./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158_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_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/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 9b3e50b8f852fe8799cb6ad900b216b16bf216ae ......................................................................................................................................................................................................................................................................................................................................... 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_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/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 9b3e50b8f852fe8799cb6ad900b216b16bf216ae .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 05:09:56,676 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 05:09:56,677 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 05:09:56,683 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 05:09:56,683 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 05:09:56,684 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 05:09:56,684 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 05:09:56,685 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 05:09:56,686 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 05:09:56,686 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 05:09:56,687 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 05:09:56,687 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 05:09:56,688 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 05:09:56,688 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 05:09:56,689 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 05:09:56,689 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 05:09:56,689 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 05:09:56,690 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 05:09:56,691 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 05:09:56,692 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 05:09:56,692 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 05:09:56,693 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 05:09:56,694 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 05:09:56,694 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 05:09:56,694 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 05:09:56,695 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 05:09:56,695 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 05:09:56,696 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 05:09:56,696 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 05:09:56,697 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 05:09:56,697 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 05:09:56,697 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 05:09:56,697 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 05:09:56,697 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 05:09:56,698 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 05:09:56,698 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 05:09:56,699 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-03 05:09:56,706 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 05:09:56,706 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 05:09:56,706 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 05:09:56,707 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 05:09:56,707 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 05:09:56,707 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 05:09:56,707 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 05:09:56,707 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 05:09:56,707 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 05:09:56,707 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 05:09:56,707 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 05:09:56,707 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 05:09:56,707 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 05:09:56,708 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 05:09:56,708 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 05:09:56,708 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 05:09:56,708 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 05:09:56,708 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-03 05:09:56,708 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 05:09:56,708 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 05:09:56,708 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 05:09:56,709 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-03 05:09:56,709 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-03 05:09:56,709 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-03 05:09:56,709 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 05:09:56,709 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 05:09:56,709 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 05:09:56,709 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 05:09:56,709 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 05:09:56,709 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 05:09:56,709 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 05:09:56,709 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 05:09:56,710 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 05:09:56,710 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 05:09:56,710 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 05:09:56,710 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 05:09:56,710 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_ec0c54fe-390b-4f6d-83bf-0872d090638c/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 -> 9b3e50b8f852fe8799cb6ad900b216b16bf216ae [2018-12-03 05:09:56,728 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 05:09:56,738 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 05:09:56,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 05:09:56,741 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 05:09:56,742 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 05:09:56,742 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-03 05:09:56,780 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/data/cb3bab421/9615424705ac40d5a90fe8b2a35f8725/FLAG8cfb42d7d [2018-12-03 05:09:57,151 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 05:09:57,151 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-03 05:09:57,157 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/data/cb3bab421/9615424705ac40d5a90fe8b2a35f8725/FLAG8cfb42d7d [2018-12-03 05:09:57,165 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/data/cb3bab421/9615424705ac40d5a90fe8b2a35f8725 [2018-12-03 05:09:57,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 05:09:57,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 05:09:57,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 05:09:57,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 05:09:57,170 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 05:09:57,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:09:57" (1/1) ... [2018-12-03 05:09:57,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b899854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:57, skipping insertion in model container [2018-12-03 05:09:57,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:09:57" (1/1) ... [2018-12-03 05:09:57,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 05:09:57,194 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 05:09:57,342 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 05:09:57,347 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 05:09:57,414 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 05:09:57,441 INFO L195 MainTranslator]: Completed translation [2018-12-03 05:09:57,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:57 WrapperNode [2018-12-03 05:09:57,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 05:09:57,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 05:09:57,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 05:09:57,442 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 05:09:57,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:57" (1/1) ... [2018-12-03 05:09:57,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:57" (1/1) ... [2018-12-03 05:09:57,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 05:09:57,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 05:09:57,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 05:09:57,462 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 