./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_be95966a-6dae-4287-ab59-07be81ec9d38/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_be95966a-6dae-4287-ab59-07be81ec9d38/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_be95966a-6dae-4287-ab59-07be81ec9d38/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_be95966a-6dae-4287-ab59-07be81ec9d38/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_be95966a-6dae-4287-ab59-07be81ec9d38/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_be95966a-6dae-4287-ab59-07be81ec9d38/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7cfd7481ea91a8e19e08969c84b730ff13700e8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:16:37,985 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:16:37,986 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:16:37,994 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:16:37,994 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:16:37,995 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:16:37,996 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:16:37,997 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:16:37,998 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:16:37,998 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:16:37,999 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:16:37,999 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:16:38,000 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:16:38,000 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:16:38,001 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:16:38,002 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:16:38,002 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:16:38,004 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:16:38,006 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:16:38,007 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:16:38,007 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:16:38,008 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:16:38,010 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:16:38,010 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:16:38,010 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:16:38,011 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:16:38,012 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:16:38,012 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:16:38,013 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:16:38,014 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:16:38,014 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:16:38,014 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:16:38,014 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:16:38,015 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:16:38,016 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:16:38,016 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:16:38,016 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_be95966a-6dae-4287-ab59-07be81ec9d38/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 13:16:38,024 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:16:38,024 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:16:38,025 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:16:38,025 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:16:38,025 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:16:38,026 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:16:38,026 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:16:38,026 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:16:38,026 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:16:38,026 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:16:38,026 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:16:38,026 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:16:38,027 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:16:38,027 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 13:16:38,027 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 13:16:38,027 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 13:16:38,027 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:16:38,027 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:16:38,028 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:16:38,028 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:16:38,028 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:16:38,028 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:16:38,028 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:16:38,028 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:16:38,029 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:16:38,029 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:16:38,029 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:16:38,029 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:16:38,029 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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_be95966a-6dae-4287-ab59-07be81ec9d38/bin-2019/uautomizer 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 -> Automizer 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 -> a7cfd7481ea91a8e19e08969c84b730ff13700e8 [2018-11-28 13:16:38,053 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:16:38,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:16:38,064 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:16:38,064 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:16:38,065 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:16:38,065 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_be95966a-6dae-4287-ab59-07be81ec9d38/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety/test-0158_true-valid-memsafety_true-termination.i [2018-11-28 13:16:38,103 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_be95966a-6dae-4287-ab59-07be81ec9d38/bin-2019/uautomizer/data/d17e469fa/1a1eee5dfbf84be9ad8e4ac43063c17b/FLAG1d4922b99 [2018-11-28 13:16:38,533 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:16:38,534 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_be95966a-6dae-4287-ab59-07be81ec9d38/sv-benchmarks/c/memsafety/test-0158_true-valid-memsafety_true-termination.i [2018-11-28 13:16:38,541 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_be95966a-6dae-4287-ab59-07be81ec9d38/bin-2019/uautomizer/data/d17e469fa/1a1eee5dfbf84be9ad8e4ac43063c17b/FLAG1d4922b99 [2018-11-28 13:16:38,550 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_be95966a-6dae-4287-ab59-07be81ec9d38/bin-2019/uautomizer/data/d17e469fa/1a1eee5dfbf84be9ad8e4ac43063c17b [2018-11-28 13:16:38,552 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:16:38,553 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 13:16:38,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:16:38,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:16:38,556 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:16:38,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:16:38" (1/1) ... [2018-11-28 13:16:38,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a84291b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:16:38, skipping insertion in model container [2018-11-28 13:16:38,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:16:38" (1/1) ... [2018-11-28 13:16:38,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:16:38,586 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:16:38,746 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:16:38,750 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:16:38,813 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:16:38,841 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:16:38,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:16:38 WrapperNode [2018-11-28 13:16:38,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:16:38,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:16:38,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:16:38,842 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:16:38,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:16:38" (1/1) ... [2018-11-28 13:16:38,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:16:38" (1/1) ... [2018-11-28 13:16:38,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:16:38" (1/1) ... [2018-11-28 13:16:38,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:16:38" (1/1) ... [2018-11-28 13:16:38,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:16:38" (1/1) ... [2018-11-28 13:16:38,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:16:38" (1/1) ... [2018-11-28 13:16:38,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:16:38" (1/1) ... [2018-11-28 13:16:38,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:16:38,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:16:38,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:16:38,881 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:16:38,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:16:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be95966a-6dae-4287-ab59-07be81ec9d38/bin-2019/uautomizer/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 [2018-11-28 13:16:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:16:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:16:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:16:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 13:16:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 13:16:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 13:16:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 13:16:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 13:16:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 13:16:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 13:16:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 13:16:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 13:16:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 13:16:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 13:16:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 13:16:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 13:16:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 13:16:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 13:16:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 13:16:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 13:16:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 13:16:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 13:16:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 13:16:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 13:16:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 13:16:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 13:16:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 13:16:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 13:16:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 13:16:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 13:16:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 13:16:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 13:16:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 