:15:03,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 01:15:03,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 01:15:03,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 01:15:03,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 01:15:03,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 01:15:03,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 01:15:03,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 01:15:03,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 01:15:03,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 01:15:03,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 01:15:03,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 01:15:03,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 01:15:03,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 01:15:03,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 01:15:03,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 01:15:03,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 01:15:03,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 01:15:03,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 01:15:03,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 01:15:03,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 01:15:03,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 01:15:03,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 01:15:03,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 01:15:03,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 01:15:03,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 01:15:03,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 01:15:03,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 01:15:03,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 01:15:03,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 01:15:03,263 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 [2022-10-16 01:15:03,293 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 01:15:03,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 01:15:03,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 01:15:03,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 01:15:03,295 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 01:15:03,295 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 01:15:03,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 01:15:03,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 01:15:03,296 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 01:15:03,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 01:15:03,297 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 01:15:03,297 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 01:15:03,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 01:15:03,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 01:15:03,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 01:15:03,298 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 01:15:03,298 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 01:15:03,298 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 01:15:03,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 01:15:03,298 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 01:15:03,299 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 01:15:03,299 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 01:15:03,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 01:15:03,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 01:15:03,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 01:15:03,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 01:15:03,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 01:15:03,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 01:15:03,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 01:15:03,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 01:15:03,301 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 01:15:03,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 01:15:03,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 01:15:03,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 01:15:03,765 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 01:15:03,766 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 01:15:03,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2022-10-16 01:15:03,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/337fdfcd5/e431a116661648a996c8bde3d06353a9/FLAGfef23c8dc [2022-10-16 01:15:04,478 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 01:15:04,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2022-10-16 01:15:04,488 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/337fdfcd5/e431a116661648a996c8bde3d06353a9/FLAGfef23c8dc [2022-10-16 01:15:04,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/337fdfcd5/e431a116661648a996c8bde3d06353a9 [2022-10-16 01:15:04,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 01:15:04,841 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 01:15:04,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 01:15:04,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 01:15:04,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 01:15:04,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:15:04" (1/1) ... [2022-10-16 01:15:04,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4a4b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:04, skipping insertion in model container [2022-10-16 01:15:04,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:15:04" (1/1) ... [2022-10-16 01:15:04,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 01:15:04,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 01:15:05,121 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/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2022-10-16 01:15:05,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 01:15:05,149 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 01:15:05,190 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/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2022-10-16 01:15:05,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 01:15:05,219 INFO L208 MainTranslator]: Completed translation [2022-10-16 01:15:05,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:05 WrapperNode [2022-10-16 01:15:05,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 01:15:05,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 01:15:05,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 01:15:05,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 01:15:05,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:05" (1/1) ... [2022-10-16 01:15:05,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:05" (1/1) ... [2022-10-16 01:15:05,296 INFO L138 Inliner]: procedures = 18, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 70 [2022-10-16 01:15:05,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 01:15:05,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 01:15:05,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 01:15:05,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 01:15:05,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:05" (1/1) ... [2022-10-16 01:15:05,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:05" (1/1) ... [2022-10-16 01:15:05,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:05" (1/1) ... [2022-10-16 