./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/bin/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 c58b8bb1c431fc65db9a6b9db641f8c92b59fe24 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:23:59,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:59,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:59,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:59,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:59,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:59,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:59,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:59,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:59,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:59,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:59,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:59,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:59,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:59,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:59,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:59,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:59,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:59,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:59,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:59,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:59,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:59,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:59,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:59,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:59,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:59,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:59,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:59,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:59,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:59,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:59,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:59,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:59,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:59,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:59,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:59,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:59,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:59,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:59,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:59,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:59,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:23:59,348 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:59,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:59,349 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:59,349 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:59,350 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:59,350 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:59,350 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:23:59,350 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:59,350 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:59,350 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:23:59,350 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:23:59,351 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:59,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:23:59,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:23:59,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:59,354 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:59,354 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:23:59,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:23:59,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:59,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:59,355 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:23:59,355 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:23:59,355 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:23:59,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:59,355 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:59,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:59,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:59,356 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:59,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:59,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:59,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:59,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:59,357 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:23:59,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:23:59,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:59,357 INFO L138 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_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/bin/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 -> c58b8bb1c431fc65db9a6b9db641f8c92b59fe24 [2019-10-22 11:23:59,394 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:59,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:59,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:59,411 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:59,411 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:59,412 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2019-10-22 11:23:59,456 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/bin/utaipan/data/a5b225de1/785de3cb07934e4c980b6864265f4ad0/FLAG11d58d99b [2019-10-22 11:23:59,895 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:59,896 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2019-10-22 11:23:59,910 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/bin/utaipan/data/a5b225de1/785de3cb07934e4c980b6864265f4ad0/FLAG11d58d99b [2019-10-22 11:24:00,245 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/bin/utaipan/data/a5b225de1/785de3cb07934e4c980b6864265f4ad0 [2019-10-22 11:24:00,247 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:00,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:00,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:00,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:00,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:00,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:00" (1/1) ... [2019-10-22 11:24:00,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1faf48a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:00, skipping insertion in model container [2019-10-22 11:24:00,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:00" (1/1) ... [2019-10-22 11:24:00,262 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:00,306 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:00,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:00,721 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:00,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:00,886 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:00,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:00 WrapperNode [2019-10-22 11:24:00,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:00,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:00,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:00,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:00,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:00" (1/1) ... [2019-10-22 11:24:00,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:00" (1/1) ... [2019-10-22 11:24:00,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:00,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:00,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:00,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:00,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:00" (1/1) ... [2019-10-22 11:24:00,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:00" (1/1) ... [2019-10-22 11:24:00,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:00" (1/1) ... [2019-10-22 11:24:00,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:00" (1/1) ... [2019-10-22 11:24:00,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:00" (1/1) ... [2019-10-22 11:24:00,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:00" (1/1) ... [2019-10-22 11:24:00,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:00" (1/1) ... [2019-10-22 11:24:00,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:00,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:00,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:00,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:00,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/bin/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 [2019-10-22 11:24:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:24:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:24:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:24:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 11:24:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:01,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:01,347 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:01,347 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 11:24:01,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:01 BoogieIcfgContainer [2019-10-22 11:24:01,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:01,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:01,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:01,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:01,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:00" (1/3) ... [2019-10-22 11:24:01,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f487074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:01, skipping insertion in model container [2019-10-22 11:24:01,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:00" (2/3) ... [2019-10-22 11:24:01,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f487074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:01, skipping insertion in model container [2019-10-22 11:24:01,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:01" (3/3) ... [2019-10-22 11:24:01,356 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test3-2.i [2019-10-22 11:24:01,365 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:01,373 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-22 11:24:01,384 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-22 11:24:01,403 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:01,403 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:24:01,403 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:01,403 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:01,403 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:01,404 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:01,404 