./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_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_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/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 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 ............................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/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 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 ....................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 19:59:46,072 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 19:59:46,073 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 19:59:46,080 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 19:59:46,081 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 19:59:46,081 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 19:59:46,082 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 19:59:46,082 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 19:59:46,083 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 19:59:46,084 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 19:59:46,084 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 19:59:46,084 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 19:59:46,085 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 19:59:46,085 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 19:59:46,086 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 19:59:46,086 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 19:59:46,086 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 19:59:46,087 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 19:59:46,088 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 19:59:46,089 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 19:59:46,089 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 19:59:46,090 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 19:59:46,092 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 19:59:46,092 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 19:59:46,092 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 19:59:46,093 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 19:59:46,093 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 19:59:46,093 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 19:59:46,094 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 19:59:46,094 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 19:59:46,094 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 19:59:46,095 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 19:59:46,095 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 19:59:46,095 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 19:59:46,095 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 19:59:46,096 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 19:59:46,096 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-08 19:59:46,105 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 19:59:46,105 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 19:59:46,106 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 19:59:46,106 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 19:59:46,106 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 19:59:46,106 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 19:59:46,107 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 19:59:46,107 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 19:59:46,107 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 19:59:46,107 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 19:59:46,107 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 19:59:46,107 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 19:59:46,108 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 19:59:46,108 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 19:59:46,108 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 19:59:46,108 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 19:59:46,109 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 19:59:46,109 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 19:59:46,109 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 19:59:46,109 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 19:59:46,109 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 19:59:46,109 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 19:59:46,109 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 19:59:46,110 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 19:59:46,110 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 19:59:46,110 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 19:59:46,110 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 19:59:46,110 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 19:59:46,110 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 19:59:46,110 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 19:59:46,111 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:59:46,111 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 19:59:46,111 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 19:59:46,111 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 19:59:46,111 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 19:59:46,111 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 19:59:46,111 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_306962ac-ffc1-4081-8d25-44d19e6b3367/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 -> 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 [2018-12-08 19:59:46,135 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 19:59:46,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 19:59:46,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 19:59:46,148 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 19:59:46,148 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 19:59:46,149 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/../../sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-12-08 19:59:46,189 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/data/553530131/40ceb61582cb4257bb507db68304f9e1/FLAG770c82ba2 [2018-12-08 19:59:46,567 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 19:59:46,568 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-12-08 19:59:46,573 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/data/553530131/40ceb61582cb4257bb507db68304f9e1/FLAG770c82ba2 [2018-12-08 19:59:46,941 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/data/553530131/40ceb61582cb4257bb507db68304f9e1 [2018-12-08 19:59:46,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 19:59:46,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 19:59:46,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 19:59:46,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 19:59:46,954 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 19:59:46,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:59:46" (1/1) ... [2018-12-08 19:59:46,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b10b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:46, skipping insertion in model container [2018-12-08 19:59:46,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:59:46" (1/1) ... [2018-12-08 19:59:46,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 19:59:46,983 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 19:59:47,115 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:59:47,119 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 19:59:47,184 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:59:47,215 INFO L195 MainTranslator]: Completed translation [2018-12-08 19:59:47,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:47 WrapperNode [2018-12-08 19:59:47,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 19:59:47,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 19:59:47,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 19:59:47,216 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 19:59:47,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:47" (1/1) ... [2018-12-08 19:59:47,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:47" (1/1) ... [2018-12-08 19:59:47,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 19:59:47,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 19:59:47,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 19:59:47,233 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 19:59:47,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:47" (1/1) ... [2018-12-08 