./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/array-examples/relax_false-valid-deref.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-examples/relax_false-valid-deref.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 e02a752b8526c7ea13dd41e170cc478e0b3b0993 ................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 22:44:39,031 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:44:39,033 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:44:39,045 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:44:39,045 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:44:39,046 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:44:39,048 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:44:39,050 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:44:39,051 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:44:39,052 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:44:39,053 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:44:39,053 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:44:39,054 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:44:39,055 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:44:39,057 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:44:39,057 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:44:39,058 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:44:39,060 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:44:39,063 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:44:39,064 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:44:39,066 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:44:39,067 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:44:39,070 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:44:39,070 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:44:39,070 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:44:39,071 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:44:39,073 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:44:39,074 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:44:39,075 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:44:39,076 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:44:39,076 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:44:39,077 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:44:39,077 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:44:39,078 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:44:39,079 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:44:39,080 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:44:39,080 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 22:44:39,096 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:44:39,097 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:44:39,097 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:44:39,098 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:44:39,098 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:44:39,098 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:44:39,099 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:44:39,099 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:44:39,099 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:44:39,099 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:44:39,099 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:44:39,101 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:44:39,101 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:44:39,101 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:44:39,101 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:44:39,101 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:44:39,102 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:44:39,102 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:44:39,102 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:44:39,102 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:44:39,102 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:44:39,103 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:44:39,103 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:44:39,103 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:44:39,103 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:44:39,103 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:44:39,103 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 22:44:39,105 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:44:39,105 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 -> e02a752b8526c7ea13dd41e170cc478e0b3b0993 [2018-11-28 22:44:39,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:44:39,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:44:39,190 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:44:39,192 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:44:39,193 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:44:39,193 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-examples/relax_false-valid-deref.i [2018-11-28 22:44:39,254 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ae965f9/5915c8aa3f82413dab5249dd1139271e/FLAG4b6014396 [2018-11-28 22:44:39,810 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:44:39,811 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-examples/relax_false-valid-deref.i [2018-11-28 22:44:39,834 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ae965f9/5915c8aa3f82413dab5249dd1139271e/FLAG4b6014396 [2018-11-28 22:44:40,047 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ae965f9/5915c8aa3f82413dab5249dd1139271e [2018-11-28 22:44:40,050 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:44:40,052 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:44:40,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:44:40,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:44:40,059 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:44:40,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:44:40" (1/1) ... [2018-11-28 22:44:40,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17189fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:40, skipping insertion in model container [2018-11-28 22:44:40,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:44:40" (1/1) ... [2018-11-28 22:44:40,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:44:40,125 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:44:40,532 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:44:40,544 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:44:40,670 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:44:40,732 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:44:40,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:40 WrapperNode [2018-11-28 22:44:40,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:44:40,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:44:40,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:44:40,735 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:44:40,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:40" (1/1) ... [2018-11-28 22:44:40,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:40" (1/1) ... [2018-11-28 22:44:40,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:40" (1/1) ... [2018-11-28 22:44:40,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:40" (1/1) ... [2018-11-28 22:44:40,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:40" (1/1) ... [2018-11-28 22:44:40,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:40" (1/1) ... [2018-11-28 22:44:40,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:40" (1/1) ... [2018-11-28 22:44:40,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:44:40,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:44:40,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:44:40,806 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:44:40,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:40" (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 22:44:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:44:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:44:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 22:44:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-28 22:44:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-28 22:44:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure is_relaxed_prefix [2018-11-28 22:44:40,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:44:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-28 22:44:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2018-11-28 22:44:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 22:44:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 22:44:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-28 22:44:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-28 22:44:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:44:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:44:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:44:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:44:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:44:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:44:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:44:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:44:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:44:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:44:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:44:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:44:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:44:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:44:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:44:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:44:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:44:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:44:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:44:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:44:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:44:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:44:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:44:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:44:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:44:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:44:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:44:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:44:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:44:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:44:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:44:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:44:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:44:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:44:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:44:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:44:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:44:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:44:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:44:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:44:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:44:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:44:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:44:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:44:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:44:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:44:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:44:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:44:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:44:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:44:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:44:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:44:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