./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_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/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_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/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_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/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_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/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 [2018-12-09 12:17:36,494 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 12:17:36,494 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 12:17:36,500 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 12:17:36,500 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 12:17:36,501 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 12:17:36,501 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 12:17:36,502 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 12:17:36,503 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 12:17:36,503 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 12:17:36,504 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 12:17:36,504 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 12:17:36,505 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 12:17:36,505 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 12:17:36,505 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 12:17:36,506 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 12:17:36,506 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 12:17:36,507 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 12:17:36,508 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 12:17:36,509 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 12:17:36,509 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 12:17:36,510 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 12:17:36,511 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 12:17:36,511 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 12:17:36,511 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 12:17:36,512 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 12:17:36,512 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 12:17:36,512 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 12:17:36,513 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 12:17:36,513 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 12:17:36,513 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 12:17:36,514 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 12:17:36,514 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 12:17:36,514 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 12:17:36,515 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 12:17:36,515 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 12:17:36,515 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-09 12:17:36,522 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 12:17:36,522 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 12:17:36,522 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 12:17:36,523 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 12:17:36,523 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 12:17:36,523 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 12:17:36,523 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 12:17:36,523 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 12:17:36,523 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 12:17:36,523 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 12:17:36,523 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 12:17:36,523 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 12:17:36,523 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 12:17:36,524 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 12:17:36,524 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 12:17:36,524 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 12:17:36,524 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 12:17:36,524 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 12:17:36,524 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 12:17:36,524 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 12:17:36,524 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 12:17:36,524 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 12:17:36,525 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 12:17:36,525 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 12:17:36,525 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 12:17:36,525 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 12:17:36,525 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 12:17:36,525 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 12:17:36,525 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 12:17:36,525 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 12:17:36,525 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 12:17:36,525 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 12:17:36,525 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 12:17:36,526 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 12:17:36,526 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 12:17:36,526 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 12:17:36,526 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_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/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 [2018-12-09 12:17:36,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 12:17:36,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 12:17:36,550 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 12:17:36,551 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 12:17:36,551 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 12:17:36,552 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-09 12:17:36,587 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/data/80e4c5026/796229668b8343ee8112a9e1c96ca814/FLAGed2104fb2 [2018-12-09 12:17:36,909 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 12:17:36,909 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-09 12:17:36,915 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/data/80e4c5026/796229668b8343ee8112a9e1c96ca814/FLAGed2104fb2 [2018-12-09 12:17:36,923 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/data/80e4c5026/796229668b8343ee8112a9e1c96ca814 [2018-12-09 12:17:36,926 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 12:17:36,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 12:17:36,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 12:17:36,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 12:17:36,929 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 12:17:36,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:17:36" (1/1) ... [2018-12-09 12:17:36,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770470f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:36, skipping insertion in model container [2018-12-09 12:17:36,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:17:36" (1/1) ... [2018-12-09 12:17:36,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 12:17:36,959 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 12:17:37,101 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:17:37,105 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 12:17:37,160 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:17:37,182 INFO L195 MainTranslator]: Completed translation [2018-12-09 12:17:37,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:37 WrapperNode [2018-12-09 12:17:37,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 12:17:37,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 12:17:37,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 12:17:37,183 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 12:17:37,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:37" (1/1) ... [2018-12-09 12:17:37,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:37" (1/1) ... [2018-12-09 12:17:37,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 12:17:37,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 12:17:37,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 12:17:37,200 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 12:17:37,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:37" (1/1) ... [2018-12-09 12:17:37,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:37" (1/1) ... [2018-12-09 12:17:37,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:37" (1/1) ... [2018-12-09 12:17:37,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:37" (1/1) ... [2018-12-09 12:17:37,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:37" (1/1) ... [2018-12-09 12:17:37,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:37" (1/1) ... [2018-12-09 12:17:37,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:37" (1/1) ... [2018-12-09 12:17:37,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 12:17:37,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 12:17:37,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 12:17:37,213 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 12:17:37,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/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 [2018-12-09 12:17:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 12:17:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 12:17:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 12:17:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 12:17:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 12:17:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 12:17:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-09 12:17:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 12:17:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 12:17:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 12:17:37,344 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 12:17:37,344 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 12:17:37,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:17:37 BoogieIcfgContainer [2018-12-09 12:17:37,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 12:17:37,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 12:17:37,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 