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:01,404 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:01,417 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-10-22 11:24:01,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:24:01,425 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:01,425 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:01,427 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-10-22 11:24:01,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:01,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965639, now seen corresponding path program 1 times [2019-10-22 11:24:01,442 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:01,442 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922070786] [2019-10-22 11:24:01,442 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:01,443 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:01,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:01,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:01,620 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922070786] [2019-10-22 11:24:01,621 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:01,622 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:24:01,622 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439285706] [2019-10-22 11:24:01,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:01,628 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:01,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:01,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:01,646 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2019-10-22 11:24:01,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:01,720 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-10-22 11:24:01,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:01,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-10-22 11:24:01,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:01,731 INFO L225 Difference]: With dead ends: 29 [2019-10-22 11:24:01,731 INFO L226 Difference]: Without dead ends: 25 [2019-10-22 11:24:01,732 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:24:01,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-22 11:24:01,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2019-10-22 11:24:01,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-22 11:24:01,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-10-22 11:24:01,765 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2019-10-22 11:24:01,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:01,765 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-10-22 11:24:01,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:01,765 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-10-22 11:24:01,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:24:01,766 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:01,766 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:01,766 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-10-22 11:24:01,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:01,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2019-10-22 11:24:01,767 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:01,767 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491781567] [2019-10-22 11:24:01,767 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:01,768 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:01,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:01,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:01,826 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491781567] [2019-10-22 11:24:01,827 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:01,827 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:24:01,827 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647805723] [2019-10-22 11:24:01,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:01,829 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:01,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:01,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:01,830 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2019-10-22 11:24:01,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:01,876 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-10-22 11:24:01,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:24:01,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-10-22 11:24:01,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:01,877 INFO L225 Difference]: With dead ends: 16 [2019-10-22 11:24:01,877 INFO L226 Difference]: Without dead ends: 16 [2019-10-22 11:24:01,878 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:24:01,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-22 11:24:01,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-22 11:24:01,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-22 11:24:01,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-10-22 11:24:01,881 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2019-10-22 11:24:01,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:01,881 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-10-22 11:24:01,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:01,882 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-10-22 11:24:01,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:24:01,882 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:01,882 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:01,883 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-10-22 11:24:01,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:01,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812681, now seen corresponding path program 1 times [2019-10-22 11:24:01,884 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:01,884 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783185257] [2019-10-22 11:24:01,884 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:01,885 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:01,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:01,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:01,915 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783185257] [2019-10-22 11:24:01,915 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:01,915 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:01,915 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901188356] [2019-10-22 11:24:01,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:01,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:01,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:01,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:01,917 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2019-10-22 11:24:02,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:02,026 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-10-22 11:24:02,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:02,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-10-22 11:24:02,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:02,027 INFO L225 Difference]: With dead ends: 22 [2019-10-22 11:24:02,027 INFO L226 Difference]: Without dead ends: 21 [2019-10-22 11:24:02,028 INFO L600 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 [2019-10-22 11:24:02,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-22 11:24:02,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 13. [2019-10-22 11:24:02,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-22 11:24:02,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-10-22 11:24:02,030 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2019-10-22 11:24:02,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:02,031 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-10-22 11:24:02,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:02,031 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-10-22 11:24:02,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:24:02,031 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:02,036 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:02,036 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-10-22 11:24:02,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:02,037 INFO L82 PathProgramCache]: Analyzing trace with hash 119352011, now seen corresponding path program 1 times [2019-10-22 11:24:02,037 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:02,037 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564881682] [2019-10-22 11:24:02,037 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:02,037 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:02,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:02,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:02,132 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564881682] [2019-10-22 11:24:02,132 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:02,132 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:24:02,132 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263857617] [2019-10-22 11:24:02,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:02,133 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:02,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:02,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:02,134 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2019-10-22 11:24:02,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:02,240 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-10-22 11:24:02,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:02,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-10-22 11:24:02,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:02,241 INFO L225 Difference]: With dead ends: 22 [2019-10-22 11:24:02,242 INFO L226 Difference]: Without dead ends: 22 [2019-10-22 11:24:02,242 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:24:02,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-22 11:24:02,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2019-10-22 11:24:02,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-22 11:24:02,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-10-22 11:24:02,245 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2019-10-22 11:24:02,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:02,245 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-10-22 11:24:02,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:02,245 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-10-22 11:24:02,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:24:02,246 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:02,246 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:02,246 