./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/bin-2019/utaipan --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 d5ace2e0a5233a1a069e0f7fcf08b00fb84e1f6e ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 22:39:22,952 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 22:39:22,953 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 22:39:22,961 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 22:39:22,962 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 22:39:22,962 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 22:39:22,963 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 22:39:22,965 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 22:39:22,966 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 22:39:22,967 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 22:39:22,967 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 22:39:22,968 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 22:39:22,968 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 22:39:22,969 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 22:39:22,970 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 22:39:22,970 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 22:39:22,971 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 22:39:22,972 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 22:39:22,974 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 22:39:22,975 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 22:39:22,976 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 22:39:22,977 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 22:39:22,978 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 22:39:22,978 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 22:39:22,978 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 22:39:22,978 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 22:39:22,979 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 22:39:22,979 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 22:39:22,980 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 22:39:22,980 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 22:39:22,980 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 22:39:22,981 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 22:39:22,981 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 22:39:22,981 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 22:39:22,981 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 22:39:22,982 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 22:39:22,982 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-01 22:39:22,989 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 22:39:22,990 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 22:39:22,990 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 22:39:22,990 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 22:39:22,990 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-01 22:39:22,990 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-01 22:39:22,990 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-01 22:39:22,990 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-01 22:39:22,991 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-01 22:39:22,991 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-01 22:39:22,991 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-01 22:39:22,991 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-01 22:39:22,991 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-01 22:39:22,991 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 22:39:22,991 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 22:39:22,991 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 22:39:22,992 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 22:39:22,992 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 22:39:22,992 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 22:39:22,992 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 22:39:22,992 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 22:39:22,992 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-01 22:39:22,992 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-01 22:39:22,992 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-01 22:39:22,992 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 22:39:22,992 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 22:39:22,992 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 22:39:22,992 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 22:39:22,993 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 22:39:22,993 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 22:39:22,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 22:39:22,993 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 22:39:22,993 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 22:39:22,993 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-01 22:39:22,993 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 22:39:22,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 22:39:22,993 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/bin-2019/utaipan 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 -> d5ace2e0a5233a1a069e0f7fcf08b00fb84e1f6e [2018-12-01 22:39:23,011 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 22:39:23,017 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 22:39:23,019 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 22:39:23,020 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 22:39:23,020 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 22:39:23,021 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/bin-2019/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test20_true-valid-memsafety_true-termination.i [2018-12-01 22:39:23,054 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/bin-2019/utaipan/data/126ce168b/bd89203c8f88456eb16186712eb4772f/FLAGf18058511 [2018-12-01 22:39:23,361 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 22:39:23,361 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/sv-benchmarks/c/ldv-memsafety/memleaks_test20_true-valid-memsafety_true-termination.i [2018-12-01 22:39:23,368 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/bin-2019/utaipan/data/126ce168b/bd89203c8f88456eb16186712eb4772f/FLAGf18058511 [2018-12-01 22:39:23,376 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/bin-2019/utaipan/data/126ce168b/bd89203c8f88456eb16186712eb4772f [2018-12-01 22:39:23,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 22:39:23,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 22:39:23,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 22:39:23,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 22:39:23,381 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 22:39:23,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:39:23" (1/1) ... [2018-12-01 22:39:23,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142c46d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:39:23, skipping insertion in model container [2018-12-01 22:39:23,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:39:23" (1/1) ... [2018-12-01 22:39:23,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 22:39:23,409 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 22:39:23,630 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:39:23,639 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 22:39:23,674 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:39:23,708 INFO L195 MainTranslator]: Completed translation [2018-12-01 22:39:23,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:39:23 WrapperNode [2018-12-01 22:39:23,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 22:39:23,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 22:39:23,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 22:39:23,709 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 22:39:23,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:39:23" (1/1) ... [2018-12-01 22:39:23,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:39:23" (1/1) ... [2018-12-01 22:39:23,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 22:39:23,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 22:39:23,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 22:39:23,731 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 22:39:23,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:39:23" (1/1) ... [2018-12-01 22:39:23,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:39:23" (1/1) ... [2018-12-01 22:39:23,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:39:23" (1/1) ... [2018-12-01 22:39:23,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:39:23" (1/1) ... [2018-12-01 22:39:23,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:39:23" (1/1) ... [2018-12-01 