./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 64bit --witnessprinter.graph.data.programhash a2aa33a4d599a5d6897f5617ce765d9180019e00 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 14:16:49,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 14:16:49,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 14:16:49,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 14:16:49,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 14:16:49,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 14:16:49,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 14:16:49,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 14:16:49,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 14:16:49,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 14:16:49,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 14:16:49,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 14:16:49,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 14:16:49,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 14:16:49,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 14:16:49,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 14:16:49,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 14:16:49,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 14:16:49,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 14:16:49,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 14:16:49,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 14:16:49,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 14:16:49,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 14:16:49,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 14:16:49,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 14:16:49,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 14:16:49,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 14:16:49,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 14:16:49,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 14:16:49,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 14:16:49,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 14:16:49,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 14:16:49,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 14:16:49,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 14:16:49,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 14:16:49,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 14:16:49,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 14:16:49,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 14:16:49,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 14:16:49,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 14:16:49,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 14:16:49,921 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 14:16:49,947 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 14:16:49,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 14:16:49,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 14:16:49,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 14:16:49,949 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 14:16:49,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 14:16:49,950 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 14:16:49,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 14:16:49,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 14:16:49,950 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 14:16:49,951 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 14:16:49,951 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 14:16:49,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 14:16:49,951 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 14:16:49,951 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 14:16:49,952 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 14:16:49,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 14:16:49,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 14:16:49,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 14:16:49,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 14:16:49,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 14:16:49,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 14:16:49,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 14:16:49,953 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 14:16:49,954 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 14:16:49,954 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 14:16:49,954 INFO L138 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2aa33a4d599a5d6897f5617ce765d9180019e00 [2019-11-21 14:16:50,252 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 14:16:50,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 14:16:50,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 14:16:50,278 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 14:16:50,278 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 14:16:50,279 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-21 14:16:50,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb4840e40/e25f377c029e478ea57741c03bef14af/FLAG3e552391b [2019-11-21 14:16:50,895 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 14:16:50,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-21 14:16:50,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb4840e40/e25f377c029e478ea57741c03bef14af/FLAG3e552391b [2019-11-21 14:16:51,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb4840e40/e25f377c029e478ea57741c03bef14af [2019-11-21 14:16:51,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 14:16:51,160 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 14:16:51,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 14:16:51,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 14:16:51,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 14:16:51,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:16:51" (1/1) ... [2019-11-21 14:16:51,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f004712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:16:51, skipping insertion in model container [2019-11-21 14:16:51,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:16:51" (1/1) ... [2019-11-21 14:16:51,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 14:16:51,225 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 14:16:51,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 14:16:51,742 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 14:16:51,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 14:16:51,921 INFO L205 MainTranslator]: Completed translation [2019-11-21 14:16:51,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:16:51 WrapperNode [2019-11-21 14:16:51,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 14:16:51,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 14:16:51,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 14:16:51,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 14:16:51,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:16:51" (1/1) ... [2019-11-21 14:16:51,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:16:51" (1/1) ... [2019-11-21 14:16:51,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:16:51" (1/1) ... [2019-11-21 14:16:51,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:16:51" (1/1) ... [2019-11-21 14:16:52,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:16:51" (1/1) ... [2019-11-21 14:16:52,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:16:51" (1/1) ... [2019-11-21 14:16:52,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:16:51" (1/1) ... [2019-11-21 14:16:52,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 14:16:52,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 14:16:52,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 14:16:52,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 14:16:52,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:16:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 14:16:52,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 14:16:52,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 14:16:52,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 14:16:52,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 14:16:52,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 14:16:52,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 14:16:52,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 14:16:52,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 14:16:52,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 14:16:52,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 14:16:52,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 14:16:52,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 14:16:52,154 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 14:16:52,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 14:16:52,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 14:16:52,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 14:16:52,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 14:16:52,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 14:16:52,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 