19:59:47,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:47" (1/1) ... [2018-12-08 19:59:47,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:47" (1/1) ... [2018-12-08 19:59:47,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:47" (1/1) ... [2018-12-08 19:59:47,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:47" (1/1) ... [2018-12-08 19:59:47,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:47" (1/1) ... [2018-12-08 19:59:47,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:47" (1/1) ... [2018-12-08 19:59:47,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 19:59:47,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 19:59:47,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 19:59:47,247 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 19:59:47,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/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 [2018-12-08 19:59:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 19:59:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 19:59:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 19:59:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 19:59:47,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 19:59:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 19:59:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 19:59:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 19:59:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 19:59:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 19:59:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 19:59:47,397 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 19:59:47,397 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 19:59:47,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:59:47 BoogieIcfgContainer [2018-12-08 19:59:47,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 19:59:47,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 19:59:47,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 19:59:47,399 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 19:59:47,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:59:46" (1/3) ... [2018-12-08 19:59:47,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4747e5c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:59:47, skipping insertion in model container [2018-12-08 19:59:47,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:47" (2/3) ... [2018-12-08 19:59:47,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4747e5c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:59:47, skipping insertion in model container [2018-12-08 19:59:47,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:59:47" (3/3) ... [2018-12-08 19:59:47,401 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1_false-valid-memtrack_true-termination.i [2018-12-08 19:59:47,407 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 19:59:47,410 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-12-08 19:59:47,419 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-12-08 19:59:47,435 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 19:59:47,435 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 19:59:47,435 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 19:59:47,435 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 19:59:47,435 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 19:59:47,436 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 19:59:47,436 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 19:59:47,436 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 19:59:47,443 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-12-08 19:59:47,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 19:59:47,448 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:59:47,449 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:59:47,450 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2018-12-08 19:59:47,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:59:47,453 INFO L82 PathProgramCache]: Analyzing trace with hash 222801384, now seen corresponding path program 1 times [2018-12-08 19:59:47,454 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:59:47,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:59:47,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:59:47,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:59:47,482 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:59:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:59:47,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:59:47,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:59:47,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 19:59:47,542 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 19:59:47,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 19:59:47,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 19:59:47,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:59:47,553 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2018-12-08 19:59:47,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:59:47,588 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-12-08 19:59:47,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 19:59:47,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 19:59:47,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:59:47,595 INFO L225 Difference]: With dead ends: 25 [2018-12-08 19:59:47,596 INFO L226 Difference]: Without dead ends: 22 [2018-12-08 19:59:47,597 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:59:47,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-12-08 19:59:47,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-12-08 19:59:47,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-12-08 19:59:47,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-12-08 19:59:47,616 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2018-12-08 19:59:47,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:59:47,616 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-12-08 19:59:47,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 19:59:47,617 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-12-08 19:59:47,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 19:59:47,617 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:59:47,617 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:59:47,617 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2018-12-08 19:59:47,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:59:47,617 INFO L82 PathProgramCache]: Analyzing trace with hash 222801385, now seen corresponding path program 1 times [2018-12-08 19:59:47,617 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:59:47,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:59:47,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:59:47,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:59:47,618 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:59:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:59:47,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:59:47,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:59:47,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 19:59:47,648 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 19:59:47,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 19:59:47,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 19:59:47,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:59:47,649 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 3 states. [2018-12-08 19:59:47,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:59:47,664 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-12-08 19:59:47,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 19:59:47,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 19:59:47,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:59:47,665 INFO L225 Difference]: With dead ends: 17 [2018-12-08 19:59:47,665 INFO L226 Difference]: Without dead ends: 17 [2018-12-08 19:59:47,665 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:59:47,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-12-08 19:59:47,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-12-08 19:59:47,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-08 19:59:47,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-12-08 19:59:47,667 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2018-12-08 19:59:47,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:59:47,668 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-12-08 19:59:47,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 19:59:47,668 