./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa779df617b83bdc7632b93a3c3bc0bbfee71559 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:25:30,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:30,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:30,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:30,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:30,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:30,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:30,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:30,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:30,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:30,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:30,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:30,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:30,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:30,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:30,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:30,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:30,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:30,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:30,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:30,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:30,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:30,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:30,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:30,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:30,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:30,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:30,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:30,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:30,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:30,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:30,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:30,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:30,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:30,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:30,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:30,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:30,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:30,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:30,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:30,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:30,548 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-11 02:25:30,588 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:30,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:30,590 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:30,596 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:30,597 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:30,597 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:30,597 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:25:30,597 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:30,598 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:30,598 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:25:30,599 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:25:30,599 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:30,599 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:25:30,600 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:25:30,600 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:25:30,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:25:30,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:25:30,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:30,601 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:30,602 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:25:30,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:25:30,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:30,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:30,602 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:25:30,603 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:25:30,603 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:25:30,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:30,605 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:30,606 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:30,606 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:30,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:30,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:30,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:30,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:30,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:30,607 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:25:30,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:25:30,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:30,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:30,608 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa779df617b83bdc7632b93a3c3bc0bbfee71559 [2021-10-11 02:25:30,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:30,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:30,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:30,892 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:30,895 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:30,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i [2021-10-11 02:25:30,985 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI/data/d14ba6b83/a8b27326104c4d2d813ca57f7fd24241/FLAG47bec2765 [2021-10-11 02:25:31,517 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:31,518 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/sv-benchmarks/c/list-ext-properties/test-0158_1-1.i [2021-10-11 02:25:31,536 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI/data/d14ba6b83/a8b27326104c4d2d813ca57f7fd24241/FLAG47bec2765 [2021-10-11 02:25:31,847 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI/data/d14ba6b83/a8b27326104c4d2d813ca57f7fd24241 [2021-10-11 02:25:31,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:31,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:31,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:31,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:31,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:31,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:31" (1/1) ... [2021-10-11 02:25:31,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c08bf4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:31, skipping insertion in model container [2021-10-11 02:25:31,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:31" (1/1) ... [2021-10-11 02:25:31,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:31,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:32,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:32,233 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:32,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:32,376 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:32,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:32 WrapperNode [2021-10-11 02:25:32,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:32,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:32,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:32,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:32,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:32" (1/1) ... [2021-10-11 02:25:32,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:32" (1/1) ... [2021-10-11 02:25:32,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:32,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:32,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:32,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:32,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:32" (1/1) ... [2021-10-11 02:25:32,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:32" (1/1) ... [2021-10-11 02:25:32,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:32" (1/1) ... [2021-10-11 02:25:32,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:32" (1/1) ... [2021-10-11 02:25:32,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:32" (1/1) ... [2021-10-11 02:25:32,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:32" (1/1) ... [2021-10-11 02:25:32,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:32" (1/1) ... [2021-10-11 02:25:32,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:32,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:32,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:32,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:32,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:32" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:25:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:25:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:25:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:25:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-11 02:25:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-11 02:25:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:25:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:25:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:32,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:32,919 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:32,919 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:25:32,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:32 BoogieIcfgContainer [2021-10-11 02:25:32,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:32,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:32,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:32,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:32,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:31" (1/3) ... [2021-10-11 02:25:32,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ec85c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:32, skipping insertion in model container [2021-10-11 02:25:32,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:32" (2/3) ... [2021-10-11 