12:17:37,347 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 12:17:37,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:17:36" (1/3) ... [2018-12-09 12:17:37,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fec406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:17:37, skipping insertion in model container [2018-12-09 12:17:37,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:37" (2/3) ... [2018-12-09 12:17:37,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fec406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:17:37, skipping insertion in model container [2018-12-09 12:17:37,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:17:37" (3/3) ... [2018-12-09 12:17:37,350 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-12-09 12:17:37,356 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 12:17:37,360 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-12-09 12:17:37,369 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-12-09 12:17:37,384 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 12:17:37,384 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-09 12:17:37,384 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 12:17:37,384 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 12:17:37,384 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 12:17:37,384 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 12:17:37,385 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 12:17:37,385 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 12:17:37,393 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-09 12:17:37,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 12:17:37,399 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:17:37,400 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:17:37,401 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2018-12-09 12:17:37,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:17:37,404 INFO L82 PathProgramCache]: Analyzing trace with hash 539516341, now seen corresponding path program 1 times [2018-12-09 12:17:37,406 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 12:17:37,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:17:37,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:17:37,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:17:37,433 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 12:17:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:17:37,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:17:37,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:17:37,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 12:17:37,497 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 12:17:37,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 12:17:37,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 12:17:37,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 12:17:37,509 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-12-09 12:17:37,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:17:37,536 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-09 12:17:37,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 12:17:37,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-09 12:17:37,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:17:37,543 INFO L225 Difference]: With dead ends: 18 [2018-12-09 12:17:37,543 INFO L226 Difference]: Without dead ends: 15 [2018-12-09 12:17:37,544 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 [2018-12-09 12:17:37,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-09 12:17:37,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-09 12:17:37,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-09 12:17:37,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-12-09 12:17:37,563 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2018-12-09 12:17:37,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:17:37,563 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-12-09 12:17:37,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 12:17:37,564 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-12-09 12:17:37,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 12:17:37,564 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:17:37,564 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:17:37,564 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2018-12-09 12:17:37,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:17:37,565 INFO L82 PathProgramCache]: Analyzing trace with hash 539516342, now seen corresponding path program 1 times [2018-12-09 12:17:37,565 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 12:17:37,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:17:37,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:17:37,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:17:37,566 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 12:17:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:17:37,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:17:37,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:17:37,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 12:17:37,604 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 12:17:37,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 12:17:37,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 12:17:37,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 12:17:37,605 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 3 states. [2018-12-09 12:17:37,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:17:37,616 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-12-09 12:17:37,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 12:17:37,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-09 12:17:37,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:17:37,616 INFO L225 Difference]: With dead ends: 12 [2018-12-09 12:17:37,616 INFO L226 Difference]: Without dead ends: 12 [2018-12-09 12:17:37,617 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 [2018-12-09 12:17:37,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-09 12:17:37,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-09 12:17:37,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-09 12:17:37,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-12-09 12:17:37,618 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2018-12-09 12:17:37,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:17:37,618 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-12-09 12:17:37,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 12:17:37,619 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-12-09 12:17:37,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 12:17:37,619 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:17:37,619 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:17:37,619 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2018-12-09 12:17:37,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:17:37,619 INFO L82 PathProgramCache]: Analyzing trace with hash -190928391, now seen corresponding path program 1 times [2018-12-09 12:17:37,619 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 12:17:37,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:17:37,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:17:37,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:17:37,620 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 12:17:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:17:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:17:37,653 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 12:17:37,660 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-09 12:17:37,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:17:37 BoogieIcfgContainer [2018-12-09 12:17:37,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 12:17:37,668 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 12:17:37,668 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 12:17:37,668 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 12:17:37,668 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:17:37" (3/4) ... [2018-12-09 12:17:37,670 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 12:17:37,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 12:17:37,671 INFO L168 Benchmark]: Toolchain (without parser) took 744.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 947.0 MB in the beginning and 1.0 GB in the end (delta: -85.3 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-12-09 12:17:37,672 INFO L168 Benchmark]: CDTParser took 0.13 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. [2018-12-09 12:17:37,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-12-09 12:17:37,672 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.12 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. [2018-12-09 12:17:37,673 INFO L168 Benchmark]: Boogie Preprocessor took 12.26 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. [2018-12-09 12:17:37,673 INFO L168 Benchmark]: RCFGBuilder took 132.12 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-12-09 12:17:37,673 INFO L168 Benchmark]: TraceAbstraction took 322.08 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: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2018-12-09 12:17:37,674 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. [2018-12-09 12:17:37,675 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 255.