01:15:05,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:05" (1/1) ... [2022-10-16 01:15:05,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:05" (1/1) ... [2022-10-16 01:15:05,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:05" (1/1) ... [2022-10-16 01:15:05,328 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:05" (1/1) ... [2022-10-16 01:15:05,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:05" (1/1) ... [2022-10-16 01:15:05,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 01:15:05,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 01:15:05,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 01:15:05,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 01:15:05,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:05" (1/1) ... [2022-10-16 01:15:05,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 01:15:05,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 01:15:05,381 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) [2022-10-16 01:15:05,394 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 [2022-10-16 01:15:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 01:15:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 01:15:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 01:15:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-16 01:15:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 01:15:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-16 01:15:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 01:15:05,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 01:15:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 01:15:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 01:15:05,517 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 01:15:05,519 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 01:15:05,796 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 01:15:05,804 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 01:15:05,804 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 01:15:05,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:15:05 BoogieIcfgContainer [2022-10-16 01:15:05,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 01:15:05,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 01:15:05,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 01:15:05,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 01:15:05,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:15:04" (1/3) ... [2022-10-16 01:15:05,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d82d21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:15:05, skipping insertion in model container [2022-10-16 01:15:05,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:05" (2/3) ... [2022-10-16 01:15:05,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d82d21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:15:05, skipping insertion in model container [2022-10-16 01:15:05,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:15:05" (3/3) ... [2022-10-16 01:15:05,818 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c.v+cfa-reducer.c [2022-10-16 01:15:05,866 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 01:15:05,866 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 01:15:06,027 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 01:15:06,036 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;@6c3764b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 01:15:06,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 01:15:06,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 29 states have internal predecessors, (35), 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) [2022-10-16 01:15:06,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 01:15:06,049 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:15:06,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 01:15:06,050 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-10-16 01:15:06,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:15:06,057 INFO L85 PathProgramCache]: Analyzing trace with hash 927109, now seen corresponding path program 1 times [2022-10-16 01:15:06,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:15:06,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074329438] [2022-10-16 01:15:06,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:15:06,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:15:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:15:06,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 01:15:06,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 01:15:06,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074329438] [2022-10-16 01:15:06,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074329438] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 01:15:06,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 01:15:06,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 01:15:06,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375314377] [2022-10-16 01:15:06,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 01:15:06,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 01:15:06,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 01:15:06,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 01:15:06,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 01:15:06,304 INFO L87 Difference]: Start difference. First operand has 30 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 29 states have internal predecessors, (35), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-10-16 01:15:06,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 01:15:06,351 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-10-16 01:15:06,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 01:15:06,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-16 01:15:06,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 01:15:06,363 INFO L225 Difference]: With dead ends: 31 [2022-10-16 01:15:06,363 INFO L226 Difference]: Without dead ends: 28 [2022-10-16 01:15:06,365 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 [2022-10-16 01:15:06,370 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 6 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 01:15:06,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 46 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 01:15:06,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-10-16 01:15:06,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-10-16 01:15:06,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 27 states have internal predecessors, (29), 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) [2022-10-16 01:15:06,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2022-10-16 01:15:06,410 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 4 [2022-10-16 01:15:06,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 01:15:06,411 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2022-10-16 01:15:06,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-10-16 01:15:06,412 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2022-10-16 01:15:06,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 01:15:06,413 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:15:06,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 