/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-newlib/float_req_bl_1011b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 16:45:39,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 16:45:39,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 16:45:39,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 16:45:39,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 16:45:39,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 16:45:39,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 16:45:39,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 16:45:39,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 16:45:39,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 16:45:39,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 16:45:39,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 16:45:39,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 16:45:39,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 16:45:39,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 16:45:39,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 16:45:39,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 16:45:39,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 16:45:39,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 16:45:39,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 16:45:39,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 16:45:39,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 16:45:39,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 16:45:39,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 16:45:39,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 16:45:39,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 16:45:39,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 16:45:39,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 16:45:39,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 16:45:39,635 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 16:45:39,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 16:45:39,636 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 16:45:39,637 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 16:45:39,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 16:45:39,639 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 16:45:39,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 16:45:39,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 16:45:39,642 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 16:45:39,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 16:45:39,644 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 16:45:39,644 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 16:45:39,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 16:45:39,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 16:45:39,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 16:45:39,645 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 16:45:39,645 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 16:45:39,645 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 16:45:39,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 16:45:39,646 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 16:45:39,646 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 16:45:39,646 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 16:45:39,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 16:45:39,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 16:45:39,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 16:45:39,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:45:39,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 16:45:39,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 16:45:39,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 16:45:39,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 16:45:39,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 16:45:40,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 16:45:40,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 16:45:40,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 16:45:40,154 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 16:45:40,155 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 16:45:40,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1011b.c [2022-10-15 16:45:40,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b8a8edca/e72175d9e1304f3892849c85155cf1d1/FLAGab0af3cd2 [2022-10-15 16:45:40,848 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 16:45:40,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1011b.c [2022-10-15 16:45:40,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b8a8edca/e72175d9e1304f3892849c85155cf1d1/FLAGab0af3cd2 [2022-10-15 16:45:41,222 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b8a8edca/e72175d9e1304f3892849c85155cf1d1 [2022-10-15 16:45:41,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 16:45:41,233 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 16:45:41,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 16:45:41,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 16:45:41,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 16:45:41,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:45:41" (1/1) ... [2022-10-15 16:45:41,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@386779b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:45:41, skipping insertion in model container [2022-10-15 16:45:41,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:45:41" (1/1) ... [2022-10-15 16:45:41,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 16:45:41,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 16:45:41,535 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-newlib/float_req_bl_1011b.c[1146,1159] [2022-10-15 16:45:41,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:45:41,549 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 16:45:41,580 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-newlib/float_req_bl_1011b.c[1146,1159] [2022-10-15 16:45:41,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:45:41,606 INFO L208 MainTranslator]: Completed translation [2022-10-15 16:45:41,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:45:41 WrapperNode [2022-10-15 16:45:41,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 16:45:41,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 16:45:41,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 16:45:41,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 16:45:41,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:45:41" (1/1) ... [2022-10-15 16:45:41,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:45:41" (1/1) ... [2022-10-15 16:45:41,654 INFO L138 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-10-15 16:45:41,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 16:45:41,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 16:45:41,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 16:45:41,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 16:45:41,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:45:41" (1/1) ... [2022-10-15 16:45:41,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:45:41" (1/1) ... [2022-10-15 16:45:41,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:45:41" (1/1) ... [2022-10-15 16:45:41,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:45:41" (1/1) ... [2022-10-15 16:45:41,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:45:41" (1/1) ... [2022-10-15 16:45:41,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:45:41" (1/1) ... [2022-10-15 16:45:41,684 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:45:41" (1/1) ... [2022-10-15 16:45:41,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:45:41" (1/1) ... [2022-10-15 16:45:41,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 16:45:41,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 16:45:41,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 16:45:41,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 16:45:41,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:45:41" (1/1) ... [2022-10-15 16:45:41,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:45:41,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:45:41,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 16:45:41,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 16:45:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 16:45:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 16:45:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 16:45:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-15 16:45:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 16:45:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-15 16:45:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 16:45:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 16:45:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 16:45:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 16:45:41,879 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 16:45:41,881 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 16:45:42,175 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 16:45:42,183 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 16:45:42,183 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-15 16:45:42,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:45:42 BoogieIcfgContainer [2022-10-15 16:45:42,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 16:45:42,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 16:45:42,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 16:45:42,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 16:45:42,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:45:41" (1/3) ... [2022-10-15 16:45:42,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3277f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:45:42, skipping insertion in model container [2022-10-15 16:45:42,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:45:41" (2/3) ... [2022-10-15 16:45:42,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3277f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:45:42, skipping insertion in model container [2022-10-15 16:45:42,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:45:42" (3/3) ... [2022-10-15 16:45:42,201 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011b.c [2022-10-15 16:45:42,250 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 16:45:42,250 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-15 16:45:42,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 16:45:42,367 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;@1da51657, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 16:45:42,367 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-15 16:45:42,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 40 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:45:42,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 16:45:42,380 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:45:42,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 16:45:42,382 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:45:42,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:45:42,389 INFO L85 PathProgramCache]: Analyzing trace with hash 925637, now seen corresponding path program 1 times [2022-10-15 16:45:42,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:45:42,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068038909] [2022-10-15 16:45:42,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:45:42,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:45:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:45:42,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:45:42,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:45:42,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068038909] [2022-10-15 16:45:42,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068038909] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:45:42,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:45:42,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:45:42,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205429169] [2022-10-15 16:45:42,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:45:42,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:45:42,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:45:42,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:45:42,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:45:42,695 INFO L87 Difference]: Start difference. First operand has 41 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 40 states have internal predecessors, (48), 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) [2022-10-15 16:45:42,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:45:42,758 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2022-10-15 16:45:42,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:45:42,761 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 [2022-10-15 16:45:42,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:45:42,771 INFO L225 Difference]: With dead ends: 39 [2022-10-15 16:45:42,772 INFO L226 Difference]: Without dead ends: 37 [2022-10-15 16:45:42,774 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 16:45:42,780 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:45:42,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 51 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:45:42,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-15 16:45:42,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-10-15 16:45:42,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.48) internal successors, (37), 36 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:45:42,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2022-10-15 16:45:42,824 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 4 [2022-10-15 16:45:42,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:45:42,825 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2022-10-15 16:45:42,825 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) [2022-10-15 16:45:42,825 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2022-10-15 16:45:42,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 16:45:42,826 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:45:42,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 16:45:42,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 16:45:42,827 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:45:42,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:45:42,828 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2022-10-15 16:45:42,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:45:42,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918976891] [2022-10-15 16:45:42,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:45:42,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:45:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:45:42,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:45:42,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:45:42,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918976891] [2022-10-15 16:45:42,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918976891] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:45:42,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:45:42,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:45:42,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341253673] [2022-10-15 16:45:42,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:45:42,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:45:42,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:45:42,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:45:42,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:45:42,995 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. 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) [2022-10-15 16:45:43,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:45:43,032 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2022-10-15 16:45:43,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:45:43,033 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 [2022-10-15 16:45:43,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:45:43,034 INFO L225 Difference]: With dead ends: 35 [2022-10-15 16:45:43,035 INFO L226 Difference]: Without dead ends: 35 [2022-10-15 16:45:43,035 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 16:45:43,037 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:45:43,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 51 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:45:43,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-15 16:45:43,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-10-15 16:45:43,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.4) internal successors, (35), 34 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) [2022-10-15 16:45:43,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2022-10-15 16:45:43,046 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 4 [2022-10-15 16:45:43,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:45:43,046 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2022-10-15 16:45:43,046 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) [2022-10-15 16:45:43,046 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2022-10-15 16:45:43,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 16:45:43,050 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:45:43,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:45:43,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 16:45:43,051 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:45:43,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:45:43,052 INFO L85 PathProgramCache]: Analyzing trace with hash 234238316, now seen corresponding path program 1 times [2022-10-15 16:45:43,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:45:43,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689603944] [2022-10-15 16:45:43,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:45:43,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:45:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:45:43,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:45:43,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:45:43,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689603944] [2022-10-15 16:45:43,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689603944] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:45:43,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:45:43,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:45:43,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477079732] [2022-10-15 16:45:43,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:45:43,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:45:43,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:45:43,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:45:43,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:45:43,148 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:45:43,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:45:43,184 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2022-10-15 16:45:43,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:45:43,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 16:45:43,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:45:43,186 INFO L225 Difference]: With dead ends: 33 [2022-10-15 16:45:43,186 INFO L226 Difference]: Without dead ends: 33 [2022-10-15 16:45:43,186 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 16:45:43,188 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 4 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 42 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 16:45:43,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 42 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:45:43,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-10-15 16:45:43,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-10-15 16:45:43,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.32) internal successors, (33), 32 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:45:43,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2022-10-15 16:45:43,195 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 