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-12-08 19:59:47,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 19:59:47,668 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:59:47,668 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:59:47,668 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2018-12-08 19:59:47,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:59:47,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1501705297, now seen corresponding path program 1 times [2018-12-08 19:59:47,669 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:59:47,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:59:47,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:59:47,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:59:47,670 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:59:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:59:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:59:47,705 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 19:59:47,711 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-08 19:59:47,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:59:47 BoogieIcfgContainer [2018-12-08 19:59:47,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 19:59:47,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 19:59:47,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 19:59:47,720 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 19:59:47,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:59:47" (3/4) ... [2018-12-08 19:59:47,722 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 19:59:47,722 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 19:59:47,723 INFO L168 Benchmark]: Toolchain (without parser) took 776.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 947.0 MB in the beginning and 1.0 GB in the end (delta: -86.0 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2018-12-08 19:59:47,724 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:59:47,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -157.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-12-08 19:59:47,725 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-08 19:59:47,725 INFO L168 Benchmark]: Boogie Preprocessor took 12.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:59:47,725 INFO L168 Benchmark]: RCFGBuilder took 150.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-12-08 19:59:47,726 INFO L168 Benchmark]: TraceAbstraction took 321.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 11.5 GB. [2018-12-08 19:59:47,726 INFO L168 Benchmark]: Witness Printer took 2.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:59:47,728 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -157.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 150.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 321.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 620]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 620. Possible FailurePath: [L622-L629] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L630] data.p0 = malloc(37U) VAL [data={40:0}, malloc(37U)={39:0}] [L631] COND FALSE !(__VERIFIER_nondet_int()) [L634] data.str.p2 = 30 VAL [data={40:0}, malloc(37U)={39:0}] [L636] EXPR data.str.p2 VAL [data={40:0}, data.str.p2=30, malloc(37U)={39:0}] [L636] COND FALSE !(25 > data.str.p2) [L639] return 0; [L639] return 0; VAL [\result=0, malloc(37U)={39:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 11 error locations. UNSAFE Result, 0.2s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 25 SDslu, 12 SDs, 0 SdLazy, 22 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-08 19:59:49,018 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 19:59:49,019 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 19:59:49,028 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 19:59:49,028 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 19:59:49,028 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 19:59:49,029 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 19:59:49,030 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 19:59:49,032 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 19:59:49,032 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 19:59:49,033 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 19:59:49,033 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 19:59:49,034 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 19:59:49,034 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 19:59:49,035 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 19:59:49,036 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 19:59:49,036 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 19:59:49,037 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 19:59:49,039 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 19:59:49,040 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 19:59:49,041 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 19:59:49,041 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 19:59:49,042 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 19:59:49,042 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 19:59:49,043 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 19:59:49,043 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 19:59:49,043 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 19:59:49,044 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 19:59:49,044 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 19:59:49,045 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 19:59:49,045 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 19:59:49,045 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 19:59:49,045 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 19:59:49,045 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 19:59:49,046 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 19:59:49,046 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 19:59:49,046 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2018-12-08 19:59:49,053 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 19:59:49,053 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 19:59:49,054 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 19:59:49,054 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 19:59:49,054 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 19:59:49,054 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 19:59:49,054 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 19:59:49,054 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 19:59:49,054 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 19:59:49,054 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 19:59:49,055 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 19:59:49,055 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 19:59:49,055 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 19:59:49,055 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 19:59:49,055 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 19:59:49,055 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 19:59:49,055 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 19:59:49,055 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 19:59:49,055 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 19:59:49,056 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 19:59:49,056 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 19:59:49,056 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 19:59:49,056 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 19:59:49,056 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 19:59:49,056 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 19:59:49,056 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 19:59:49,056 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 19:59:49,056 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 19:59:49,056 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 19:59:49,056 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 19:59:49,056 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:59:49,057 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 19:59:49,057 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 19:59:49,057 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 19:59:49,057 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 19:59:49,057 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 19:59:49,057 INFO L133 SettingsManager]: * Logic for external solver=AUFBV 