./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/memsafety/test-0158_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/memsafety/test-0158_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 9b3e50b8f852fe8799cb6ad900b216b16bf216ae ....................................................................................................................................................................................................................................................................................................................................................................................................................... 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/memsafety/test-0158_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 9b3e50b8f852fe8799cb6ad900b216b16bf216ae ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:45:46,072 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:45:46,074 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:45:46,089 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:45:46,089 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:45:46,090 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:45:46,092 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:45:46,094 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:45:46,096 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:45:46,096 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:45:46,097 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:45:46,098 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:45:46,099 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:45:46,100 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:45:46,101 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:45:46,102 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:45:46,103 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:45:46,105 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:45:46,107 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:45:46,109 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:45:46,110 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:45:46,111 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:45:46,114 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:45:46,115 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:45:46,115 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:45:46,116 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:45:46,117 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:45:46,118 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:45:46,119 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:45:46,120 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:45:46,121 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:45:46,121 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:45:46,122 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:45:46,122 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:45:46,123 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:45:46,124 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:45:46,124 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 22:45:46,153 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:45:46,154 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:45:46,154 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:45:46,155 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:45:46,160 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:45:46,161 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:45:46,161 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:45:46,161 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:45:46,161 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:45:46,161 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:45:46,162 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:45:46,162 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:45:46,162 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:45:46,162 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:45:46,162 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:45:46,162 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:45:46,164 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:45:46,164 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:45:46,164 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:45:46,164 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:45:46,164 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:45:46,165 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:45:46,165 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:45:46,165 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:45:46,165 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:45:46,165 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:45:46,165 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 22:45:46,166 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:45:46,166 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 -> 9b3e50b8f852fe8799cb6ad900b216b16bf216ae [2018-11-28 22:45:46,206 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:45:46,224 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:45:46,229 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:45:46,230 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:45:46,231 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:45:46,233 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-11-28 22:45:46,308 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a0ca2ea3/13cfd028e9aa4e48b0aea1578ce6b880/FLAG230fb304b [2018-11-28 22:45:46,807 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:45:46,810 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-11-28 22:45:46,822 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a0ca2ea3/13cfd028e9aa4e48b0aea1578ce6b880/FLAG230fb304b [2018-11-28 22:45:47,124 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a0ca2ea3/13cfd028e9aa4e48b0aea1578ce6b880 [2018-11-28 22:45:47,128 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:45:47,130 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:45:47,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:45:47,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:45:47,137 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:45:47,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:45:47" (1/1) ... [2018-11-28 22:45:47,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11439c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:47, skipping insertion in model container [2018-11-28 22:45:47,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:45:47" (1/1) ... [2018-11-28 22:45:47,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:45:47,205 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:45:47,501 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:45:47,509 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:45:47,574 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:45:47,637 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:45:47,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:47 WrapperNode [2018-11-28 22:45:47,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:45:47,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:45:47,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:45:47,640 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:45:47,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:47" (1/1) ... [2018-11-28 22:45:47,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:47" (1/1) ... [2018-11-28 22:45:47,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:47" (1/1) ... [2018-11-28 22:45:47,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:47" (1/1) ... [2018-11-28 22:45:47,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:47" (1/1) ... [2018-11-28 22:45:47,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:47" (1/1) ... [2018-11-28 22:45:47,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:47" (1/1) ... [2018-11-28 22:45:47,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:45:47,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:45:47,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:45:47,794 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:45:47,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:47" (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 22:45:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:45:47,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:45:47,850 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:45:47,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 22:45:47,850 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:45:47,850 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:45:47,850 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:45:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:45:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:45:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:45:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:45:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:45:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:45:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:45:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:45:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:45:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:45:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:45:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:45:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:45:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:45:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:45:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:45:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:45:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:45:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:45:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:45:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:45:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:45:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:45:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:45:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:45:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:45:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:45:