9 [2022-10-15 16:45:43,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:45:43,196 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2022-10-15 16:45:43,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:45:43,196 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2022-10-15 16:45:43,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 16:45:43,197 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:45:43,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:45:43,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 16:45:43,197 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:45:43,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:45:43,198 INFO L85 PathProgramCache]: Analyzing trace with hash 234238317, now seen corresponding path program 1 times [2022-10-15 16:45:43,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:45:43,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138699829] [2022-10-15 16:45:43,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:45:43,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:45:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:45:43,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:45:43,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:45:43,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138699829] [2022-10-15 16:45:43,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138699829] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:45:43,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:45:43,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:45:43,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137220395] [2022-10-15 16:45:43,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:45:43,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:45:43,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:45:43,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:45:43,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:45:43,347 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:45:43,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:45:43,405 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2022-10-15 16:45:43,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:45:43,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 16:45:43,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:45:43,407 INFO L225 Difference]: With dead ends: 31 [2022-10-15 16:45:43,410 INFO L226 Difference]: Without dead ends: 31 [2022-10-15 16:45:43,410 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 16:45:43,414 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 45 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 [2022-10-15 16:45:43,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 45 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:45:43,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-15 16:45:43,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-10-15 16:45:43,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.24) internal successors, (31), 30 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:45:43,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2022-10-15 16:45:43,431 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 9 [2022-10-15 16:45:43,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:45:43,431 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2022-10-15 16:45:43,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:45:43,432 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2022-10-15 16:45:43,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 16:45:43,433 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:45:43,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:45:43,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 16:45:43,434 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:45:43,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:45:43,435 INFO L85 PathProgramCache]: Analyzing trace with hash -866969265, now seen corresponding path program 1 times [2022-10-15 16:45:43,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:45:43,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816937192] [2022-10-15 16:45:43,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:45:43,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:45:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:45:43,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 16:45:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:45:43,612 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 16:45:43,612 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 16:45:43,614 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (13 of 14 remaining) [2022-10-15 16:45:43,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2022-10-15 16:45:43,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2022-10-15 16:45:43,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2022-10-15 16:45:43,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 14 remaining) [2022-10-15 16:45:43,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 14 remaining) [2022-10-15 16:45:43,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2022-10-15 16:45:43,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2022-10-15 16:45:43,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2022-10-15 16:45:43,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2022-10-15 16:45:43,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2022-10-15 16:45:43,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2022-10-15 16:45:43,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2022-10-15 16:45:43,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK (0 of 14 remaining) [2022-10-15 16:45:43,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 16:45:43,636 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-10-15 16:45:43,641 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 16:45:43,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:45:43 BoogieIcfgContainer [2022-10-15 16:45:43,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 16:45:43,672 INFO L158 Benchmark]: Toolchain (without parser) took 2443.76ms. Allocated memory is still 152.0MB. Free memory was 125.5MB in the beginning and 69.4MB in the end (delta: 56.1MB). Peak memory consumption was 56.4MB. Max. memory is 8.0GB. [2022-10-15 16:45:43,672 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 152.0MB. Free memory is still 121.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:45:43,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.04ms. Allocated memory is still 152.0MB. Free memory was 125.3MB in the beginning and 115.3MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 16:45:43,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.02ms. Allocated memory is still 152.0MB. Free memory was 115.2MB in the beginning and 113.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 16:45:43,674 INFO L158 Benchmark]: Boogie Preprocessor took 32.61ms. Allocated memory is still 152.0MB. Free memory was 113.6MB in the beginning and 112.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 16:45:43,675 INFO L158 Benchmark]: RCFGBuilder took 497.39ms. Allocated memory is still 152.0MB. Free memory was 112.2MB in the beginning and 131.3MB in the end (delta: -19.1MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB. [2022-10-15 16:45:43,675 INFO L158 Benchmark]: TraceAbstraction took 1481.88ms. Allocated memory is still 152.0MB. Free memory was 130.7MB in the beginning and 69.4MB in the end (delta: 61.3MB). Peak memory consumption was 60.8MB. Max. memory is 8.0GB. [2022-10-15 16:45:43,678 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 152.0MB. Free memory is still 121.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 370.04ms. Allocated memory is still 152.0MB. Free memory was 125.3MB in the beginning and 115.3MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.02ms. Allocated memory is still 152.0MB. Free memory was 115.2MB in the beginning and 113.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.61ms. Allocated memory is still 152.0MB. Free memory was 113.6MB in the beginning and 112.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 497.39ms. Allocated memory is still 152.0MB. Free memory was 112.2MB in the beginning and 131.3MB in the end (delta: -19.1MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1481.88ms. Allocated memory is still 152.0MB. Free memory was 130.7MB in the beginning and 69.4MB in the end (delta: 61.3MB). Peak memory consumption was 60.8MB. 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: 52]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of someBinaryFLOATComparisonOperation at line 51, overapproximation of bitwiseAnd at line 23, overapproximation of memtrack at line 52, overapproximation of someUnaryFLOAToperation at line 47. Possible FailurePath: [L47] float x = -0.0f; [L48] CALL, EXPR fabs_float(x) [L15] __uint32_t ix; VAL [\old(x)=61, x=61] [L17] ieee_float_shape_type gf_u; VAL [\old(x)=61, gf_u={6:0}, x=61] [L18] gf_u.value = (x) VAL [\old(x)=61, gf_u={6:0}, x=61] [L19] EXPR gf_u.word VAL [\old(x)=61, gf_u={6:0}, gf_u.word=49, x=61] [L19] (ix) = gf_u.word [L22] ieee_float_shape_type sf_u; VAL [\old(x)=61, ix=49, sf_u={5:0}, x=61] [L23] sf_u.word = (ix & 0x7fffffff) VAL [\old(x)=61, ix=49, sf_u={5:0}, x=61] [L24] EXPR sf_u.value VAL [\old(x)=61, ix=49, sf_u={5:0}, sf_u.value=60, x=61] [L24] (x) = sf_u.value [L26] return x; VAL [\old(x)=61, \result=60, ix=49, x=60] [L48] RET, EXPR fabs_float(x) [L48] float res = fabs_float(x); [L51] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=60, res == 0.0f && __signbit_float(res) == 0=0, x=61] [L51] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L52] reach_error() VAL [res=60, x=61] - 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. - UnprovableResult [Line: 41]: 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, 41 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 67 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 122 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-10-15 16:45:43,733 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...