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.12 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. * Boogie Preprocessor took 12.26 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 132.12 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 322.08 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: 40.3 MB). Peak memory consumption was 40.3 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: 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, 0.2s 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 [2018-12-09 12:17:39,045 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 12:17:39,046 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 12:17:39,053 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 12:17:39,053 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 12:17:39,053 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 12:17:39,054 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 12:17:39,055 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 12:17:39,056 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 12:17:39,056 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 12:17:39,056 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 12:17:39,057 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 12:17:39,057 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 12:17:39,058 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 12:17:39,058 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 12:17:39,059 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 12:17:39,059 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 12:17:39,060 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 12:17:39,061 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 12:17:39,061 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 12:17:39,062 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 12:17:39,063 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 12:17:39,064 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 12:17:39,064 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 12:17:39,064 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 12:17:39,064 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 12:17:39,065 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 12:17:39,065 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 12:17:39,066 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 12:17:39,066 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 12:17:39,066 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 12:17:39,067 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 12:17:39,067 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 12:17:39,067 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 12:17:39,068 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 12:17:39,068 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 12:17:39,068 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2018-12-09 12:17:39,075 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 12:17:39,076 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 12:17:39,076 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 12:17:39,076 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 12:17:39,076 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 12:17:39,076 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 12:17:39,077 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 12:17:39,077 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 12:17:39,077 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 12:17:39,077 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 12:17:39,077 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 12:17:39,077 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 12:17:39,078 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 12:17:39,078 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 12:17:39,078 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 12:17:39,078 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 12:17:39,078 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 12:17:39,078 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 12:17:39,078 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 12:17:39,078 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 12:17:39,078 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 12:17:39,079 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 12:17:39,079 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 12:17:39,079 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 12:17:39,079 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 12:17:39,079 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 12:17:39,079 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 12:17:39,079 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 12:17:39,079 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 12:17:39,079 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 12:17:39,080 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 12:17:39,080 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 12:17:39,080 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 12:17:39,080 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 12:17:39,080 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 12:17:39,080 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 12:17:39,080 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_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/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 [2018-12-09 12:17:39,098 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 12:17:39,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 12:17:39,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 12:17:39,110 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 12:17:39,110 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 12:17:39,110 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-09 12:17:39,146 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/data/0537d8d1c/b9f546b523ad481ebb290fccb714e356/FLAG37e10dfcf [2018-12-09 12:17:39,505 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 12:17:39,505 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-09 12:17:39,511 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/data/0537d8d1c/b9f546b523ad481ebb290fccb714e356/FLAG37e10dfcf [2018-12-09 12:17:39,894 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/bin-2019/utaipan/data/0537d8d1c/b9f546b523ad481ebb290fccb714e356 [2018-12-09 12:17:39,899 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 12:17:39,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 12:17:39,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 12:17:39,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 12:17:39,908 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 12:17:39,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:17:39" (1/1) ... [2018-12-09 12:17:39,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31fb8f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:39, skipping insertion in model container [2018-12-09 12:17:39,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:17:39" (1/1) ... [2018-12-09 12:17:39,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 12:17:39,932 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 12:17:40,068 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:17:40,073 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 12:17:40,099 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:17:40,125 INFO L195 MainTranslator]: Completed translation [2018-12-09 12:17:40,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:40 WrapperNode [2018-12-09 12:17:40,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 12:17:40,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 12:17:40,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 12:17:40,126 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 12:17:40,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:40" (1/1) ... [2018-12-09 12:17:40,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:40" (1/1) ... [2018-12-09 12:17:40,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 12:17:40,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 12:17:40,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 12:17:40,175 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 12:17:40,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:40" (1/1) ... [2018-12-09 12:17:40,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:40" (1/1) ... [2018-12-09 12:17:40,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:40" (1/1) ... [2018-12-09 12:17:40,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:40" (1/1) ... [2018-12-09 12:17:40,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:40" (1/1) ... [2018-12-09 12:17:40,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:40" (1/1) ... [2018-12-09 12:17:40,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:40" (1/1) ... [2018-12-09 12:17:40,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 12:17:40,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 12:17:40,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 12:17:40,189 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 12:17:40,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/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 [2018-12-09 12:17:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 12:17:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 12:17:40,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 12:17:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 12:17:40,219 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 12:17:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-09 12:17:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-12-09 12:17:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 12:17:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 12:17:40,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 12:17:40,353 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 12:17:40,353 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 12:17:40,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:17:40 BoogieIcfgContainer [2018-12-09 12:17:40,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 12:17:40,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 12:17:40,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 12:17:40,356 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 12:17:40,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:17:39" (1/3) ... [2018-12-09 12:17:40,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424991ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:17:40, skipping insertion in model container [2018-12-09 12:17:40,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:40" (2/3) ... [2018-12-09 12:17:40,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424991ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:17:40, skipping insertion in model container [2018-12-09 12:17:40,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:17:40" (3/3) ... [2018-12-09 12:17:40,357 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-12-09 12:17:40,363 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 