./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/array-memsafety/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2e94e6aa 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/openbsd_cmemchr-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 d4019c4159483ac83115551cd48ccd0ba128dc3d ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 17:13:10,064 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 17:13:10,067 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 17:13:10,085 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 17:13:10,085 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 17:13:10,087 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 17:13:10,089 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 17:13:10,091 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 17:13:10,094 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 17:13:10,096 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 17:13:10,099 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 17:13:10,099 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 17:13:10,100 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 17:13:10,101 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 17:13:10,102 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 17:13:10,103 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 17:13:10,104 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 17:13:10,106 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 17:13:10,108 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 17:13:10,110 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 17:13:10,111 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 17:13:10,112 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 17:13:10,115 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 17:13:10,115 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 17:13:10,115 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 17:13:10,116 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 17:13:10,118 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 17:13:10,118 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 17:13:10,119 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 17:13:10,121 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 17:13:10,121 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 17:13:10,121 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 17:13:10,122 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 17:13:10,122 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 17:13:10,123 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 17:13:10,124 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 17:13:10,124 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-01 17:13:10,155 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 17:13:10,156 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 17:13:10,158 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 17:13:10,159 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 17:13:10,159 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 17:13:10,159 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 17:13:10,159 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 17:13:10,160 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 17:13:10,160 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 17:13:10,160 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 17:13:10,160 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 17:13:10,160 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-01 17:13:10,160 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-01 17:13:10,161 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-01 17:13:10,161 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 17:13:10,161 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 17:13:10,161 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 17:13:10,164 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 17:13:10,164 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 17:13:10,165 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 17:13:10,165 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 17:13:10,165 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 17:13:10,165 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 17:13:10,165 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 17:13:10,166 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 17:13:10,166 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 17:13:10,166 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 -> d4019c4159483ac83115551cd48ccd0ba128dc3d [2019-01-01 17:13:10,237 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 17:13:10,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 17:13:10,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 17:13:10,256 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 17:13:10,257 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 17:13:10,257 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i [2019-01-01 17:13:10,322 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e16c0b19/2e107e6b8c4048329af8f825ef749137/FLAG6f1d1317a [2019-01-01 17:13:10,782 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 17:13:10,782 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i [2019-01-01 17:13:10,796 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e16c0b19/2e107e6b8c4048329af8f825ef749137/FLAG6f1d1317a [2019-01-01 17:13:11,093 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e16c0b19/2e107e6b8c4048329af8f825ef749137 [2019-01-01 17:13:11,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 17:13:11,098 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-01 17:13:11,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 17:13:11,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 17:13:11,103 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 17:13:11,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 05:13:11" (1/1) ... [2019-01-01 17:13:11,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23ae614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:13:11, skipping insertion in model container [2019-01-01 17:13:11,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 05:13:11" (1/1) ... [2019-01-01 17:13:11,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 17:13:11,176 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 17:13:11,594 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 17:13:11,611 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 17:13:11,673 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 17:13:11,724 INFO L195 MainTranslator]: Completed translation [2019-01-01 17:13:11,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:13:11 WrapperNode [2019-01-01 17:13:11,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 17:13:11,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 17:13:11,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 17:13:11,726 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 17:13:11,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:13:11" (1/1) ... [2019-01-01 17:13:11,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:13:11" (1/1) ... [2019-01-01 17:13:11,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:13:11" (1/1) ... [2019-01-01 17:13:11,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:13:11" (1/1) ... [2019-01-01 17:13:11,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:13:11" (1/1) ... [2019-01-01 17:13:11,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:13:11" (1/1) ... [2019-01-01 17:13:11,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:13:11" (1/1) ... [2019-01-01 17:13:11,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 17:13:11,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 17:13:11,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 17:13:11,863 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 17:13:11,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:13:11" (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 [2019-01-01 17:13:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-01 17:13:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 17:13:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-01-01 17:13:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-01-01 