01:15:06,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 01:15:06,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-10-16 01:15:06,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:15:06,415 INFO L85 PathProgramCache]: Analyzing trace with hash 889507720, now seen corresponding path program 1 times [2022-10-16 01:15:06,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:15:06,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887195661] [2022-10-16 01:15:06,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:15:06,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:15:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:15:06,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 01:15:06,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 01:15:06,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887195661] [2022-10-16 01:15:06,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887195661] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 01:15:06,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 01:15:06,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 01:15:06,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068176120] [2022-10-16 01:15:06,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 01:15:06,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 01:15:06,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 01:15:06,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 01:15:06,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 01:15:06,564 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 01:15:06,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 01:15:06,608 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-10-16 01:15:06,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 01:15:06,609 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 01:15:06,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 01:15:06,610 INFO L225 Difference]: With dead ends: 24 [2022-10-16 01:15:06,610 INFO L226 Difference]: Without dead ends: 24 [2022-10-16 01:15:06,611 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 [2022-10-16 01:15:06,613 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 18 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 01:15:06,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 18 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 01:15:06,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-10-16 01:15:06,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-10-16 01:15:06,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 23 states have internal predecessors, (25), 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) [2022-10-16 01:15:06,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-10-16 01:15:06,619 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 6 [2022-10-16 01:15:06,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 01:15:06,620 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-10-16 01:15:06,620 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), 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) [2022-10-16 01:15:06,620 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-10-16 01:15:06,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 01:15:06,621 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:15:06,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 01:15:06,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 01:15:06,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-10-16 01:15:06,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:15:06,623 INFO L85 PathProgramCache]: Analyzing trace with hash 889507721, now seen corresponding path program 1 times [2022-10-16 01:15:06,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:15:06,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088481485] [2022-10-16 01:15:06,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:15:06,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:15:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:15:06,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 01:15:06,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 01:15:06,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088481485] [2022-10-16 01:15:06,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088481485] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 01:15:06,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 01:15:06,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 01:15:06,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137282651] [2022-10-16 01:15:06,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 01:15:06,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 01:15:06,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 01:15:06,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 01:15:06,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 01:15:06,733 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 01:15:06,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 01:15:06,756 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-10-16 01:15:06,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 01:15:06,757 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 01:15:06,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 01:15:06,758 INFO L225 Difference]: With dead ends: 20 [2022-10-16 01:15:06,758 INFO L226 Difference]: Without dead ends: 20 [2022-10-16 01:15:06,759 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 [2022-10-16 01:15:06,760 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 01:15:06,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 19 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 01:15:06,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-10-16 01:15:06,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-10-16 01:15:06,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 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) [2022-10-16 01:15:06,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-10-16 01:15:06,766 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 6 [2022-10-16 01:15:06,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 01:15:06,766 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-10-16 01:15:06,767 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), 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) [2022-10-16 01:15:06,767 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-10-16 01:15:06,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 01:15:06,768 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:15:06,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 01:15:06,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 01:15:06,770 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-10-16 01:15:06,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:15:06,771 INFO L85 PathProgramCache]: Analyzing trace with hash 734648593, now seen corresponding path program 1 times [2022-10-16 01:15:06,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:15:06,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227850926] [2022-10-16 01:15:06,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:15:06,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:15:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:15:06,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 