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:45:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:45:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:45:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:45:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:45:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:45:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:45:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:45:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:45:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:45:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:45:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:45:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:45:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:45:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:45:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:45:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:45:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:45:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:45:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:45:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:45:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:45:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:45:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:45:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:45:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:45:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:45:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:45:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:45:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:45:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:45:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:45:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:45:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:45:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 22:45:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:45:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:45:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:45:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:45:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:45:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:45:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:45:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:45:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:45:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:45:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:45:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:45:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:45:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:45:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:45:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:45:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:45:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:45:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:45:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:45:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:45:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:45:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:45:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:45:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:45:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:45:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:45:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:45:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:45:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:45:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:45:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:45:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:45:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:45:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:45:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:45:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:45:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:45:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 22:45:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 22:45:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:45:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:45:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:45:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 22:45:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 22:45:48,416 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:45:48,416 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 22:45:48,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:48 BoogieIcfgContainer [2018-11-28 22:45:48,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:45:48,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:45:48,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:45:48,422 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:45:48,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:45:47" (1/3) ... [2018-11-28 22:45:48,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a3b72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:45:48, skipping insertion in model container [2018-11-28 22:45:48,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:47" (2/3) ... [2018-11-28 22:45:48,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a3b72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:45:48, skipping insertion in model container [2018-11-28 22:45:48,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:48" (3/3) ... [2018-11-28 22:45:48,426 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-11-28 22:45:48,437 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:45:48,447 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-11-28 22:45:48,466 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-11-28 22:45:48,495 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:45:48,496 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:45:48,497 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:45:48,497 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:45:48,497 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:45:48,498 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:45:48,498 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:45:48,498 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:45:48,498 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:45:48,515 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-28 22:45:48,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 22:45:48,526 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:48,527 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:48,530 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 22:45:48,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:48,537 INFO L82 PathProgramCache]: Analyzing trace with hash 539516245, now seen corresponding path program 1 times [2018-11-28 22:45:48,539 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:45:48,540 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:45:48,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:48,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:48,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:48,711 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 22:45:48,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:48,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:45:48,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:45:48,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:45:48,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:45:48,732 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-11-28 22:45:48,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:48,924 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-11-28 22:45:48,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:45:48,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 22:45:48,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:48,936 INFO L225 Difference]: With dead ends: 18 [2018-11-28 22:45:48,937 INFO L226 Difference]: Without dead ends: 15 [2018-11-28 22:45:48,939 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 22:45:48,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-28 22:45:48,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 22:45:48,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 22:45:48,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-11-28 22:45:48,978 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2018-11-28 22:45:48,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:48,979 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-11-28 22:45:48,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:45:48,979 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-11-28 22:45:48,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 22:45:48,979 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:48,980 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:48,980 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 22:45:48,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:48,980 INFO L82 PathProgramCache]: Analyzing trace with hash 539516246, now seen corresponding path program 1 times [2018-11-28 22:45:48,980 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:45:48,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:45:48,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:48,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:48,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:49,122 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 22:45:49,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:49,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:45:49,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:45:49,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:45:49,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:45:49,125 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 3 states. [2018-11-28 22:45:49,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:49,194 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-11-28 22:45:49,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:45:49,194 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 22:45:49,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:49,195 