./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-ext-properties/test-0158_1_false-valid-memtrack_true-termination.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 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 22:48:53,802 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:48:53,804 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:48:53,817 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:48:53,818 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:48:53,819 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:48:53,821 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:48:53,830 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:48:53,832 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:48:53,833 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:48:53,834 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:48:53,834 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:48:53,835 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:48:53,836 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:48:53,837 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:48:53,838 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:48:53,839 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:48:53,841 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:48:53,843 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:48:53,844 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:48:53,845 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:48:53,846 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:48:53,849 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:48:53,849 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:48:53,849 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:48:53,850 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:48:53,855 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:48:53,856 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:48:53,856 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:48:53,858 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:48:53,858 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:48:53,858 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:48:53,861 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:48:53,861 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:48:53,862 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:48:53,863 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:48:53,863 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 22:48:53,890 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:48:53,891 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:48:53,892 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:48:53,894 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:48:53,894 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:48:53,894 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:48:53,895 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:48:53,895 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:48:53,895 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:48:53,895 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:48:53,895 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:48:53,896 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:48:53,896 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:48:53,896 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:48:53,896 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:48:53,896 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:48:53,896 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:48:53,898 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:48:53,898 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:48:53,898 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:48:53,898 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:48:53,898 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:48:53,899 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:48:53,899 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:48:53,899 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:48:53,899 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:48:53,899 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 22:48:53,900 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:48:53,900 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 -> 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 [2018-11-28 22:48:53,951 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:48:53,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:48:53,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:48:53,977 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:48:53,977 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:48:53,979 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-11-28 22:48:54,048 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/182c2a03d/0a72cd90b8f040ef82f7b73e33b04485/FLAGeb8e5bb68 [2018-11-28 22:48:54,558 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:48:54,559 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-11-28 22:48:54,572 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/182c2a03d/0a72cd90b8f040ef82f7b73e33b04485/FLAGeb8e5bb68 [2018-11-28 22:48:54,827 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/182c2a03d/0a72cd90b8f040ef82f7b73e33b04485 [2018-11-28 22:48:54,830 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:48:54,832 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:48:54,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:48:54,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:48:54,836 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:48:54,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:48:54" (1/1) ... [2018-11-28 22:48:54,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a02fbf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:54, skipping insertion in model container [2018-11-28 22:48:54,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:48:54" (1/1) ... [2018-11-28 22:48:54,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:48:54,899 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:48:55,283 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:48:55,293 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:48:55,368 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:48:55,430 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:48:55,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:55 WrapperNode [2018-11-28 22:48:55,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:48:55,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:48:55,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:48:55,432 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:48:55,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:55" (1/1) ... [2018-11-28 22:48:55,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:55" (1/1) ... [2018-11-28 22:48:55,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:55" (1/1) ... [2018-11-28 22:48:55,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:55" (1/1) ... [2018-11-28 22:48:55,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:55" (1/1) ... [2018-11-28 22:48:55,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:55" (1/1) ... [2018-11-28 22:48:55,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:55" (1/1) ... [2018-11-28 22:48:55,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:48:55,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:48:55,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:48:55,577 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:48:55,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:48:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:48:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:48:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:48:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 22:48:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:48:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:48:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:48:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:48:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:48:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:48:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:48:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:48:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:48:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:48:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:48:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:48:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:48:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:48:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:48:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:48:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:48:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:48:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:48:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:48:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:48:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:48:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:48:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:48:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:48:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:48:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:48:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:48:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:48:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:48:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:48:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:48:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:48:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:48:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:48:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:48:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:48:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:48:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:48:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:48:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:48:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:48:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:48:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:48:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:48:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:48:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:48:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:48:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:48:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:48:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:48:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:48:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:48:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:48:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:48:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:48:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:48:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:48:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:48:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:48:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:48:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:48:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:48:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:48:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 