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-10-22 11:24:02,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:02,246 INFO L82 PathProgramCache]: Analyzing trace with hash 176610313, now seen corresponding path program 1 times [2019-10-22 11:24:02,246 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:02,247 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687112933] [2019-10-22 11:24:02,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:02,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:02,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:02,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:02,299 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687112933] [2019-10-22 11:24:02,299 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:02,299 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:24:02,299 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344817080] [2019-10-22 11:24:02,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:02,300 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:02,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:02,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:02,300 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2019-10-22 11:24:02,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:02,342 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2019-10-22 11:24:02,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:24:02,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-10-22 11:24:02,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:02,343 INFO L225 Difference]: With dead ends: 15 [2019-10-22 11:24:02,344 INFO L226 Difference]: Without dead ends: 12 [2019-10-22 11:24:02,344 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:24:02,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-22 11:24:02,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-22 11:24:02,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-22 11:24:02,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-10-22 11:24:02,346 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 8 [2019-10-22 11:24:02,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:02,346 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-10-22 11:24:02,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:02,346 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-10-22 11:24:02,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:24:02,346 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:02,346 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:02,347 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-10-22 11:24:02,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:02,347 INFO L82 PathProgramCache]: Analyzing trace with hash -595054905, now seen corresponding path program 1 times [2019-10-22 11:24:02,347 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:02,348 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520132809] [2019-10-22 11:24:02,348 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:02,348 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:02,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:02,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:02,382 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520132809] [2019-10-22 11:24:02,383 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:02,383 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:24:02,383 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699435613] [2019-10-22 11:24:02,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:02,383 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:02,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:02,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:02,384 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 5 states. [2019-10-22 11:24:02,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:02,419 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-10-22 11:24:02,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:24:02,419 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-10-22 11:24:02,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:02,420 INFO L225 Difference]: With dead ends: 11 [2019-10-22 11:24:02,420 INFO L226 Difference]: Without dead ends: 11 [2019-10-22 11:24:02,420 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:24:02,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-10-22 11:24:02,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-10-22 11:24:02,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-10-22 11:24:02,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2019-10-22 11:24:02,422 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 9 [2019-10-22 11:24:02,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:02,422 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2019-10-22 11:24:02,422 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:02,422 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2019-10-22 11:24:02,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:24:02,423 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:02,423 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:02,423 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-10-22 11:24:02,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:02,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1266832815, now seen corresponding path program 1 times [2019-10-22 11:24:02,424 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:02,424 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324467970] [2019-10-22 11:24:02,424 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:02,424 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:02,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:02,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:02,487 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324467970] [2019-10-22 11:24:02,487 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:02,487 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:24:02,487 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257792416] [2019-10-22 11:24:02,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:02,488 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:02,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:02,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:02,489 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 6 states. [2019-10-22 11:24:02,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:02,548 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-10-22 11:24:02,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:24:02,548 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-10-22 11:24:02,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:02,548 INFO L225 Difference]: With dead ends: 10 [2019-10-22 11:24:02,548 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:24:02,549 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:24:02,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:24:02,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:24:02,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:24:02,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:24:02,550 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-22 11:24:02,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:02,550 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:24:02,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:02,550 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:24:02,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:24:02,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:24:02 BoogieIcfgContainer [2019-10-22 11:24:02,555 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:24:02,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:24:02,556 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:24:02,556 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:24:02,557 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:01" (3/4) ... [2019-10-22 11:24:02,560 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:24:02,571 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-10-22 11:24:02,571 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:24:02,610 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6acce50e-7b8b-4aeb-a9cd-4b36494d4bde/bin/utaipan/witness.graphml [2019-10-22 11:24:02,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:24:02,612 INFO L168 Benchmark]: Toolchain (without parser) took 2363.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 937.8 MB in the beginning and 976.1 MB in the end (delta: -38.2 MB). Peak memory consumption was 96.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:02,613 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:02,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:02,614 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.01 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:02,614 INFO L168 Benchmark]: Boogie Preprocessor took 41.39 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. [2019-10-22 11:24:02,614 INFO L168 Benchmark]: RCFGBuilder took 364.29 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. [2019-10-22 11:24:02,615 INFO L168 Benchmark]: TraceAbstraction took 1206.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.4 MB in the end (delta: 91.3 MB). Peak memory consumption was 91.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:02,615 INFO L168 Benchmark]: Witness Printer took 54.42 ms. Allocated memory is still 1.2 GB. Free memory was 981.4 MB in the beginning and 976.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:02,618 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 638.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.01 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.39 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 364.29 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 1206.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.4 MB in the end (delta: 91.3 MB). Peak memory consumption was 91.3 MB. Max. memory is 11.5 GB. * Witness Printer took 54.42 ms. Allocated memory is still 1.2 GB. Free memory was 981.4 MB in the beginning and 976.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 763]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 763]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 763]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 765]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 107 SDslu, 81 SDs, 0 SdLazy, 126 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 20 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 1277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...