./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_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_07b619dc-24b0-436e-b84a-8271886ecd2d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_07b619dc-24b0-436e-b84a-8271886ecd2d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_07b619dc-24b0-436e-b84a-8271886ecd2d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_07b619dc-24b0-436e-b84a-8271886ecd2d/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_07b619dc-24b0-436e-b84a-8271886ecd2d/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_07b619dc-24b0-436e-b84a-8271886ecd2d/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 13d9e1f555d8a0e0fd0128fab121c949ab04cadc .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 02:18:23,798 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 02:18:23,799 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 02:18:23,805 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 02:18:23,805 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 02:18:23,805 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 02:18:23,806 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 02:18:23,807 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 02:18:23,808 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 02:18:23,808 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 02:18:23,809 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 02:18:23,809 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 02:18:23,810 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 02:18:23,810 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 02:18:23,811 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 02:18:23,811 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 02:18:23,812 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 02:18:23,813 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 02:18:23,814 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 02:18:23,814 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 02:18:23,815 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 02:18:23,816 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 02:18:23,817 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 02:18:23,817 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 02:18:23,817 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 02:18:23,818 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 02:18:23,818 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 02:18:23,819 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 02:18:23,819 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 02:18:23,819 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 02:18:23,820 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 02:18:23,820 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 02:18:23,820 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 02:18:23,820 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 02:18:23,821 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 02:18:23,821 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 02:18:23,821 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_07b619dc-24b0-436e-b84a-8271886ecd2d/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-02 02:18:23,829 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 02:18:23,829 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 02:18:23,829 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 02:18:23,829 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 02:18:23,830 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 02:18:23,830 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 02:18:23,830 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 02:18:23,830 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 02:18:23,830 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 02:18:23,830 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 02:18:23,830 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 02:18:23,831 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 02:18:23,831 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 02:18:23,831 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 02:18:23,831 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 02:18:23,831 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 02:18:23,831 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 02:18:23,832 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 02:18:23,832 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 02:18:23,832 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 02:18:23,832 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 02:18:23,832 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 02:18:23,832 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 02:18:23,832 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 02:18:23,833 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 02:18:23,833 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 02:18:23,833 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 02:18:23,833 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 02:18:23,833 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 02:18:23,833 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 02:18:23,833 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 02:18:23,833 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 02:18:23,834 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 02:18:23,834 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 02:18:23,834 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 02:18:23,834 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 02:18:23,834 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_07b619dc-24b0-436e-b84a-8271886ecd2d/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 -> 13d9e1f555d8a0e0fd0128fab121c949ab04cadc [2018-12-02 02:18:23,853 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 02:18:23,861 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 02:18:23,864 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 02:18:23,865 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 02:18:23,865 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 02:18:23,866 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_07b619dc-24b0-436e-b84a-8271886ecd2d/bin-2019/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_true-valid-memsafety_true-termination.i [2018-12-02 02:18:23,904 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07b619dc-24b0-436e-b84a-8271886ecd2d/bin-2019/utaipan/data/744205e24/0b077df7279e47589677af776c1d148e/FLAG9ea37a7ea [2018-12-02 02:18:24,391 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 02:18:24,391 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_07b619dc-24b0-436e-b84a-8271886ecd2d/sv-benchmarks/c/ldv-memsafety/memleaks_test16_true-valid-memsafety_true-termination.i [2018-12-02 02:18:24,398 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07b619dc-24b0-436e-b84a-8271886ecd2d/bin-2019/utaipan/data/744205e24/0b077df7279e47589677af776c1d148e/FLAG9ea37a7ea [2018-12-02 02:18:24,407 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_07b619dc-24b0-436e-b84a-8271886ecd2d/bin-2019/utaipan/data/744205e24/0b077df7279e47589677af776c1d148e [2018-12-02 02:18:24,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 02:18:24,409 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 02:18:24,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 02:18:24,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 02:18:24,412 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 02:18:24,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:18:24" (1/1) ... [2018-12-02 02:18:24,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f5fc0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:18:24, skipping insertion in model container [2018-12-02 02:18:24,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:18:24" (1/1) ... [2018-12-02 02:18:24,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 02:18:24,440 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 02:18:24,654 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:18:24,662 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 02:18:24,703 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:18:24,735 INFO L195 MainTranslator]: Completed translation [2018-12-02 02:18:24,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:18:24 WrapperNode [2018-12-02 02:18:24,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 02:18:24,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 02:18:24,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 02:18:24,736 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 02:18:24,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:18:24" (1/1) ... [2018-12-02 02:18:24,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:18:24" (1/1) ... [2018-12-02 02:18:24,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 02:18:24,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 02:18:24,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 02:18:24,758 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 02:18:24,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:18:24" (1/1) ... [2018-12-02 