22:48:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:48:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:48:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:48:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:48:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:48:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:48:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:48:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:48:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:48:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:48:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:48:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:48:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:48:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:48:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:48:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:48:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:48:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:48:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:48:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:48:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:48:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:48:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:48:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:48:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:48:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:48:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:48:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:48:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:48:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:48:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:48:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:48:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:48:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:48:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:48:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:48:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 22:48:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:48:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:48:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 22:48:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 22:48:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 22:48:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:48:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:48:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:48:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 22:48:56,308 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:48:56,308 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 22:48:56,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:48:56 BoogieIcfgContainer [2018-11-28 22:48:56,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:48:56,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:48:56,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:48:56,314 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:48:56,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:48:54" (1/3) ... [2018-11-28 22:48:56,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcaab09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:48:56, skipping insertion in model container [2018-11-28 22:48:56,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:48:55" (2/3) ... [2018-11-28 22:48:56,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcaab09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:48:56, skipping insertion in model container [2018-11-28 22:48:56,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:48:56" (3/3) ... [2018-11-28 22:48:56,318 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1_false-valid-memtrack_true-termination.i [2018-11-28 22:48:56,328 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:48:56,340 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-11-28 22:48:56,359 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-11-28 22:48:56,387 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:48:56,388 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:48:56,388 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:48:56,388 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:48:56,389 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:48:56,389 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:48:56,389 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:48:56,389 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:48:56,389 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:48:56,405 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-28 22:48:56,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 22:48:56,416 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:48:56,417 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:48:56,419 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:48:56,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:48:56,426 INFO L82 PathProgramCache]: Analyzing trace with hash 222801288, now seen corresponding path program 1 times [2018-11-28 22:48:56,428 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:48:56,428 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:48:56,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:56,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:48:56,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:48:56,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:48:56,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:48:56,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:48:56,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:48:56,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:48:56,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:48:56,631 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2018-11-28 22:48:56,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:48:56,793 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-11-28 22:48:56,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:48:56,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 22:48:56,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:48:56,804 INFO L225 Difference]: With dead ends: 25 [2018-11-28 22:48:56,804 INFO L226 Difference]: Without dead ends: 22 [2018-11-28 22:48:56,806 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:48:56,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-28 22:48:56,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-28 22:48:56,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-28 22:48:56,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-11-28 22:48:56,840 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2018-11-28 22:48:56,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:48:56,840 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-11-28 22:48:56,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:48:56,841 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-11-28 22:48:56,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 22:48:56,841 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:48:56,841 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:48:56,841 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:48:56,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:48:56,842 INFO L82 PathProgramCache]: Analyzing trace with hash 222801289, now seen corresponding path program 1 times [2018-11-28 22:48:56,842 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:48:56,842 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:48:56,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:56,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:48:56,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:48:56,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:48:56,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:48:56,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:48:56,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:48:56,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:48:56,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:48:56,994 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 3 states. [2018-11-28 22:48:57,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:48:57,131 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-11-28 22:48:57,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:48:57,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 22:48:57,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:48:57,133 INFO L225 Difference]: With dead ends: 17 [2018-11-28 22:48:57,133 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 22:48:57,134 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:48:57,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 22:48:57,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-28 22:48:57,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-28 22:48:57,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-11-28 22:48:57,140 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2018-11-28 22:48:57,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:48:57,142 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-11-28 22:48:57,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:48:57,142 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-11-28 22:48:57,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 22:48:57,143 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:48:57,143 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:48:57,143 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:48:57,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:48:57,144 INFO L82 PathProgramCache]: Analyzing trace with hash 88169612, now seen corresponding path program 1 times [2018-11-28 22:48:57,144 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:48:57,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:48:57,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:57,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:48:57,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:48:57,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:48:57,289 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:48:57,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:48:57,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 22:48:57,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 22:48:57,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:48:57,290 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2018-11-28 22:48:57,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:48:57,392 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2018-11-28 22:48:57,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 22:48:57,393 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-28 22:48:57,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:48:57,393 INFO L225 Difference]: With dead ends: 21 [2018-11-28 22:48:57,394 INFO L226 Difference]: Without dead ends: 21 [2018-11-28 22:48:57,394 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:48:57,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-28 22:48:57,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2018-11-28 