14:16:52,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 14:16:52,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 14:16:52,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 14:16:52,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 14:16:52,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 14:16:52,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 14:16:52,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 14:16:52,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 14:16:52,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 14:16:52,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 14:16:52,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 14:16:52,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 14:16:52,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 14:16:52,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 14:16:52,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 14:16:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 14:16:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 14:16:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 14:16:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 14:16:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 14:16:52,163 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 14:16:52,163 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 14:16:52,163 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 14:16:52,164 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 14:16:52,164 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 14:16:52,164 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 14:16:52,164 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 14:16:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 14:16:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 14:16:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 14:16:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 14:16:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 14:16:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 14:16:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 14:16:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 14:16:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 14:16:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 14:16:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 14:16:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 14:16:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 14:16:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 14:16:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 14:16:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 14:16:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 14:16:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 14:16:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 14:16:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 14:16:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 14:16:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 14:16:52,171 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 14:16:52,171 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 14:16:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 14:16:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 14:16:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 14:16:52,173 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 14:16:52,173 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 14:16:52,174 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 14:16:52,174 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 14:16:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 14:16:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 14:16:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 14:16:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 14:16:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 14:16:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 14:16:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 14:16:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 14:16:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 14:16:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 14:16:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 14:16:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 14:16:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 14:16:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 14:16:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 14:16:52,179 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 14:16:52,179 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 14:16:52,179 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 14:16:52,179 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 14:16:52,179 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 14:16:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 14:16:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 14:16:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 14:16:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 14:16:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 14:16:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 14:16:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 14:16:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 14:16:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 14:16:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 14:16:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 14:16:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 14:16:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 14:16:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 14:16:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 14:16:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 14:16:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 14:16:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 14:16:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 14:16:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 14:16:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 14:16:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 14:16:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 14:16:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 14:16:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 14:16:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 14:16:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 14:16:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 14:16:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 14:16:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 14:16:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 14:16:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 14:16:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 14:16:52,188 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 14:16:52,188 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 14:16:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 14:16:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 14:16:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 14:16:52,193 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 14:16:52,193 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 14:16:52,193 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 14:16:52,193 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 14:16:52,194 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 14:16:52,194 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 14:16:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 14:16:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 14:16:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 14:16:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 14:16:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 14:16:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 14:16:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 14:16:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 14:16:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 14:16:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 14:16:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 14:16:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 14:16:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 14:16:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 14:16:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 14:16:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 14:16:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 14:16:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 14:16:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 14:16:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 14:16:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 14:16:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 14:16:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 14:16:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 14:16:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 14:16:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 