./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/array-memsafety/openbsd_cmemset-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/openbsd_cmemset-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 8df11a05aa3b89e8b7aa4c528df2e0718843a0ef ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:56:21,042 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 21:56:21,044 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 21:56:21,056 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 21:56:21,057 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 21:56:21,058 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 21:56:21,059 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 21:56:21,062 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 21:56:21,064 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 21:56:21,065 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 21:56:21,066 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 21:56:21,066 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 21:56:21,067 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 21:56:21,069 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 21:56:21,070 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 21:56:21,071 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 21:56:21,072 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 21:56:21,074 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 21:56:21,077 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 21:56:21,079 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 21:56:21,080 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 21:56:21,082 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 21:56:21,088 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 21:56:21,089 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 21:56:21,089 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 21:56:21,090 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 21:56:21,092 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 21:56:21,093 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 21:56:21,094 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 21:56:21,095 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 21:56:21,095 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 21:56:21,099 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 21:56:21,099 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 21:56:21,100 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 21:56:21,100 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 21:56:21,103 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 21:56:21,104 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-13 21:56:21,122 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 21:56:21,122 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 21:56:21,125 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 21:56:21,126 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 21:56:21,126 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 21:56:21,126 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 21:56:21,126 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-13 21:56:21,126 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-13 21:56:21,127 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 21:56:21,127 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-13 21:56:21,127 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 21:56:21,127 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-13 21:56:21,127 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-13 21:56:21,127 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-13 21:56:21,128 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 21:56:21,128 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-13 21:56:21,128 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 21:56:21,128 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 21:56:21,128 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 21:56:21,129 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 21:56:21,129 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 21:56:21,129 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 21:56:21,129 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 21:56:21,129 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 21:56:21,129 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 21:56:21,130 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 21:56:21,130 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 -> 8df11a05aa3b89e8b7aa4c528df2e0718843a0ef [2019-01-13 21:56:21,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 21:56:21,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 21:56:21,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 21:56:21,188 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 21:56:21,189 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 21:56:21,190 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2019-01-13 21:56:21,252 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab6cb0892/d60887e3b5d242ab9dfcd14f5aca676a/FLAG524aa48d6 [2019-01-13 21:56:21,748 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 21:56:21,749 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2019-01-13 21:56:21,766 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab6cb0892/d60887e3b5d242ab9dfcd14f5aca676a/FLAG524aa48d6 [2019-01-13 21:56:22,028 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab6cb0892/d60887e3b5d242ab9dfcd14f5aca676a [2019-01-13 21:56:22,032 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 21:56:22,034 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-13 21:56:22,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 21:56:22,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 21:56:22,039 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 21:56:22,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 09:56:22" (1/1) ... [2019-01-13 21:56:22,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d26ae68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:22, skipping insertion in model container [2019-01-13 21:56:22,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 09:56:22" (1/1) ... [2019-01-13 21:56:22,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 21:56:22,116 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 21:56:22,474 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 21:56:22,487 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 21:56:22,559 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 21:56:22,611 INFO L195 MainTranslator]: Completed translation [2019-01-13 21:56:22,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:22 WrapperNode [2019-01-13 21:56:22,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 21:56:22,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 21:56:22,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 21:56:22,613 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 21:56:22,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:22" (1/1) ... [2019-01-13 21:56:22,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:22" (1/1) ... [2019-01-13 21:56:22,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:22" (1/1) ... [2019-01-13 21:56:22,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:22" (1/1) ... [2019-01-13 21:56:22,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:22" (1/1) ... [2019-01-13 21:56:22,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:22" (1/1) ... [2019-01-13 21:56:22,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:22" (1/1) ... [2019-01-13 21:56:22,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 21:56:22,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 21:56:22,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 21:56:22,736 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 21:56:22,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:22" (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 21:56:22,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-13 21:56:22,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 21:56:22,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-01-13 21:56:22,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-01-13 21:56:22,798 INFO L138 BoogieDeclarations]: Found implementation of procedure cmemset [2019-01-13 21:56:22,798 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-13 21:56:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-01-13 21:56:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-01-13 21:56:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-01-13 21:56:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-01-13 21:56:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-01-13 21:56:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-01-13 21:56:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-01-13 21:56:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-01-13 21:56:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-01-13 21:56:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-01-13 21:56:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-01-13 21:56:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-01-13 21:56:22,801 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-01-13 21:56:22,801 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-01-13 21:56:22,801 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-01-13 21:56:22,801 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-01-13 21:56:22,801 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-01-13 21:56:22,801 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-01-13 21:56:22,801 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-01-13 21:56:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-01-13 21:56:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-01-13 21:56:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-01-13 21:56:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-01-13 21:56:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-01-13 