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_306962ac-ffc1-4081-8d25-44d19e6b3367/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 -> 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 [2018-12-08 19:59:49,075 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 19:59:49,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 19:59:49,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 19:59:49,088 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 19:59:49,088 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 19:59:49,089 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/../../sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-12-08 19:59:49,132 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/data/2a2e828ed/145575b340f44f7aa5625f48e99d822f/FLAG757a3d1af [2018-12-08 19:59:49,549 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 19:59:49,549 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-12-08 19:59:49,556 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/data/2a2e828ed/145575b340f44f7aa5625f48e99d822f/FLAG757a3d1af [2018-12-08 19:59:49,565 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/data/2a2e828ed/145575b340f44f7aa5625f48e99d822f [2018-12-08 19:59:49,566 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 19:59:49,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 19:59:49,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 19:59:49,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 19:59:49,571 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 19:59:49,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:59:49" (1/1) ... [2018-12-08 19:59:49,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149b19b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:49, skipping insertion in model container [2018-12-08 19:59:49,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:59:49" (1/1) ... [2018-12-08 19:59:49,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 19:59:49,604 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 19:59:49,746 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:59:49,750 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 19:59:49,776 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:59:49,803 INFO L195 MainTranslator]: Completed translation [2018-12-08 19:59:49,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:49 WrapperNode [2018-12-08 19:59:49,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 19:59:49,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 19:59:49,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 19:59:49,804 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 19:59:49,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:49" (1/1) ... [2018-12-08 19:59:49,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:49" (1/1) ... [2018-12-08 19:59:49,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 19:59:49,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 19:59:49,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 19:59:49,858 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 19:59:49,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:49" (1/1) ... [2018-12-08 19:59:49,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:49" (1/1) ... [2018-12-08 19:59:49,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:49" (1/1) ... [2018-12-08 19:59:49,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:49" (1/1) ... [2018-12-08 19:59:49,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:49" (1/1) ... [2018-12-08 19:59:49,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:49" (1/1) ... [2018-12-08 19:59:49,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:49" (1/1) ... [2018-12-08 19:59:49,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 19:59:49,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 19:59:49,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 19:59:49,873 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 19:59:49,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/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 [2018-12-08 19:59:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 19:59:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 19:59:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 19:59:49,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 19:59:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 19:59:49,904 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 19:59:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 19:59:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-12-08 19:59:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 19:59:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 19:59:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 19:59:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 19:59:50,090 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 19:59:50,090 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 19:59:50,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:59:50 BoogieIcfgContainer [2018-12-08 19:59:50,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 19:59:50,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 19:59:50,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 19:59:50,093 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 19:59:50,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:59:49" (1/3) ... [2018-12-08 19:59:50,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593da714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:59:50, skipping insertion in model container [2018-12-08 19:59:50,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:59:49" (2/3) ... [2018-12-08 19:59:50,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593da714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:59:50, skipping insertion in model container [2018-12-08 19:59:50,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:59:50" (3/3) ... [2018-12-08 19:59:50,094 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1_false-valid-memtrack_true-termination.i [2018-12-08 19:59:50,100 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 19:59:50,104 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-12-08 19:59:50,112 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-12-08 19:59:50,127 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 19:59:50,128 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 19:59:50,128 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 19:59:50,128 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 19:59:50,128 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 19:59:50,128 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 19:59:50,128 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 19:59:50,128 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 19:59:50,128 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 19:59:50,136 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-12-08 19:59:50,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 19:59:50,141 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:59:50,141 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:59:50,142 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2018-12-08 19:59:50,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:59:50,145 INFO L82 PathProgramCache]: Analyzing trace with hash -664733049, now seen corresponding path program 1 times [2018-12-08 19:59:50,148 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 19:59:50,148 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 19:59:50,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:59:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:59:50,191 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:59:50,232 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 19:59:50,235 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-12-08 19:59:50,239 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-12-08 19:59:50,240 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 19:59:50,245 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 19:59:50,253 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 19:59:50,253 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2018-12-08 19:59:50,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:59:50,263 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:59:50,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:59:50,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 19:59:50,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 19:59:50,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 