./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.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 bab7ebbfb2d1b8a4018ae99e314147bb3726df4b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/list-properties/splice_true-unreach-call_false-valid-memtrack.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 bab7ebbfb2d1b8a4018ae99e314147bb3726df4b .............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 19:41:26,958 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 19:41:26,959 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 19:41:26,971 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 19:41:26,972 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 19:41:26,973 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 19:41:26,975 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 19:41:26,977 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 19:41:26,978 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 19:41:26,979 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 19:41:26,980 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 19:41:26,981 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 19:41:26,982 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 19:41:26,983 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 19:41:26,984 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 19:41:26,985 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 19:41:26,986 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 19:41:26,988 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 19:41:26,990 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 19:41:26,992 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 19:41:26,993 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 19:41:26,994 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 19:41:26,997 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 19:41:26,998 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 19:41:26,998 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 19:41:26,999 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 19:41:27,000 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 19:41:27,001 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 19:41:27,002 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 19:41:27,004 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 19:41:27,004 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 19:41:27,005 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 19:41:27,005 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 19:41:27,005 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 19:41:27,006 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 19:41:27,007 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 19:41:27,007 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-14 19:41:27,032 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 19:41:27,034 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 19:41:27,035 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 19:41:27,036 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 19:41:27,037 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 19:41:27,037 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 19:41:27,037 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 19:41:27,037 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 19:41:27,038 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 19:41:27,038 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 19:41:27,038 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 19:41:27,038 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-14 19:41:27,038 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-14 19:41:27,038 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-14 19:41:27,039 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 19:41:27,041 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 19:41:27,041 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 19:41:27,041 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 19:41:27,041 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 19:41:27,041 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 19:41:27,041 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 19:41:27,044 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 19:41:27,044 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 19:41:27,044 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 19:41:27,044 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 19:41:27,044 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 -> bab7ebbfb2d1b8a4018ae99e314147bb3726df4b [2019-01-14 19:41:27,106 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 19:41:27,122 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 19:41:27,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 19:41:27,132 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 19:41:27,132 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 19:41:27,133 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i [2019-01-14 19:41:27,194 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af019405d/0442f8dfb009430f9ff51fb60bcb1152/FLAGf2c2ebb28 [2019-01-14 19:41:27,682 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 19:41:27,683 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i [2019-01-14 19:41:27,700 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af019405d/0442f8dfb009430f9ff51fb60bcb1152/FLAGf2c2ebb28 [2019-01-14 19:41:27,979 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af019405d/0442f8dfb009430f9ff51fb60bcb1152 [2019-01-14 19:41:27,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 19:41:27,983 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-14 19:41:27,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 19:41:27,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 19:41:27,988 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 19:41:27,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 07:41:27" (1/1) ... [2019-01-14 19:41:27,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c58d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:27, skipping insertion in model container [2019-01-14 19:41:27,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 07:41:27" (1/1) ... [2019-01-14 19:41:28,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 19:41:28,066 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 19:41:28,481 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 19:41:28,497 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 19:41:28,663 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 19:41:28,725 INFO L195 MainTranslator]: Completed translation [2019-01-14 19:41:28,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:28 WrapperNode [2019-01-14 19:41:28,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 19:41:28,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 19:41:28,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 19:41:28,728 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 19:41:28,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:28" (1/1) ... [2019-01-14 19:41:28,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:28" (1/1) ... [2019-01-14 19:41:28,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:28" (1/1) ... [2019-01-14 19:41:28,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:28" (1/1) ... [2019-01-14 19:41:28,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:28" (1/1) ... [2019-01-14 19:41:28,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:28" (1/1) ... [2019-01-14 19:41:28,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:28" (1/1) ... [2019-01-14 19:41:28,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 19:41:28,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 19:41:28,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 19:41:28,832 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 19:41:28,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 19:41:28,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-14 19:41:28,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 19:41:28,894 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-01-14 19:41:28,894 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-14 19:41:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-01-14 