INFO L225 Difference]: With dead ends: 12 [2018-11-28 22:45:49,195 INFO L226 Difference]: Without dead ends: 12 [2018-11-28 22:45:49,196 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 22:45:49,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-28 22:45:49,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-28 22:45:49,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 22:45:49,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-11-28 22:45:49,198 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2018-11-28 22:45:49,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:49,199 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-11-28 22:45:49,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:45:49,199 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-11-28 22:45:49,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 22:45:49,200 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:49,200 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:49,200 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION]=== [2018-11-28 22:45:49,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:49,200 INFO L82 PathProgramCache]: Analyzing trace with hash -279678759, now seen corresponding path program 1 times [2018-11-28 22:45:49,201 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:45:49,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:45:49,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:49,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:49,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:45:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:45:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:45:49,300 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 22:45:49,313 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 22:45:49,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:45:49 BoogieIcfgContainer [2018-11-28 22:45:49,323 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:45:49,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:45:49,324 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:45:49,324 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:45:49,325 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:48" (3/4) ... [2018-11-28 22:45:49,328 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 22:45:49,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:45:49,329 INFO L168 Benchmark]: Toolchain (without parser) took 2200.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 954.0 MB in the beginning and 1.0 GB in the end (delta: -73.6 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:49,331 INFO L168 Benchmark]: CDTParser took 0.19 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 22:45:49,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 508.23 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 931.2 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:49,332 INFO L168 Benchmark]: Boogie Preprocessor took 153.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:49,334 INFO L168 Benchmark]: RCFGBuilder took 622.95 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 22:45:49,334 INFO L168 Benchmark]: TraceAbstraction took 905.76 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:49,335 INFO L168 Benchmark]: Witness Printer took 4.91 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 22:45:49,340 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 508.23 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 931.2 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 153.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 622.95 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 905.76 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.91 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: 619]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 619. Possible FailurePath: [L621-L628] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L629] data.p0 = malloc(37U) VAL [data={39:0}, malloc(37U)={40:0}] [L630] data.str.p2 = &data VAL [data={39:0}, malloc(37U)={40:0}] [L631] data.str.c[1] = sizeof data.str.p1 VAL [data={39:0}, malloc(37U)={40:0}] [L632] return 0; [L632] return 0; VAL [\result=0, malloc(37U)={40:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 7 error locations. UNSAFE Result, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 9 SDslu, 12 SDs, 0 SdLazy, 16 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 22:45:51,777 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:45:51,780 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:45:51,792 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:45:51,792 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:45:51,793 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:45:51,795 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:45:51,796 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:45:51,798 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:45:51,799 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:45:51,800 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:45:51,800 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:45:51,801 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:45:51,802 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:45:51,803 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:45:51,804 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:45:51,804 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:45:51,806 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:45:51,809 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:45:51,810 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:45:51,811 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:45:51,812 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:45:51,815 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:45:51,815 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:45:51,816 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:45:51,817 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:45:51,818 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:45:51,818 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:45:51,821 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:45:51,822 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:45:51,823 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:45:51,823 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:45:51,823 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:45:51,824 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:45:51,828 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:45:51,829 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:45:51,829 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-11-28 22:45:51,852 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:45:51,853 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:45:51,854 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:45:51,854 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:45:51,854 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:45:51,855 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:45:51,855 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:45:51,855 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:45:51,855 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:45:51,855 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:45:51,856 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:45:51,856 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:45:51,856 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:45:51,856 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:45:51,856 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:45:51,856 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:45:51,857 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:45:51,857 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 22:45:51,857 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 22:45:51,857 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:45:51,857 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:45:51,857 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:45:51,858 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:45:51,858 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:45:51,858 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:45:51,858 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:45:51,858 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:45:51,858 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:45:51,859 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 22:45:51,859 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:45:51,859 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 22:45:51,859 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 -> 9b3e50b8f852fe8799cb6ad900b216b16bf216ae [2018-11-28 22:45:51,897 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:45:51,916 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:45:51,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:45:51,924 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:45:51,924 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:45:51,925 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-11-28 22:45:51,997 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a34dc1d/d89d987d774541a0af04b56b22304109/FLAG12430b5fa [2018-11-28 22:45:52,505 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:45:52,506 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-11-28 22:45:52,519 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a34dc1d/d89d987d774541a0af04b56b22304109/FLAG12430b5fa [2018-11-28 22:45:52,839 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a34dc1d/d89d987d774541a0af04b56b22304109 [2018-11-28 22:45:52,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:45:52,845 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:45:52,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:45:52,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:45:52,852 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:45:52,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:45:52" (1/1) ... [2018-11-28 22:45:52,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@184c641f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:52, skipping insertion in model container [2018-11-28 