02:18:24,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:18:24" (1/1) ... [2018-12-02 02:18:24,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:18:24" (1/1) ... [2018-12-02 02:18:24,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:18:24" (1/1) ... [2018-12-02 02:18:24,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:18:24" (1/1) ... [2018-12-02 02:18:24,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:18:24" (1/1) ... [2018-12-02 02:18:24,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:18:24" (1/1) ... [2018-12-02 02:18:24,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 02:18:24,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 02:18:24,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 02:18:24,773 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 02:18:24,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:18:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07b619dc-24b0-436e-b84a-8271886ecd2d/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 [2018-12-02 02:18:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 02:18:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-12-02 02:18:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-12-02 02:18:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_16 [2018-12-02 02:18:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_16 [2018-12-02 02:18:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 02:18:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 02:18:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 02:18:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 02:18:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 02:18:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-02 02:18:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure free_16 [2018-12-02 02:18:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure free_16 [2018-12-02 02:18:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-12-02 02:18:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-12-02 02:18:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 02:18:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 02:18:24,925 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 02:18:24,925 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 02:18:24,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:18:24 BoogieIcfgContainer [2018-12-02 02:18:24,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 02:18:24,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 02:18:24,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 02:18:24,928 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 02:18:24,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:18:24" (1/3) ... [2018-12-02 02:18:24,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a2b5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:18:24, skipping insertion in model container [2018-12-02 02:18:24,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:18:24" (2/3) ... [2018-12-02 02:18:24,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a2b5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:18:24, skipping insertion in model container [2018-12-02 02:18:24,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:18:24" (3/3) ... [2018-12-02 02:18:24,930 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test16_true-valid-memsafety_true-termination.i [2018-12-02 02:18:24,936 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 02:18:24,941 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-02 02:18:24,950 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-02 02:18:24,965 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 02:18:24,966 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-02 02:18:24,966 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 02:18:24,966 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 02:18:24,966 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 02:18:24,966 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 02:18:24,966 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 02:18:24,966 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 02:18:24,974 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-12-02 02:18:24,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 02:18:24,980 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:18:24,980 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:18:24,982 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 02:18:24,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:18:24,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1150826483, now seen corresponding path program 1 times [2018-12-02 02:18:24,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:18:25,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:18:25,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,020 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:18:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:18:25,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:18:25,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:18:25,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 02:18:25,125 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:18:25,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 02:18:25,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 02:18:25,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 02:18:25,137 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 7 states. [2018-12-02 02:18:25,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:18:25,196 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2018-12-02 02:18:25,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 02:18:25,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-12-02 02:18:25,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:18:25,204 INFO L225 Difference]: With dead ends: 47 [2018-12-02 02:18:25,204 INFO L226 Difference]: Without dead ends: 44 [2018-12-02 02:18:25,205 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-12-02 02:18:25,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-02 02:18:25,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2018-12-02 02:18:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-02 02:18:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2018-12-02 02:18:25,228 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 17 [2018-12-02 02:18:25,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:18:25,228 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2018-12-02 02:18:25,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 02:18:25,228 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-12-02 02:18:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 02:18:25,229 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:18:25,229 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] [2018-12-02 02:18:25,229 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 02:18:25,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:18:25,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1471942031, now seen corresponding path program 1 times [2018-12-02 02:18:25,229 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:18:25,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:18:25,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,231 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:18:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:18:25,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:18:25,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:18:25,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 02:18:25,256 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:18:25,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 02:18:25,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 02:18:25,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 02:18:25,258 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand 3 states. [2018-12-02 02:18:25,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:18:25,282 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-12-02 02:18:25,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 02:18:25,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-12-02 02:18:25,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:18:25,284 INFO L225 Difference]: With dead ends: 52 [2018-12-02 02:18:25,284 INFO L226 Difference]: Without dead ends: 41 [2018-12-02 02:18:25,284 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 02:18:25,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-02 02:18:25,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-02 02:18:25,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-02 02:18:25,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-12-02 02:18:25,291 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 21 [2018-12-02 02:18:25,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:18:25,291 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-12-02 02:18:25,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 02:18:25,292 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-12-02 02:18:25,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 02:18:25,292 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:18:25,292 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] [2018-12-02 