./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/StructInitialization.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/StructInitialization.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 09aab7ee021274328a236afeda27749aba561ee0 ................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:02:27,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:02:27,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:02:27,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:02:27,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:02:27,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:02:27,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:02:27,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:02:27,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:02:27,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:02:27,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:02:27,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:02:27,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:02:27,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:02:27,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:02:27,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:02:27,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:02:27,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:02:27,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:02:27,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:02:27,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:02:27,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:02:27,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:02:27,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:02:27,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:02:27,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:02:27,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:02:27,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:02:27,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:02:27,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:02:27,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:02:27,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:02:27,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:02:27,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:02:27,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:02:27,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:02:27,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:02:27,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:02:27,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:02:27,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:02:27,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:02:27,104 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:02:27,132 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:02:27,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:02:27,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:02:27,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:02:27,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:02:27,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:02:27,135 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:02:27,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:02:27,135 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:02:27,135 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:02:27,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:02:27,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:02:27,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:02:27,136 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:02:27,137 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:02:27,137 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:02:27,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:02:27,137 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:02:27,137 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:02:27,137 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:02:27,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:02:27,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:02:27,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:02:27,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:02:27,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:02:27,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:02:27,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:02:27,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:02:27,138 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:02:27,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09aab7ee021274328a236afeda27749aba561ee0 [2021-08-27 06:02:27,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:02:27,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:02:27,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:02:27,382 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:02:27,383 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:02:27,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/StructInitialization.c [2021-08-27 06:02:27,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d52f15454/fb25e89fa217401585eaa285daef40d2/FLAG611d7fca1 [2021-08-27 06:02:27,745 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:02:27,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/StructInitialization.c [2021-08-27 06:02:27,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d52f15454/fb25e89fa217401585eaa285daef40d2/FLAG611d7fca1 [2021-08-27 06:02:28,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d52f15454/fb25e89fa217401585eaa285daef40d2 [2021-08-27 06:02:28,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:02:28,202 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:02:28,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:02:28,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:02:28,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:02:28,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:02:28" (1/1) ... [2021-08-27 06:02:28,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32d2adc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:28, skipping insertion in model container [2021-08-27 06:02:28,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:02:28" (1/1) ... [2021-08-27 06:02:28,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:02:28,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:02:28,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:02:28,337 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:02:28,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:02:28,383 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:02:28,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:28 WrapperNode [2021-08-27 06:02:28,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:02:28,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:02:28,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:02:28,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:02:28,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:28" (1/1) ... [2021-08-27 06:02:28,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:28" (1/1) ... [2021-08-27 06:02:28,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:28" (1/1) ... [2021-08-27 06:02:28,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:28" (1/1) ... [2021-08-27 06:02:28,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:28" (1/1) ... [2021-08-27 06:02:28,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:28" (1/1) ... [2021-08-27 06:02:28,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:28" (1/1) ... [2021-08-27 06:02:28,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:02:28,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:02:28,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:02:28,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:02:28,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:28" (1/1) ... [2021-08-27 06:02:28,445 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:02:28,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:02:28,461 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) [2021-08-27 06:02:28,477 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 [2021-08-27 06:02:28,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:02:28,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:02:28,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:02:28,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:02:28,502 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:02:28,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:02:28,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:02:28,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:02:28,735 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:02:28,735 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-27 