19:59:50,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:59:50,277 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2018-12-08 19:59:50,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:59:50,337 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-12-08 19:59:50,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 19:59:50,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 19:59:50,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:59:50,344 INFO L225 Difference]: With dead ends: 24 [2018-12-08 19:59:50,344 INFO L226 Difference]: Without dead ends: 21 [2018-12-08 19:59:50,345 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:59:50,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-08 19:59:50,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-12-08 19:59:50,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-08 19:59:50,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-12-08 19:59:50,364 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2018-12-08 19:59:50,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:59:50,364 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-12-08 19:59:50,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 19:59:50,365 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-12-08 19:59:50,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 19:59:50,365 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:59:50,365 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:59:50,365 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2018-12-08 19:59:50,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:59:50,366 INFO L82 PathProgramCache]: Analyzing trace with hash -664733048, now seen corresponding path program 1 times [2018-12-08 19:59:50,366 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 19:59:50,366 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 19:59:50,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:59:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:59:50,399 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:59:50,415 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-08 19:59:50,419 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 19:59:50,420 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-08 19:59:50,420 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 19:59:50,426 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 19:59:50,439 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-08 19:59:50,440 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 19:59:50,447 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 19:59:50,447 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2018-12-08 19:59:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:59:50,457 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:59:50,458 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:59:50,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 19:59:50,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 19:59:50,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 19:59:50,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:59:50,460 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 3 states. [2018-12-08 19:59:50,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:59:50,498 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-12-08 19:59:50,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 19:59:50,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 19:59:50,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:59:50,499 INFO L225 Difference]: With dead ends: 16 [2018-12-08 19:59:50,499 INFO L226 Difference]: Without dead ends: 16 [2018-12-08 19:59:50,500 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:59:50,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-12-08 19:59:50,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-12-08 19:59:50,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-08 19:59:50,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-12-08 19:59:50,502 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2018-12-08 19:59:50,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:59:50,502 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-12-08 19:59:50,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 19:59:50,502 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-12-08 19:59:50,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 19:59:50,503 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:59:50,503 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:59:50,503 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2018-12-08 19:59:50,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:59:50,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1291346989, now seen corresponding path program 1 times [2018-12-08 19:59:50,504 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 19:59:50,504 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_306962ac-ffc1-4081-8d25-44d19e6b3367/bin-2019/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 19:59:50,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:59:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:59:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:59:50,591 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 19:59:50,599 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-08 19:59:50,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:59:50 BoogieIcfgContainer [2018-12-08 19:59:50,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 19:59:50,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 19:59:50,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 19:59:50,608 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 19:59:50,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:59:50" (3/4) ... [2018-12-08 19:59:50,610 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 19:59:50,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 19:59:50,611 INFO L168 Benchmark]: Toolchain (without parser) took 1044.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 938.0 MB in the beginning and 1.0 GB in the end (delta: -73.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. [2018-12-08 19:59:50,612 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:59:50,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.57 ms. Allocated memory is still 1.0 GB. Free memory was 938.0 MB in the beginning and 916.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-12-08 19:59:50,612 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -201.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-12-08 19:59:50,613 INFO L168 Benchmark]: Boogie Preprocessor took 15.42 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. [2018-12-08 19:59:50,613 INFO L168 Benchmark]: RCFGBuilder took 217.58 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-12-08 19:59:50,613 INFO L168 Benchmark]: TraceAbstraction took 516.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.8 MB). Peak memory consumption was 88.8 MB. Max. memory is 11.5 GB. [2018-12-08 19:59:50,613 INFO L168 Benchmark]: Witness Printer took 2.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:59:50,615 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 235.57 ms. Allocated memory is still 1.0 GB. Free memory was 938.0 MB in the beginning and 916.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -201.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.42 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 217.58 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 516.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.8 MB). Peak memory consumption was 88.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 620]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 620. Possible FailurePath: [L622-L629] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L630] data.p0 = malloc(37U) VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L631] COND FALSE !(__VERIFIER_nondet_int()) [L634] data.str.p2 = 30 VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L636] EXPR data.str.p2 VAL [data={-2147483647:0}, data.str.p2=30, malloc(37U)={-2147483648:0}] [L636] COND FALSE !(25 > data.str.p2) [L639] return 0; [L639] return 0; VAL [\result=0, malloc(37U)={-2147483648:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 11 error locations. UNSAFE Result, 0.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 23 SDslu, 12 SDs, 0 SdLazy, 22 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 2 QuantifiedInterpolants, 288 SizeOfPredicates, 2 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...