02:18:25,292 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 02:18:25,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:18:25,293 INFO L82 PathProgramCache]: Analyzing trace with hash -746936682, now seen corresponding path program 1 times [2018-12-02 02:18:25,293 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:18:25,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:18:25,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,294 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:18:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:18:25,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:18:25,360 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:18:25,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 02:18:25,360 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:18:25,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 02:18:25,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 02:18:25,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-02 02:18:25,361 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 9 states. [2018-12-02 02:18:25,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:18:25,383 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2018-12-02 02:18:25,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 02:18:25,383 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-12-02 02:18:25,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:18:25,384 INFO L225 Difference]: With dead ends: 40 [2018-12-02 02:18:25,384 INFO L226 Difference]: Without dead ends: 40 [2018-12-02 02:18:25,384 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-02 02:18:25,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-12-02 02:18:25,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-12-02 02:18:25,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-02 02:18:25,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2018-12-02 02:18:25,388 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 23 [2018-12-02 02:18:25,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:18:25,388 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2018-12-02 02:18:25,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 02:18:25,388 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-12-02 02:18:25,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 02:18:25,389 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:18:25,389 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] [2018-12-02 02:18:25,389 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 02:18:25,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:18:25,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1680200603, now seen corresponding path program 1 times [2018-12-02 02:18:25,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:18:25,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:18:25,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,390 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:18:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:18:25,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:18:25,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:18:25,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 02:18:25,449 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:18:25,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 02:18:25,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 02:18:25,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-02 02:18:25,450 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand 9 states. [2018-12-02 02:18:25,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:18:25,508 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2018-12-02 02:18:25,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 02:18:25,508 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-12-02 02:18:25,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:18:25,509 INFO L225 Difference]: With dead ends: 48 [2018-12-02 02:18:25,509 INFO L226 Difference]: Without dead ends: 46 [2018-12-02 02:18:25,510 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-02 02:18:25,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-02 02:18:25,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2018-12-02 02:18:25,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-02 02:18:25,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2018-12-02 02:18:25,513 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 24 [2018-12-02 02:18:25,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:18:25,513 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2018-12-02 02:18:25,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 02:18:25,514 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2018-12-02 02:18:25,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 02:18:25,514 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:18:25,514 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] [2018-12-02 02:18:25,514 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 02:18:25,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:18:25,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1551117884, now seen corresponding path program 1 times [2018-12-02 02:18:25,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:18:25,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:18:25,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,516 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:18:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:18:25,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:18:25,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:18:25,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 02:18:25,568 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:18:25,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 02:18:25,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 02:18:25,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-02 02:18:25,569 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand 9 states. [2018-12-02 02:18:25,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:18:25,597 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2018-12-02 02:18:25,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 02:18:25,597 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-12-02 02:18:25,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:18:25,597 INFO L225 Difference]: With dead ends: 47 [2018-12-02 02:18:25,598 INFO L226 Difference]: Without dead ends: 47 [2018-12-02 02:18:25,598 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-02 02:18:25,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-02 02:18:25,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2018-12-02 02:18:25,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-02 02:18:25,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2018-12-02 02:18:25,601 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 24 [2018-12-02 02:18:25,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:18:25,601 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2018-12-02 02:18:25,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 02:18:25,601 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2018-12-02 02:18:25,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 02:18:25,602 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:18:25,602 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] [2018-12-02 02:18:25,602 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 02:18:25,602 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:18:25,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1129286990, now seen corresponding path program 1 times [2018-12-02 02:18:25,602 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:18:25,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:18:25,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,603 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:18:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:18:25,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:18:25,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:18:25,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 02:18:25,632 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:18:25,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 02:18:25,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 02:18:25,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 02:18:25,633 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 7 states. [2018-12-02 02:18:25,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:18:25,658 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2018-12-02 02:18:25,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 02:18:25,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-12-02 02:18:25,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:18:25,659 INFO L225 Difference]: With dead ends: 45 [2018-12-02 02:18:25,659 INFO L226 Difference]: Without dead ends: 43 [2018-12-02 02:18:25,659 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-12-02 02:18:25,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-02 02:18:25,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 30. [2018-12-02 02:18:25,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-02 