./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d5ace2e0a5233a1a069e0f7fcf08b00fb84e1f6e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 17:47:49,328 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 17:47:49,329 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 17:47:49,335 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 17:47:49,335 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 17:47:49,336 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 17:47:49,336 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 17:47:49,337 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 17:47:49,338 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 17:47:49,338 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 17:47:49,339 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 17:47:49,339 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 17:47:49,339 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 17:47:49,340 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 17:47:49,340 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 17:47:49,341 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 17:47:49,341 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 17:47:49,342 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 17:47:49,343 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 17:47:49,344 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 17:47:49,344 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 17:47:49,345 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 17:47:49,346 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 17:47:49,346 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 17:47:49,346 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 17:47:49,346 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 17:47:49,347 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 17:47:49,347 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 17:47:49,348 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 17:47:49,348 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 17:47:49,348 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 17:47:49,349 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 17:47:49,349 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 17:47:49,349 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 17:47:49,349 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 17:47:49,350 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 17:47:49,350 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-09 17:47:49,357 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 17:47:49,357 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 17:47:49,358 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 17:47:49,358 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 17:47:49,358 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 17:47:49,358 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 17:47:49,358 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 17:47:49,358 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 17:47:49,358 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 17:47:49,358 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 17:47:49,358 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 17:47:49,359 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 17:47:49,359 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 17:47:49,359 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 17:47:49,359 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 17:47:49,359 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 17:47:49,359 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 17:47:49,359 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 17:47:49,360 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 17:47:49,360 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 17:47:49,360 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 17:47:49,360 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 17:47:49,360 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 17:47:49,360 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 17:47:49,360 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 17:47:49,360 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 17:47:49,360 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 17:47:49,360 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 17:47:49,360 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 17:47:49,361 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 17:47:49,361 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 17:47:49,361 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 17:47:49,361 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 17:47:49,361 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 17:47:49,361 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 17:47:49,361 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 17:47:49,361 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_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5ace2e0a5233a1a069e0f7fcf08b00fb84e1f6e [2018-12-09 17:47:49,380 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 17:47:49,388 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 17:47:49,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 17:47:49,392 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 17:47:49,392 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 17:47:49,393 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/bin-2019/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test20_true-valid-memsafety_true-termination.i [2018-12-09 17:47:49,434 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/bin-2019/utaipan/data/3508a77ad/285659cc648041af9aea011d508cffab/FLAGfad404733 [2018-12-09 17:47:49,853 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 17:47:49,854 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/sv-benchmarks/c/ldv-memsafety/memleaks_test20_true-valid-memsafety_true-termination.i [2018-12-09 17:47:49,861 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/bin-2019/utaipan/data/3508a77ad/285659cc648041af9aea011d508cffab/FLAGfad404733 [2018-12-09 17:47:49,870 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/bin-2019/utaipan/data/3508a77ad/285659cc648041af9aea011d508cffab [2018-12-09 17:47:49,871 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 17:47:49,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 17:47:49,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 17:47:49,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 17:47:49,875 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 17:47:49,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:47:49" (1/1) ... [2018-12-09 17:47:49,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@720ba8e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:49, skipping insertion in model container [2018-12-09 17:47:49,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:47:49" (1/1) ... [2018-12-09 17:47:49,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 17:47:49,911 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 17:47:50,163 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:47:50,171 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 17:47:50,205 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:47:50,237 INFO L195 MainTranslator]: Completed translation [2018-12-09 17:47:50,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:50 WrapperNode [2018-12-09 17:47:50,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 17:47:50,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 17:47:50,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 17:47:50,238 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 17:47:50,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:50" (1/1) ... [2018-12-09 17:47:50,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:50" (1/1) ... [2018-12-09 17:47:50,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 17:47:50,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 17:47:50,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 17:47:50,260 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 17:47:50,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:50" (1/1) ... [2018-12-09 17:47:50,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:50" (1/1) ... [2018-12-09 17:47:50,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:50" (1/1) ... [2018-12-09 17:47:50,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:50" (1/1) ... [2018-12-09 17:47:50,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:50" (1/1) ... [2018-12-09 17:47:50,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:50" (1/1) ... [2018-12-09 