21:56:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-01-13 21:56:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-01-13 21:56:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-01-13 21:56:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-01-13 21:56:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-01-13 21:56:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-01-13 21:56:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-01-13 21:56:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-01-13 21:56:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-01-13 21:56:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-01-13 21:56:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-01-13 21:56:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-01-13 21:56:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-01-13 21:56:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-01-13 21:56:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-01-13 21:56:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-01-13 21:56:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-01-13 21:56:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-01-13 21:56:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-01-13 21:56:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-01-13 21:56:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-01-13 21:56:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-01-13 21:56:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-01-13 21:56:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-01-13 21:56:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-01-13 21:56:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-01-13 21:56:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-01-13 21:56:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-01-13 21:56:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-01-13 21:56:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-01-13 21:56:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-01-13 21:56:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-01-13 21:56:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-01-13 21:56:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-01-13 21:56:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-01-13 21:56:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-01-13 21:56:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-01-13 21:56:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-01-13 21:56:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-01-13 21:56:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-01-13 21:56:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-01-13 21:56:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-01-13 21:56:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-01-13 21:56:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-01-13 21:56:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-01-13 21:56:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-01-13 21:56:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-01-13 21:56:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-01-13 21:56:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-01-13 21:56:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-01-13 21:56:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-01-13 21:56:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-01-13 21:56:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-01-13 21:56:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-01-13 21:56:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-01-13 21:56:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-01-13 21:56:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-01-13 21:56:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-01-13 21:56:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-01-13 21:56:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-01-13 21:56:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-01-13 21:56:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-01-13 21:56:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-01-13 21:56:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-01-13 21:56:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-01-13 21:56:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-01-13 21:56:22,816 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-01-13 21:56:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-01-13 21:56:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-01-13 21:56:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-01-13 21:56:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-01-13 21:56:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-01-13 21:56:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-01-13 21:56:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-01-13 21:56:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-01-13 21:56:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-01-13 21:56:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-01-13 21:56:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-01-13 21:56:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-01-13 21:56:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure cmemset [2019-01-13 21:56:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-13 21:56:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-13 21:56:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 21:56:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 21:56:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-13 21:56:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 21:56:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-13 21:56:23,435 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 21:56:23,435 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-13 21:56:23,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:56:23 BoogieIcfgContainer [2019-01-13 21:56:23,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 21:56:23,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 21:56:23,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 21:56:23,443 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 21:56:23,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 09:56:22" (1/3) ... [2019-01-13 21:56:23,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efb8acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 09:56:23, skipping insertion in model container [2019-01-13 21:56:23,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:56:22" (2/3) ... [2019-01-13 21:56:23,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efb8acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 09:56:23, skipping insertion in model container [2019-01-13 21:56:23,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:56:23" (3/3) ... [2019-01-13 21:56:23,448 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2019-01-13 21:56:23,459 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 21:56:23,470 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-13 21:56:23,486 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-13 21:56:23,510 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 21:56:23,511 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 21:56:23,511 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-13 21:56:23,511 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 21:56:23,512 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 21:56:23,512 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 21:56:23,512 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 21:56:23,512 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 21:56:23,512 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 21:56:23,528 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-01-13 21:56:23,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-01-13 21:56:23,542 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:23,543 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:23,546 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:23,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:23,556 INFO L82 PathProgramCache]: Analyzing trace with hash 2144462555, now seen corresponding path program 1 times [2019-01-13 21:56:23,558 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:23,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:23,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:23,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:23,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:23,841 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 21:56:23,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:23,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-13 21:56:23,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-13 21:56:23,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-13 21:56:23,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-13 21:56:23,867 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 7 states. [2019-01-13 21:56:24,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:24,288 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2019-01-13 21:56:24,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 21:56:24,293 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2019-01-13 21:56:24,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:24,307 INFO L225 Difference]: With dead ends: 30 [2019-01-13 21:56:24,308 INFO L226 Difference]: Without dead ends: 27 [2019-01-13 21:56:24,310 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 [2019-01-13 21:56:24,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-01-13 21:56:24,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2019-01-13 21:56:24,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-01-13 21:56:24,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2019-01-13 21:56:24,349 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 14 [2019-01-13 21:56:24,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:24,350 