19:41:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-01-14 19:41:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-01-14 19:41:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-01-14 19:41:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-01-14 19:41:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-01-14 19:41:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-01-14 19:41:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-01-14 19:41:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-01-14 19:41:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-01-14 19:41:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-01-14 19:41:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-01-14 19:41:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-01-14 19:41:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-01-14 19:41:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-01-14 19:41:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-01-14 19:41:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-01-14 19:41:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-01-14 19:41:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-01-14 19:41:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-01-14 19:41:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-01-14 19:41:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-01-14 19:41:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-01-14 19:41:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-01-14 19:41:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-01-14 19:41:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-01-14 19:41:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-01-14 19:41:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-01-14 19:41:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-01-14 19:41:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-01-14 19:41:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-01-14 19:41:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-01-14 19:41:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-01-14 19:41:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-01-14 19:41:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-01-14 19:41:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-01-14 19:41:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-01-14 19:41:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-01-14 19:41:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-01-14 19:41:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-01-14 19:41:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-01-14 19:41:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-01-14 19:41:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-01-14 19:41:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-01-14 19:41:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-01-14 19:41:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-01-14 19:41:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-01-14 19:41:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-01-14 19:41:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-01-14 19:41:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-01-14 19:41:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-01-14 19:41:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-01-14 19:41:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-01-14 19:41:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-01-14 19:41:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-01-14 19:41:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-01-14 19:41:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-01-14 19:41:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-01-14 19:41:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-01-14 19:41:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-01-14 19:41:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-01-14 19:41:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-01-14 19:41:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-01-14 19:41:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-01-14 19:41:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-01-14 19:41:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-01-14 19:41:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2019-01-14 19:41:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-01-14 19:41:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-01-14 19:41:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-01-14 19:41:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-01-14 19:41:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-01-14 19:41:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-01-14 19:41:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-01-14 19:41:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-01-14 19:41:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-01-14 19:41:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-01-14 19:41:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-01-14 19:41:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-01-14 19:41:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-01-14 19:41:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-01-14 19:41:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-01-14 19:41:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-01-14 19:41:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-01-14 19:41:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-01-14 19:41:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-01-14 19:41:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-01-14 19:41:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-01-14 19:41:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-01-14 19:41:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-01-14 19:41:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-01-14 19:41:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-01-14 19:41:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-01-14 19:41:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-01-14 19:41:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-01-14 19:41:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-01-14 19:41:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-01-14 19:41:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-01-14 19:41:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-01-14 19:41:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-01-14 19:41:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-01-14 19:41:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-01-14 19:41:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-01-14 19:41:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-01-14 19:41:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-14 19:41:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-14 19:41:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 19:41:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-14 19:41:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-14 19:41:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 19:41:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-14 19:41:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 19:41:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 19:41:29,278 INFO L695 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-01-14 19:41:29,805 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 19:41:29,805 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-14 19:41:29,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 07:41:29 BoogieIcfgContainer [2019-01-14 19:41:29,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 19:41:29,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 19:41:29,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 19:41:29,811 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 19:41:29,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 07:41:27" (1/3) ... [2019-01-14 19:41:29,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715f037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 07:41:29, skipping insertion in model container [2019-01-14 19:41:29,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:28" (2/3) ... [2019-01-14 19:41:29,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715f037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 