14:16:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 14:16:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 14:16:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 14:16:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 14:16:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 14:16:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 14:16:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 14:16:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 14:16:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 14:16:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 14:16:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 14:16:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 14:16:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 14:16:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 14:16:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 14:16:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 14:16:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 14:16:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 14:16:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 14:16:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 14:16:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 14:16:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 14:16:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 14:16:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 14:16:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 14:16:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 14:16:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 14:16:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 14:16:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 14:16:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 14:16:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 14:16:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 14:16:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 14:16:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 14:16:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 14:16:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 14:16:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 14:16:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 14:16:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 14:16:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 14:16:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 14:16:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 14:16:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 14:16:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 14:16:52,935 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 14:16:53,416 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 14:16:53,816 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 14:16:53,817 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 14:16:53,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:16:53 BoogieIcfgContainer [2019-11-21 14:16:53,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 14:16:53,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 14:16:53,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 14:16:53,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 14:16:53,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:16:51" (1/3) ... [2019-11-21 14:16:53,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529d7087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:16:53, skipping insertion in model container [2019-11-21 14:16:53,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:16:51" (2/3) ... [2019-11-21 14:16:53,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529d7087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:16:53, skipping insertion in model container [2019-11-21 14:16:53,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:16:53" (3/3) ... [2019-11-21 14:16:53,829 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-1.i [2019-11-21 14:16:53,840 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 14:16:53,849 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-21 14:16:53,861 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-21 14:16:53,884 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 14:16:53,884 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 14:16:53,885 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 14:16:53,885 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 14:16:53,885 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 14:16:53,886 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 14:16:53,886 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 14:16:53,886 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 14:16:53,905 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2019-11-21 14:16:53,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 14:16:53,916 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:16:53,917 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:16:53,918 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:16:53,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:16:53,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1653423738, now seen corresponding path program 1 times [2019-11-21 14:16:53,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:16:53,942 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [955029925] [2019-11-21 14:16:53,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:16:54,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:16:54,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:16:54,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:16:54,474 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:16:54,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:16:54,683 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [955029925] [2019-11-21 14:16:54,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:16:54,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 14:16:54,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014890205] [2019-11-21 14:16:54,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:16:54,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:16:54,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:16:54,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:16:54,729 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 5 states. [2019-11-21 14:16:54,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:16:54,815 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2019-11-21 14:16:54,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:16:54,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 14:16:54,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:16:54,836 INFO L225 Difference]: With dead ends: 42 [2019-11-21 14:16:54,836 INFO L226 Difference]: Without dead ends: 39 [2019-11-21 14:16:54,838 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:16:54,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-21 14:16:54,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2019-11-21 14:16:54,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-21 14:16:54,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2019-11-21 14:16:54,945 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 16 [2019-11-21 14:16:54,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:16:54,946 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2019-11-21 14:16:54,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:16:54,947 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2019-11-21 14:16:54,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 14:16:54,950 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:16:54,950 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:16:55,156 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:55,157 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:16:55,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:16:55,158 INFO L82 PathProgramCache]: Analyzing trace with hash -898733223, now seen corresponding path program 1 times [2019-11-21 14:16:55,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:16:55,162 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [494136370] [2019-11-21 14:16:55,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:16:55,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 14:16:55,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:16:55,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:16:55,565 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:16:55,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:16:55,652 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [494136370] [2019-11-21 14:16:55,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:16:55,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 14:16:55,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472211518] [2019-11-21 14:16:55,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 14:16:55,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:16:55,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 14:16:55,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 