22:48:57,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-28 22:48:57,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-11-28 22:48:57,399 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2018-11-28 22:48:57,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:48:57,400 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-11-28 22:48:57,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 22:48:57,400 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-11-28 22:48:57,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 22:48:57,401 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:48:57,401 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:48:57,401 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 22:48:57,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:48:57,402 INFO L82 PathProgramCache]: Analyzing trace with hash 235932972, now seen corresponding path program 1 times [2018-11-28 22:48:57,402 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:48:57,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:48:57,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:57,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:48:57,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:48:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:48:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:48:57,467 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 22:48:57,481 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 22:48:57,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:48:57 BoogieIcfgContainer [2018-11-28 22:48:57,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:48:57,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:48:57,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:48:57,495 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:48:57,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:48:56" (3/4) ... [2018-11-28 22:48:57,501 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 22:48:57,501 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:48:57,502 INFO L168 Benchmark]: Toolchain (without parser) took 2671.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -69.1 MB). Peak memory consumption was 43.6 MB. Max. memory is 11.5 GB. [2018-11-28 22:48:57,504 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:48:57,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.62 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 929.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-28 22:48:57,505 INFO L168 Benchmark]: Boogie Preprocessor took 144.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-28 22:48:57,506 INFO L168 Benchmark]: RCFGBuilder took 732.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. [2018-11-28 22:48:57,507 INFO L168 Benchmark]: TraceAbstraction took 1185.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. [2018-11-28 22:48:57,508 INFO L168 Benchmark]: Witness Printer took 6.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:48:57,512 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 598.62 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 929.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 144.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 732.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1185.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. * Witness Printer took 6.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.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: 620]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 620. Possible FailurePath: [L622-L629] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L630] data.p0 = malloc(37U) VAL [data={40:0}, malloc(37U)={39:0}] [L631] COND FALSE !(__VERIFIER_nondet_int()) [L634] data.str.p2 = 30 VAL [data={40:0}, malloc(37U)={39:0}] [L636] EXPR data.str.p2 VAL [data={40:0}, data.str.p2=30, malloc(37U)={39:0}] [L636] COND FALSE !(25 > data.str.p2) [L639] return 0; [L639] return 0; VAL [\result=0, malloc(37U)={39:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 11 error locations. UNSAFE Result, 1.1s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 26 SDslu, 37 SDs, 0 SdLazy, 38 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 443 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 0.1.24-91b1670 [2018-11-28 22:48:59,901 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:48:59,904 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:48:59,920 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:48:59,921 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:48:59,922 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:48:59,923 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:48:59,925 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:48:59,927 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:48:59,928 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:48:59,929 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:48:59,929 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:48:59,930 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:48:59,931 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:48:59,932 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:48:59,935 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:48:59,937 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:48:59,940 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:48:59,946 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:48:59,950 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:48:59,951 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:48:59,952 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:48:59,959 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:48:59,959 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:48:59,959 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:48:59,963 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:48:59,965 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:48:59,966 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:48:59,967 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:48:59,968 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:48:59,968 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:48:59,968 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:48:59,969 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:48:59,969 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:48:59,970 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:48:59,970 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:48:59,971 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-11-28 22:48:59,986 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:48:59,986 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:48:59,987 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:48:59,987 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:48:59,987 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:48:59,988 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:48:59,988 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:48:59,988 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:48:59,988 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:48:59,988 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:48:59,989 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:48:59,989 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:48:59,989 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:48:59,989 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:48:59,989 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:48:59,989 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:48:59,990 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:48:59,990 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 22:48:59,990 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 22:48:59,990 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:48:59,990 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:48:59,991 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:48:59,991 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:48:59,991 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:48:59,991 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:48:59,991 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:48:59,991 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:48:59,992 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:48:59,992 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 22:48:59,992 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:48:59,992 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 22:48:59,992 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 -> 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 [2018-11-28 22:49:00,052 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:49:00,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:49:00,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:49:00,076 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:49:00,077 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:49:00,077 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-11-28 22:49:00,144 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d344c3f26/85dc9d6d2eb04f48887aeae1d36ebe94/FLAGc89b60249 [2018-11-28 22:49:00,659 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:49:00,661 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-11-28 22:49:00,680 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d344c3f26/85dc9d6d2eb04f48887aeae1d36ebe94/FLAGc89b60249 [2018-11-28 22:49:00,931 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d344c3f26/85dc9d6d2eb04f48887aeae1d36ebe94 [2018-11-28 22:49:00,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:49:00,937 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:49:00,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:49:00,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:49:00,943 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:49:00,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:49:00" (1/1) ... [2018-11-28 22:49:00,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57c5a119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:49:00, skipping insertion in model container [2018-11-28 22:49:00,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:49:00" (1/1) ... [2018-11-28 22:49:00,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:49:01,005 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:49:01,396 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:49:01,408 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:49:01,475 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:49:01,557 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:49:01,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:49:01 WrapperNode [2018-11-28 22:49:01,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:49:01,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:49:01,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:49:01,559 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:49:01,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:49:01" (1/1) ... [2018-11-28 22:49:01,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:49:01" (1/1) ... [2018-11-28 22:49:01,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:49:01" (1/1) ... [2018-11-28 22:49:01,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:49:01" (1/1) ... [2018-11-28 