02:25:32,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ec85c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:32, skipping insertion in model container [2021-10-11 02:25:32,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:32" (3/3) ... [2021-10-11 02:25:32,944 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-1.i [2021-10-11 02:25:32,957 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:32,974 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2021-10-11 02:25:32,996 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-10-11 02:25:33,045 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:33,045 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:25:33,045 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:33,045 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:33,045 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:33,046 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:33,046 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:33,046 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:33,067 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2021-10-11 02:25:33,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:25:33,072 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:33,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:25:33,073 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 02:25:33,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:33,083 INFO L82 PathProgramCache]: Analyzing trace with hash 2329, now seen corresponding path program 1 times [2021-10-11 02:25:33,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:33,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711356601] [2021-10-11 02:25:33,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:33,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:33,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711356601] [2021-10-11 02:25:33,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:33,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:25:33,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191339445] [2021-10-11 02:25:33,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:33,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:33,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:33,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:33,361 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2021-10-11 02:25:33,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:33,412 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2021-10-11 02:25:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:33,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2021-10-11 02:25:33,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:33,422 INFO L225 Difference]: With dead ends: 24 [2021-10-11 02:25:33,422 INFO L226 Difference]: Without dead ends: 23 [2021-10-11 02:25:33,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:33,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-11 02:25:33,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-11 02:25:33,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 02:25:33,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-10-11 02:25:33,453 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 2 [2021-10-11 02:25:33,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:33,454 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-11 02:25:33,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:33,454 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-10-11 02:25:33,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:25:33,455 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:33,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:25:33,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:25:33,455 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 02:25:33,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:33,456 INFO L82 PathProgramCache]: Analyzing trace with hash 2330, now seen corresponding path program 1 times [2021-10-11 02:25:33,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:33,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031379410] [2021-10-11 02:25:33,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:33,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:33,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031379410] [2021-10-11 02:25:33,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:33,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:25:33,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203055328] [2021-10-11 02:25:33,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:33,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:33,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:33,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:33,508 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 3 states. [2021-10-11 02:25:33,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:33,535 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-11 02:25:33,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:33,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2021-10-11 02:25:33,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:33,536 INFO L225 Difference]: With dead ends: 17 [2021-10-11 02:25:33,536 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 02:25:33,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:33,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 02:25:33,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-11 02:25:33,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-11 02:25:33,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-11 02:25:33,540 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 2 [2021-10-11 02:25:33,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:33,541 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-11 02:25:33,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:33,541 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-11 02:25:33,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:25:33,542 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:33,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:33,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:25:33,542 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 02:25:33,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:33,543 INFO L82 PathProgramCache]: Analyzing trace with hash 4745073, now seen corresponding path program 1 times [2021-10-11 02:25:33,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:33,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251453507] [2021-10-11 02:25:33,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:33,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:33,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251453507] [2021-10-11 02:25:33,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:33,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:33,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517115035] [2021-10-11 02:25:33,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:33,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:33,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:33,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:33,680 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2021-10-11 02:25:33,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:33,730 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-10-11 02:25:33,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:33,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2021-10-11 02:25:33,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:33,732 INFO L225 Difference]: With dead ends: 16 [2021-10-11 02:25:33,732 INFO L226 Difference]: Without dead ends: 16 [2021-10-11 02:25:33,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:25:33,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-11 02:25:33,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-11 02:25:33,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 02:25:33,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-10-11 02:25:33,736 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2021-10-11 02:25:33,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:33,736 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-11 02:25:33,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:33,736 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-11 02:25:33,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:25:33,737 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:33,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:33,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:25:33,738 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 02:25:33,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:33,738 INFO L82 PathProgramCache]: Analyzing trace with hash 147097330, now seen corresponding path program 1 times [2021-10-11 02:25:33,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:33,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691911452] [2021-10-11 02:25:33,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:33,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:33,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691911452] [2021-10-11 02:25:33,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:33,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:33,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677084709] [2021-10-11 02:25:33,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:33,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:33,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:33,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:33,802 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 5 states. [2021-10-11 02:25:33,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:33,853 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-11 