:44:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:44:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:44:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:44:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:44:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:44:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:44:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:44:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:44:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:44:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:44:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:44:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:44:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:44:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:44:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:44:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:44:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:44:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:44:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:44:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:44:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:44:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:44:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:44:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:44:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:44:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:44:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:44:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:44:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:44:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:44:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:44:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:44:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:44:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:44:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:44:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:44:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:44:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:44:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:44:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:44:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:44:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:44:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:44:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:44:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:44:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:44:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:44:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure is_relaxed_prefix [2018-11-28 22:44:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 22:44:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:44:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:44:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:44:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:44:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:44:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 22:44:41,926 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:44:41,927 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-11-28 22:44:41,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:41 BoogieIcfgContainer [2018-11-28 22:44:41,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:44:41,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:44:41,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:44:41,932 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:44:41,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:44:40" (1/3) ... [2018-11-28 22:44:41,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a71224a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:44:41, skipping insertion in model container [2018-11-28 22:44:41,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:40" (2/3) ... [2018-11-28 22:44:41,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a71224a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:44:41, skipping insertion in model container [2018-11-28 22:44:41,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:41" (3/3) ... [2018-11-28 22:44:41,936 INFO L112 eAbstractionObserver]: Analyzing ICFG relax_false-valid-deref.i [2018-11-28 22:44:41,946 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:44:41,955 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 25 error locations. [2018-11-28 22:44:41,973 INFO L257 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2018-11-28 22:44:42,001 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:44:42,002 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:44:42,002 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:44:42,002 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:44:42,003 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:44:42,003 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:44:42,003 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:44:42,003 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:44:42,003 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:44:42,023 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2018-11-28 22:44:42,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 22:44:42,034 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:42,035 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:42,038 INFO L423 AbstractCegarLoop]: === Iteration 1 === [is_relaxed_prefixErr0REQUIRES_VIOLATION, is_relaxed_prefixErr1REQUIRES_VIOLATION, is_relaxed_prefixErr2REQUIRES_VIOLATION, is_relaxed_prefixErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION]=== [2018-11-28 22:44:42,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:42,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1054971632, now seen corresponding path program 1 times [2018-11-28 22:44:42,048 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:42,048 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:42,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:42,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:42,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:44:42,329 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 22:44:42,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:44:42,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:44:42,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:44:42,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:44:42,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:44:42,357 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 5 states. [2018-11-28 22:44:42,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:44:42,694 INFO L93 Difference]: Finished difference Result 78 states and 94 transitions. [2018-11-28 22:44:42,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:44:42,696 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-28 22:44:42,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:44:42,707 INFO L225 Difference]: With dead ends: 78 [2018-11-28 22:44:42,707 INFO L226 Difference]: Without dead ends: 74 [2018-11-28 22:44:42,709 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:44:42,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-28 22:44:42,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-11-28 22:44:42,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-28 22:44:42,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 90 transitions. [2018-11-28 22:44:42,765 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 90 transitions. Word has length 11 [2018-11-28 22:44:42,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:44:42,766 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 90 transitions. [2018-11-28 22:44:42,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:44:42,766 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 90 transitions. [2018-11-28 22:44:42,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 22:44:42,767 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:44:42,767 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:44:42,767 INFO L423 AbstractCegarLoop]: === Iteration 2 === [is_relaxed_prefixErr0REQUIRES_VIOLATION, is_relaxed_prefixErr1REQUIRES_VIOLATION, is_relaxed_prefixErr2REQUIRES_VIOLATION, is_relaxed_prefixErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr11REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION]=== [2018-11-28 22:44:42,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:44:42,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1054971631, now seen corresponding path program 1 times [2018-11-28 22:44:42,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:44:42,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:44:42,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:42,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:44:42,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:44:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:44:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:44:42,923 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 22:44:42,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:44:42 BoogieIcfgContainer [2018-11-28 22:44:42,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:44:42,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:44:42,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:44:42,954 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:44:42,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:41" (3/4) ... [2018-11-28 22:44:42,957 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 22:44:43,015 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 22:44:43,015 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:44:43,016 INFO L168 Benchmark]: Toolchain (without parser) took 2964.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 948.7 MB in the beginning and 1.0 GB in the end (delta: -66.6 MB). Peak memory consumption was 72.9 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:43,018 INFO L168 Benchmark]: CDTParser took 0.16 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 22:44:43,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:43,020 INFO L168 Benchmark]: Boogie Preprocessor took 71.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:44:43,023 INFO L168 Benchmark]: RCFGBuilder took 1121.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:43,024 INFO L168 Benchmark]: TraceAbstraction took 1024.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. [2018-11-28 22:44:43,025 INFO L168 Benchmark]: Witness Printer took 61.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:44:43,034 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 680.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1121.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1024.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. * Witness Printer took 61.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 569]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L584] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L584] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L585] int *pat=malloc(sizeof(int)*pat_len); [L586] int *a=malloc(sizeof(int)*a_len); VAL [a={3:0}, a_len=-2, malloc(sizeof(int)*a_len)={3:0}, malloc(sizeof(int)*pat_len)={5:0}, pat={5:0}, pat_len=-4294967295] [L587] CALL is_relaxed_prefix(pat, pat_len, a, a_len) VAL [\old(a_length)=4294967294, \old(pat_length)=1, a={3:0}, pat={5:0}] [L564] COND FALSE !(pat_length>a_length+1) [L566] int shift=0; [L567] int i=0; VAL [\old(a_length)=4294967294, \old(pat_length)=1, a={3:0}, a={3:0}, a_length=4294967294, i=0, pat={5:0}, pat={5:0}, pat_length=1, shift=0] [L567] COND TRUE i