02:18:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-12-02 02:18:25,661 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 27 [2018-12-02 02:18:25,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:18:25,662 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-12-02 02:18:25,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 02:18:25,662 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-12-02 02:18:25,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-02 02:18:25,662 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:18:25,662 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] [2018-12-02 02:18:25,662 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 02:18:25,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:18:25,663 INFO L82 PathProgramCache]: Analyzing trace with hash -2120746538, now seen corresponding path program 1 times [2018-12-02 02:18:25,663 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:18:25,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:18:25,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,664 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:18:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:18:25,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:18:25,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:18:25,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 02:18:25,762 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:18:25,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 02:18:25,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 02:18:25,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-12-02 02:18:25,763 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 10 states. [2018-12-02 02:18:25,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:18:25,893 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2018-12-02 02:18:25,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-02 02:18:25,894 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2018-12-02 02:18:25,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:18:25,894 INFO L225 Difference]: With dead ends: 40 [2018-12-02 02:18:25,894 INFO L226 Difference]: Without dead ends: 30 [2018-12-02 02:18:25,895 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-12-02 02:18:25,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-02 02:18:25,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-12-02 02:18:25,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-02 02:18:25,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2018-12-02 02:18:25,897 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 29 [2018-12-02 02:18:25,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:18:25,898 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2018-12-02 02:18:25,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 02:18:25,898 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2018-12-02 02:18:25,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-02 02:18:25,899 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:18:25,899 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] [2018-12-02 02:18:25,899 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-02 02:18:25,899 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:18:25,899 INFO L82 PathProgramCache]: Analyzing trace with hash -767436841, now seen corresponding path program 1 times [2018-12-02 02:18:25,899 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:18:25,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:18:25,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:18:25,901 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:18:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:18:26,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:18:26,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:18:26,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-02 02:18:26,060 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:18:26,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-02 02:18:26,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-02 02:18:26,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-12-02 02:18:26,060 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 13 states. [2018-12-02 02:18:26,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:18:26,181 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2018-12-02 02:18:26,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 02:18:26,182 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 29 [2018-12-02 02:18:26,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:18:26,182 INFO L225 Difference]: With dead ends: 29 [2018-12-02 02:18:26,182 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 02:18:26,182 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2018-12-02 02:18:26,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 02:18:26,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 02:18:26,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 02:18:26,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 02:18:26,183 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-12-02 02:18:26,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:18:26,183 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 02:18:26,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-02 02:18:26,183 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 02:18:26,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 02:18:26,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:18:26 BoogieIcfgContainer [2018-12-02 02:18:26,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 02:18:26,186 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 02:18:26,186 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 02:18:26,187 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 02:18:26,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:18:24" (3/4) ... [2018-12-02 02:18:26,189 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 02:18:26,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2018-12-02 02:18:26,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 02:18:26,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure alloc_16 [2018-12-02 02:18:26,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 02:18:26,194 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure free_16 [2018-12-02 02:18:26,194 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure entry_point [2018-12-02 02:18:26,196 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-02 02:18:26,196 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 02:18:26,196 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 02:18:26,221 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_07b619dc-24b0-436e-b84a-8271886ecd2d/bin-2019/utaipan/witness.graphml [2018-12-02 02:18:26,221 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 02:18:26,221 INFO L168 Benchmark]: Toolchain (without parser) took 1812.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 952.4 MB in the beginning and 833.8 MB in the end (delta: 118.6 MB). Peak memory consumption was 253.8 MB. Max. memory is 11.5 GB. [2018-12-02 02:18:26,222 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-12-02 02:18:26,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2018-12-02 02:18:26,223 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.90 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. [2018-12-02 02:18:26,223 INFO L168 Benchmark]: Boogie Preprocessor took 14.71 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. [2018-12-02 02:18:26,223 INFO L168 Benchmark]: RCFGBuilder took 152.36 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-12-02 02:18:26,223 INFO L168 Benchmark]: TraceAbstraction took 1260.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 840.6 MB in the end (delta: 243.6 MB). Peak memory consumption was 243.6 MB. Max. memory is 11.5 GB. [2018-12-02 02:18:26,224 INFO L168 Benchmark]: Witness Printer took 34.68 ms. Allocated memory is still 1.2 GB. Free memory was 840.6 MB in the beginning and 833.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-02 02:18:26,225 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 326.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.90 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 14.71 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 152.36 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1260.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 840.6 MB in the end (delta: 243.6 MB). Peak memory consumption was 243.6 MB. Max. memory is 11.5 GB. * Witness Printer took 34.68 ms. Allocated memory is still 1.2 GB. Free memory was 840.6 MB in the beginning and 833.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1459]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1449]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1449]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 35 locations, 3 error locations. SAFE Result, 1.2s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 230 SDtfs, 115 SDslu, 1038 SDs, 0 SdLazy, 509 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 8 MinimizatonAttempts, 23 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 22388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...