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2019-01-13 21:56:24,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-13 21:56:24,350 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2019-01-13 21:56:24,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-01-13 21:56:24,351 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:24,351 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:24,351 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:24,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:24,352 INFO L82 PathProgramCache]: Analyzing trace with hash 2144462556, now seen corresponding path program 1 times [2019-01-13 21:56:24,352 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:24,352 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:24,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:24,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:24,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:24,719 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 21:56:24,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:24,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-13 21:56:24,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-13 21:56:24,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-13 21:56:24,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-01-13 21:56:24,722 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 8 states. [2019-01-13 21:56:24,878 WARN L181 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-01-13 21:56:25,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:25,170 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2019-01-13 21:56:25,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-13 21:56:25,170 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-01-13 21:56:25,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:25,172 INFO L225 Difference]: With dead ends: 27 [2019-01-13 21:56:25,172 INFO L226 Difference]: Without dead ends: 27 [2019-01-13 21:56:25,173 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-01-13 21:56:25,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-01-13 21:56:25,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2019-01-13 21:56:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-01-13 21:56:25,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2019-01-13 21:56:25,178 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 14 [2019-01-13 21:56:25,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:25,179 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2019-01-13 21:56:25,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-13 21:56:25,179 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2019-01-13 21:56:25,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-01-13 21:56:25,180 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:25,180 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:25,181 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:25,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:25,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1364784821, now seen corresponding path program 1 times [2019-01-13 21:56:25,181 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:25,181 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:25,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:25,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:25,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:25,279 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 21:56:25,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:25,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-13 21:56:25,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 21:56:25,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 21:56:25,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-13 21:56:25,281 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 5 states. [2019-01-13 21:56:25,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:25,349 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2019-01-13 21:56:25,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 21:56:25,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-01-13 21:56:25,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:25,352 INFO L225 Difference]: With dead ends: 36 [2019-01-13 21:56:25,352 INFO L226 Difference]: Without dead ends: 36 [2019-01-13 21:56:25,353 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 [2019-01-13 21:56:25,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-01-13 21:56:25,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2019-01-13 21:56:25,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-01-13 21:56:25,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-01-13 21:56:25,364 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 17 [2019-01-13 21:56:25,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:25,365 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-01-13 21:56:25,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 21:56:25,365 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2019-01-13 21:56:25,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-01-13 21:56:25,366 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:25,366 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:25,366 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:25,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:25,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1757811831, now seen corresponding path program 1 times [2019-01-13 21:56:25,367 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:25,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:25,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:25,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:25,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:25,455 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 21:56:25,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:25,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-13 21:56:25,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-13 21:56:25,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-13 21:56:25,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-13 21:56:25,457 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 4 states. [2019-01-13 21:56:25,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:25,558 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2019-01-13 21:56:25,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-13 21:56:25,561 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-01-13 21:56:25,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:25,562 INFO L225 Difference]: With dead ends: 30 [2019-01-13 21:56:25,562 INFO L226 Difference]: Without dead ends: 22 [2019-01-13 21:56:25,563 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 21:56:25,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-01-13 21:56:25,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2019-01-13 21:56:25,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-13 21:56:25,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2019-01-13 21:56:25,567 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 17 [2019-01-13 21:56:25,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:25,568 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2019-01-13 21:56:25,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-13 21:56:25,568 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2019-01-13 21:56:25,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-13 21:56:25,569 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:25,569 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:25,569 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:25,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:25,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1439915845, now seen corresponding path program 1 times [2019-01-13 21:56:25,570 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:25,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:25,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:25,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:25,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:25,829 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 21:56:25,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:56:25,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-13 21:56:25,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-13 21:56:25,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-13 21:56:25,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-01-13 21:56:25,831 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 7 states. [2019-01-13 21:56:26,025 WARN L181 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-01-13 21:56:26,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:26,063 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-01-13 21:56:26,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-13 21:56:26,064 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-01-13 21:56:26,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:26,065 INFO L225 Difference]: With dead ends: 29 [2019-01-13 21:56:26,065 INFO L226 Difference]: Without dead ends: 20 [2019-01-13 21:56:26,066 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 [2019-01-13 21:56:26,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-01-13 21:56:26,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-01-13 21:56:26,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-13 21:56:26,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-01-13 21:56:26,071 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 19 [2019-01-13 21:56:26,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:26,072 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-01-13 21:56:26,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-13 21:56:26,073 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-01-13 21:56:26,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-13 21:56:26,074 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:26,075 