./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/array-memsafety-realloc/array-realloc_false-valid-free.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 91b1670e 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-realloc/array-realloc_false-valid-free.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 ded1caa2f8c25b2d12db952d692e8b8fb2437d41 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 22:44:44,028 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:44:44,030 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:44:44,049 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:44:44,049 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:44:44,050 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:44:44,052 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:44:44,054 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:44:44,056 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:44:44,057 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:44:44,058 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:44:44,058 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:44:44,059 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:44:44,060 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:44:44,062 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:44:44,063 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:44:44,064 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:44:44,066 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:44:44,071 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:44:44,079 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:44:44,080 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:44:44,081 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:44:44,086 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:44:44,086 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:44:44,086 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:44:44,087 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:44:44,089 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:44:44,094 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:44:44,094 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:44:44,096 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:44:44,097 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:44:44,100 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:44:44,101 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:44:44,101 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:44:44,102 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:44:44,102 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:44:44,105 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 22:44:44,134 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:44:44,134 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:44:44,135 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:44:44,135 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:44:44,136 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:44:44,136 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:44:44,136 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:44:44,137 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:44:44,137 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:44:44,137 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:44:44,137 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:44:44,137 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:44:44,137 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:44:44,139 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:44:44,139 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:44:44,139 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:44:44,139 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:44:44,139 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:44:44,140 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:44:44,140 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:44:44,141 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:44:44,141 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:44:44,141 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:44:44,141 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:44:44,141 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:44:44,142 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:44:44,142 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 22:44:44,142 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:44:44,142 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 -> ded1caa2f8c25b2d12db952d692e8b8fb2437d41 [2018-11-28 22:44:44,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:44:44,210 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:44:44,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:44:44,218 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:44:44,219 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:44:44,221 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety-realloc/array-realloc_false-valid-free.i [2018-11-28 22:44:44,290 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf239a1c3/488b447032e54242baac68919df64516/FLAG97e0ce6c0 [2018-11-28 22:44:44,796 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:44:44,797 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety-realloc/array-realloc_false-valid-free.i [2018-11-28 22:44:44,811 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf239a1c3/488b447032e54242baac68919df64516/FLAG97e0ce6c0 [2018-11-28 22:44:45,085 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf239a1c3/488b447032e54242baac68919df64516 [2018-11-28 22:44:45,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:44:45,090 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:44:45,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:44:45,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:44:45,095 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:44:45,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:44:45" (1/1) ... [2018-11-28 22:44:45,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f06a197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:45, skipping insertion in model container [2018-11-28 22:44:45,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:44:45" (1/1) ... [2018-11-28 22:44:45,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:44:45,154 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:44:45,521 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:44:45,545 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:44:45,605 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:44:45,757 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:44:45,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:45 WrapperNode [2018-11-28 22:44:45,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:44:45,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:44:45,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:44:45,760 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:44:45,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:45" (1/1) ... [2018-11-28 22:44:45,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:45" (1/1) ... [2018-11-28 22:44:45,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:45" (1/1) ... [2018-11-28 22:44:45,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:45" (1/1) ... [2018-11-28 22:44:45,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:45" (1/1) ... [2018-11-28 22:44:45,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:45" (1/1) ... [2018-11-28 22:44:45,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:45" (1/1) ... [2018-11-28 22:44:45,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:44:45,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:44:45,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:44:45,823 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:44:45,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:45" (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 [2018-11-28 22:44:45,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:44:45,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:44:45,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-28 22:44:45,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-28 22:44:45,886 INFO L138 BoogieDeclarations]: Found implementation of procedure expandArray [2018-11-28 22:44:45,886 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:44:45,886 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2018-11-28 22:44:45,886 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-28 22:44:45,887 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-28 22:44:45,887 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:44:45,887 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:44:45,887 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:44:45,888 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:44:45,888 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:44:45,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:44:45,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:44:45,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:44:45,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:44:45,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:44:45,890 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:44:45,890 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:44:45,890 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:44:45,890 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:44:45,890 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:44:45,890 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:44:45,891 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:44:45,891 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:44:45,891 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:44:45,891 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:44:45,891 