05:09:57,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:57" (1/1) ... [2018-12-03 05:09:57,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:57" (1/1) ... [2018-12-03 05:09:57,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:57" (1/1) ... [2018-12-03 05:09:57,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:57" (1/1) ... [2018-12-03 05:09:57,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:57" (1/1) ... [2018-12-03 05:09:57,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:57" (1/1) ... [2018-12-03 05:09:57,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:57" (1/1) ... [2018-12-03 05:09:57,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 05:09:57,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 05:09:57,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 05:09:57,476 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 05:09:57,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/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 [2018-12-03 05:09:57,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 05:09:57,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 05:09:57,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 05:09:57,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 05:09:57,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 05:09:57,509 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 05:09:57,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-03 05:09:57,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 05:09:57,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 05:09:57,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 05:09:57,617 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 05:09:57,617 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-03 05:09:57,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:09:57 BoogieIcfgContainer [2018-12-03 05:09:57,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 05:09:57,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 05:09:57,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 05:09:57,620 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 05:09:57,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 05:09:57" (1/3) ... [2018-12-03 05:09:57,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7756ab73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:09:57, skipping insertion in model container [2018-12-03 05:09:57,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:57" (2/3) ... [2018-12-03 05:09:57,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7756ab73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:09:57, skipping insertion in model container [2018-12-03 05:09:57,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:09:57" (3/3) ... [2018-12-03 05:09:57,622 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-12-03 05:09:57,628 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 05:09:57,633 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-12-03 05:09:57,643 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-12-03 05:09:57,658 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 05:09:57,658 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-03 05:09:57,659 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 05:09:57,659 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 05:09:57,659 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 05:09:57,659 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 05:09:57,659 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 05:09:57,659 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 05:09:57,668 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-03 05:09:57,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-03 05:09:57,673 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:09:57,675 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:09:57,677 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-12-03 05:09:57,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:09:57,680 INFO L82 PathProgramCache]: Analyzing trace with hash 539516341, now seen corresponding path program 1 times [2018-12-03 05:09:57,681 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:09:57,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:09:57,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:09:57,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:09:57,710 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:09:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:09:57,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:09:57,788 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:09:57,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 05:09:57,788 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:09:57,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 05:09:57,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 05:09:57,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:09:57,800 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-12-03 05:09:57,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:09:57,831 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-03 05:09:57,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 05:09:57,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-03 05:09:57,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:09:57,837 INFO L225 Difference]: With dead ends: 18 [2018-12-03 05:09:57,837 INFO L226 Difference]: Without dead ends: 15 [2018-12-03 05:09:57,839 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 [2018-12-03 05:09:57,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-03 05:09:57,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-03 05:09:57,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-03 05:09:57,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-12-03 05:09:57,859 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2018-12-03 05:09:57,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:09:57,860 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-12-03 05:09:57,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 05:09:57,860 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-12-03 05:09:57,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-03 05:09:57,860 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:09:57,860 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:09:57,860 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-12-03 05:09:57,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:09:57,861 INFO L82 PathProgramCache]: Analyzing trace with hash 539516342, now seen corresponding path program 1 times [2018-12-03 05:09:57,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:09:57,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:09:57,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:09:57,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:09:57,862 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:09:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:09:57,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:09:57,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:09:57,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 05:09:57,903 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:09:57,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 05:09:57,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 05:09:57,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:09:57,904 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 3 states. [2018-12-03 05:09:57,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:09:57,916 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-12-03 05:09:57,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 05:09:57,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-03 05:09:57,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:09:57,917 INFO L225 Difference]: With dead ends: 12 [2018-12-03 05:09:57,917 INFO L226 Difference]: Without dead ends: 12 [2018-12-03 05:09:57,918 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 [2018-12-03 05:09:57,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-03 05:09:57,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-03 05:09:57,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-03 05:09:57,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-12-03 05:09:57,919 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2018-12-03 05:09:57,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:09:57,920 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-12-03 05:09:57,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 05:09:57,920 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-12-03 05:09:57,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-03 05:09:57,920 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:09:57,920 