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:26,075 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:26,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:26,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1181750407, now seen corresponding path program 1 times [2019-01-13 21:56:26,076 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:26,078 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:26,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:26,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:26,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:26,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:26,476 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-13 21:56:26,476 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 21:56:26,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:26,546 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:26,594 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 [2019-01-13 21:56:26,595 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-13 21:56:26,604 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-13 21:56:26,605 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-01-13 21:56:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:27,011 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-13 21:56:27,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2019-01-13 21:56:27,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-01-13 21:56:27,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-01-13 21:56:27,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2019-01-13 21:56:27,013 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 21 states. [2019-01-13 21:56:27,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:27,846 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-01-13 21:56:27,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-01-13 21:56:27,848 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 19 [2019-01-13 21:56:27,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:27,849 INFO L225 Difference]: With dead ends: 26 [2019-01-13 21:56:27,850 INFO L226 Difference]: Without dead ends: 26 [2019-01-13 21:56:27,851 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 [2019-01-13 21:56:27,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-01-13 21:56:27,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2019-01-13 21:56:27,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-01-13 21:56:27,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-01-13 21:56:27,854 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 19 [2019-01-13 21:56:27,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:27,855 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-01-13 21:56:27,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-01-13 21:56:27,855 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-01-13 21:56:27,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-01-13 21:56:27,856 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:56:27,856 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:56:27,856 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-01-13 21:56:27,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:56:27,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1233521090, now seen corresponding path program 2 times [2019-01-13 21:56:27,857 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:56:27,857 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:56:27,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:27,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:56:27,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:56:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:56:28,380 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:28,380 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-13 21:56:28,380 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 [2019-01-13 21:56:28,390 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-13 21:56:28,428 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-01-13 21:56:28,428 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-13 21:56:28,432 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:56:28,451 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 [2019-01-13 21:56:28,451 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-13 21:56:28,524 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-13 21:56:28,525 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-01-13 21:56:28,996 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:56:29,015 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-13 21:56:29,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2019-01-13 21:56:29,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-01-13 21:56:29,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-01-13 21:56:29,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2019-01-13 21:56:29,017 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 22 states. [2019-01-13 21:56:30,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:56:30,366 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-01-13 21:56:30,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-01-13 21:56:30,367 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 24 [2019-01-13 21:56:30,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:56:30,368 INFO L225 Difference]: With dead ends: 30 [2019-01-13 21:56:30,368 INFO L226 Difference]: Without dead ends: 0 [2019-01-13 21:56:30,370 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=159, Invalid=1173, Unknown=0, NotChecked=0, Total=1332 [2019-01-13 21:56:30,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-13 21:56:30,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-13 21:56:30,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-13 21:56:30,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-13 21:56:30,370 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-01-13 21:56:30,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:56:30,371 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-13 21:56:30,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-01-13 21:56:30,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-13 21:56:30,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-13 21:56:30,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 09:56:30 BoogieIcfgContainer [2019-01-13 21:56:30,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 21:56:30,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 21:56:30,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 21:56:30,376 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 21:56:30,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:56:23" (3/4) ... [2019-01-13 21:56:30,380 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-13 21:56:30,385 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-01-13 21:56:30,386 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-01-13 21:56:30,386 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-01-13 21:56:30,386 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-01-13 21:56:30,386 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cmemset [2019-01-13 21:56:30,391 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-01-13 21:56:30,391 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-01-13 21:56:30,392 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-13 21:56:30,447 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-13 21:56:30,447 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 21:56:30,449 INFO L168 Benchmark]: Toolchain (without parser) took 8415.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 212.3 MB). Free memory was 952.7 MB in the beginning and 1.0 GB in the end (delta: -54.5 MB). Peak memory consumption was 157.8 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:30,450 INFO L168 Benchmark]: CDTParser took 0.45 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 21:56:30,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 577.36 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. [2019-01-13 21:56:30,451 INFO L168 Benchmark]: Boogie Preprocessor took 122.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -206.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:30,452 INFO L168 Benchmark]: RCFGBuilder took 702.60 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: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:30,453 INFO L168 Benchmark]: TraceAbstraction took 6937.03 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.2 MB). Peak memory consumption was 148.1 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:30,453 INFO L168 Benchmark]: Witness Printer took 71.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2019-01-13 21:56:30,459 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 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 577.36 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 122.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -206.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 702.60 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: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6937.03 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.2 MB). Peak memory consumption was 148.1 MB. Max. memory is 11.5 GB. * Witness Printer took 71.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 551]: 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: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds 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, 6.8s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 3.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 131 SDtfs, 153 SDslu, 652 SDs, 0 SdLazy, 561 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4.2s 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, 12 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 158 ConstructedInterpolants, 2 QuantifiedInterpolants, 22459 SizeOfPredicates, 20 NumberOfNonLiveVariables, 231 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...