22:39:23,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:39:23" (1/1) ... [2018-12-01 22:39:23,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:39:23" (1/1) ... [2018-12-01 22:39:23,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 22:39:23,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 22:39:23,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 22:39:23,747 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 22:39:23,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:39:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/bin-2019/utaipan/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 [2018-12-01 22:39:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_device [2018-12-01 22:39:23,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_device [2018-12-01 22:39:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 22:39:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-12-01 22:39:23,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-12-01 22:39:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 22:39:23,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 22:39:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_20 [2018-12-01 22:39:23,780 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_20 [2018-12-01 22:39:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 22:39:23,780 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 22:39:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_device [2018-12-01 22:39:23,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_device [2018-12-01 22:39:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 22:39:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-01 22:39:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-12-01 22:39:23,781 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-12-01 22:39:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure free_20 [2018-12-01 22:39:23,781 INFO L138 BoogieDeclarations]: Found implementation of procedure free_20 [2018-12-01 22:39:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 22:39:23,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 22:39:23,905 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 22:39:23,906 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-01 22:39:23,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:39:23 BoogieIcfgContainer [2018-12-01 22:39:23,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 22:39:23,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 22:39:23,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 22:39:23,910 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 22:39:23,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 10:39:23" (1/3) ... [2018-12-01 22:39:23,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1e8d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:39:23, skipping insertion in model container [2018-12-01 22:39:23,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:39:23" (2/3) ... [2018-12-01 22:39:23,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1e8d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:39:23, skipping insertion in model container [2018-12-01 22:39:23,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:39:23" (3/3) ... [2018-12-01 22:39:23,912 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test20_true-valid-memsafety_true-termination.i [2018-12-01 22:39:23,919 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 22:39:23,923 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-01 22:39:23,932 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-01 22:39:23,950 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 22:39:23,951 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-01 22:39:23,951 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 22:39:23,951 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 22:39:23,951 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 22:39:23,951 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 22:39:23,951 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 22:39:23,951 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 22:39:23,962 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-12-01 22:39:23,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-01 22:39:23,967 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:39:23,968 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:39:23,969 INFO L423 AbstractCegarLoop]: === Iteration 1 === [free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-01 22:39:23,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:39:23,973 INFO L82 PathProgramCache]: Analyzing trace with hash 205795401, now seen corresponding path program 1 times [2018-12-01 22:39:23,974 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:39:24,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:39:24,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:39:24,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:39:24,006 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:39:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:39:24,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:39:24,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:39:24,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 22:39:24,098 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:39:24,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 22:39:24,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 22:39:24,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 22:39:24,113 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 5 states. [2018-12-01 22:39:24,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:39:24,142 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2018-12-01 22:39:24,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 22:39:24,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-12-01 22:39:24,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:39:24,150 INFO L225 Difference]: With dead ends: 48 [2018-12-01 22:39:24,150 INFO L226 Difference]: Without dead ends: 45 [2018-12-01 22:39:24,151 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 22:39:24,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-01 22:39:24,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2018-12-01 22:39:24,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-01 22:39:24,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2018-12-01 22:39:24,176 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 24 [2018-12-01 22:39:24,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:39:24,177 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2018-12-01 22:39:24,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 22:39:24,177 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-12-01 22:39:24,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-01 22:39:24,177 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:39:24,177 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:39:24,178 INFO L423 AbstractCegarLoop]: === Iteration 2 === [free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-01 22:39:24,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:39:24,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1713347210, now seen corresponding path program 1 times [2018-12-01 22:39:24,178 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:39:24,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:39:24,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:39:24,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:39:24,179 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:39:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:39:24,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:39:24,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:39:24,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 22:39:24,250 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:39:24,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 22:39:24,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 22:39:24,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-01 22:39:24,252 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 7 states. [2018-12-01 22:39:24,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:39:24,410 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2018-12-01 22:39:24,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-01 22:39:24,411 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-01 22:39:24,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:39:24,411 INFO L225 Difference]: With dead ends: 58 [2018-12-01 22:39:24,411 INFO L226 Difference]: Without dead ends: 58 [2018-12-01 22:39:24,412 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-01 