14:16:55,656 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 3 states. [2019-11-21 14:16:55,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:16:55,723 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2019-11-21 14:16:55,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 14:16:55,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-21 14:16:55,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:16:55,725 INFO L225 Difference]: With dead ends: 40 [2019-11-21 14:16:55,725 INFO L226 Difference]: Without dead ends: 37 [2019-11-21 14:16:55,726 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 14:16:55,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-21 14:16:55,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2019-11-21 14:16:55,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-21 14:16:55,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-21 14:16:55,737 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 16 [2019-11-21 14:16:55,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:16:55,738 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-21 14:16:55,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 14:16:55,738 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-21 14:16:55,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 14:16:55,739 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:16:55,739 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:16:55,947 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:55,947 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:16:55,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:16:55,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1369801691, now seen corresponding path program 1 times [2019-11-21 14:16:55,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:16:55,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1982442967] [2019-11-21 14:16:55,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:16:56,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:16:56,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:16:56,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:16:56,234 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:16:56,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:16:56,279 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1982442967] [2019-11-21 14:16:56,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:16:56,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 14:16:56,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968972321] [2019-11-21 14:16:56,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:16:56,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:16:56,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:16:56,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:16:56,282 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 5 states. [2019-11-21 14:16:56,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:16:56,302 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-11-21 14:16:56,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:16:56,304 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-21 14:16:56,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:16:56,305 INFO L225 Difference]: With dead ends: 24 [2019-11-21 14:16:56,306 INFO L226 Difference]: Without dead ends: 24 [2019-11-21 14:16:56,306 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:16:56,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-21 14:16:56,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-21 14:16:56,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-21 14:16:56,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2019-11-21 14:16:56,315 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 20 [2019-11-21 14:16:56,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:16:56,316 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2019-11-21 14:16:56,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:16:56,316 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-11-21 14:16:56,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-21 14:16:56,317 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:16:56,317 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:16:56,520 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:56,522 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:16:56,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:16:56,523 INFO L82 PathProgramCache]: Analyzing trace with hash -485820167, now seen corresponding path program 1 times [2019-11-21 14:16:56,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:16:56,525 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1374439231] [2019-11-21 14:16:56,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:16:56,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 14:16:56,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:16:56,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:16:56,907 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:16:57,004 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:16:57,004 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1374439231] [2019-11-21 14:16:57,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:16:57,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-21 14:16:57,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168805245] [2019-11-21 14:16:57,005 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 14:16:57,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:16:57,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 14:16:57,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 14:16:57,006 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 9 states. [2019-11-21 14:16:57,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:16:57,148 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-11-21 14:16:57,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 14:16:57,149 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2019-11-21 14:16:57,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:16:57,150 INFO L225 Difference]: With dead ends: 23 [2019-11-21 14:16:57,150 INFO L226 Difference]: Without dead ends: 23 [2019-11-21 14:16:57,151 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 14:16:57,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-21 14:16:57,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-21 14:16:57,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-21 14:16:57,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-11-21 14:16:57,155 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2019-11-21 14:16:57,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:16:57,155 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-11-21 14:16:57,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 14:16:57,156 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-11-21 14:16:57,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 14:16:57,157 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:16:57,157 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:16:57,361 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:57,363 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:16:57,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:16:57,363 INFO L82 PathProgramCache]: Analyzing trace with hash 2119444381, now seen corresponding path program 1 times [2019-11-21 14:16:57,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:16:57,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [956860256] [2019-11-21 14:16:57,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:16:57,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:16:57,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:16:57,644 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:16:57,645 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:16:57,650 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:16:57,650 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:16:57,650 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 14:16:57,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:16:57,682 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:16:57,735 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:16:57,736 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [956860256] [2019-11-21 14:16:57,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:16:57,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 14:16:57,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421675473] [2019-11-21 14:16:57,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:16:57,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:16:57,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:16:57,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:16:57,737 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 5 states. [2019-11-21 14:16:57,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:16:57,788 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2019-11-21 14:16:57,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:16:57,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 14:16:57,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:16:57,789 