17:13:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure cmemchr [2019-01-01 17:13:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-01 17:13:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-01-01 17:13:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-01-01 17:13:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-01-01 17:13:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-01-01 17:13:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-01-01 17:13:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-01-01 17:13:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-01-01 17:13:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-01-01 17:13:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-01-01 17:13:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-01-01 17:13:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-01-01 17:13:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-01-01 17:13:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-01-01 17:13:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-01-01 17:13:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-01-01 17:13:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-01-01 17:13:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-01-01 17:13:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-01-01 17:13:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-01-01 17:13:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-01-01 17:13:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-01-01 17:13:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-01-01 17:13:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-01-01 17:13:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-01-01 17:13:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-01-01 17:13:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-01-01 17:13:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-01-01 17:13:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-01-01 17:13:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-01-01 17:13:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-01-01 17:13:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-01-01 17:13:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-01-01 17:13:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-01-01 17:13:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-01-01 17:13:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-01-01 17:13:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-01-01 17:13:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-01-01 17:13:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-01-01 17:13:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-01-01 17:13:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-01-01 17:13:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-01-01 17:13:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-01-01 17:13:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-01-01 17:13:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-01-01 17:13:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-01-01 17:13:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-01-01 17:13:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-01-01 17:13:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-01-01 17:13:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-01-01 17:13:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-01-01 17:13:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-01-01 17:13:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-01-01 17:13:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-01-01 17:13:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-01-01 17:13:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-01-01 17:13:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-01-01 17:13:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-01-01 17:13:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-01-01 17:13:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-01-01 17:13:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-01-01 17:13:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-01-01 17:13:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-01-01 17:13:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-01-01 17:13:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-01-01 17:13:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-01-01 17:13:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-01-01 17:13:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-01-01 17:13:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-01-01 17:13:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-01-01 17:13:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-01-01 17:13:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-01-01 17:13:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-01-01 17:13:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-01-01 17:13:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-01-01 17:13:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-01-01 17:13:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-01-01 17:13:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-01-01 17:13:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-01-01 17:13:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-01-01 17:13:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-01-01 17:13:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-01-01 17:13:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-01-01 17:13:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-01-01 17:13:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-01-01 17:13:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-01-01 17:13:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-01-01 17:13:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-01-01 17:13:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-01-01 17:13:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-01-01 17:13:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-01-01 17:13:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-01-01 17:13:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-01-01 17:13:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-01-01 17:13:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-01-01 17:13:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-01-01 17:13:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-01-01 17:13:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-01-01 17:13:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-01-01 17:13:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-01-01 17:13:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-01-01 17:13:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-01-01 17:13:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-01-01 17:13:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-01-01 17:13:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure cmemchr [2019-01-01 17:13:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-01 17:13:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-01 17:13:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 17:13:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 17:13:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-01 17:13:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 17:13:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 17:13:12,577 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 17:13:12,579 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-01 17:13:12,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 05:13:12 BoogieIcfgContainer [2019-01-01 17:13:12,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 17:13:12,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 17:13:12,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 17:13:12,585 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 17:13:12,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 05:13:11" (1/3) ... [2019-01-01 17:13:12,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad457bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 05:13:12, skipping insertion in model container [2019-01-01 17:13:12,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:13:11" (2/3) ... [2019-01-01 