./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/array-memsafety/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/array-memsafety/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 65401fe061f89bb729dffabf74050dfab9fe7d77 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-13 21:56:09,130 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 21:56:09,132 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 21:56:09,147 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 21:56:09,148 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 21:56:09,149 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 21:56:09,150 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 21:56:09,152 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 21:56:09,154 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 21:56:09,154 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 21:56:09,155 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 21:56:09,155 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 21:56:09,156 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 21:56:09,157 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 21:56:09,158 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 21:56:09,159 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 21:56:09,160 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 21:56:09,165 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 21:56:09,167 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 21:56:09,168 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 21:56:09,170 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 21:56:09,174 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 21:56:09,179 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 21:56:09,179 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 21:56:09,180 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 21:56:09,182 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 21:56:09,185 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 21:56:09,186 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 21:56:09,189 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 21:56:09,191 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 21:56:09,191 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 21:56:09,191 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 21:56:09,191 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 21:56:09,192 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 21:56:09,192 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 21:56:09,195 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 21:56:09,195 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-13 21:56:09,225 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 21:56:09,225 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 21:56:09,229 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 21:56:09,230 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 21:56:09,230 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 21:56:09,230 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 21:56:09,230 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-13 21:56:09,230 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-13 21:56:09,231 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 21:56:09,231 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-13 21:56:09,231 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 21:56:09,231 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-13 21:56:09,231 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-13 21:56:09,231 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-13 21:56:09,234 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 21:56:09,234 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-13 21:56:09,234 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 21:56:09,234 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 21:56:09,234 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 21:56:09,235 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 21:56:09,236 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 21:56:09,236 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 21:56:09,236 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 21:56:09,237 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 21:56:09,237 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 21:56:09,237 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 21:56:09,237 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 65401fe061f89bb729dffabf74050dfab9fe7d77 [2019-01-13 21:56:09,300 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 21:56:09,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 21:56:09,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 21:56:09,326 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 21:56:09,327 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 21:56:09,327 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2019-01-13 21:56:09,378 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de7c58588/5a27fe51f26a48bfa5a1646c1b0a88a8/FLAG151113cae [2019-01-13 21:56:09,828 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 21:56:09,829 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2019-01-13 21:56:09,847 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de7c58588/5a27fe51f26a48bfa5a1646c1b0a88a8/FLAG151113cae [2019-01-13 21:56:10,193 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de7c58588/5a27fe51f26a48bfa5a1646c1b0a88a8 [2019-01-13 21:56:10,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 21:56:10,198 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-13 21:56:10,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 21:56:10,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 21:56:10,202 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 21:56:10,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 09:56:10" (1/1) ... [2019-01-13 21:56:10,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58b6b8b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:10, skipping insertion in model container [2019-01-13 21:56:10,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 09:56:10" (1/1) ... [2019-01-13 21:56:10,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 21:56:10,278 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 21:56:10,680 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 21:56:10,694 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 21:56:10,860 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 21:56:10,912 INFO L195 MainTranslator]: Completed translation [2019-01-13 21:56:10,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:10 WrapperNode [2019-01-13 21:56:10,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 21:56:10,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 21:56:10,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 21:56:10,914 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 21:56:10,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:10" (1/1) ... [2019-01-13 21:56:10,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:10" (1/1) ... [2019-01-13 21:56:10,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:10" (1/1) ... [2019-01-13 21:56:10,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:10" (1/1) ... [2019-01-13 21:56:10,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:10" (1/1) ... [2019-01-13 21:56:10,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:10" (1/1) ... [2019-01-13 21:56:10,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:10" (1/1) ... [2019-01-13 21:56:10,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 21:56:10,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 21:56:10,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 21:56:10,975 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 21:56:10,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-13 21:56:11,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-13 21:56:11,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 21:56:11,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-01-13 21:56:11,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-01-13 21:56:11,040 INFO L138 BoogieDeclarations]: Found implementation of procedure sort [2019-01-13 21:56:11,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-13 21:56:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-01-13 21:56:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-01-13 21:56:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-01-13 21:56:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-01-13 21:56:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-01-13 21:56:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-01-13 21:56:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-01-13 21:56:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-01-13 21:56:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-01-13 21:56:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-01-13 21:56:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-01-13 21:56:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-01-13 21:56:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-01-13 21:56:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-01-13 21:56:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-01-13 21:56:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-01-13 21:56:11,044 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-01-13 21:56:11,045 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-01-13 21:56:11,045 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-01-13 21:56:11,045 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-01-13 21:56:11,045 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-01-13 21:56:11,046 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-01-13 