22:49:01,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:49:01" (1/1) ... [2018-11-28 22:49:01,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:49:01" (1/1) ... [2018-11-28 22:49:01,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:49:01" (1/1) ... [2018-11-28 22:49:01,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:49:01,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:49:01,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:49:01,693 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:49:01,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:49:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:49:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:49:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:49:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:49:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 22:49:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:49:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:49:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:49:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:49:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:49:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:49:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:49:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:49:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:49:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:49:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:49:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:49:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:49:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:49:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:49:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:49:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:49:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:49:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:49:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:49:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:49:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:49:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:49:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:49:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:49:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:49:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:49:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:49:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:49:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:49:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:49:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:49:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:49:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:49:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:49:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:49:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:49:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:49:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:49:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:49:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:49:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:49:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:49:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:49:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:49:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:49:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:49:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:49:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:49:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:49:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:49:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:49:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:49:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:49:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:49:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:49:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:49:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:49:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:49:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:49:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:49:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:49:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:49:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:49:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 22:49:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:49:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:49:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:49:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:49:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:49:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:49:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:49:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:49:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:49:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:49:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:49:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:49:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:49:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:49:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:49:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:49:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:49:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:49:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:49:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:49:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:49:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:49:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:49:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:49:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:49:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:49:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:49:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:49:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:49:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:49:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:49:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:49:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:49:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:49:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:49:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:49:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 22:49:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:49:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:49:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 22:49:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 22:49:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 22:49:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-11-28 22:49:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:49:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:49:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:49:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 22:49:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-11-28 22:49:02,434 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:49:02,434 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 22:49:02,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:49:02 BoogieIcfgContainer [2018-11-28 22:49:02,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:49:02,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:49:02,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:49:02,439 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:49:02,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:49:00" (1/3) ... [2018-11-28 22:49:02,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2780f7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:49:02, skipping insertion in model container [2018-11-28 22:49:02,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:49:01" (2/3) ... [2018-11-28 22:49:02,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2780f7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:49:02, skipping insertion in model container [2018-11-28 22:49:02,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:49:02" (3/3) ... [2018-11-28 22:49:02,443 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1_false-valid-memtrack_true-termination.i [2018-11-28 22:49:02,455 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:49:02,464 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-11-28 22:49:02,482 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-11-28 22:49:02,509 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:49:02,510 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:49:02,510 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:49:02,511 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:49:02,512 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:49:02,512 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:49:02,512 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:49:02,513 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:49:02,513 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:49:02,530 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-28 22:49:02,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 22:49:02,542 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:49:02,543 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:49:02,545 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2018-11-28 22:49:02,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:49:02,552 INFO L82 PathProgramCache]: Analyzing trace with hash -664733145, now seen corresponding path program 1 times [2018-11-28 22:49:02,556 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:49:02,557 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 [2018-11-28 22:49:02,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:49:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:49:02,634 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:49:02,680 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-28 22:49:02,702 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 12 treesize of output 11 [2018-11-28 22:49:02,702 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:49:02,749 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:49:02,767 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 22:49:02,768 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2018-11-28 22:49:02,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:49:02,811 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4 --incremental --print-success --lang smt --rewrite-divk (2)] Exception during sending of exit command (exit): Broken pipe [2018-11-28 22:49:02,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:49:02,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:49:02,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:49:02,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:49:02,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:49:02,839 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2018-11-28 22:49:03,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:49:03,006 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-11-28 