01:15:06,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 01:15:06,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227850926] [2022-10-16 01:15:06,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227850926] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 01:15:06,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 01:15:06,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 01:15:06,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865884280] [2022-10-16 01:15:06,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 01:15:06,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 01:15:06,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 01:15:06,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 01:15:06,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 01:15:06,930 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 01:15:07,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 01:15:07,009 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2022-10-16 01:15:07,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 01:15:07,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 01:15:07,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 01:15:07,013 INFO L225 Difference]: With dead ends: 24 [2022-10-16 01:15:07,013 INFO L226 Difference]: Without dead ends: 24 [2022-10-16 01:15:07,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 01:15:07,018 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 26 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 50 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 [2022-10-16 01:15:07,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 50 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 01:15:07,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-10-16 01:15:07,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2022-10-16 01:15:07,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 01:15:07,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-10-16 01:15:07,030 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2022-10-16 01:15:07,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 01:15:07,031 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-10-16 01:15:07,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 01:15:07,031 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-10-16 01:15:07,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 01:15:07,034 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:15:07,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 01:15:07,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 01:15:07,037 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-10-16 01:15:07,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:15:07,037 INFO L85 PathProgramCache]: Analyzing trace with hash 734648734, now seen corresponding path program 1 times [2022-10-16 01:15:07,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:15:07,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208580988] [2022-10-16 01:15:07,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:15:07,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:15:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:15:07,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 01:15:07,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 01:15:07,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208580988] [2022-10-16 01:15:07,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208580988] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 01:15:07,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 01:15:07,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 01:15:07,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382946549] [2022-10-16 01:15:07,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 01:15:07,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 01:15:07,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 01:15:07,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 01:15:07,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 01:15:07,278 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 01:15:07,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 01:15:07,298 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-10-16 01:15:07,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 01:15:07,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 01:15:07,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 01:15:07,299 INFO L225 Difference]: With dead ends: 21 [2022-10-16 01:15:07,300 INFO L226 Difference]: Without dead ends: 18 [2022-10-16 01:15:07,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 01:15:07,301 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 01:15:07,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 26 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 01:15:07,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-10-16 01:15:07,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-10-16 01:15:07,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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) [2022-10-16 01:15:07,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-10-16 01:15:07,306 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2022-10-16 01:15:07,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 01:15:07,306 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-10-16 01:15:07,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 01:15:07,307 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-10-16 01:15:07,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 01:15:07,308 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:15:07,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 01:15:07,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 01:15:07,309 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-10-16 01:15:07,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:15:07,309 INFO L85 PathProgramCache]: Analyzing trace with hash 751659254, now seen corresponding path program 1 times [2022-10-16 01:15:07,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:15:07,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689819241] [2022-10-16 01:15:07,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:15:07,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:15:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 01:15:07,331 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 01:15:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 01:15:07,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 01:15:07,368 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 01:15:07,369 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-10-16 01:15:07,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining) [2022-10-16 01:15:07,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-10-16 01:15:07,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-10-16 01:15:07,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-10-16 01:15:07,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2022-10-16 01:15:07,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 10 remaining) [2022-10-16 01:15:07,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 10 remaining) [2022-10-16 01:15:07,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 10 remaining) [2022-10-16 01:15:07,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-10-16 01:15:07,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 01:15:07,379 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-10-16 01:15:07,386 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 01:15:07,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:15:07 BoogieIcfgContainer [2022-10-16 01:15:07,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 01:15:07,420 INFO L158 Benchmark]: Toolchain (without parser) took 2589.52ms. Allocated memory is still 151.0MB. Free memory was 125.4MB in the beginning and 62.4MB in the end (delta: 63.0MB). Peak memory consumption was 63.0MB. Max. memory is 8.0GB. [2022-10-16 01:15:07,421 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 151.0MB. Free memory was 121.2MB in the beginning and 121.1MB in the end (delta: 83.