21:56:11,046 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-01-13 21:56:11,046 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-01-13 21:56:11,046 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-01-13 21:56:11,046 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-01-13 21:56:11,046 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-01-13 21:56:11,046 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-01-13 21:56:11,046 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-01-13 21:56:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-01-13 21:56:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-01-13 21:56:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-01-13 21:56:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-01-13 21:56:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-01-13 21:56:11,049 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-01-13 21:56:11,049 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-01-13 21:56:11,049 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-01-13 21:56:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-01-13 21:56:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-01-13 21:56:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-01-13 21:56:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-01-13 21:56:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-01-13 21:56:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-01-13 21:56:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-01-13 21:56:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-01-13 21:56:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-01-13 21:56:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-01-13 21:56:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-01-13 21:56:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-01-13 21:56:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-01-13 21:56:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-01-13 21:56:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-01-13 21:56:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-01-13 21:56:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-01-13 21:56:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-01-13 21:56:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-01-13 21:56:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-01-13 21:56:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-01-13 21:56:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-01-13 21:56:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-01-13 21:56:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-01-13 21:56:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-01-13 21:56:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-01-13 21:56:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-01-13 21:56:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-01-13 21:56:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-01-13 21:56:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-01-13 21:56:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-01-13 21:56:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-01-13 21:56:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-01-13 21:56:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-01-13 21:56:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-01-13 21:56:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-01-13 21:56:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-01-13 21:56:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-01-13 21:56:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-01-13 21:56:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-01-13 21:56:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-01-13 21:56:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-01-13 21:56:11,059 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-01-13 21:56:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-01-13 21:56:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-01-13 21:56:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-01-13 21:56:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-01-13 21:56:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-01-13 21:56:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-01-13 21:56:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-01-13 21:56:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-01-13 21:56:11,061 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-01-13 21:56:11,062 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-01-13 21:56:11,062 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-01-13 21:56:11,062 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-01-13 21:56:11,062 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-01-13 21:56:11,062 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-01-13 21:56:11,063 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-01-13 21:56:11,063 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-01-13 21:56:11,063 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-01-13 21:56:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-01-13 21:56:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-01-13 21:56:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-01-13 21:56:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-01-13 21:56:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-01-13 21:56:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-01-13 21:56:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure sort [2019-01-13 21:56:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-13 21:56:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-13 21:56:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-13 21:56:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 21:56:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 21:56:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-13 21:56:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 21:56:11,822 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 21:56:11,822 INFO L286 CfgBuilder]: Removed 2 assue(true) statements. [2019-01-13 21:56:11,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:56:11 BoogieIcfgContainer [2019-01-13 21:56:11,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 21:56:11,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 21:56:11,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 21:56:11,828 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 21:56:11,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 09:56:10" (1/3) ... [2019-01-13 21:56:11,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481420b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 09:56:11, skipping insertion in model container [2019-01-13 21:56:11,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:10" (2/3) ... [2019-01-13 21:56:11,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481420b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 09:56:11, skipping insertion in model container [2019-01-13 21:56:11,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:56:11" (3/3) ... [2019-01-13 21:56:11,831 INFO L112 eAbstractionObserver]: Analyzing ICFG java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2019-01-13 21:56:11,841 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 21:56:11,850 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2019-01-13 21:56:11,868 INFO L257 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2019-01-13 21:56:11,894 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 21:56:11,895 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 21:56:11,895 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-13 21:56:11,895 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 21:56:11,896 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 21:56:11,896 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 21:56:11,896 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 21:56:11,896 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 21:56:11,896 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 21:56:11,913 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2019-01-13 21:56:11,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-13 21:56:11,923 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:11,924 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:11,926 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr8REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION]=== [2019-01-13 21:56:11,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:11,933 INFO L82 PathProgramCache]: Analyzing trace with hash -682162729, now seen corresponding path program 1 times [2019-01-13 21:56:11,935 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:11,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:11,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:11,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:11,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:12,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:12,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:12,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 21:56:12,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 21:56:12,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 21:56:12,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-13 21:56:12,225 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 5 states. [2019-01-13 21:56:12,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:12,474 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2019-01-13 21:56:12,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 21:56:12,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-01-13 21:56:12,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:12,488 INFO L225 Difference]: With dead ends: 