07:41:29, skipping insertion in model container [2019-01-14 19:41:29,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 07:41:29" (3/3) ... [2019-01-14 19:41:29,814 INFO L112 eAbstractionObserver]: Analyzing ICFG splice_true-unreach-call_false-valid-memtrack.i [2019-01-14 19:41:29,824 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 19:41:29,833 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2019-01-14 19:41:29,847 INFO L257 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2019-01-14 19:41:29,873 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 19:41:29,874 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 19:41:29,874 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-14 19:41:29,874 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 19:41:29,875 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 19:41:29,875 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 19:41:29,875 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 19:41:29,875 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 19:41:29,875 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 19:41:29,897 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2019-01-14 19:41:29,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-14 19:41:29,906 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 19:41:29,907 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 19:41:29,909 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2019-01-14 19:41:29,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 19:41:29,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1188482441, now seen corresponding path program 1 times [2019-01-14 19:41:29,918 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 19:41:29,918 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 19:41:29,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 19:41:29,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 19:41:29,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 19:41:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 19:41:30,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 19:41:30,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 19:41:30,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 19:41:30,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-14 19:41:30,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-14 19:41:30,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-14 19:41:30,073 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2019-01-14 19:41:30,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 19:41:30,096 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2019-01-14 19:41:30,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-14 19:41:30,098 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-01-14 19:41:30,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 19:41:30,107 INFO L225 Difference]: With dead ends: 83 [2019-01-14 19:41:30,108 INFO L226 Difference]: Without dead ends: 75 [2019-01-14 19:41:30,110 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-14 19:41:30,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-01-14 19:41:30,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2019-01-14 19:41:30,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-01-14 19:41:30,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2019-01-14 19:41:30,152 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 10 [2019-01-14 19:41:30,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 19:41:30,153 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2019-01-14 19:41:30,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-14 19:41:30,153 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2019-01-14 19:41:30,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-14 19:41:30,154 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 19:41:30,154 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 19:41:30,154 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2019-01-14 19:41:30,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 19:41:30,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1811785646, now seen corresponding path program 1 times [2019-01-14 19:41:30,155 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 19:41:30,155 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 19:41:30,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 19:41:30,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 19:41:30,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 19:41:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 19:41:30,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 19:41:30,324 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 19:41:30,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 19:41:30,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 19:41:30,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 19:41:30,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 19:41:30,327 INFO L87 Difference]: Start difference. First operand 75 states and 81 transitions. Second operand 4 states. [2019-01-14 19:41:30,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 19:41:30,725 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2019-01-14 19:41:30,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 19:41:30,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-01-14 19:41:30,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 19:41:30,727 INFO L225 Difference]: With dead ends: 82 [2019-01-14 19:41:30,728 INFO L226 Difference]: Without dead ends: 82 [2019-01-14 19:41:30,729 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 19:41:30,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-01-14 19:41:30,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 76. [2019-01-14 19:41:30,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-01-14 19:41:30,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2019-01-14 19:41:30,738 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 11 [2019-01-14 19:41:30,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 19:41:30,738 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2019-01-14 19:41:30,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 19:41:30,739 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2019-01-14 19:41:30,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-14 19:41:30,739 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 19:41:30,739 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 19:41:30,740 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2019-01-14 19:41:30,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 19:41:30,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1811785645, now seen corresponding path program 1 times [2019-01-14 19:41:30,740 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 19:41:30,741 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 19:41:30,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 19:41:30,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 19:41:30,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 19:41:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 19:41:31,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 19:41:31,002 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 19:41:31,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 19:41:31,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 19:41:31,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 19:41:31,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 19:41:31,004 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand 4 states. [2019-01-14 19:41:31,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 19:41:31,399 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2019-01-14 19:41:31,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 19:41:31,400 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-01-14 19:41:31,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 19:41:31,402 INFO L225 Difference]: With dead ends: 90 [2019-01-14 19:41:31,402 INFO L226 Difference]: Without dead ends: 90 [2019-01-14 19:41:31,403 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 19:41:31,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-01-14 19:41:31,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 83. [2019-01-14 