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:09:57,920 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-12-03 05:09:57,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:09:57,921 INFO L82 PathProgramCache]: Analyzing trace with hash -190928391, now seen corresponding path program 1 times [2018-12-03 05:09:57,921 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:09:57,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:09:57,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:09:57,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:09:57,922 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:09:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 05:09:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 05:09:57,966 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 05:09:57,973 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-03 05:09:57,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 05:09:57 BoogieIcfgContainer [2018-12-03 05:09:57,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 05:09:57,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 05:09:57,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 05:09:57,980 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 05:09:57,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:09:57" (3/4) ... [2018-12-03 05:09:57,983 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-03 05:09:57,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 05:09:57,983 INFO L168 Benchmark]: Toolchain (without parser) took 816.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 953.4 MB in the beginning and 1.1 GB in the end (delta: -129.5 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2018-12-03 05:09:57,984 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. [2018-12-03 05:09:57,984 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 953.4 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-12-03 05:09:57,985 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.45 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. [2018-12-03 05:09:57,985 INFO L168 Benchmark]: Boogie Preprocessor took 13.99 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. [2018-12-03 05:09:57,985 INFO L168 Benchmark]: RCFGBuilder took 141.69 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-12-03 05:09:57,986 INFO L168 Benchmark]: TraceAbstraction took 362.28 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: 43.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 11.5 GB. [2018-12-03 05:09:57,986 INFO L168 Benchmark]: Witness Printer took 2.69 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. [2018-12-03 05:09:57,988 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 273.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 953.4 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.45 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 13.99 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 141.69 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 362.28 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: 43.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.69 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. * 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: 619]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 619. Possible FailurePath: [L621-L628] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L629] data.p0 = malloc(37U) VAL [data={39:0}, malloc(37U)={40:0}] [L630] data.str.p2 = &data VAL [data={39:0}, malloc(37U)={40:0}] [L631] data.str.c[1] = sizeof data.str.p1 VAL [data={39:0}, malloc(37U)={40:0}] [L632] return 0; [L632] return 0; VAL [\result=0, malloc(37U)={40:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 7 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 9 SDslu, 12 SDs, 0 SdLazy, 16 SolverSat, 4 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=21occurred 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, 25 NumberOfCodeBlocks, 25 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 [2018-12-03 05:09:59,296 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 05:09:59,297 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 05:09:59,304 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 05:09:59,305 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 05:09:59,305 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 05:09:59,306 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 05:09:59,307 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 05:09:59,309 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 05:09:59,309 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 05:09:59,310 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 05:09:59,310 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 05:09:59,311 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 05:09:59,311 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 05:09:59,312 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 05:09:59,313 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 05:09:59,313 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 05:09:59,315 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 05:09:59,316 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 05:09:59,317 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 05:09:59,318 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 05:09:59,319 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 05:09:59,320 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 05:09:59,320 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 05:09:59,321 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 05:09:59,321 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 05:09:59,322 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 05:09:59,322 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 05:09:59,323 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 05:09:59,324 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 05:09:59,324 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 05:09:59,324 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 05:09:59,325 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 05:09:59,325 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 05:09:59,325 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 05:09:59,326 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 05:09:59,326 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2018-12-03 05:09:59,336 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 05:09:59,337 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 05:09:59,337 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 05:09:59,337 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 05:09:59,337 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 05:09:59,338 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 05:09:59,338 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 05:09:59,338 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 05:09:59,338 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 05:09:59,338 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 05:09:59,338 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 05:09:59,339 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 05:09:59,339 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 05:09:59,339 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 05:09:59,339 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-03 05:09:59,339 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 05:09:59,339 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 05:09:59,339 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 05:09:59,339 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-03 05:09:59,339 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-03 05:09:59,340 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-03 05:09:59,340 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 05:09:59,340 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-03 05:09:59,340 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-03 05:09:59,340 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 05:09:59,340 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 05:09:59,340 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 05:09:59,340 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 05:09:59,340 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 05:09:59,340 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 05:09:59,341 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 05:09:59,341 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 05:09:59,341 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 05:09:59,341 