17:47:50,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:50" (1/1) ... [2018-12-09 17:47:50,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 17:47:50,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 17:47:50,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 17:47:50,274 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 17:47:50,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/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 17:47:50,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_device [2018-12-09 17:47:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_device [2018-12-09 17:47:50,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 17:47:50,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-12-09 17:47:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-12-09 17:47:50,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 17:47:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 17:47:50,305 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_20 [2018-12-09 17:47:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_20 [2018-12-09 17:47:50,305 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 17:47:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 17:47:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_device [2018-12-09 17:47:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_device [2018-12-09 17:47:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 17:47:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-09 17:47:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-12-09 17:47:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-12-09 17:47:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure free_20 [2018-12-09 17:47:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure free_20 [2018-12-09 17:47:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 17:47:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 17:47:50,424 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 17:47:50,424 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 17:47:50,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:47:50 BoogieIcfgContainer [2018-12-09 17:47:50,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 17:47:50,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 17:47:50,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 17:47:50,426 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 17:47:50,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:47:49" (1/3) ... [2018-12-09 17:47:50,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7131d9bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:47:50, skipping insertion in model container [2018-12-09 17:47:50,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:50" (2/3) ... [2018-12-09 17:47:50,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7131d9bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:47:50, skipping insertion in model container [2018-12-09 17:47:50,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:47:50" (3/3) ... [2018-12-09 17:47:50,428 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test20_true-valid-memsafety_true-termination.i [2018-12-09 17:47:50,434 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 17:47:50,438 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-09 17:47:50,446 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-09 17:47:50,461 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 17:47:50,461 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-09 17:47:50,461 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 17:47:50,461 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 17:47:50,461 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 17:47:50,461 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 17:47:50,461 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 17:47:50,461 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 17:47:50,471 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-12-09 17:47:50,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 17:47:50,476 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:47:50,476 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 17:47:50,478 INFO L423 AbstractCegarLoop]: === Iteration 1 === [free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 17:47:50,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:47:50,481 INFO L82 PathProgramCache]: Analyzing trace with hash 205795401, now seen corresponding path program 1 times [2018-12-09 17:47:50,482 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:47:50,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:47:50,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:47:50,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:47:50,514 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:47:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:47:50,598 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 17:47:50,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:47:50,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 17:47:50,599 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:47:50,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 17:47:50,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 17:47:50,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 17:47:50,612 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 5 states. [2018-12-09 17:47:50,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:47:50,634 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2018-12-09 17:47:50,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 17:47:50,635 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-12-09 17:47:50,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:47:50,642 INFO L225 Difference]: With dead ends: 48 [2018-12-09 17:47:50,642 INFO L226 Difference]: Without dead ends: 45 [2018-12-09 17:47:50,643 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 17:47:50,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-09 17:47:50,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2018-12-09 17:47:50,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-09 17:47:50,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2018-12-09 17:47:50,667 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 24 [2018-12-09 17:47:50,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:47:50,667 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2018-12-09 17:47:50,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 17:47:50,667 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-12-09 17:47:50,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 17:47:50,668 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:47:50,668 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 17:47:50,668 INFO L423 AbstractCegarLoop]: === Iteration 2 === [free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 17:47:50,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:47:50,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1713347210, now seen corresponding path program 1 times [2018-12-09 17:47:50,668 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:47:50,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:47:50,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:47:50,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:47:50,670 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:47:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:47:50,744 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 17:47:50,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:47:50,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 17:47:50,744 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:47:50,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 17:47:50,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 17:47:50,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 17:47:50,746 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 7 states. [2018-12-09 17:47:50,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:47:50,891 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2018-12-09 17:47:50,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 17:47:50,892 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-09 17:47:50,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:47:50,892 INFO L225 Difference]: With dead ends: 58 [2018-12-09 17:47:50,893 INFO L226 Difference]: Without dead ends: 58 [2018-12-09 17:47:50,893 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-09 17:47:50,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-12-09 17:47:50,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 53. [2018-12-09 17:47:50,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-12-09 