19:41:31,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-01-14 19:41:31,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2019-01-14 19:41:31,412 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 11 [2019-01-14 19:41:31,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 19:41:31,412 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2019-01-14 19:41:31,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 19:41:31,412 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2019-01-14 19:41:31,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-01-14 19:41:31,413 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 19:41:31,413 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 19:41:31,414 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2019-01-14 19:41:31,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 19:41:31,414 INFO L82 PathProgramCache]: Analyzing trace with hash -52140124, now seen corresponding path program 1 times [2019-01-14 19:41:31,414 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 19:41:31,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 19:41:31,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 19:41:31,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 19:41:31,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 19:41:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 19:41:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 19:41:31,473 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 19:41:31,484 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-01-14 19:41:31,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 07:41:31 BoogieIcfgContainer [2019-01-14 19:41:31,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 19:41:31,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 19:41:31,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 19:41:31,499 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 19:41:31,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 07:41:29" (3/4) ... [2019-01-14 19:41:31,503 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 19:41:31,503 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 19:41:31,504 INFO L168 Benchmark]: Toolchain (without parser) took 3521.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 952.7 MB in the beginning and 988.9 MB in the end (delta: -36.2 MB). Peak memory consumption was 98.6 MB. Max. memory is 11.5 GB. [2019-01-14 19:41:31,506 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. [2019-01-14 19:41:31,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2019-01-14 19:41:31,508 INFO L168 Benchmark]: Boogie Preprocessor took 104.40 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. [2019-01-14 19:41:31,508 INFO L168 Benchmark]: RCFGBuilder took 974.98 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-01-14 19:41:31,509 INFO L168 Benchmark]: TraceAbstraction took 1690.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.9 MB in the end (delta: 69.9 MB). Peak memory consumption was 69.9 MB. Max. memory is 11.5 GB. [2019-01-14 19:41:31,510 INFO L168 Benchmark]: Witness Printer took 5.02 ms. Allocated memory is still 1.2 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 19:41:31,514 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 741.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 104.40 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 974.98 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1690.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.9 MB in the end (delta: 69.9 MB). Peak memory consumption was 69.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.02 ms. Allocated memory is still 1.2 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 626]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 626. Possible FailurePath: [L627] int flag = 1; [L628] List a = (List) malloc(sizeof(struct node)); VAL [a={2:0}, flag=1, malloc(sizeof(struct node))={2:0}] [L629] COND FALSE !(a == 0) VAL [a={2:0}, flag=1, malloc(sizeof(struct node))={2:0}] [L630] List t; [L631] List l1; [L632] List l2; [L633] List b; [L634] List u; [L635] List p = a; VAL [a={2:0}, flag=1, malloc(sizeof(struct node))={2:0}, p={2:0}] [L636] COND FALSE !(__VERIFIER_nondet_int()) [L649] p->h = 3 VAL [a={2:0}, flag=1, malloc(sizeof(struct node))={2:0}, p={2:0}] [L650] EXPR a->h VAL [a={2:0}, a->h=3, flag=1, malloc(sizeof(struct node))={2:0}, p={2:0}] [L650] COND TRUE a->h == 3 [L650] return 0; VAL [\result=0, a={2:0}, flag=1, malloc(sizeof(struct node))={2:0}, p={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 84 locations, 29 error locations. UNSAFE Result, 1.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 171 SDtfs, 219 SDslu, 50 SDs, 0 SdLazy, 148 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=0, 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, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 881 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-0ed9222-m [2019-01-14 19:41:33,792 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 19:41:33,793 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 19:41:33,809 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 19:41:33,810 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 19:41:33,811 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 19:41:33,812 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 19:41:33,814 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 19:41:33,815 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 19:41:33,817 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 19:41:33,818 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 19:41:33,818 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 19:41:33,819 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 19:41:33,820 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 19:41:33,821 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 19:41:33,822 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 19:41:33,823 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 19:41:33,825 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 19:41:33,827 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 19:41:33,829 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 19:41:33,830 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 19:41:33,832 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 19:41:33,834 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 19:41:33,835 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 19:41:33,835 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 19:41:33,836 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 19:41:33,838 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 19:41:33,838 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 19:41:33,839 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 19:41:33,841 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 19:41:33,841 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 19:41:33,842 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 19:41:33,842 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 19:41:33,842 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 19:41:33,843 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 19:41:33,844 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 19:41:33,844 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-01-14 19:41:33,861 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 19:41:33,861 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 19:41:33,862 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 19:41:33,862 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 19:41:33,863 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 19:41:33,863 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 19:41:33,863 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 19:41:33,863 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 19:41:33,863 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 19:41:33,863 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 19:41:33,864 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 19:41:33,864 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-14 19:41:33,864 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-14 19:41:33,864 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-14 19:41:33,864 