22:39:24,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-12-01 22:39:24,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 53. [2018-12-01 22:39:24,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-12-01 22:39:24,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2018-12-01 22:39:24,416 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 24 [2018-12-01 22:39:24,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:39:24,416 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2018-12-01 22:39:24,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 22:39:24,416 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2018-12-01 22:39:24,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-01 22:39:24,417 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:39:24,417 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:39:24,417 INFO L423 AbstractCegarLoop]: === Iteration 3 === [free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-01 22:39:24,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:39:24,417 INFO L82 PathProgramCache]: Analyzing trace with hash -2003892250, now seen corresponding path program 1 times [2018-12-01 22:39:24,417 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:39:24,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:39:24,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:39:24,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:39:24,418 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:39:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:39:24,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:39:24,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:39:24,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-01 22:39:24,521 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:39:24,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-01 22:39:24,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-01 22:39:24,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-01 22:39:24,522 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 11 states. [2018-12-01 22:39:24,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:39:24,627 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2018-12-01 22:39:24,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-01 22:39:24,628 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 28 [2018-12-01 22:39:24,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:39:24,629 INFO L225 Difference]: With dead ends: 53 [2018-12-01 22:39:24,629 INFO L226 Difference]: Without dead ends: 53 [2018-12-01 22:39:24,629 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2018-12-01 22:39:24,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-01 22:39:24,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2018-12-01 22:39:24,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-01 22:39:24,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2018-12-01 22:39:24,633 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 28 [2018-12-01 22:39:24,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:39:24,633 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2018-12-01 22:39:24,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-01 22:39:24,633 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2018-12-01 22:39:24,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 22:39:24,634 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:39:24,634 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:39:24,634 INFO L423 AbstractCegarLoop]: === Iteration 4 === [free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-01 22:39:24,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:39:24,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1991117550, now seen corresponding path program 1 times [2018-12-01 22:39:24,634 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:39:24,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:39:24,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:39:24,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:39:24,636 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:39:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:39:24,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:39:24,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:39:24,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-01 22:39:24,713 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:39:24,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-01 22:39:24,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-01 22:39:24,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-01 22:39:24,713 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 11 states. [2018-12-01 22:39:24,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:39:24,841 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2018-12-01 22:39:24,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-01 22:39:24,841 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2018-12-01 22:39:24,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:39:24,842 INFO L225 Difference]: With dead ends: 64 [2018-12-01 22:39:24,842 INFO L226 Difference]: Without dead ends: 64 [2018-12-01 22:39:24,842 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2018-12-01 22:39:24,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-12-01 22:39:24,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-12-01 22:39:24,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-12-01 22:39:24,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-12-01 22:39:24,847 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 29 [2018-12-01 22:39:24,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:39:24,847 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-12-01 22:39:24,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-01 22:39:24,847 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-12-01 22:39:24,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 22:39:24,848 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:39:24,848 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:39:24,848 INFO L423 AbstractCegarLoop]: === Iteration 5 === [free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-01 22:39:24,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:39:24,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1895025521, now seen corresponding path program 1 times [2018-12-01 22:39:24,849 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:39:24,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:39:24,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:39:24,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:39:24,850 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:39:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:39:24,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:39:24,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:39:24,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 22:39:24,878 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:39:24,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 22:39:24,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 22:39:24,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 22:39:24,879 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 5 states. [2018-12-01 22:39:24,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:39:24,887 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-12-01 22:39:24,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 22:39:24,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-12-01 22:39:24,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:39:24,888 INFO L225 Difference]: With dead ends: 51 [2018-12-01 22:39:24,888 INFO L226 Difference]: Without dead ends: 51 [2018-12-01 22:39:24,888 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 22:39:24,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-01 22:39:24,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-12-01 22:39:24,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-01 22:39:24,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-12-01 22:39:24,891 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 29 [2018-12-01 22:39:24,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:39:24,891 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-12-01 22:39:24,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 22:39:24,891 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-12-01 22:39:24,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 22:39:24,892 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:39:24,892 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:39:24,892 INFO L423 AbstractCegarLoop]: === Iteration 6 === [free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-01 22:39:24,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:39:24,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1748662880, now