02:25:33,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:33,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-10-11 02:25:33,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:33,854 INFO L225 Difference]: With dead ends: 15 [2021-10-11 02:25:33,855 INFO L226 Difference]: Without dead ends: 15 [2021-10-11 02:25:33,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:25:33,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-11 02:25:33,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-11 02:25:33,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-11 02:25:33,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-11 02:25:33,858 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2021-10-11 02:25:33,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:33,858 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-11 02:25:33,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:33,859 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-10-11 02:25:33,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:25:33,859 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:33,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:33,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:25:33,860 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 02:25:33,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:33,861 INFO L82 PathProgramCache]: Analyzing trace with hash 265050003, now seen corresponding path program 1 times [2021-10-11 02:25:33,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:33,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472445292] [2021-10-11 02:25:33,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:33,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:33,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472445292] [2021-10-11 02:25:33,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:33,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:33,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624324751] [2021-10-11 02:25:33,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:33,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:33,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:33,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:33,916 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 5 states. [2021-10-11 02:25:33,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:33,962 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2021-10-11 02:25:33,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:33,962 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-10-11 02:25:33,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:33,963 INFO L225 Difference]: With dead ends: 14 [2021-10-11 02:25:33,963 INFO L226 Difference]: Without dead ends: 14 [2021-10-11 02:25:33,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:25:33,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-11 02:25:33,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-11 02:25:33,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-11 02:25:33,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-10-11 02:25:33,966 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2021-10-11 02:25:33,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:33,967 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-10-11 02:25:33,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:33,967 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-10-11 02:25:33,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:25:33,968 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:33,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:33,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:25:33,968 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 02:25:33,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:33,969 INFO L82 PathProgramCache]: Analyzing trace with hash -373384427, now seen corresponding path program 1 times [2021-10-11 02:25:33,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:33,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235570696] [2021-10-11 02:25:33,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:34,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235570696] [2021-10-11 02:25:34,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:34,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:25:34,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516664835] [2021-10-11 02:25:34,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:25:34,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:34,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:25:34,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:34,199 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 6 states. [2021-10-11 02:25:34,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:34,344 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-10-11 02:25:34,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:25:34,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2021-10-11 02:25:34,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:34,345 INFO L225 Difference]: With dead ends: 13 [2021-10-11 02:25:34,346 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:25:34,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:25:34,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:25:34,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:25:34,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:25:34,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:25:34,354 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-11 02:25:34,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:34,354 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:25:34,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:25:34,355 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:25:34,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:25:34,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:25:34,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:25:34 BoogieIcfgContainer [2021-10-11 02:25:34,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:25:34,362 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:25:34,362 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:25:34,362 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:25:34,363 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:32" (3/4) ... [2021-10-11 02:25:34,366 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:25:34,377 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 02:25:34,377 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:25:34,377 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:25:34,377 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:25:34,410 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d01990-2d5c-4799-916b-08cfcc16321e/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:25:34,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:25:34,412 INFO L168 Benchmark]: Toolchain (without parser) took 2560.15 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 55.8 MB in the beginning and 103.0 MB in the end (delta: -47.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:34,412 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:34,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.15 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 55.6 MB in the beginning and 96.0 MB in the end (delta: -40.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:34,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.80 ms. Allocated memory is still 132.1 MB. Free memory was 96.0 MB in the beginning and 94.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:34,414 INFO L168 Benchmark]: Boogie Preprocessor took 26.47 ms. Allocated memory is still 132.1 MB. Free memory was 94.7 MB in the beginning and 93.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:34,415 INFO L168 Benchmark]: RCFGBuilder took 473.94 ms. Allocated memory is still 132.1 MB. Free memory was 93.3 MB in the beginning and 72.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:34,415 INFO L168 Benchmark]: TraceAbstraction took 1436.95 ms. Allocated memory is still 132.1 MB. Free memory was 71.6 MB in the beginning and 106.1 MB in the end (delta: -34.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:34,416 INFO L168 Benchmark]: Witness Printer took 48.77 ms. Allocated memory is still 132.1 MB. Free memory was 105.1 MB in the beginning and 103.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:34,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 525.15 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 55.6 MB in the beginning and 96.0 MB in the end (delta: -40.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.80 ms. Allocated memory is still 132.1 MB. Free memory was 96.0 MB in the beginning and 94.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.47 ms. Allocated memory is still 132.1 MB. Free memory was 94.7 MB in the beginning and 93.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 473.94 ms. Allocated memory is still 132.1 MB. Free memory was 93.3 MB in the beginning and 72.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1436.95 ms. Allocated memory is still 132.1 MB. Free memory was 71.6 MB in the beginning and 106.1 MB in the end (delta: -34.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 48.77 ms. Allocated memory is still 132.1 MB. Free memory was 105.1 MB in the beginning and 103.0 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: - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 538]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 536]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 536]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 538]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 106 SDslu, 26 SDs, 0 SdLazy, 107 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 5036 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...