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 19:41:33,865 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-14 19:41:33,865 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-14 19:41:33,865 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 19:41:33,865 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 19:41:33,865 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 19:41:33,865 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 19:41:33,866 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 19:41:33,866 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 19:41:33,866 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 19:41:33,866 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 19:41:33,866 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-14 19:41:33,867 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 19:41:33,867 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-14 19:41:33,867 INFO L133 SettingsManager]: * Logic for external solver=AUFBV 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 -> bab7ebbfb2d1b8a4018ae99e314147bb3726df4b [2019-01-14 19:41:33,928 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 19:41:33,945 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 19:41:33,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 19:41:33,952 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 19:41:33,952 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 19:41:33,954 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i [2019-01-14 19:41:34,023 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ddab717/d16d13c419d14060ad746b4038654131/FLAGdef11fdb2 [2019-01-14 19:41:34,546 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 19:41:34,548 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-properties/splice_true-unreach-call_false-valid-memtrack.i [2019-01-14 19:41:34,566 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ddab717/d16d13c419d14060ad746b4038654131/FLAGdef11fdb2 [2019-01-14 19:41:34,815 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ddab717/d16d13c419d14060ad746b4038654131 [2019-01-14 19:41:34,821 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 19:41:34,824 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-14 19:41:34,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 19:41:34,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 19:41:34,831 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 19:41:34,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 07:41:34" (1/1) ... [2019-01-14 19:41:34,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@238ff1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:34, skipping insertion in model container [2019-01-14 19:41:34,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 07:41:34" (1/1) ... [2019-01-14 19:41:34,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 19:41:34,900 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 19:41:35,395 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 19:41:35,419 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 19:41:35,584 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 19:41:35,639 INFO L195 MainTranslator]: Completed translation [2019-01-14 19:41:35,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:35 WrapperNode [2019-01-14 19:41:35,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 19:41:35,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 19:41:35,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 19:41:35,643 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 19:41:35,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:35" (1/1) ... [2019-01-14 19:41:35,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:35" (1/1) ... [2019-01-14 19:41:35,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:35" (1/1) ... [2019-01-14 19:41:35,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:35" (1/1) ... [2019-01-14 19:41:35,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:35" (1/1) ... [2019-01-14 19:41:35,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:35" (1/1) ... [2019-01-14 19:41:35,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:35" (1/1) ... [2019-01-14 19:41:35,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 19:41:35,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 19:41:35,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 19:41:35,718 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 19:41:35,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 19:41:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-14 19:41:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 19:41:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-01-14 19:41:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-01-14 19:41:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-14 19:41:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-01-14 19:41:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-01-14 19:41:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-01-14 19:41:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-01-14 19:41:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-01-14 19:41:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-01-14 19:41:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-01-14 19:41:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-01-14 19:41:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-01-14 19:41:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-01-14 19:41:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-01-14 19:41:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-01-14 19:41:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-01-14 19:41:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-01-14 19:41:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-01-14 19:41:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-01-14 19:41:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-01-14 19:41:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-01-14 19:41:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-01-14 19:41:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-01-14 19:41:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-01-14 19:41:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-01-14 19:41:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-01-14 19:41:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-01-14 19:41:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-01-14 19:41:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-01-14 19:41:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-01-14 19:41:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-01-14 19:41:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-01-14 19:41:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-01-14 19:41:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-01-14 19:41:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-01-14 19:41:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-01-14 19:41:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-01-14 19:41:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-01-14 19:41:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-01-14 19:41:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-01-14 19:41:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-01-14 19:41:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-01-14 19:41:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-01-14 19:41:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-01-14 19:41:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-01-14 19:41:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-01-14 19:41:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-01-14 19:41:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-01-14 19:41:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-01-14 19:41:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-01-14 19:41:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-01-14 19:41:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-01-14 19:41:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-01-14 19:41:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-01-14 19:41:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-01-14 19:41:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-01-14 