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:44:45,891 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:44:45,891 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:44:45,891 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:44:45,892 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:44:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:44:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:44:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:44:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:44:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:44:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:44:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:44:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:44:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:44:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:44:45,895 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:44:45,896 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:44:45,896 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:44:45,896 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:44:45,896 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:44:45,896 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:44:45,896 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:44:45,897 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:44:45,897 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:44:45,897 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:44:45,897 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:44:45,897 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:44:45,897 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:44:45,897 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:44:45,897 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:44:45,899 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:44:45,899 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:44:45,899 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:44:45,900 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:44:45,900 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:44:45,900 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:44:45,900 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:44:45,900 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:44:45,900 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-28 22:44:45,900 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:44:45,900 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:44:45,902 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-28 22:44:45,902 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:44:45,902 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:44:45,902 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-28 22:44:45,902 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:44:45,902 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:44:45,903 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:44:45,903 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:44:45,904 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:44:45,904 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:44:45,904 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:44:45,904 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:44:45,904 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:44:45,904 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:44:45,904 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:44:45,905 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:44:45,905 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:44:45,905 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:44:45,905 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:44:45,905 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:44:45,905 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:44:45,905 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:44:45,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:44:45,907 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:44:45,907 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:44:45,907 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:44:45,908 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:44:45,908 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:44:45,908 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:44:45,908 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:44:45,908 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:44:45,909 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:44:45,909 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:44:45,909 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:44:45,909 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:44:45,909 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:44:45,909 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:44:45,909 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:44:45,909 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:44:45,910 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:44:45,910 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:44:45,910 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:44:45,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 22:44:45,910 INFO L130 BoogieDeclarations]: Found specification of procedure expandArray [2018-11-28 22:44:45,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2018-11-28 22:44:45,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 22:44:45,910 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:44:45,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:44:45,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:44:45,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:44:45,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:44:45,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 22:44:46,468 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:44:46,468 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 22:44:46,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:46 BoogieIcfgContainer [2018-11-28 22:44:46,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:44:46,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:44:46,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:44:46,474 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:44:46,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:44:45" (1/3) ... [2018-11-28 22:44:46,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5302dd19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:44:46, skipping insertion in model container [2018-11-28 22:44:46,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:45" (2/3) ... [2018-11-28 22:44:46,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5302dd19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:44:46, skipping insertion in model container [2018-11-28 22:44:46,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:46" (3/3) ... [2018-11-28 22:44:46,477 INFO L112 eAbstractionObserver]: Analyzing ICFG array-realloc_false-valid-free.i [2018-11-28 22:44:46,487 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:44:46,495 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-28 22:44:46,513 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-28 22:44:46,537 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:44:46,538 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:44:46,538 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:44:46,538 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:44:46,538 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:44:46,538 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:44:46,538 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:44:46,539 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:44:46,539 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:44:46,552 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-28 22:44:46,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 22:44:46,562 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:46,563 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:46,567 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:46,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:46,576 INFO L82 PathProgramCache]: Analyzing trace with hash -793354211, now seen corresponding path program 1 times [2018-11-28 22:44:46,579 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:46,580 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:46,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:46,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:46,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:46,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:46,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:46,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:44:46,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:44:46,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:44:46,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:44:46,778 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-11-28 22:44:46,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:46,977 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-11-28 22:44:46,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:44:46,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-28 22:44:46,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:46,992 INFO L225 Difference]: With dead ends: 39 [2018-11-28 22:44:46,993 INFO L226 Difference]: Without dead ends: 35 [2018-11-28 22:44:46,995 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:44:47,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-28 22:44:47,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2018-11-28 22:44:47,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-28 22:44:47,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2018-11-28 22:44:47,065 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 8 [2018-11-28 