17:13:12,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad457bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 05:13:12, skipping insertion in model container [2019-01-01 17:13:12,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 05:13:12" (3/3) ... [2019-01-01 17:13:12,590 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i [2019-01-01 17:13:12,601 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 17:13:12,611 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-01 17:13:12,630 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-01 17:13:12,658 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 17:13:12,658 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 17:13:12,659 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-01 17:13:12,659 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 17:13:12,661 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 17:13:12,661 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 17:13:12,661 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 17:13:12,662 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 17:13:12,662 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 17:13:12,679 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-01-01 17:13:12,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-01-01 17:13:12,693 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:13:12,694 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:13:12,696 INFO L423 AbstractCegarLoop]: === Iteration 1 === [cmemchrErr0REQUIRES_VIOLATION, cmemchrErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-01 17:13:12,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:13:12,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1006573627, now seen corresponding path program 1 times [2019-01-01 17:13:12,705 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:13:12,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:13:12,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:13:12,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:13:12,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:13:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:13:13,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:13:13,005 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 17:13:13,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 17:13:13,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 17:13:13,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 17:13:13,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-01 17:13:13,031 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 7 states. [2019-01-01 17:13:13,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:13:13,434 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2019-01-01 17:13:13,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 17:13:13,436 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2019-01-01 17:13:13,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:13:13,448 INFO L225 Difference]: With dead ends: 30 [2019-01-01 17:13:13,448 INFO L226 Difference]: Without dead ends: 27 [2019-01-01 17:13:13,451 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-01-01 17:13:13,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-01-01 17:13:13,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2019-01-01 17:13:13,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-01-01 17:13:13,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-01-01 17:13:13,487 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 14 [2019-01-01 17:13:13,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:13:13,487 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-01-01 17:13:13,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 17:13:13,488 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-01-01 17:13:13,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-01-01 17:13:13,489 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:13:13,489 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:13:13,489 INFO L423 AbstractCegarLoop]: === Iteration 2 === [cmemchrErr0REQUIRES_VIOLATION, cmemchrErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-01 17:13:13,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:13:13,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1006573628, now seen corresponding path program 1 times [2019-01-01 17:13:13,490 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:13:13,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:13:13,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:13:13,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:13:13,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:13:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:13:13,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:13:13,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 17:13:13,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 17:13:13,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 17:13:13,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 17:13:13,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-01-01 17:13:13,685 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 8 states. [2019-01-01 17:13:13,858 WARN L181 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-01-01 17:13:14,091 WARN L181 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2019-01-01 17:13:14,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:13:14,191 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2019-01-01 17:13:14,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-01 17:13:14,192 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-01-01 17:13:14,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:13:14,193 INFO L225 Difference]: With dead ends: 27 [2019-01-01 17:13:14,193 INFO L226 Difference]: Without dead ends: 27 [2019-01-01 17:13:14,194 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-01-01 17:13:14,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-01-01 17:13:14,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2019-01-01 17:13:14,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-01-01 17:13:14,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-01-01 17:13:14,200 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 14 [2019-01-01 17:13:14,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:13:14,200 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-01-01 17:13:14,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 17:13:14,200 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-01-01 17:13:14,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-01-01 17:13:14,201 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:13:14,201 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:13:14,201 INFO L423 AbstractCegarLoop]: === Iteration 3 === [cmemchrErr0REQUIRES_VIOLATION, cmemchrErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-01 17:13:14,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:13:14,202 INFO L82 PathProgramCache]: Analyzing trace with hash 51778827, now seen corresponding path program 1 times [2019-01-01 17:13:14,202 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:13:14,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:13:14,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:13:14,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:13:14,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:13:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:13:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:13:14,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 17:13:14,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 17:13:14,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 17:13:14,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 17:13:14,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-01 17:13:14,315 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 5 states. [2019-01-01 17:13:14,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:13:14,384 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2019-01-01 17:13:14,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 17:13:14,385 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-01-01 17:13:14,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:13:14,387 INFO L225 Difference]: With dead ends: 38 [2019-01-01 17:13:14,387 INFO L226 Difference]: Without dead ends: 38 [2019-01-01 