22:45:52,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:45:52" (1/1) ... [2018-11-28 22:45:52,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:45:52,909 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:45:53,328 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:45:53,337 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:45:53,378 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:45:53,455 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:45:53,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:53 WrapperNode [2018-11-28 22:45:53,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:45:53,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:45:53,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:45:53,457 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:45:53,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:53" (1/1) ... [2018-11-28 22:45:53,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:53" (1/1) ... [2018-11-28 22:45:53,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:53" (1/1) ... [2018-11-28 22:45:53,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:53" (1/1) ... [2018-11-28 22:45:53,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:53" (1/1) ... [2018-11-28 22:45:53,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:53" (1/1) ... [2018-11-28 22:45:53,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:53" (1/1) ... [2018-11-28 22:45:53,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:45:53,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:45:53,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:45:53,614 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:45:53,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:53" (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 22:45:53,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:45:53,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:45:53,677 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:45:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 22:45:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:45:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:45:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:45:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:45:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:45:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:45:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:45:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:45:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:45:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:45:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:45:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:45:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:45:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:45:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:45:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:45:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:45:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:45:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:45:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:45:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:45:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:45:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:45:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:45:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:45:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:45:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:45:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:45:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:45:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:45:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:45:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:45:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:45:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:45:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:45:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:45:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:45:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:45:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:45:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:45:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:45:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:45:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:45:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:45:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:45:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:45:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:45:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:45:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:45:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:45:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:45:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:45:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:45:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:45:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:45:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:45:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:45:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:45:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:45:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:45:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:45:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:45:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:45:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:45:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 22:45:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:45:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:45:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:45:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:45:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:45:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:45:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:45:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:45:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:45:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:45:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:45:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:45:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:45:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:45:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:45:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:45:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:45:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:45:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:45:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:45:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:45:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:45:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:45:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:45:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:45:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:45:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:45:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:45:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:45:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:45:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:45:53,691 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:45:53,691 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:45:53,691 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:45:53,691 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:45:53,691 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:45:53,691 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:45:53,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:45:53,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 22:45:53,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-11-28 22:45:53,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:45:53,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:45:53,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:45:53,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-11-28 22:45:53,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 22:45:54,277 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:45:54,278 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 22:45:54,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:54 BoogieIcfgContainer [2018-11-28 22:45:54,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:45:54,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:45:54,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:45:54,283 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:45:54,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:45:52" (1/3) ... [2018-11-28 22:45:54,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5556e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:45:54, skipping insertion in model container [2018-11-28 22:45:54,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:53" (2/3) ... [2018-11-28 22:45:54,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5556e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:45:54, skipping insertion in model container [2018-11-28 22:45:54,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:54" (3/3) ... [2018-11-28 22:45:54,287 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-11-28 22:45:54,297 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:45:54,305 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-11-28 22:45:54,324 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-11-28 22:45:54,356 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:45:54,357 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:45:54,357 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:45:54,358 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:45:54,359 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:45:54,359 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:45:54,360 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:45:54,360 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:45:54,360 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:45:54,379 