22:44:47,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:47,065 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2018-11-28 22:44:47,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:44:47,065 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2018-11-28 22:44:47,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 22:44:47,066 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:47,066 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:47,067 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:47,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:47,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1175823942, now seen corresponding path program 1 times [2018-11-28 22:44:47,067 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:47,067 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:47,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:47,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:47,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:47,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:47,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:47,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 22:44:47,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:44:47,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:44:47,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:44:47,205 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 3 states. [2018-11-28 22:44:47,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:47,247 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2018-11-28 22:44:47,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:44:47,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 22:44:47,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:47,249 INFO L225 Difference]: With dead ends: 30 [2018-11-28 22:44:47,249 INFO L226 Difference]: Without dead ends: 30 [2018-11-28 22:44:47,250 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:44:47,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-28 22:44:47,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-28 22:44:47,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-28 22:44:47,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2018-11-28 22:44:47,255 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 9 [2018-11-28 22:44:47,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:47,256 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2018-11-28 22:44:47,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:44:47,256 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2018-11-28 22:44:47,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 22:44:47,257 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:47,257 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:47,257 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:47,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:47,258 INFO L82 PathProgramCache]: Analyzing trace with hash 909889198, now seen corresponding path program 1 times [2018-11-28 22:44:47,258 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:47,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:47,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:47,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:47,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:47,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:47,551 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:47,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 22:44:47,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 22:44:47,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 22:44:47,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:44:47,553 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 6 states. [2018-11-28 22:44:47,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:47,915 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2018-11-28 22:44:47,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 22:44:47,917 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-11-28 22:44:47,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:47,918 INFO L225 Difference]: With dead ends: 31 [2018-11-28 22:44:47,918 INFO L226 Difference]: Without dead ends: 31 [2018-11-28 22:44:47,919 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:44:47,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-28 22:44:47,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-28 22:44:47,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-28 22:44:47,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-11-28 22:44:47,924 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 16 [2018-11-28 22:44:47,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:47,925 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-11-28 22:44:47,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 22:44:47,925 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-11-28 22:44:47,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 22:44:47,926 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:47,926 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:47,926 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:47,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:47,927 INFO L82 PathProgramCache]: Analyzing trace with hash 134310890, now seen corresponding path program 1 times [2018-11-28 22:44:47,927 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:47,927 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:47,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:47,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:47,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:48,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:48,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:48,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 22:44:48,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 22:44:48,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 22:44:48,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:44:48,138 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 6 states. [2018-11-28 22:44:48,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:48,477 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2018-11-28 22:44:48,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 22:44:48,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-11-28 22:44:48,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:48,483 INFO L225 Difference]: With dead ends: 39 [2018-11-28 22:44:48,484 INFO L226 Difference]: Without dead ends: 39 [2018-11-28 22:44:48,484 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:44:48,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-28 22:44:48,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-11-28 22:44:48,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 22:44:48,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-11-28 22:44:48,498 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 17 [2018-11-28 22:44:48,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:48,502 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-11-28 22:44:48,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 22:44:48,502 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-28 22:44:48,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 22:44:48,504 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:48,505 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:48,505 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:48,505 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:48,505 INFO L82 PathProgramCache]: Analyzing trace with hash 135234411, now seen corresponding path program 1 times [2018-11-28 22:44:48,506 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:48,506 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:48,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:48,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:48,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:48,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:48,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:48,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:44:48,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:44:48,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:44:48,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:44:48,703 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 5 states. [2018-11-28 22:44:48,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:48,797 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2018-11-28 22:44:48,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:44:48,798 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-28 22:44:48,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:48,800 INFO L225 Difference]: With dead ends: 33 [2018-11-28 22:44:48,800 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 22:44:48,800 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:44:48,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 22:44:48,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-28 22:44:48,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 22:44:48,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-11-28 22:44:48,807 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 17 [2018-11-28 22:44:48,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:48,808 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-11-28 22:44:48,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:44:48,808 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-11-28 22:44:48,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 22:44:48,812 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:48,812 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:48,812 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:48,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:48,814 INFO L82 PathProgramCache]: Analyzing trace with hash 135234412, now seen corresponding path program 1 times [2018-11-28 