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-03 05:09:59,341 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 05:09:59,341 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-03 05:09:59,341 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_ec0c54fe-390b-4f6d-83bf-0872d090638c/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 -> 9b3e50b8f852fe8799cb6ad900b216b16bf216ae [2018-12-03 05:09:59,365 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 05:09:59,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 05:09:59,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 05:09:59,379 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 05:09:59,379 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 05:09:59,380 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-03 05:09:59,424 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/data/20672adbb/214ae58c61e34663a4d12cd405ee4fc2/FLAGd93ac2e89 [2018-12-03 05:09:59,733 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 05:09:59,734 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-03 05:09:59,739 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/data/20672adbb/214ae58c61e34663a4d12cd405ee4fc2/FLAGd93ac2e89 [2018-12-03 05:09:59,747 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/bin-2019/utaipan/data/20672adbb/214ae58c61e34663a4d12cd405ee4fc2 [2018-12-03 05:09:59,748 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 05:09:59,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 05:09:59,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 05:09:59,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 05:09:59,752 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 05:09:59,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:09:59" (1/1) ... [2018-12-03 05:09:59,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e3c578c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:59, skipping insertion in model container [2018-12-03 05:09:59,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:09:59" (1/1) ... [2018-12-03 05:09:59,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 05:09:59,775 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 05:09:59,914 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 05:09:59,919 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 05:09:59,944 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 05:09:59,971 INFO L195 MainTranslator]: Completed translation [2018-12-03 05:09:59,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:59 WrapperNode [2018-12-03 05:09:59,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 05:09:59,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 05:09:59,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 05:09:59,972 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 05:10:00,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:59" (1/1) ... [2018-12-03 05:10:00,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:59" (1/1) ... [2018-12-03 05:10:00,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 05:10:00,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 05:10:00,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 05:10:00,031 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 05:10:00,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:59" (1/1) ... [2018-12-03 05:10:00,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:59" (1/1) ... [2018-12-03 05:10:00,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:59" (1/1) ... [2018-12-03 05:10:00,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:59" (1/1) ... [2018-12-03 05:10:00,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:59" (1/1) ... [2018-12-03 05:10:00,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:59" (1/1) ... [2018-12-03 05:10:00,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:59" (1/1) ... [2018-12-03 05:10:00,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 05:10:00,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 05:10:00,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 05:10:00,046 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 05:10:00,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/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 [2018-12-03 05:10:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 05:10:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 05:10:00,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 05:10:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 05:10:00,078 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 05:10:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-03 05:10:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-12-03 05:10:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 05:10:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 05:10:00,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 05:10:00,217 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 05:10:00,217 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-03 05:10:00,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:10:00 BoogieIcfgContainer [2018-12-03 05:10:00,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 05:10:00,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 05:10:00,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 05:10:00,219 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 05:10:00,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 05:09:59" (1/3) ... [2018-12-03 05:10:00,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4fa585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:10:00, skipping insertion in model container [2018-12-03 05:10:00,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:09:59" (2/3) ... [2018-12-03 05:10:00,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4fa585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:10:00, skipping insertion in model container [2018-12-03 05:10:00,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:10:00" (3/3) ... [2018-12-03 05:10:00,221 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-12-03 05:10:00,227 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 05:10:00,231 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-12-03 05:10:00,239 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-12-03 05:10:00,253 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-03 05:10:00,253 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 05:10:00,253 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-03 05:10:00,253 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 05:10:00,253 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 05:10:00,253 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 05:10:00,253 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 05:10:00,254 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 05:10:00,254 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 05:10:00,261 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-03 05:10:00,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-03 05:10:00,266 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:10:00,268 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:10:00,269 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-12-03 05:10:00,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:10:00,272 INFO L82 PathProgramCache]: Analyzing trace with hash 539516341, now seen corresponding path program 1 times [2018-12-03 05:10:00,275 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 05:10:00,275 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/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 [2018-12-03 05:10:00,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:10:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:10:00,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:10:00,349 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2018-12-03 05:10:00,356 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 12 treesize of output 11 [2018-12-03 05:10:00,356 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 05:10:00,364 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 05:10:00,368 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. [2018-12-03 05:10:00,369 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2018-12-03 05:10:00,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:10:00,378 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 05:10:00,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:10:00,380 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 05:10:00,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 05:10:00,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 05:10:00,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:10:00,392 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-12-03 