./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/StructInitialization.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer --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 0.2.0-a4ecdab [2020-11-28 03:14:38,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:14:38,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:14:39,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:14:39,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:14:39,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:14:39,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:14:39,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:14:39,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:14:39,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:14:39,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:14:39,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:14:39,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:14:39,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:14:39,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:14:39,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:14:39,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:14:39,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:14:39,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:14:39,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:14:39,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:14:39,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:14:39,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:14:39,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:14:39,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:14:39,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:14:39,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:14:39,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:14:39,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:14:39,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:14:39,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:14:39,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:14:39,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:14:39,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:14:39,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:14:39,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:14:39,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:14:39,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:14:39,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:14:39,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:14:39,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:14:39,111 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 03:14:39,136 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:14:39,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:14:39,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:14:39,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:14:39,138 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:14:39,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:14:39,138 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:14:39,138 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:14:39,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:14:39,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:14:39,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:14:39,139 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:14:39,139 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:14:39,139 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:14:39,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:14:39,140 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:14:39,140 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:14:39,140 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:14:39,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:14:39,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:14:39,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:14:39,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:14:39,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:39,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:14:39,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:14:39,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:14:39,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:14:39,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:14:39,143 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:/tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09aab7ee021274328a236afeda27749aba561ee0 [2020-11-28 03:14:39,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:14:39,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:14:39,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:14:39,443 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:14:39,444 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:14:39,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/StructInitialization.c [2020-11-28 03:14:39,523 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer/data/a6d20ed80/accc00b65a404b3abca909db78bca847/FLAG3568d7152 [2020-11-28 03:14:39,953 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:14:39,953 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/sv-benchmarks/c/ldv-memsafety/StructInitialization.c [2020-11-28 03:14:39,965 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer/data/a6d20ed80/accc00b65a404b3abca909db78bca847/FLAG3568d7152 [2020-11-28 03:14:40,357 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer/data/a6d20ed80/accc00b65a404b3abca909db78bca847 [2020-11-28 03:14:40,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:14:40,361 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:14:40,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:40,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:14:40,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:14:40,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:40" (1/1) ... [2020-11-28 03:14:40,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@214cf9e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:40, skipping insertion in model container [2020-11-28 03:14:40,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:40" (1/1) ... [2020-11-28 03:14:40,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:14:40,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:14:40,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:40,597 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:14:40,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:40,659 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:14:40,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:40 WrapperNode [2020-11-28 03:14:40,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:40,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:14:40,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:14:40,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:14:40,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:40" (1/1) ... [2020-11-28 03:14:40,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:40" (1/1) ... [2020-11-28 03:14:40,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:40" (1/1) ... [2020-11-28 03:14:40,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:40" (1/1) ... [2020-11-28 03:14:40,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:40" (1/1) ... [2020-11-28 03:14:40,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:40" (1/1) ... [2020-11-28 03:14:40,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:40" (1/1) ... [2020-11-28 03:14:40,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:14:40,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:14:40,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:14:40,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:14:40,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:40,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:14:40,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:14:40,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:14:40,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:14:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:14:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:14:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:14:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:14:41,007 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:14:41,007 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-28 03:14:41,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:41 BoogieIcfgContainer [2020-11-28 03:14:41,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:14:41,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:14:41,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:14:41,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:14:41,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:14:40" (1/3) ... [2020-11-28 03:14:41,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464c7576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:41, skipping insertion in model container [2020-11-28 03:14:41,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:40" (2/3) ... [2020-11-28 03:14:41,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464c7576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:41, skipping insertion in model container [2020-11-28 03:14:41,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:41" (3/3) ... [2020-11-28 03:14:41,038 INFO L111 eAbstractionObserver]: Analyzing ICFG StructInitialization.c [2020-11-28 03:14:41,061 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:14:41,065 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:14:41,096 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:14:41,117 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:14:41,118 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:14:41,118 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:14:41,118 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:14:41,118 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:14:41,119 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:14:41,119 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:14:41,119 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:14:41,132 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-11-28 03:14:41,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:14:41,140 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:41,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:41,142 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:14:41,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:41,148 INFO L82 PathProgramCache]: Analyzing trace with hash 254106603, now seen corresponding path program 1 times [2020-11-28 03:14:41,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:41,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764533416] [2020-11-28 03:14:41,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:41,569 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-11-28 03:14:41,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:41,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764533416] [2020-11-28 03:14:41,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:41,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:14:41,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672211900] [2020-11-28 03:14:41,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:41,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:41,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:41,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:41,676 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2020-11-28 03:14:41,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:41,723 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-11-28 03:14:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:41,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-28 03:14:41,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:41,731 INFO L225 Difference]: With dead ends: 10 [2020-11-28 03:14:41,731 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:14:41,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:41,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:14:41,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:14:41,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:14:41,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:14:41,757 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-11-28 03:14:41,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:41,758 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:14:41,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:14:41,758 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:14:41,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:14:41,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:14:41,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:14:41 BoogieIcfgContainer [2020-11-28 03:14:41,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:14:41,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:14:41,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:14:41,764 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:14:41,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:41" (3/4) ... [2020-11-28 03:14:41,768 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:14:41,782 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-11-28 03:14:41,782 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-11-28 03:14:41,787 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2020-11-28 03:14:41,789 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 03:14:41,789 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:14:41,790 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:14:41,790 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:14:41,791 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:14:41,828 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9e98b9ae-fadc-470f-8e5b-4233f272ff18/bin/uautomizer/witness.graphml [2020-11-28 03:14:41,829 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:14:41,831 INFO L168 Benchmark]: Toolchain (without parser) took 1469.07 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 68.7 MB in the beginning and 89.3 MB in the end (delta: -20.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:41,831 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 96.5 MB. Free memory is still 53.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:14:41,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.02 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 68.4 MB in the beginning and 99.2 MB in the end (delta: -30.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:41,836 INFO L168 Benchmark]: Boogie Preprocessor took 58.25 ms. Allocated memory is still 121.6 MB. Free memory was 99.2 MB in the beginning and 97.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:41,837 INFO L168 Benchmark]: RCFGBuilder took 293.73 ms. Allocated memory is still 121.6 MB. Free memory was 97.1 MB in the beginning and 84.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:41,843 INFO L168 Benchmark]: TraceAbstraction took 746.24 ms. Allocated memory is still 121.6 MB. Free memory was 84.0 MB in the beginning and 92.0 MB in the end (delta: -8.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:14:41,844 INFO L168 Benchmark]: Witness Printer took 65.25 ms. Allocated memory is still 121.6 MB. Free memory was 92.0 MB in the beginning and 89.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:41,850 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 96.5 MB. Free memory is still 53.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.02 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 68.4 MB in the beginning and 99.2 MB in the end (delta: -30.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.25 ms. Allocated memory is still 121.6 MB. Free memory was 99.2 MB in the beginning and 97.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 293.73 ms. Allocated memory is still 121.6 MB. Free memory was 97.1 MB in the beginning and 84.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 746.24 ms. Allocated memory is still 121.6 MB. Free memory was 84.0 MB in the beginning and 92.0 MB in the end (delta: -8.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 65.25 ms. Allocated memory is still 121.6 MB. Free memory was 92.0 MB in the beginning and 89.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 630 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...