22:44:48,814 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:48,814 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:48,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:48,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:48,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:48,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:44:48,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:48,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 22:44:48,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 22:44:48,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 22:44:48,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:44:48,996 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 7 states. [2018-11-28 22:44:49,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:49,200 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2018-11-28 22:44:49,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 22:44:49,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-11-28 22:44:49,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:49,204 INFO L225 Difference]: With dead ends: 32 [2018-11-28 22:44:49,204 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 22:44:49,205 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:44:49,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 22:44:49,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-28 22:44:49,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 22:44:49,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2018-11-28 22:44:49,210 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 17 [2018-11-28 22:44:49,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:49,211 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2018-11-28 22:44:49,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 22:44:49,211 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-11-28 22:44:49,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 22:44:49,212 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:49,212 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:49,212 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:49,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:49,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1979519149, now seen corresponding path program 1 times [2018-11-28 22:44:49,213 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:49,213 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:49,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:49,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:49,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:49,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 22:44:49,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:49,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:44:49,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:44:49,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:44:49,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:44:49,292 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 3 states. [2018-11-28 22:44:49,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:49,306 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2018-11-28 22:44:49,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:44:49,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-11-28 22:44:49,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:49,308 INFO L225 Difference]: With dead ends: 31 [2018-11-28 22:44:49,308 INFO L226 Difference]: Without dead ends: 31 [2018-11-28 22:44:49,308 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:44:49,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-28 22:44:49,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-28 22:44:49,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-28 22:44:49,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2018-11-28 22:44:49,315 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 24 [2018-11-28 22:44:49,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:49,315 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2018-11-28 22:44:49,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:44:49,315 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-11-28 22:44:49,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 22:44:49,316 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:49,317 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:49,317 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2018-11-28 22:44:49,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:49,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1235551422, now seen corresponding path program 1 times [2018-11-28 22:44:49,318 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:49,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:49,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:49,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:49,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:44:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:44:49,417 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 22:44:49,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:44:49 BoogieIcfgContainer [2018-11-28 22:44:49,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:44:49,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:44:49,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:44:49,498 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:44:49,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:46" (3/4) ... [2018-11-28 22:44:49,501 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 22:44:49,585 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 22:44:49,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:44:49,586 INFO L168 Benchmark]: Toolchain (without parser) took 4496.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 951.3 MB in the beginning and 953.3 MB in the end (delta: -1.9 MB). Peak memory consumption was 143.3 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:49,588 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-11-28 22:44:49,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:49,589 INFO L168 Benchmark]: Boogie Preprocessor took 62.80 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:49,589 INFO L168 Benchmark]: RCFGBuilder took 646.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:49,590 INFO L168 Benchmark]: TraceAbstraction took 3027.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 960.0 MB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:49,591 INFO L168 Benchmark]: Witness Printer took 86.84 ms. Allocated memory is still 1.2 GB. Free memory was 960.0 MB in the beginning and 953.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:49,594 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 668.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.80 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 646.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3027.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 960.0 MB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 11.5 GB. * Witness Printer took 86.84 ms. Allocated memory is still 1.2 GB. Free memory was 960.0 MB in the beginning and 953.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 580]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L556] int num; [L557] int ind, newsize, i = 1; VAL [\old(i)=10, \old(ind)=8, \old(newsize)=13, \old(num)=9, i=1, ind=0, newsize=0, num=0] [L570] num = __VERIFIER_nondet_int() [L571] COND FALSE !(!(num > 0 && num < 100)) [L574] int *a = (int *)malloc(sizeof(int)); VAL [\old(argc)=15, \old(newsize)=0, \old(num)=0, a={11:0}, argc=15, argv={12:6}, argv={12:6}, i=1, ind=0, malloc(sizeof(int))={11:0}, newsize=0, num=1] [L575] COND FALSE !(a == ((void *)0)) [L578] newsize = 0 VAL [\old(argc)=15, \old(newsize)=0, \old(num)=0, a={11:0}, argc=15, argv={12:6}, argv={12:6}, i=1, ind=0, malloc(sizeof(int))={11:0}, newsize=0, num=1] [L579] CALL expandArray(a) VAL [\old(newsize)=0, \old(num)=0, arg={11:0}, i=1, ind=0, newsize=0, num=1] [L559] int *a = (int *)arg; VAL [\old(newsize)=0, \old(num)=0, a={11:0}, arg={11:0}, arg={11:0}, i=1, ind=0, newsize=0, num=1] [L560] COND TRUE newsize < num [L561] newsize = newsize + 1 [L562] int *b = ((void *)0); VAL [\old(newsize)=0, \old(num)=0, a={11:0}, arg={11:0}, arg={11:0}, b={0:0}, i=1, ind=0, newsize=1, num=1] [L563] EXPR, FCALL realloc(a, sizeof(int) * newsize) VAL [\old(newsize)=0, \old(num)=0, a={11:0}, arg={11:0}, arg={11:0}, b={0:0}, i=1, ind=0, newsize=1, num=1, realloc(a, sizeof(int) * newsize)={7:0}] [L563] b = realloc(a, sizeof(int) * newsize) [L564] b[newsize - 1] = i VAL [\old(newsize)=0, \old(num)=0, a={11:0}, arg={11:0}, arg={11:0}, b={7:0}, i=1, ind=0, newsize=1, num=1] [L565] a = b VAL [\old(newsize)=0, \old(num)=0, a={7:0}, arg={11:0}, arg={11:0}, b={7:0}, i=1, ind=0, newsize=1, num=1] [L560] COND FALSE !(newsize < num) VAL [\old(newsize)=0, \old(num)=0, a={7:0}, arg={11:0}, arg={11:0}, b={7:0}, i=1, ind=0, newsize=1, num=1] [L567] return 0; VAL [\old(newsize)=0, \old(num)=0, \result={0:0}, a={7:0}, arg={11:0}, arg={11:0}, b={7:0}, i=1, ind=0, newsize=1, num=1] [L579] RET expandArray(a) VAL [\old(argc)=15, \old(newsize)=0, \old(num)=0, a={11:0}, argc=15, argv={12:6}, argv={12:6}, expandArray(a)={0:0}, i=1, ind=0, malloc(sizeof(int))={11:0}, newsize=1, num=1] [L580] free(a) VAL [\old(argc)=15, \old(newsize)=0, \old(num)=0, a={11:0}, argc=15, argv={12:6}, argv={12:6}, i=1, ind=0, malloc(sizeof(int))={11:0}, newsize=1, num=1] [L580] free(a) VAL [\old(argc)=15, \old(newsize)=0, \old(num)=0, a={11:0}, argc=15, argv={12:6}, argv={12:6}, i=1, ind=0, malloc(sizeof(int))={11:0}, newsize=1, num=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 39 locations, 5 error locations. UNSAFE Result, 2.9s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 190 SDtfs, 100 SDslu, 288 SDs, 0 SdLazy, 184 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 3860 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...