37 [2019-01-13 21:56:12,489 INFO L226 Difference]: Without dead ends: 34 [2019-01-13 21:56:12,491 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-01-13 21:56:12,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-01-13 21:56:12,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-01-13 21:56:12,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-01-13 21:56:12,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2019-01-13 21:56:12,528 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 13 [2019-01-13 21:56:12,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:12,529 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2019-01-13 21:56:12,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 21:56:12,529 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2019-01-13 21:56:12,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-13 21:56:12,530 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:12,530 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:12,531 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr8REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION]=== [2019-01-13 21:56:12,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:12,531 INFO L82 PathProgramCache]: Analyzing trace with hash -682162728, now seen corresponding path program 1 times [2019-01-13 21:56:12,531 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:12,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:12,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:12,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:12,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:12,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:12,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:12,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-13 21:56:12,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-13 21:56:12,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-13 21:56:12,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-01-13 21:56:12,711 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2019-01-13 21:56:12,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:12,838 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2019-01-13 21:56:12,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 21:56:12,839 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-01-13 21:56:12,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:12,840 INFO L225 Difference]: With dead ends: 43 [2019-01-13 21:56:12,840 INFO L226 Difference]: Without dead ends: 43 [2019-01-13 21:56:12,842 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-01-13 21:56:12,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-01-13 21:56:12,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2019-01-13 21:56:12,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-01-13 21:56:12,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2019-01-13 21:56:12,851 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 13 [2019-01-13 21:56:12,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:12,851 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2019-01-13 21:56:12,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-13 21:56:12,852 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2019-01-13 21:56:12,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-13 21:56:12,852 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:12,853 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:12,853 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr8REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION]=== [2019-01-13 21:56:12,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:12,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1092844634, now seen corresponding path program 1 times [2019-01-13 21:56:12,853 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:12,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:12,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:12,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:12,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:13,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:13,149 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:13,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-13 21:56:13,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-13 21:56:13,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-13 21:56:13,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-01-13 21:56:13,150 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 7 states. [2019-01-13 21:56:13,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:13,505 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2019-01-13 21:56:13,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 21:56:13,506 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-01-13 21:56:13,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:13,510 INFO L225 Difference]: With dead ends: 58 [2019-01-13 21:56:13,510 INFO L226 Difference]: Without dead ends: 58 [2019-01-13 21:56:13,510 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-01-13 21:56:13,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-01-13 21:56:13,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 48. [2019-01-13 21:56:13,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-01-13 21:56:13,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2019-01-13 21:56:13,518 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 13 [2019-01-13 21:56:13,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:13,518 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2019-01-13 21:56:13,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-13 21:56:13,518 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2019-01-13 21:56:13,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-01-13 21:56:13,519 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:13,519 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:13,520 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr8REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION]=== [2019-01-13 21:56:13,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:13,520 INFO L82 PathProgramCache]: Analyzing trace with hash -481554738, now seen corresponding path program 1 times [2019-01-13 21:56:13,520 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:13,520 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:13,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:13,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:13,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:13,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:13,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:13,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-13 21:56:13,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-13 21:56:13,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-13 21:56:13,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-01-13 21:56:13,967 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 7 states. [2019-01-13 21:56:14,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:14,275 INFO L93 Difference]: Finished difference Result 88 states and 103 transitions. [2019-01-13 21:56:14,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-13 21:56:14,276 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2019-01-13 21:56:14,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:14,277 INFO L225 Difference]: With dead ends: 88 [2019-01-13 21:56:14,277 INFO L226 Difference]: Without dead ends: 88 [2019-01-13 21:56:14,278 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-01-13 21:56:14,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-01-13 21:56:14,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 74. [2019-01-13 21:56:14,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-01-13 21:56:14,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 89 transitions. [2019-01-13 21:56:14,288 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 89 transitions. Word has length 14 [2019-01-13 21:56:14,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:14,288 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 89 transitions. [2019-01-13 21:56:14,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-13 21:56:14,288 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 89 transitions. [2019-01-13 21:56:14,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-01-13 21:56:14,289 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:14,289 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:14,290 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr8REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION]=== [2019-01-13 21:56:14,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:14,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1570848220, now seen corresponding path program 1 times [2019-01-13 21:56:14,290 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:14,290 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:14,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:14,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:14,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:14,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:14,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:14,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-13 21:56:14,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-13 21:56:14,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-13 21:56:14,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-13 21:56:14,361 INFO L87 Difference]: Start difference. First operand 74 states and 89 transitions. Second operand 4 states. [2019-01-13 21:56:14,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:14,487 INFO L93 Difference]: Finished difference Result 73 states and 88 transitions. [2019-01-13 21:56:14,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-13 