13:16:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 13:16:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 13:16:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 13:16:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 13:16:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 13:16:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 13:16:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 13:16:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 13:16:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 13:16:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 13:16:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 13:16:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 13:16:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 13:16:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 13:16:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 13:16:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 13:16:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 13:16:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 13:16:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 13:16:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 13:16:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 13:16:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 13:16:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 13:16:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 13:16:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 13:16:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 13:16:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 13:16:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 13:16:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 13:16:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 13:16:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 13:16:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 13:16:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 13:16:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 13:16:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 13:16:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 13:16:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 13:16:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 13:16:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 13:16:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 13:16:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 13:16:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 13:16:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 13:16:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 13:16:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 13:16:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 13:16:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 13:16:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 13:16:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 13:16:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 13:16:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 13:16:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 13:16:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 13:16:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 13:16:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 13:16:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 13:16:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 13:16:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 13:16:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 13:16:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 13:16:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 13:16:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 13:16:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 13:16:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 13:16:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 13:16:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 13:16:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 13:16:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 13:16:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 13:16:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 13:16:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 13:16:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 13:16:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:16:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:16:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 13:16:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 13:16:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 13:16:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:16:38,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:16:39,196 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:16:39,196 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 13:16:39,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:16:39 BoogieIcfgContainer [2018-11-28 13:16:39,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:16:39,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:16:39,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:16:39,201 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:16:39,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:16:38" (1/3) ... [2018-11-28 13:16:39,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b8c523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:16:39, skipping insertion in model container [2018-11-28 13:16:39,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:16:38" (2/3) ... [2018-11-28 13:16:39,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b8c523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:16:39, skipping insertion in model container [2018-11-28 13:16:39,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:16:39" (3/3) ... [2018-11-28 13:16:39,203 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_true-valid-memsafety_true-termination.i [2018-11-28 13:16:39,212 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:16:39,219 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-11-28 13:16:39,233 INFO L257 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2018-11-28 13:16:39,255 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:16:39,256 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:16:39,256 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 13:16:39,256 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:16:39,256 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:16:39,256 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:16:39,256 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:16:39,256 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:16:39,256 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:16:39,268 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-28 13:16:39,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 13:16:39,276 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:16:39,277 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:16:39,279 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 13:16:39,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:16:39,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1092847752, now seen corresponding path program 1 times [2018-11-28 13:16:39,285 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:16:39,285 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:16:39,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:16:39,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:16:39,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:16:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:16:39,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:16:39,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:16:39,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:16:39,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:16:39,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:16:39,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:16:39,423 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-11-28 13:16:39,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:16:39,462 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2018-11-28 13:16:39,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:16:39,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 13:16:39,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:16:39,469 INFO L225 Difference]: With dead ends: 21 [2018-11-28 13:16:39,469 INFO L226 Difference]: Without dead ends: 18 [2018-11-28 13:16:39,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:16:39,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-28 13:16:39,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 13:16:39,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 13:16:39,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-11-28 13:16:39,491 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 7 [2018-11-28 13:16:39,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:16:39,492 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-11-28 13:16:39,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:16:39,492 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-11-28 13:16:39,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 13:16:39,492 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:16:39,492 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:16:39,492 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 13:16:39,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:16:39,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1092847751, now seen corresponding path program 1 times [2018-11-28 13:16:39,493 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:16:39,493 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:16:39,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:16:39,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:16:39,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:16:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:16:39,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:16:39,548 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:16:39,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:16:39,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:16:39,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:16:39,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:16:39,549 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 3 states. [2018-11-28 13:16:39,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:16:39,556 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2018-11-28 13:16:39,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:16:39,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 13:16:39,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:16:39,557 INFO L225 Difference]: With dead ends: 15 [2018-11-28 13:16:39,557 INFO L226 Difference]: Without dead ends: 15 [2018-11-28 13:16:39,558 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:16:39,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-28 13:16:39,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 