17:13:14,387 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-01-01 17:13:14,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-01-01 17:13:14,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 31. [2019-01-01 17:13:14,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-01-01 17:13:14,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2019-01-01 17:13:14,399 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 17 [2019-01-01 17:13:14,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:13:14,399 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2019-01-01 17:13:14,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 17:13:14,400 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2019-01-01 17:13:14,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-01-01 17:13:14,402 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:13:14,402 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:13:14,402 INFO L423 AbstractCegarLoop]: === Iteration 4 === [cmemchrErr0REQUIRES_VIOLATION, cmemchrErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-01 17:13:14,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:13:14,403 INFO L82 PathProgramCache]: Analyzing trace with hash -341248183, now seen corresponding path program 1 times [2019-01-01 17:13:14,403 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:13:14,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:13:14,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:13:14,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:13:14,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:13:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:13:14,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:13:14,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 17:13:14,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 17:13:14,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 17:13:14,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 17:13:14,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 17:13:14,657 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 4 states. [2019-01-01 17:13:14,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:13:14,844 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2019-01-01 17:13:14,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 17:13:14,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-01-01 17:13:14,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:13:14,847 INFO L225 Difference]: With dead ends: 30 [2019-01-01 17:13:14,847 INFO L226 Difference]: Without dead ends: 22 [2019-01-01 17:13:14,848 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 17:13:14,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-01-01 17:13:14,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2019-01-01 17:13:14,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-01 17:13:14,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2019-01-01 17:13:14,852 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 17 [2019-01-01 17:13:14,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:13:14,852 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2019-01-01 17:13:14,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 17:13:14,853 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2019-01-01 17:13:14,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-01 17:13:14,853 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:13:14,854 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:13:14,854 INFO L423 AbstractCegarLoop]: === Iteration 5 === [cmemchrErr0REQUIRES_VIOLATION, cmemchrErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-01 17:13:14,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:13:14,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1015686468, now seen corresponding path program 1 times [2019-01-01 17:13:14,855 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:13:14,855 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:13:14,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:13:14,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:13:14,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:13:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:13:15,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:13:15,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 17:13:15,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 17:13:15,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 17:13:15,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 17:13:15,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-01-01 17:13:15,160 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 7 states. [2019-01-01 17:13:15,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:13:15,431 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-01-01 17:13:15,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 17:13:15,432 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-01-01 17:13:15,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:13:15,433 INFO L225 Difference]: With dead ends: 29 [2019-01-01 17:13:15,433 INFO L226 Difference]: Without dead ends: 20 [2019-01-01 17:13:15,433 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-01-01 17:13:15,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-01-01 17:13:15,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-01-01 17:13:15,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-01 17:13:15,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-01-01 17:13:15,437 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 19 [2019-01-01 17:13:15,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:13:15,437 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-01-01 17:13:15,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 17:13:15,437 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-01-01 17:13:15,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-01 17:13:15,438 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:13:15,438 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:13:15,438 INFO L423 AbstractCegarLoop]: === Iteration 6 === [cmemchrErr0REQUIRES_VIOLATION, cmemchrErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-01 17:13:15,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:13:15,439 INFO L82 PathProgramCache]: Analyzing trace with hash -757521030, now seen corresponding path program 1 times [2019-01-01 17:13:15,439 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:13:15,439 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:13:15,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:13:15,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:13:15,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:13:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:13:15,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:13:15,887 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 17:13:15,888 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 [2019-01-01 17:13:15,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:13:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:13:15,959 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 17:13:16,008 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-01-01 17:13:16,010 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-01 17:13:16,024 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 17:13:16,025 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-01-01 17:13:16,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:13:16,411 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-01 17:13:16,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2019-01-01 17:13:16,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-01-01 17:13:16,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-01-01 17:13:16,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2019-01-01 17:13:16,413 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 21 states. [2019-01-01 17:13:16,961 WARN L181 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2019-01-01 17:13:17,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:13:17,162 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-01-01 17:13:17,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-01-01 17:13:17,165 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 19 [2019-01-01 17:13:17,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:13:17,166 