12:17:40,367 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-12-09 12:17:40,378 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-12-09 12:17:40,392 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 12:17:40,392 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 12:17:40,392 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-09 12:17:40,392 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 12:17:40,392 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 12:17:40,392 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 12:17:40,392 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 12:17:40,392 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 12:17:40,393 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 12:17:40,400 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-09 12:17:40,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 12:17:40,405 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:17:40,405 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:17:40,407 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-12-09 12:17:40,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:17:40,410 INFO L82 PathProgramCache]: Analyzing trace with hash 539516341, now seen corresponding path program 1 times [2018-12-09 12:17:40,412 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 12:17:40,413 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/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 [2018-12-09 12:17:40,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:17:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:17:40,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:17:40,485 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 [2018-12-09 12:17:40,493 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 [2018-12-09 12:17:40,493 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 12:17:40,502 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:17:40,507 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. [2018-12-09 12:17:40,508 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2018-12-09 12:17:40,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:17:40,517 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 12:17:40,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:17:40,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 12:17:40,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 12:17:40,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 12:17:40,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 12:17:40,531 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-12-09 12:17:40,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:17:40,577 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-09 12:17:40,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 12:17:40,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-09 12:17:40,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:17:40,583 INFO L225 Difference]: With dead ends: 18 [2018-12-09 12:17:40,584 INFO L226 Difference]: Without dead ends: 15 [2018-12-09 12:17:40,585 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 [2018-12-09 12:17:40,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-09 12:17:40,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-09 12:17:40,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-09 12:17:40,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-12-09 12:17:40,604 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2018-12-09 12:17:40,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:17:40,604 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-12-09 12:17:40,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 12:17:40,604 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-12-09 12:17:40,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 12:17:40,604 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:17:40,604 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:17:40,605 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-12-09 12:17:40,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:17:40,605 INFO L82 PathProgramCache]: Analyzing trace with hash 539516342, now seen corresponding path program 1 times [2018-12-09 12:17:40,605 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 12:17:40,605 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/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 [2018-12-09 12:17:40,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:17:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:17:40,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:17:40,657 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 [2018-12-09 12:17:40,661 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 12:17:40,662 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 [2018-12-09 12:17:40,663 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 12:17:40,670 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:17:40,680 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 [2018-12-09 12:17:40,680 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 12:17:40,686 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. [2018-12-09 12:17:40,687 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2018-12-09 12:17:40,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:17:40,696 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 12:17:40,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:17:40,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 12:17:40,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 12:17:40,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 12:17:40,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 12:17:40,699 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 3 states. [2018-12-09 12:17:40,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:17:40,734 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-12-09 12:17:40,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 12:17:40,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-09 12:17:40,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:17:40,735 INFO L225 Difference]: With dead ends: 12 [2018-12-09 12:17:40,735 INFO L226 Difference]: Without dead ends: 12 [2018-12-09 12:17:40,735 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 [2018-12-09 12:17:40,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-09 12:17:40,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-09 12:17:40,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-09 12:17:40,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-12-09 12:17:40,737 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2018-12-09 12:17:40,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:17:40,737 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-12-09 12:17:40,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 12:17:40,737 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-12-09 12:17:40,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 12:17:40,737 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:17:40,737 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:17:40,738 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-12-09 12:17:40,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:17:40,738 INFO L82 PathProgramCache]: Analyzing trace with hash -190928391, now seen corresponding path program 1 times [2018-12-09 12:17:40,738 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 12:17:40,738 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49fd9eab-7190-48ac-a3c1-abe0b8b3f6b8/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 [2018-12-09 12:17:40,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:17:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:17:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:17:40,834 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 12:17:40,842 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-09 12:17:40,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:17:40 BoogieIcfgContainer [2018-12-09 12:17:40,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 12:17:40,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 12:17:40,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 12:17:40,851 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 12:17:40,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:17:40" (3/4) ... [2018-12-09 12:17:40,854 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 12:17:40,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 12:17:40,855 INFO L168 Benchmark]: Toolchain (without parser) took 955.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -76.6 MB). Peak memory consumption was 48.7 MB. Max. memory is 11.5 GB. [2018-12-09 12:17:40,856 INFO L168 Benchmark]: CDTParser took 0.13 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. [2018-12-09 12:17:40,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.34 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. [2018-12-09 12:17:40,856 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -190.4 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-12-09 12:17:40,857 INFO L168 Benchmark]: Boogie Preprocessor took 13.69 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. [2018-12-09 12:17:40,857 INFO L168 Benchmark]: RCFGBuilder took 164.61 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2018-12-09 12:17:40,857 INFO L168 Benchmark]: TraceAbstraction took 497.02 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: 69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 11.5 GB. [2018-12-09 12:17:40,858 INFO L168 Benchmark]: Witness Printer took 3.44 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. [2018-12-09 12:17:40,859 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 222.34 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 49.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -190.4 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.69 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. * RCFGBuilder took 164.61 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 497.02 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: 69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.44 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: 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...