17:47:50,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2018-12-09 17:47:50,897 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 24 [2018-12-09 17:47:50,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:47:50,897 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2018-12-09 17:47:50,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 17:47:50,897 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2018-12-09 17:47:50,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 17:47:50,898 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:47:50,898 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 17:47:50,898 INFO L423 AbstractCegarLoop]: === Iteration 3 === [free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 17:47:50,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:47:50,898 INFO L82 PathProgramCache]: Analyzing trace with hash -2003892250, now seen corresponding path program 1 times [2018-12-09 17:47:50,898 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:47:50,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:47:50,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:47:50,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:47:50,900 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:47:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:47:50,999 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 17:47:50,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:47:51,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 17:47:51,000 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:47:51,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 17:47:51,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 17:47:51,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-09 17:47:51,000 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 11 states. [2018-12-09 17:47:51,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:47:51,111 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2018-12-09 17:47:51,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 17:47:51,111 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 28 [2018-12-09 17:47:51,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:47:51,112 INFO L225 Difference]: With dead ends: 53 [2018-12-09 17:47:51,112 INFO L226 Difference]: Without dead ends: 53 [2018-12-09 17:47:51,112 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2018-12-09 17:47:51,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-09 17:47:51,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2018-12-09 17:47:51,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-09 17:47:51,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2018-12-09 17:47:51,116 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 28 [2018-12-09 17:47:51,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:47:51,116 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2018-12-09 17:47:51,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 17:47:51,116 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2018-12-09 17:47:51,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 17:47:51,117 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:47:51,117 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 17:47:51,117 INFO L423 AbstractCegarLoop]: === Iteration 4 === [free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 17:47:51,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:47:51,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1991117550, now seen corresponding path program 1 times [2018-12-09 17:47:51,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:47:51,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:47:51,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:47:51,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:47:51,119 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:47:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:47:51,183 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 17:47:51,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:47:51,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 17:47:51,183 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:47:51,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 17:47:51,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 17:47:51,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-09 17:47:51,184 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 11 states. [2018-12-09 17:47:51,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:47:51,297 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2018-12-09 17:47:51,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 17:47:51,298 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2018-12-09 17:47:51,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:47:51,298 INFO L225 Difference]: With dead ends: 64 [2018-12-09 17:47:51,298 INFO L226 Difference]: Without dead ends: 64 [2018-12-09 17:47:51,299 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2018-12-09 17:47:51,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-12-09 17:47:51,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-12-09 17:47:51,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-12-09 17:47:51,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-12-09 17:47:51,303 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 29 [2018-12-09 17:47:51,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:47:51,304 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-12-09 17:47:51,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 17:47:51,304 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-12-09 17:47:51,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 17:47:51,305 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:47:51,305 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 17:47:51,305 INFO L423 AbstractCegarLoop]: === Iteration 5 === [free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 17:47:51,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:47:51,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1895025521, now seen corresponding path program 1 times [2018-12-09 17:47:51,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:47:51,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:47:51,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:47:51,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:47:51,307 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:47:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:47:51,333 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 17:47:51,333 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:47:51,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 17:47:51,333 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:47:51,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 17:47:51,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 17:47:51,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 17:47:51,334 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 5 states. [2018-12-09 17:47:51,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:47:51,341 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-12-09 17:47:51,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 17:47:51,341 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-12-09 17:47:51,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:47:51,341 INFO L225 Difference]: With dead ends: 51 [2018-12-09 17:47:51,342 INFO L226 Difference]: Without dead ends: 51 [2018-12-09 17:47:51,342 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 17:47:51,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-09 17:47:51,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-12-09 17:47:51,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-09 17:47:51,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-12-09 17:47:51,345 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 29 [2018-12-09 17:47:51,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:47:51,345 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-12-09 17:47:51,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 17:47:51,345 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-12-09 17:47:51,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 17:47:51,346 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:47:51,346 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 17:47:51,346 INFO L423 AbstractCegarLoop]: === Iteration 6 === [free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 17:47:51,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:47:51,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1748662880, now seen corresponding path program 1 times [2018-12-09 17:47:51,346 