05:10:00,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:10:00,438 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-03 05:10:00,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 05:10:00,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-03 05:10:00,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:10:00,444 INFO L225 Difference]: With dead ends: 18 [2018-12-03 05:10:00,445 INFO L226 Difference]: Without dead ends: 15 [2018-12-03 05:10:00,446 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 [2018-12-03 05:10:00,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-03 05:10:00,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-03 05:10:00,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-03 05:10:00,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-12-03 05:10:00,465 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2018-12-03 05:10:00,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:10:00,465 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-12-03 05:10:00,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 05:10:00,465 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-12-03 05:10:00,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-03 05:10:00,466 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:10:00,466 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:10:00,466 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-12-03 05:10:00,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:10:00,466 INFO L82 PathProgramCache]: Analyzing trace with hash 539516342, now seen corresponding path program 1 times [2018-12-03 05:10:00,467 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 05:10:00,467 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/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 [2018-12-03 05:10:00,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:10:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:10:00,500 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:10:00,516 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 [2018-12-03 05:10:00,521 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 05:10:00,522 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 [2018-12-03 05:10:00,522 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 05:10:00,529 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 05:10:00,539 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 [2018-12-03 05:10:00,540 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-03 05:10:00,545 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. [2018-12-03 05:10:00,546 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2018-12-03 05:10:00,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:10:00,554 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 05:10:00,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:10:00,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 05:10:00,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 05:10:00,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 05:10:00,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:10:00,557 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 3 states. [2018-12-03 05:10:00,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:10:00,581 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-12-03 05:10:00,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 05:10:00,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-03 05:10:00,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:10:00,582 INFO L225 Difference]: With dead ends: 12 [2018-12-03 05:10:00,582 INFO L226 Difference]: Without dead ends: 12 [2018-12-03 05:10:00,583 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 [2018-12-03 05:10:00,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-03 05:10:00,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-03 05:10:00,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-03 05:10:00,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-12-03 05:10:00,585 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2018-12-03 05:10:00,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:10:00,585 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-12-03 05:10:00,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 05:10:00,585 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-12-03 05:10:00,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-03 05:10:00,585 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:10:00,586 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:10:00,586 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-12-03 05:10:00,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:10:00,586 INFO L82 PathProgramCache]: Analyzing trace with hash -190928391, now seen corresponding path program 1 times [2018-12-03 05:10:00,586 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 05:10:00,587 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ec0c54fe-390b-4f6d-83bf-0872d090638c/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 [2018-12-03 05:10:00,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:10:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 05:10:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 05:10:00,682 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 05:10:00,690 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-03 05:10:00,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 05:10:00 BoogieIcfgContainer [2018-12-03 05:10:00,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 05:10:00,698 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 05:10:00,698 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 05:10:00,698 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 05:10:00,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:10:00" (3/4) ... [2018-12-03 05:10:00,700 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-03 05:10:00,701 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 05:10:00,701 INFO L168 Benchmark]: Toolchain (without parser) took 952.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -109.5 MB). Peak memory consumption was 43.6 MB. Max. memory is 11.5 GB. [2018-12-03 05:10:00,702 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-12-03 05:10:00,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.52 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. [2018-12-03 05:10:00,702 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -224.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-12-03 05:10:00,703 INFO L168 Benchmark]: Boogie Preprocessor took 14.06 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. [2018-12-03 05:10:00,703 INFO L168 Benchmark]: RCFGBuilder took 171.87 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. [2018-12-03 05:10:00,703 INFO L168 Benchmark]: TraceAbstraction took 479.80 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: 70.2 MB). Peak memory consumption was 70.2 MB. Max. memory is 11.5 GB. [2018-12-03 05:10:00,704 INFO L168 Benchmark]: Witness Printer took 3.07 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. [2018-12-03 05:10:00,705 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 221.52 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 59.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -224.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.06 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 171.87 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 479.80 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: 70.2 MB). Peak memory consumption was 70.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.07 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. * 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: 619]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 619. Possible FailurePath: [L621-L628] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L629] data.p0 = malloc(37U) VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L630] data.str.p2 = &data VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L631] data.str.c[1] = sizeof data.str.p1 VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L632] return 0; [L632] return 0; VAL [\result=0, malloc(37U)={-2147483648:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 7 error locations. UNSAFE Result, 0.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 9 SDslu, 12 SDs, 0 SdLazy, 16 SolverSat, 4 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=21occurred 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, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 1 QuantifiedInterpolants, 204 SizeOfPredicates, 2 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 6 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...