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-28 22:45:54,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 22:45:54,389 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:54,390 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:54,393 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-11-28 22:45:54,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:54,401 INFO L82 PathProgramCache]: Analyzing trace with hash 539516245, now seen corresponding path program 1 times [2018-11-28 22:45:54,407 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:45:54,408 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 22:45:54,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:54,491 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:45:54,614 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:54,620 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-28 22:45:54,637 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-28 22:45:54,639 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:54,659 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:54,713 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 22:45:54,715 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2018-11-28 22:45:54,759 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 22:45:54,759 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 22:45:54,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:54,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:45:54,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:45:54,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:45:54,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:45:54,784 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-11-28 22:45:54,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:54,915 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-11-28 22:45:54,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:45:54,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 22:45:54,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:54,926 INFO L225 Difference]: With dead ends: 18 [2018-11-28 22:45:54,926 INFO L226 Difference]: Without dead ends: 15 [2018-11-28 22:45:54,928 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 22:45:54,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-28 22:45:54,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 22:45:54,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 22:45:54,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-11-28 22:45:54,962 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2018-11-28 22:45:54,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:54,962 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-11-28 22:45:54,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:45:54,962 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-11-28 22:45:54,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 22:45:54,963 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:54,963 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:54,964 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-11-28 22:45:54,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:54,964 INFO L82 PathProgramCache]: Analyzing trace with hash 539516246, now seen corresponding path program 1 times [2018-11-28 22:45:54,965 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:45:54,965 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 22:45:54,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:45:55,031 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 22:45:55,179 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-28 22:45:55,192 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 22:45:55,240 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 22:45:55,242 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 22:45:55,243 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:55,279 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 22:45:55,414 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 22:45:55,414 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 22:45:55,444 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 22:45:55,444 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2018-11-28 22:45:55,460 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 22:45:55,460 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 22:45:55,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:45:55,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:45:55,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:45:55,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:45:55,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:45:55,466 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 3 states. [2018-11-28 22:45:55,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:45:55,509 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-11-28 22:45:55,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:45:55,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 22:45:55,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:45:55,512 INFO L225 Difference]: With dead ends: 12 [2018-11-28 22:45:55,512 INFO L226 Difference]: Without dead ends: 12 [2018-11-28 22:45:55,513 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 22:45:55,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-28 22:45:55,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-28 22:45:55,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 22:45:55,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-11-28 22:45:55,515 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2018-11-28 22:45:55,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:45:55,516 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-11-28 22:45:55,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:45:55,516 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-11-28 22:45:55,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 22:45:55,516 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:45:55,517 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:45:55,517 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-11-28 22:45:55,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:45:55,517 INFO L82 PathProgramCache]: Analyzing trace with hash -279678759, now seen corresponding path program 1 times [2018-11-28 22:45:55,518 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 22:45:55,518 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 22:45:55,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:45:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 22:45:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [MP cvc4 --incremental --print-success --lang smt --rewrite-divk (4)] Exception during sending of exit command (exit): Broken pipe [2018-11-28 22:45:55,719 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 22:45:55,743 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 22:45:55,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:45:55 BoogieIcfgContainer [2018-11-28 22:45:55,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:45:55,758 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:45:55,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:45:55,758 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:45:55,759 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:54" (3/4) ... [2018-11-28 22:45:55,766 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 22:45:55,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:45:55,769 INFO L168 Benchmark]: Toolchain (without parser) took 2925.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.4 MB). Free memory was 951.4 MB in the beginning and 953.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 71.3 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:55,772 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:45:55,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 609.77 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 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 22:45:55,781 INFO L168 Benchmark]: Boogie Preprocessor took 157.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.4 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -130.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:55,782 INFO L168 Benchmark]: RCFGBuilder took 664.33 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: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:55,783 INFO L168 Benchmark]: TraceAbstraction took 1478.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 953.5 MB in the end (delta: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 11.5 GB. [2018-11-28 22:45:55,787 INFO L168 Benchmark]: Witness Printer took 10.19 ms. Allocated memory is still 1.1 GB. Free memory is still 953.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:45:55,792 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 609.77 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 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 157.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.4 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -130.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 664.33 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: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1478.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 953.5 MB in the end (delta: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 11.5 GB. * Witness Printer took 10.19 ms. Allocated memory is still 1.1 GB. Free memory is still 953.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 619]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 619. Possible FailurePath: [L621-L628] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L629] data.p0 = malloc(37U) VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L630] data.str.p2 = &data VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L631] data.str.c[1] = sizeof data.str.p1 VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L632] return 0; [L632] return 0; VAL [\result=0, malloc(37U)={-2147483648:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 7 error locations. UNSAFE Result, 1.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 9 SDslu, 12 SDs, 0 SdLazy, 16 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 2 QuantifiedInterpolants, 288 SizeOfPredicates, 2 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...