06:02:28,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:02:28 BoogieIcfgContainer [2021-08-27 06:02:28,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:02:28,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:02:28,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:02:28,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:02:28,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:02:28" (1/3) ... [2021-08-27 06:02:28,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523e0c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:02:28, skipping insertion in model container [2021-08-27 06:02:28,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:28" (2/3) ... [2021-08-27 06:02:28,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523e0c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:02:28, skipping insertion in model container [2021-08-27 06:02:28,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:02:28" (3/3) ... [2021-08-27 06:02:28,743 INFO L111 eAbstractionObserver]: Analyzing ICFG StructInitialization.c [2021-08-27 06:02:28,747 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:02:28,747 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-27 06:02:28,784 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:02:28,791 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 06:02:28,791 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-27 06:02:28,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 5 states have (on average 1.2) internal successors, (6), 6 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 06:02:28,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 06:02:28,810 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:02:28,810 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:02:28,811 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK] === [2021-08-27 06:02:28,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:02:28,815 INFO L82 PathProgramCache]: Analyzing trace with hash 254106603, now seen corresponding path program 1 times [2021-08-27 06:02:28,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 06:02:28,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141767231] [2021-08-27 06:02:28,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:02:28,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 06:02:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:02:29,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 06:02:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:02:29,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:02:29,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 06:02:29,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141767231] [2021-08-27 06:02:29,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141767231] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 06:02:29,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:02:29,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 06:02:29,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127663964] [2021-08-27 06:02:29,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:02:29,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 06:02:29,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:02:29,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:02:29,225 INFO L87 Difference]: Start difference. First operand has 11 states, 5 states have (on average 1.2) internal successors, (6), 6 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 06:02:29,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:02:29,258 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2021-08-27 06:02:29,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:02:29,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-08-27 06:02:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:02:29,265 INFO L225 Difference]: With dead ends: 10 [2021-08-27 06:02:29,266 INFO L226 Difference]: Without dead ends: 0 [2021-08-27 06:02:29,267 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 196.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:02:29,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-27 06:02:29,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-27 06:02:29,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 06:02:29,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 06:02:29,280 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-08-27 06:02:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:02:29,280 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 06:02:29,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 06:02:29,281 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-27 06:02:29,281 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-27 06:02:29,283 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:02:29,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 06:02:29,286 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:02:29,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:02:29 BoogieIcfgContainer [2021-08-27 06:02:29,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:02:29,289 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:02:29,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:02:29,290 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:02:29,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:02:28" (3/4) ... [2021-08-27 06:02:29,292 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-27 06:02:29,296 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2021-08-27 06:02:29,297 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2021-08-27 06:02:29,301 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-08-27 06:02:29,301 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-08-27 06:02:29,301 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-27 06:02:29,301 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-27 06:02:29,301 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-27 06:02:29,301 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-27 06:02:29,317 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 06:02:29,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:02:29,319 INFO L168 Benchmark]: Toolchain (without parser) took 1116.61 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 34.9 MB in the beginning and 32.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2021-08-27 06:02:29,319 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 56.6 MB. Free memory was 37.9 MB in the beginning and 37.9 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:02:29,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.98 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 39.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:02:29,320 INFO L168 Benchmark]: Boogie Preprocessor took 51.35 ms. Allocated memory is still 56.6 MB. Free memory was 39.9 MB in the beginning and 37.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:02:29,321 INFO L168 Benchmark]: RCFGBuilder took 300.40 ms. Allocated memory is still 56.6 MB. Free memory was 37.7 MB in the beginning and 25.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:02:29,321 INFO L168 Benchmark]: TraceAbstraction took 550.41 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 24.5 MB in the beginning and 34.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:02:29,322 INFO L168 Benchmark]: Witness Printer took 28.39 ms. Allocated memory is still 75.5 MB. Free memory was 34.5 MB in the beginning and 32.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:02:29,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 56.6 MB. Free memory was 37.9 MB in the beginning and 37.9 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 179.98 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 39.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.35 ms. Allocated memory is still 56.6 MB. Free memory was 39.9 MB in the beginning and 37.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 300.40 ms. Allocated memory is still 56.6 MB. Free memory was 37.7 MB in the beginning and 25.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 550.41 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 24.5 MB in the beginning and 34.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * Witness Printer took 28.39 ms. Allocated memory is still 75.5 MB. Free memory was 34.5 MB in the beginning and 32.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 93]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 503.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 11.5ms, AutomataDifference: 49.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 196.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.5ms SsaConstructionTime, 57.2ms SatisfiabilityAnalysisTime, 272.6ms InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-27 06:02:29,351 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...