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:47:51,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:47:51,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:47:51,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:47:51,347 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:47:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:47:51,363 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 17:47:51,363 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:47:51,363 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 17:47:51,363 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:47:51,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 17:47:51,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 17:47:51,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 17:47:51,364 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 3 states. [2018-12-09 17:47:51,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:47:51,384 INFO L93 Difference]: Finished difference Result 55 states and 54 transitions. [2018-12-09 17:47:51,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 17:47:51,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-12-09 17:47:51,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:47:51,385 INFO L225 Difference]: With dead ends: 55 [2018-12-09 17:47:51,385 INFO L226 Difference]: Without dead ends: 36 [2018-12-09 17:47:51,385 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 17:47:51,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-09 17:47:51,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-12-09 17:47:51,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-09 17:47:51,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 35 transitions. [2018-12-09 17:47:51,387 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 35 transitions. Word has length 29 [2018-12-09 17:47:51,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:47:51,387 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 35 transitions. [2018-12-09 17:47:51,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 17:47:51,388 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 35 transitions. [2018-12-09 17:47:51,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 17:47:51,388 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:47:51,388 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 17:47:51,388 INFO L423 AbstractCegarLoop]: === Iteration 7 === [free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 17:47:51,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:47:51,388 INFO L82 PathProgramCache]: Analyzing trace with hash 49203072, now seen corresponding path program 1 times [2018-12-09 17:47:51,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:47:51,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:47:51,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:47:51,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:47:51,390 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:47:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:47:51,516 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 17:47:51,517 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:47:51,517 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-09 17:47:51,517 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:47:51,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-09 17:47:51,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-09 17:47:51,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-12-09 17:47:51,517 INFO L87 Difference]: Start difference. First operand 36 states and 35 transitions. Second operand 13 states. [2018-12-09 17:47:51,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:47:51,720 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2018-12-09 17:47:51,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 17:47:51,721 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 35 [2018-12-09 17:47:51,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:47:51,721 INFO L225 Difference]: With dead ends: 35 [2018-12-09 17:47:51,721 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 17:47:51,722 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2018-12-09 17:47:51,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 17:47:51,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 17:47:51,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 17:47:51,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 17:47:51,722 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2018-12-09 17:47:51,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:47:51,722 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 17:47:51,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-09 17:47:51,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 17:47:51,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 17:47:51,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:47:51 BoogieIcfgContainer [2018-12-09 17:47:51,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 17:47:51,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 17:47:51,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 17:47:51,726 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 17:47:51,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:47:50" (3/4) ... [2018-12-09 17:47:51,728 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 17:47:51,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure alloc_20 [2018-12-09 17:47:51,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2018-12-09 17:47:51,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 17:47:51,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure free_20 [2018-12-09 17:47:51,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_register_device [2018-12-09 17:47:51,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 17:47:51,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure entry_point [2018-12-09 17:47:51,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_get_device [2018-12-09 17:47:51,736 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-12-09 17:47:51,736 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 17:47:51,736 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 17:47:51,763 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_97f3e4c2-1eae-4b9a-b530-8448a6c5c586/bin-2019/utaipan/witness.graphml [2018-12-09 17:47:51,763 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 17:47:51,763 INFO L168 Benchmark]: Toolchain (without parser) took 1891.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 948.1 MB in the beginning and 817.7 MB in the end (delta: 130.4 MB). Peak memory consumption was 265.1 MB. Max. memory is 11.5 GB. [2018-12-09 17:47:51,764 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 17:47:51,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-12-09 17:47:51,765 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.82 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 17:47:51,765 INFO L168 Benchmark]: Boogie Preprocessor took 14.31 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 17:47:51,765 INFO L168 Benchmark]: RCFGBuilder took 150.07 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-12-09 17:47:51,765 INFO L168 Benchmark]: TraceAbstraction took 1300.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 821.2 MB in the end (delta: 260.6 MB). Peak memory consumption was 260.6 MB. Max. memory is 11.5 GB. [2018-12-09 17:47:51,766 INFO L168 Benchmark]: Witness Printer took 37.26 ms. Allocated memory is still 1.2 GB. Free memory was 821.2 MB in the beginning and 817.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 17:47:51,767 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 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 364.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.82 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.31 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 150.07 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1300.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 821.2 MB in the end (delta: 260.6 MB). Peak memory consumption was 260.6 MB. Max. memory is 11.5 GB. * Witness Printer took 37.26 ms. Allocated memory is still 1.2 GB. Free memory was 821.2 MB in the beginning and 817.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1466]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1466]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1476]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 41 locations, 3 error locations. SAFE Result, 1.2s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 254 SDtfs, 86 SDslu, 987 SDs, 0 SdLazy, 642 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 191 ConstructedInterpolants, 0 QuantifiedInterpolants, 19601 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...