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 01:15:07,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.58ms. Allocated memory is still 151.0MB. Free memory was 125.3MB in the beginning and 114.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 01:15:07,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.83ms. Allocated memory is still 151.0MB. Free memory was 114.8MB in the beginning and 113.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 01:15:07,422 INFO L158 Benchmark]: Boogie Preprocessor took 34.45ms. Allocated memory is still 151.0MB. Free memory was 113.1MB in the beginning and 111.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 01:15:07,423 INFO L158 Benchmark]: RCFGBuilder took 473.87ms. Allocated memory is still 151.0MB. Free memory was 111.8MB in the beginning and 100.4MB in the end (delta: 11.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-16 01:15:07,423 INFO L158 Benchmark]: TraceAbstraction took 1609.93ms. Allocated memory is still 151.0MB. Free memory was 99.8MB in the beginning and 62.4MB in the end (delta: 37.4MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2022-10-16 01:15:07,425 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 151.0MB. Free memory was 121.2MB in the beginning and 121.1MB in the end (delta: 83.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 379.58ms. Allocated memory is still 151.0MB. Free memory was 125.3MB in the beginning and 114.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 70.83ms. Allocated memory is still 151.0MB. Free memory was 114.8MB in the beginning and 113.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.45ms. Allocated memory is still 151.0MB. Free memory was 113.1MB in the beginning and 111.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 473.87ms. Allocated memory is still 151.0MB. Free memory was 111.8MB in the beginning and 100.4MB in the end (delta: 11.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1609.93ms. Allocated memory is still 151.0MB. Free memory was 99.8MB in the beginning and 62.4MB in the end (delta: 37.4MB). Peak memory consumption was 36.7MB. 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: 59]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryArithmeticDOUBLEoperation at line 42, overapproximation of memtrack at line 59. Possible FailurePath: [L1] int __return_main; [L17] float __return_72; [L18] int __return_87; VAL [__return_72=0, __return_87=0, __return_main=0] [L21] float main__a; [L22] float main__r; [L23] main__a = __VERIFIER_nondet_float() [L24] int main____CPAchecker_TMP_0; VAL [__return_72=0, __return_87=0, __return_main=0] [L25] COND TRUE main__a >= 0.10000000149011612 VAL [__return_72=0, __return_87=0, __return_main=0] [L27] COND TRUE main__a <= 100.0 [L29] main____CPAchecker_TMP_0 = 1 VAL [__return_72=0, __return_87=0, __return_main=0, main____CPAchecker_TMP_0=1] [L30] COND TRUE main____CPAchecker_TMP_0 != 0 [L33] float __tmp_1; [L34] __tmp_1 = main__a [L35] float InvSqrt__x; [L36] InvSqrt__x = __tmp_1 [L37] float InvSqrt__xhalf = 0.5 * InvSqrt__x; [L38] union float_int InvSqrt__i; VAL [__return_72=0, __return_87=0, __return_main=0, __tmp_1=1597463015, InvSqrt__i={5:0}, InvSqrt__x=1597463015, main____CPAchecker_TMP_0=1, main__a=1597463015] [L39] InvSqrt__i.f = InvSqrt__x VAL [__return_72=0, __return_87=0, __return_main=0, __tmp_1=1597463015, InvSqrt__i={5:0}, InvSqrt__x=1597463015, main____CPAchecker_TMP_0=1, main__a=1597463015] [L40] EXPR InvSqrt__i.i VAL [__return_72=0, __return_87=0, __return_main=0, __tmp_1=1597463015, InvSqrt__i={5:0}, InvSqrt__i.i=0, InvSqrt__x=1597463015, main____CPAchecker_TMP_0=1, main__a=1597463015] [L40] InvSqrt__i.i = 1597463007 - ((InvSqrt__i.i) >> 1) VAL [__return_72=0, __return_87=0, __return_main=0, __tmp_1=1597463015, InvSqrt__i={5:0}, InvSqrt__i.i=0, InvSqrt__x=1597463015, main____CPAchecker_TMP_0=1, main__a=1597463015] [L41] EXPR InvSqrt__i.f VAL [__return_72=0, __return_87=0, __return_main=0, __tmp_1=1597463015, InvSqrt__i={5:0}, InvSqrt__i.f=1597463016, InvSqrt__x=1597463015, main____CPAchecker_TMP_0=1, main__a=1597463015] [L41] InvSqrt__x = InvSqrt__i.f [L42] InvSqrt__x = InvSqrt__x * (1.5 - ((InvSqrt__xhalf * InvSqrt__x) * InvSqrt__x)) [L43] __return_72 = InvSqrt__x [L44] main__r = __return_72 [L45] int main____CPAchecker_TMP_1; VAL [__return_72=1597463017, __return_87=0, __return_main=0, __tmp_1=1597463015, InvSqrt__i={5:0}, InvSqrt__x=1597463017, main____CPAchecker_TMP_0=1, main__a=1597463015, main__r=1597463017] [L46] COND FALSE !(main__r >= 0.0) VAL [__return_72=1597463017, __return_87=0, __return_main=0, __tmp_1=1597463015, InvSqrt__i={5:0}, InvSqrt__x=1597463017, main____CPAchecker_TMP_0=1, main__a=1597463015, main__r=1597463017] [L72] main____CPAchecker_TMP_1 = 0 VAL [__return_72=1597463017, __return_87=0, __return_main=0, __tmp_1=1597463015, InvSqrt__i={5:0}, InvSqrt__x=1597463017, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=1597463015, main__r=1597463017] [L53] int __tmp_2; [L54] __tmp_2 = main____CPAchecker_TMP_1 [L55] int __VERIFIER_assert__cond; [L56] __VERIFIER_assert__cond = __tmp_2 VAL [__return_72=1597463017, __return_87=0, __return_main=0, __tmp_1=1597463015, __tmp_2=0, __VERIFIER_assert__cond=0, InvSqrt__i={5:0}, InvSqrt__x=1597463017, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=1597463015, main__r=1597463017] [L57] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_72=1597463017, __return_87=0, __return_main=0, __tmp_1=1597463015, __tmp_2=0, __VERIFIER_assert__cond=0, InvSqrt__i={5:0}, InvSqrt__x=1597463017, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=1597463015, main__r=1597463017] [L59] reach_error() VAL [__return_72=1597463017, __return_87=0, __return_main=0, __tmp_1=1597463015, __tmp_2=0, __VERIFIER_assert__cond=0, InvSqrt__i={5:0}, InvSqrt__x=1597463017, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=1597463015, main__r=1597463017] - 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: 16]: 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, 30 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 159 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 63 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 96 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 125 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 [2022-10-16 01:15:07,481 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...