22:49:03,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:49:03,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 22:49:03,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:49:03,017 INFO L225 Difference]: With dead ends: 24 [2018-11-28 22:49:03,017 INFO L226 Difference]: Without dead ends: 21 [2018-11-28 22:49:03,019 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:49:03,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-28 22:49:03,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-28 22:49:03,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-28 22:49:03,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-11-28 22:49:03,053 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2018-11-28 22:49:03,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:49:03,053 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-11-28 22:49:03,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:49:03,054 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-11-28 22:49:03,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 22:49:03,054 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:49:03,054 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:49:03,055 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2018-11-28 22:49:03,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:49:03,055 INFO L82 PathProgramCache]: Analyzing trace with hash -664733144, now seen corresponding path program 1 times [2018-11-28 22:49:03,055 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:49:03,056 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 [2018-11-28 22:49:03,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:49:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:49:03,111 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:49:03,152 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-28 22:49:03,164 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:49:03,165 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-11-28 22:49:03,166 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:49:03,258 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:49:03,326 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 5 treesize of output 1 [2018-11-28 22:49:03,326 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 22:49:03,338 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 22:49:03,339 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2018-11-28 22:49:03,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:49:03,360 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 22:49:03,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:49:03,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:49:03,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:49:03,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:49:03,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:49:03,364 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 3 states. [2018-11-28 22:49:03,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:49:03,434 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-11-28 22:49:03,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:49:03,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 22:49:03,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:49:03,436 INFO L225 Difference]: With dead ends: 16 [2018-11-28 22:49:03,436 INFO L226 Difference]: Without dead ends: 16 [2018-11-28 22:49:03,437 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:49:03,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-28 22:49:03,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-28 22:49:03,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 22:49:03,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-28 22:49:03,441 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2018-11-28 22:49:03,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:49:03,441 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-28 22:49:03,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:49:03,442 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-28 22:49:03,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 22:49:03,442 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:49:03,442 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:49:03,443 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2018-11-28 22:49:03,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:49:03,443 INFO L82 PathProgramCache]: Analyzing trace with hash -828868173, now seen corresponding path program 1 times [2018-11-28 22:49:03,444 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:49:03,444 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 [2018-11-28 22:49:03,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:49:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:49:03,517 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:49:03,556 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-28 22:49:03,571 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 10 treesize of output 9 [2018-11-28 22:49:03,571 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:49:03,597 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:49:03,626 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:49:03,627 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-28 22:49:03,694 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-28 22:49:03,709 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 17 treesize of output 5 [2018-11-28 22:49:03,710 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:49:03,736 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:49:03,741 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:49:03,741 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-11-28 22:49:03,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:49:03,757 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 22:49:03,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:49:03,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:49:03,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 22:49:03,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 22:49:03,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 22:49:03,760 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 4 states. [2018-11-28 22:49:03,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:49:03,984 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2018-11-28 22:49:03,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 22:49:03,985 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-11-28 22:49:03,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:49:03,986 INFO L225 Difference]: With dead ends: 20 [2018-11-28 22:49:03,986 INFO L226 Difference]: Without dead ends: 20 [2018-11-28 22:49:03,987 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:49:03,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-28 22:49:03,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2018-11-28 22:49:03,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 22:49:03,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-11-28 22:49:03,991 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-11-28 22:49:03,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:49:03,991 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-11-28 22:49:03,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 22:49:03,992 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-11-28 22:49:03,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 22:49:03,992 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:49:03,993 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:49:03,993 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2018-11-28 22:49:03,993 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:49:03,993 INFO L82 PathProgramCache]: Analyzing trace with hash -681104813, now seen corresponding path program 1 times [2018-11-28 22:49:03,994 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:49:03,994 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 22:49:04,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:49:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:49:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:49:04,212 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 22:49:04,212 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 22:49:04,246 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 22:49:04,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:49:04 BoogieIcfgContainer [2018-11-28 22:49:04,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:49:04,264 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:49:04,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:49:04,264 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:49:04,265 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:49:02" (3/4) ... [2018-11-28 22:49:04,269 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 22:49:04,269 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:49:04,270 INFO L168 Benchmark]: Toolchain (without parser) took 3334.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -57.7 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. [2018-11-28 22:49:04,272 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:49:04,273 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.73 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 924.5 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-28 22:49:04,273 INFO L168 Benchmark]: Boogie Preprocessor took 133.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 924.5 MB in the beginning and 1.1 GB in the end (delta: -207.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-28 22:49:04,276 INFO L168 Benchmark]: RCFGBuilder took 742.14 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-28 22:49:04,276 INFO L168 Benchmark]: TraceAbstraction took 1827.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 11.5 GB. [2018-11-28 22:49:04,277 INFO L168 Benchmark]: Witness Printer took 5.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:49:04,281 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 620.73 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 924.5 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 133.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 924.5 MB in the beginning and 1.1 GB in the end (delta: -207.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 742.14 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1827.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.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: 620]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 620. Possible FailurePath: [L622-L629] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L630] data.p0 = malloc(37U) VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L631] COND FALSE !(__VERIFIER_nondet_int()) [L634] data.str.p2 = 30 VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L636] EXPR data.str.p2 VAL [data={-2147483647:0}, data.str.p2=30, malloc(37U)={-2147483648:0}] [L636] COND FALSE !(25 > data.str.p2) [L639] return 0; [L639] return 0; VAL [\result=0, malloc(37U)={-2147483648:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 11 error locations. UNSAFE Result, 1.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 24 SDslu, 35 SDs, 0 SdLazy, 38 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 492 SizeOfPredicates, 5 NumberOfNonLiveVariables, 125 ConjunctsInSsa, 9 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...