19:41:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-01-14 19:41:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-01-14 19:41:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-01-14 19:41:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-01-14 19:41:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-01-14 19:41:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-01-14 19:41:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-01-14 19:41:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-01-14 19:41:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-01-14 19:41:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-01-14 19:41:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-01-14 19:41:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-01-14 19:41:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-01-14 19:41:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2019-01-14 19:41:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-01-14 19:41:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-01-14 19:41:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-01-14 19:41:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-01-14 19:41:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-01-14 19:41:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-01-14 19:41:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-01-14 19:41:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-01-14 19:41:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-01-14 19:41:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-01-14 19:41:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-01-14 19:41:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-01-14 19:41:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-01-14 19:41:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-01-14 19:41:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-01-14 19:41:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-01-14 19:41:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-01-14 19:41:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-01-14 19:41:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-01-14 19:41:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-01-14 19:41:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-01-14 19:41:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-01-14 19:41:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-01-14 19:41:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-01-14 19:41:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-01-14 19:41:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-01-14 19:41:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-01-14 19:41:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-01-14 19:41:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-01-14 19:41:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-01-14 19:41:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-01-14 19:41:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-01-14 19:41:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-01-14 19:41:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-01-14 19:41:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-01-14 19:41:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-01-14 19:41:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-01-14 19:41:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-14 19:41:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-14 19:41:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-01-14 19:41:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-14 19:41:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-14 19:41:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-01-14 19:41:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-14 19:41:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 19:41:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-01-14 19:41:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 19:41:36,226 INFO L695 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-01-14 19:41:36,831 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 19:41:36,831 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-14 19:41:36,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 07:41:36 BoogieIcfgContainer [2019-01-14 19:41:36,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 19:41:36,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 19:41:36,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 19:41:36,838 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 19:41:36,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 07:41:34" (1/3) ... [2019-01-14 19:41:36,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196e2213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 07:41:36, skipping insertion in model container [2019-01-14 19:41:36,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:41:35" (2/3) ... [2019-01-14 19:41:36,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196e2213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 07:41:36, skipping insertion in model container [2019-01-14 19:41:36,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 07:41:36" (3/3) ... [2019-01-14 19:41:36,843 INFO L112 eAbstractionObserver]: Analyzing ICFG splice_true-unreach-call_false-valid-memtrack.i [2019-01-14 19:41:36,853 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 19:41:36,863 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2019-01-14 19:41:36,879 INFO L257 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2019-01-14 19:41:36,907 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 19:41:36,908 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 19:41:36,908 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-14 19:41:36,910 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 19:41:36,910 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 19:41:36,910 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 19:41:36,910 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 19:41:36,911 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 19:41:36,911 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 19:41:36,929 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2019-01-14 19:41:36,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-14 19:41:36,938 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 19:41:36,939 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 19:41:36,942 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION]=== [2019-01-14 19:41:36,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 19:41:36,948 INFO L82 PathProgramCache]: Analyzing trace with hash 765401291, now seen corresponding path program 1 times [2019-01-14 19:41:36,953 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-14 19:41:36,953 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-14 19:41:36,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 19:41:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 19:41:37,048 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 19:41:37,109 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-01-14 19:41:37,111 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-14 19:41:37,137 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 19:41:37,137 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-01-14 19:41:37,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 19:41:37,227 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-14 19:41:37,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 19:41:37,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 19:41:37,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 19:41:37,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 19:41:37,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 19:41:37,251 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 4 states. [2019-01-14 19:41:38,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 19:41:38,371 INFO L93 Difference]: Finished difference Result 89 states and 100 transitions. [2019-01-14 19:41:38,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 19:41:38,374 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-01-14 19:41:38,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 19:41:38,382 INFO L225 Difference]: With dead ends: 89 [2019-01-14 19:41:38,383 INFO L226 Difference]: Without dead ends: 80 [2019-01-14 19:41:38,384 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 19:41:38,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-01-14 19:41:38,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2019-01-14 19:41:38,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-01-14 19:41:38,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2019-01-14 19:41:38,426 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 10 [2019-01-14 19:41:38,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 19:41:38,426 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2019-01-14 19:41:38,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 19:41:38,426 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2019-01-14 19:41:38,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-14 19:41:38,427 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 19:41:38,427 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 19:41:38,428 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION]=== [2019-01-14 19:41:38,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 19:41:38,428 INFO L82 PathProgramCache]: Analyzing trace with hash 765401292, now seen corresponding path program 1 times [2019-01-14 19:41:38,428 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-14 19:41:38,428 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-14 19:41:38,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 19:41:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 19:41:38,492 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 19:41:38,508 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-01-14 19:41:38,508 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-14 19:41:38,519 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 19:41:38,520 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-01-14 19:41:38,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 19:41:38,711 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-14 19:41:38,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 19:41:38,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 19:41:38,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 19:41:38,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 19:41:38,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 19:41:38,718 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand 4 states. [2019-01-14 19:41:39,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 19:41:39,202 INFO L93 Difference]: Finished difference Result 88 states and 97 transitions. [2019-01-14 19:41:39,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 19:41:39,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-01-14 19:41:39,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 19:41:39,206 INFO L225 Difference]: With dead ends: 88 [2019-01-14 19:41:39,206 INFO L226 Difference]: Without dead ends: 88 [2019-01-14 19:41:39,207 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 19:41:39,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-01-14 19:41:39,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81. [2019-01-14 19:41:39,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-01-14 19:41:39,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2019-01-14 19:41:39,217 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 10 [2019-01-14 19:41:39,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 19:41:39,218 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2019-01-14 19:41:39,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 19:41:39,218 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2019-01-14 19:41:39,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-14 19:41:39,219 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 19:41:39,219 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 19:41:39,219 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION]=== [2019-01-14 19:41:39,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 19:41:39,220 INFO L82 PathProgramCache]: Analyzing trace with hash 88522705, now seen corresponding path program 1 times [2019-01-14 19:41:39,220 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-14 19:41:39,221 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-14 19:41:39,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 19:41:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 19:41:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 19:41:39,390 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 19:41:39,409 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-01-14 19:41:39,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 07:41:39 BoogieIcfgContainer [2019-01-14 19:41:39,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 19:41:39,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 19:41:39,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 19:41:39,451 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 19:41:39,452 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 07:41:36" (3/4) ... [2019-01-14 19:41:39,460 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 19:41:39,461 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 19:41:39,461 INFO L168 Benchmark]: Toolchain (without parser) took 4638.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 952.7 MB in the beginning and 974.8 MB in the end (delta: -22.1 MB). Peak memory consumption was 129.9 MB. Max. memory is 11.5 GB. [2019-01-14 19:41:39,469 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 19:41:39,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 816.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2019-01-14 19:41:39,472 INFO L168 Benchmark]: Boogie Preprocessor took 74.77 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. [2019-01-14 19:41:39,473 INFO L168 Benchmark]: RCFGBuilder took 1115.35 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: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. [2019-01-14 19:41:39,474 INFO L168 Benchmark]: TraceAbstraction took 2615.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 974.8 MB in the end (delta: 92.1 MB). Peak memory consumption was 92.1 MB. Max. memory is 11.5 GB. [2019-01-14 19:41:39,475 INFO L168 Benchmark]: Witness Printer took 10.55 ms. Allocated memory is still 1.2 GB. Free memory is still 974.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 19:41:39,484 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 816.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.77 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 1115.35 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: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2615.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 974.8 MB in the end (delta: 92.1 MB). Peak memory consumption was 92.1 MB. Max. memory is 11.5 GB. * Witness Printer took 10.55 ms. Allocated memory is still 1.2 GB. Free memory is still 974.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 626]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 626. Possible FailurePath: [L627] int flag = 1; [L628] List a = (List) malloc(sizeof(struct node)); VAL [a={1073741824:0}, flag=1, malloc(sizeof(struct node))={1073741824:0}] [L629] COND FALSE !(a == 0) VAL [a={1073741824:0}, flag=1, malloc(sizeof(struct node))={1073741824:0}] [L630] List t; [L631] List l1; [L632] List l2; [L633] List b; [L634] List u; [L635] List p = a; VAL [a={1073741824:0}, flag=1, malloc(sizeof(struct node))={1073741824:0}, p={1073741824:0}] [L636] COND FALSE !(__VERIFIER_nondet_int()) [L649] p->h = 3 VAL [a={1073741824:0}, flag=1, malloc(sizeof(struct node))={1073741824:0}, p={1073741824:0}] [L650] EXPR a->h VAL [a={1073741824:0}, a->h=3, flag=1, malloc(sizeof(struct node))={1073741824:0}, p={1073741824:0}] [L650] COND TRUE a->h == 3 [L650] return 0; VAL [\result=0, a={1073741824:0}, flag=1, malloc(sizeof(struct node))={1073741824:0}, p={1073741824:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 86 locations, 29 error locations. UNSAFE Result, 2.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 86 SDtfs, 225 SDslu, 54 SDs, 0 SdLazy, 158 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, 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, 2 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 666 SizeOfPredicates, 6 NumberOfNonLiveVariables, 84 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...