seen corresponding path program 1 times [2018-12-01 22:39:24,892 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:39:24,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:39:24,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:39:24,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:39:24,893 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:39:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:39:24,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:39:24,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:39:24,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 22:39:24,910 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:39:24,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 22:39:24,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 22:39:24,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 22:39:24,910 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 3 states. [2018-12-01 22:39:24,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:39:24,936 INFO L93 Difference]: Finished difference Result 55 states and 54 transitions. [2018-12-01 22:39:24,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 22:39:24,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-12-01 22:39:24,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:39:24,937 INFO L225 Difference]: With dead ends: 55 [2018-12-01 22:39:24,937 INFO L226 Difference]: Without dead ends: 36 [2018-12-01 22:39:24,937 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 22:39:24,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-01 22:39:24,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-12-01 22:39:24,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-01 22:39:24,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 35 transitions. [2018-12-01 22:39:24,940 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 35 transitions. Word has length 29 [2018-12-01 22:39:24,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:39:24,940 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 35 transitions. [2018-12-01 22:39:24,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 22:39:24,940 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 35 transitions. [2018-12-01 22:39:24,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-01 22:39:24,941 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:39:24,941 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:39:24,941 INFO L423 AbstractCegarLoop]: === Iteration 7 === [free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-01 22:39:24,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:39:24,941 INFO L82 PathProgramCache]: Analyzing trace with hash 49203072, now seen corresponding path program 1 times [2018-12-01 22:39:24,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:39:24,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:39:24,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:39:24,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:39:24,942 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:39:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:39:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:39:25,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:39:25,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-01 22:39:25,076 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:39:25,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-01 22:39:25,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-01 22:39:25,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-12-01 22:39:25,077 INFO L87 Difference]: Start difference. First operand 36 states and 35 transitions. Second operand 13 states. [2018-12-01 22:39:25,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:39:25,244 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2018-12-01 22:39:25,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-01 22:39:25,245 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 35 [2018-12-01 22:39:25,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:39:25,245 INFO L225 Difference]: With dead ends: 35 [2018-12-01 22:39:25,245 INFO L226 Difference]: Without dead ends: 0 [2018-12-01 22:39:25,245 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2018-12-01 22:39:25,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-01 22:39:25,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-01 22:39:25,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-01 22:39:25,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-01 22:39:25,246 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2018-12-01 22:39:25,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:39:25,246 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 22:39:25,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-01 22:39:25,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-01 22:39:25,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 22:39:25,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 10:39:25 BoogieIcfgContainer [2018-12-01 22:39:25,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 22:39:25,249 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 22:39:25,249 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 22:39:25,250 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 22:39:25,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:39:23" (3/4) ... [2018-12-01 22:39:25,252 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 22:39:25,256 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure alloc_20 [2018-12-01 22:39:25,256 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2018-12-01 22:39:25,256 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-01 22:39:25,256 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure free_20 [2018-12-01 22:39:25,256 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_register_device [2018-12-01 22:39:25,256 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-01 22:39:25,256 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure entry_point [2018-12-01 22:39:25,257 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_get_device [2018-12-01 22:39:25,259 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-12-01 22:39:25,259 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-01 22:39:25,260 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-01 22:39:25,285 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0334aec5-4f45-48bf-85a8-68092756211e/bin-2019/utaipan/witness.graphml [2018-12-01 22:39:25,285 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 22:39:25,286 INFO L168 Benchmark]: Toolchain (without parser) took 1907.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 951.3 MB in the beginning and 825.0 MB in the end (delta: 126.2 MB). Peak memory consumption was 267.3 MB. Max. memory is 11.5 GB. [2018-12-01 22:39:25,287 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:39:25,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -157.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-12-01 22:39:25,287 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:39:25,287 INFO L168 Benchmark]: Boogie Preprocessor took 15.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:39:25,287 INFO L168 Benchmark]: RCFGBuilder took 158.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2018-12-01 22:39:25,288 INFO L168 Benchmark]: TraceAbstraction took 1342.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 825.0 MB in the end (delta: 264.8 MB). Peak memory consumption was 264.8 MB. Max. memory is 11.5 GB. [2018-12-01 22:39:25,288 INFO L168 Benchmark]: Witness Printer took 36.04 ms. Allocated memory is still 1.2 GB. Free memory is still 825.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:39:25,289 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 329.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -157.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 158.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1342.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 825.0 MB in the end (delta: 264.8 MB). Peak memory consumption was 264.8 MB. Max. memory is 11.5 GB. * Witness Printer took 36.04 ms. Allocated memory is still 1.2 GB. Free memory is still 825.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1466]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1466]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1476]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 41 locations, 3 error locations. SAFE Result, 1.3s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 254 SDtfs, 86 SDslu, 987 SDs, 0 SdLazy, 642 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 191 ConstructedInterpolants, 0 QuantifiedInterpolants, 19601 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...