13:16:39,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 13:16:39,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-11-28 13:16:39,560 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2018-11-28 13:16:39,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:16:39,560 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-11-28 13:16:39,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:16:39,560 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-11-28 13:16:39,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 13:16:39,560 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:16:39,561 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:16:39,561 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 13:16:39,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:16:39,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1175299886, now seen corresponding path program 1 times [2018-11-28 13:16:39,561 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:16:39,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:16:39,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:16:39,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:16:39,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:16:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:16:39,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:16:39,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:16:39,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:16:39,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:16:39,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:16:39,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:16:39,634 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 5 states. [2018-11-28 13:16:39,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:16:39,673 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2018-11-28 13:16:39,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:16:39,673 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-28 13:16:39,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:16:39,674 INFO L225 Difference]: With dead ends: 14 [2018-11-28 13:16:39,674 INFO L226 Difference]: Without dead ends: 14 [2018-11-28 13:16:39,674 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:16:39,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-28 13:16:39,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-28 13:16:39,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-28 13:16:39,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2018-11-28 13:16:39,675 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2018-11-28 13:16:39,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:16:39,676 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2018-11-28 13:16:39,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:16:39,676 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2018-11-28 13:16:39,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 13:16:39,676 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:16:39,676 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:16:39,676 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 13:16:39,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:16:39,677 INFO L82 PathProgramCache]: Analyzing trace with hash -2074558053, now seen corresponding path program 1 times [2018-11-28 13:16:39,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:16:39,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:16:39,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:16:39,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:16:39,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:16:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:16:39,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:16:39,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:16:39,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:16:39,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:16:39,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:16:39,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:16:39,713 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 5 states. [2018-11-28 13:16:39,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:16:39,740 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2018-11-28 13:16:39,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:16:39,741 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-28 13:16:39,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:16:39,741 INFO L225 Difference]: With dead ends: 13 [2018-11-28 13:16:39,741 INFO L226 Difference]: Without dead ends: 13 [2018-11-28 13:16:39,742 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:16:39,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-28 13:16:39,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-28 13:16:39,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-28 13:16:39,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2018-11-28 13:16:39,743 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2018-11-28 13:16:39,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:16:39,743 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2018-11-28 13:16:39,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:16:39,744 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2018-11-28 13:16:39,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 13:16:39,744 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:16:39,744 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:16:39,744 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 13:16:39,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:16:39,745 INFO L82 PathProgramCache]: Analyzing trace with hash 113209845, now seen corresponding path program 1 times [2018-11-28 13:16:39,745 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:16:39,745 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:16:39,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:16:39,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:16:39,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:16:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:16:39,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:16:39,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:16:39,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 13:16:39,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 13:16:39,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:16:39,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:16:39,874 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand 6 states. [2018-11-28 13:16:39,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:16:39,946 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-11-28 13:16:39,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:16:39,947 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-11-28 13:16:39,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:16:39,948 INFO L225 Difference]: With dead ends: 12 [2018-11-28 13:16:39,948 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 13:16:39,948 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:16:39,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 13:16:39,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 13:16:39,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 13:16:39,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 13:16:39,949 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-11-28 13:16:39,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:16:39,949 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:16:39,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 13:16:39,949 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:16:39,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 13:16:39,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:16:39 BoogieIcfgContainer [2018-11-28 13:16:39,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:16:39,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:16:39,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:16:39,954 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:16:39,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:16:39" (3/4) ... [2018-11-28 13:16:39,958 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 13:16:39,964 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 13:16:39,964 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 13:16:39,968 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 13:16:39,968 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-28 13:16:39,969 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 13:16:40,001 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_be95966a-6dae-4287-ab59-07be81ec9d38/bin-2019/uautomizer/witness.graphml [2018-11-28 13:16:40,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:16:40,002 INFO L168 Benchmark]: Toolchain (without parser) took 1449.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 950.6 MB in the beginning and 999.6 MB in the end (delta: -48.9 MB). Peak memory consumption was 95.8 MB. Max. memory is 11.5 GB. [2018-11-28 13:16:40,003 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:16:40,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-28 13:16:40,004 INFO L168 Benchmark]: Boogie Preprocessor took 38.44 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:16:40,004 INFO L168 Benchmark]: RCFGBuilder took 316.39 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: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:16:40,005 INFO L168 Benchmark]: TraceAbstraction took 756.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.3 MB). Peak memory consumption was 81.3 MB. Max. memory is 11.5 GB. [2018-11-28 13:16:40,005 INFO L168 Benchmark]: Witness Printer took 47.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 999.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:16:40,008 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 288.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.44 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 316.39 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: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 756.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.3 MB). Peak memory consumption was 81.3 MB. Max. memory is 11.5 GB. * Witness Printer took 47.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 999.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 630]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 630]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 631]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 629]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 619]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 629]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 631]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 631]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 631]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 9 error locations. SAFE Result, 0.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 35 SDslu, 51 SDs, 0 SdLazy, 71 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 2215 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...