21:56:14,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-01-13 21:56:14,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:14,490 INFO L225 Difference]: With dead ends: 73 [2019-01-13 21:56:14,490 INFO L226 Difference]: Without dead ends: 63 [2019-01-13 21:56:14,491 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-13 21:56:14,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-01-13 21:56:14,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2019-01-13 21:56:14,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-01-13 21:56:14,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2019-01-13 21:56:14,498 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 15 [2019-01-13 21:56:14,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:14,498 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2019-01-13 21:56:14,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-13 21:56:14,499 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2019-01-13 21:56:14,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-01-13 21:56:14,499 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:14,500 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:14,500 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr8REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION]=== [2019-01-13 21:56:14,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:14,500 INFO L82 PathProgramCache]: Analyzing trace with hash 770347889, now seen corresponding path program 1 times [2019-01-13 21:56:14,501 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:14,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:14,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:14,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:14,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:14,585 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:14,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:14,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 21:56:14,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 21:56:14,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 21:56:14,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-13 21:56:14,586 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand 5 states. [2019-01-13 21:56:14,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:14,728 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2019-01-13 21:56:14,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-13 21:56:14,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-01-13 21:56:14,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:14,730 INFO L225 Difference]: With dead ends: 73 [2019-01-13 21:56:14,730 INFO L226 Difference]: Without dead ends: 73 [2019-01-13 21:56:14,731 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-01-13 21:56:14,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-01-13 21:56:14,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 42. [2019-01-13 21:56:14,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-01-13 21:56:14,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2019-01-13 21:56:14,737 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 18 [2019-01-13 21:56:14,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:14,737 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2019-01-13 21:56:14,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 21:56:14,737 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2019-01-13 21:56:14,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-01-13 21:56:14,738 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:14,739 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:14,739 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr8REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION]=== [2019-01-13 21:56:14,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:14,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1154332924, now seen corresponding path program 1 times [2019-01-13 21:56:14,739 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:14,740 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:14,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:14,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:14,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:15,066 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:15,066 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-13 21:56:15,066 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-13 21:56:15,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:15,115 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:15,228 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:15,248 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-13 21:56:15,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2019-01-13 21:56:15,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-01-13 21:56:15,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-01-13 21:56:15,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2019-01-13 21:56:15,249 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 12 states. [2019-01-13 21:56:16,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:16,513 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2019-01-13 21:56:16,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-01-13 21:56:16,513 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2019-01-13 21:56:16,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:16,514 INFO L225 Difference]: With dead ends: 89 [2019-01-13 21:56:16,514 INFO L226 Difference]: Without dead ends: 0 [2019-01-13 21:56:16,515 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=268, Invalid=724, Unknown=0, NotChecked=0, Total=992 [2019-01-13 21:56:16,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-13 21:56:16,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-13 21:56:16,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-13 21:56:16,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-13 21:56:16,516 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-01-13 21:56:16,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:16,516 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-13 21:56:16,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-01-13 21:56:16,516 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-13 21:56:16,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-13 21:56:16,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 09:56:16 BoogieIcfgContainer [2019-01-13 21:56:16,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 21:56:16,523 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 21:56:16,523 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 21:56:16,523 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 21:56:16,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:56:11" (3/4) ... [2019-01-13 21:56:16,528 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-13 21:56:16,535 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-01-13 21:56:16,536 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-01-13 21:56:16,536 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-01-13 21:56:16,536 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-01-13 21:56:16,536 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sort [2019-01-13 21:56:16,541 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-01-13 21:56:16,541 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-01-13 21:56:16,541 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-13 21:56:16,590 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-13 21:56:16,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 21:56:16,592 INFO L168 Benchmark]: Toolchain (without parser) took 6394.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 951.3 MB in the beginning and 779.9 MB in the end (delta: 171.4 MB). Peak memory consumption was 263.7 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:16,593 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 21:56:16,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -113.6 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:16,595 INFO L168 Benchmark]: Boogie Preprocessor took 60.52 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 21:56:16,595 INFO L168 Benchmark]: RCFGBuilder took 849.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:16,596 INFO L168 Benchmark]: TraceAbstraction took 4697.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 787.1 MB in the end (delta: 229.5 MB). Peak memory consumption was 229.5 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:16,597 INFO L168 Benchmark]: Witness Printer took 67.90 ms. Allocated memory is still 1.1 GB. Free memory was 787.1 MB in the beginning and 779.9 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:16,601 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 714.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -113.6 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.52 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 849.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4697.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 787.1 MB in the end (delta: 229.5 MB). Peak memory consumption was 229.5 MB. Max. memory is 11.5 GB. * Witness Printer took 67.90 ms. Allocated memory is still 1.1 GB. Free memory was 787.1 MB in the beginning and 779.9 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 549]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 49 locations, 13 error locations. SAFE Result, 4.6s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 171 SDtfs, 536 SDslu, 336 SDs, 0 SdLazy, 446 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 58 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 8057 SizeOfPredicates, 3 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 12/14 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...