INFO L225 Difference]: With dead ends: 29 [2019-11-21 14:16:57,790 INFO L226 Difference]: Without dead ends: 29 [2019-11-21 14:16:57,791 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:16:57,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-21 14:16:57,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-21 14:16:57,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-21 14:16:57,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-11-21 14:16:57,799 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2019-11-21 14:16:57,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:16:57,799 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-11-21 14:16:57,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:16:57,800 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-11-21 14:16:57,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 14:16:57,801 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:16:57,801 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:16:58,004 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:58,006 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:16:58,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:16:58,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1288019234, now seen corresponding path program 1 times [2019-11-21 14:16:58,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:16:58,008 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1623467029] [2019-11-21 14:16:58,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:16:58,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-21 14:16:58,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:16:58,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:16:58,262 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:16:58,283 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:16:58,284 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1623467029] [2019-11-21 14:16:58,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:16:58,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 14:16:58,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453506683] [2019-11-21 14:16:58,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:16:58,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:16:58,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:16:58,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:16:58,285 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 5 states. [2019-11-21 14:16:58,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:16:58,312 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2019-11-21 14:16:58,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:16:58,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 14:16:58,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:16:58,313 INFO L225 Difference]: With dead ends: 30 [2019-11-21 14:16:58,313 INFO L226 Difference]: Without dead ends: 30 [2019-11-21 14:16:58,314 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:16:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-21 14:16:58,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2019-11-21 14:16:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-21 14:16:58,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-11-21 14:16:58,318 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 22 [2019-11-21 14:16:58,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:16:58,318 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-11-21 14:16:58,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:16:58,318 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-11-21 14:16:58,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 14:16:58,319 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:16:58,319 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:16:58,521 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:58,522 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:16:58,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:16:58,523 INFO L82 PathProgramCache]: Analyzing trace with hash 53712474, now seen corresponding path program 1 times [2019-11-21 14:16:58,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:16:58,524 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [569625821] [2019-11-21 14:16:58,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-21 14:16:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-21 14:16:58,921 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-21 14:16:58,921 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-21 14:16:59,132 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:59,158 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-21 14:16:59,166 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-21 14:16:59,167 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-21 14:16:59,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 02:16:59 BoogieIcfgContainer [2019-11-21 14:16:59,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-21 14:16:59,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-21 14:16:59,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-21 14:16:59,177 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-21 14:16:59,178 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:16:53" (3/4) ... [2019-11-21 14:16:59,182 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-21 14:16:59,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-21 14:16:59,187 INFO L168 Benchmark]: Toolchain (without parser) took 8023.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.2 MB). Free memory was 951.0 MB in the beginning and 987.1 MB in the end (delta: -36.2 MB). Peak memory consumption was 183.0 MB. Max. memory is 11.5 GB. [2019-11-21 14:16:59,187 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 14:16:59,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-21 14:16:59,189 INFO L168 Benchmark]: Boogie Preprocessor took 136.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 14:16:59,190 INFO L168 Benchmark]: RCFGBuilder took 1759.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.9 MB in the end (delta: 110.3 MB). Peak memory consumption was 110.3 MB. Max. memory is 11.5 GB. [2019-11-21 14:16:59,190 INFO L168 Benchmark]: TraceAbstraction took 5356.23 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 996.9 MB in the beginning and 987.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 83.2 MB. Max. memory is 11.5 GB. [2019-11-21 14:16:59,193 INFO L168 Benchmark]: Witness Printer took 5.06 ms. Allocated memory is still 1.2 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 14:16:59,201 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 760.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 136.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1759.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.9 MB in the end (delta: 110.3 MB). Peak memory consumption was 110.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5356.23 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 996.9 MB in the beginning and 987.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 83.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.06 ms. Allocated memory is still 1.2 GB. Free memory is still 987.1 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 765]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 765. Possible FailurePath: [L570] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={412711101:0}] [L766] CALL entry_point() VAL [ldv_global_msg_list={412711101:0}] [L759] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={412711101:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [\old(size)=4, \result={3:0}, ldv_global_msg_list={412711101:0}, malloc(size)={3:0}, size=4] [L759] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={412711101:0}, ldv_malloc(sizeof(int))={3:0}] [L759] int *p = (int *)ldv_malloc(sizeof(int)); [L760] COND TRUE \read(*p) VAL [ldv_global_msg_list={412711101:0}, p={3:0}] [L761] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={412711101:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [\old(size)=4, \result={-1734772548:0}, ldv_global_msg_list={412711101:0}, malloc(size)={-1734772548:0}, size=4] [L761] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={412711101:0}, ldv_malloc(sizeof(int))={-1734772548:0}, p={3:0}] [L761] int *q = (int *)ldv_malloc(sizeof(int)); [L762] free(q) VAL [ldv_global_msg_list={412711101:0}, p={3:0}, q={-1734772548:0}] [L762] free(q) VAL [ldv_global_msg_list={412711101:0}, p={3:0}, q={-1734772548:0}] [L762] free(q) [L766] RET entry_point() VAL [ldv_global_msg_list={412711101:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 46 procedures, 332 locations, 74 error locations. Result: UNSAFE, OverallTime: 5.2s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 158 SDtfs, 35 SDslu, 332 SDs, 0 SdLazy, 153 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 30 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 8634 SizeOfPredicates, 5 NumberOfNonLiveVariables, 453 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 32/32 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...