INFO L225 Difference]: With dead ends: 26 [2019-01-01 17:13:17,166 INFO L226 Difference]: Without dead ends: 26 [2019-01-01 17:13:17,167 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=111, Invalid=701, Unknown=0, NotChecked=0, Total=812 [2019-01-01 17:13:17,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-01-01 17:13:17,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2019-01-01 17:13:17,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-01-01 17:13:17,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-01-01 17:13:17,171 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 19 [2019-01-01 17:13:17,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:13:17,171 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-01-01 17:13:17,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-01-01 17:13:17,171 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-01-01 17:13:17,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-01-01 17:13:17,172 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:13:17,172 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:13:17,173 INFO L423 AbstractCegarLoop]: === Iteration 7 === [cmemchrErr0REQUIRES_VIOLATION, cmemchrErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-01 17:13:17,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:13:17,173 INFO L82 PathProgramCache]: Analyzing trace with hash -39295938, now seen corresponding path program 2 times [2019-01-01 17:13:17,173 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:13:17,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:13:17,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:13:17,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:13:17,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:13:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:13:17,507 WARN L181 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2019-01-01 17:13:17,907 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:13:17,907 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 17:13:17,907 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-01 17:13:17,917 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-01 17:13:17,948 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-01-01 17:13:17,949 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-01 17:13:17,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 17:13:17,973 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-01-01 17:13:17,974 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-01 17:13:17,992 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 17:13:17,993 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-01-01 17:13:18,613 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:13:18,635 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-01 17:13:18,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2019-01-01 17:13:18,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-01-01 17:13:18,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-01-01 17:13:18,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2019-01-01 17:13:18,637 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 22 states. [2019-01-01 17:13:19,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:13:19,920 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-01-01 17:13:19,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-01-01 17:13:19,921 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 24 [2019-01-01 17:13:19,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:13:19,922 INFO L225 Difference]: With dead ends: 30 [2019-01-01 17:13:19,922 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 17:13:19,924 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=159, Invalid=1173, Unknown=0, NotChecked=0, Total=1332 [2019-01-01 17:13:19,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 17:13:19,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 17:13:19,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 17:13:19,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 17:13:19,926 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-01-01 17:13:19,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:13:19,926 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 17:13:19,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-01-01 17:13:19,926 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 17:13:19,926 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 17:13:19,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 05:13:19 BoogieIcfgContainer [2019-01-01 17:13:19,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 17:13:19,933 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 17:13:19,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 17:13:19,933 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 17:13:19,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 05:13:12" (3/4) ... [2019-01-01 17:13:19,937 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 17:13:19,945 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cmemchr [2019-01-01 17:13:19,945 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-01-01 17:13:19,945 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-01-01 17:13:19,946 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-01-01 17:13:19,946 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-01-01 17:13:19,951 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2019-01-01 17:13:19,951 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-01-01 17:13:19,951 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-01 17:13:20,011 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 17:13:20,011 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 17:13:20,012 INFO L168 Benchmark]: Toolchain (without parser) took 8914.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 204.5 MB). Free memory was 952.7 MB in the beginning and 996.6 MB in the end (delta: -43.9 MB). Peak memory consumption was 160.6 MB. Max. memory is 11.5 GB. [2019-01-01 17:13:20,013 INFO L168 Benchmark]: CDTParser took 0.58 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. [2019-01-01 17:13:20,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.03 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 931.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-01-01 17:13:20,014 INFO L168 Benchmark]: Boogie Preprocessor took 136.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -194.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2019-01-01 17:13:20,015 INFO L168 Benchmark]: RCFGBuilder took 717.36 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. [2019-01-01 17:13:20,016 INFO L168 Benchmark]: TraceAbstraction took 7351.71 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.4 MB). Peak memory consumption was 150.0 MB. Max. memory is 11.5 GB. [2019-01-01 17:13:20,016 INFO L168 Benchmark]: Witness Printer took 78.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 996.6 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2019-01-01 17:13:20,024 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 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 626.03 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 931.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 136.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -194.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 717.36 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7351.71 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.4 MB). Peak memory consumption was 150.0 MB. Max. memory is 11.5 GB. * Witness Printer took 78.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 996.6 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 552]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 34 locations, 3 error locations. SAFE Result, 7.2s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 3.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 136 SDtfs, 160 SDslu, 662 SDs, 0 SdLazy, 559 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=3, 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, 14 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 158 ConstructedInterpolants, 2 QuantifiedInterpolants, 23231 SizeOfPredicates, 20 NumberOfNonLiveVariables, 230 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 2/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...