./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 34ebb1e4 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_test17_2-2.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 902bca7b1502ca5dcb44bb7e7d9bc6d169c57d43 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-34ebb1e [2019-11-21 15:43:49,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 15:43:49,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 15:43:49,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 15:43:49,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 15:43:49,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 15:43:49,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 15:43:49,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 15:43:49,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 15:43:49,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 15:43:49,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 15:43:49,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 15:43:49,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 15:43:49,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 15:43:49,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 15:43:49,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 15:43:49,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 15:43:49,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 15:43:49,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 15:43:49,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 15:43:49,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 15:43:49,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 15:43:49,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 15:43:49,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 15:43:49,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 15:43:49,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 15:43:49,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 15:43:49,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 15:43:49,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 15:43:49,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 15:43:49,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 15:43:49,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 15:43:49,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 15:43:49,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 15:43:49,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 15:43:49,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 15:43:49,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 15:43:49,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 15:43:49,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 15:43:49,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 15:43:49,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 15:43:49,856 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 15:43:49,893 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 15:43:49,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 15:43:49,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 15:43:49,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 15:43:49,898 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 15:43:49,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 15:43:49,898 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 15:43:49,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 15:43:49,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 15:43:49,900 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 15:43:49,901 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 15:43:49,901 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 15:43:49,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 15:43:49,902 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 15:43:49,902 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 15:43:49,902 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 15:43:49,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 15:43:49,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 15:43:49,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 15:43:49,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 15:43:49,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 15:43:49,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 15:43:49,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 15:43:49,905 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 15:43:49,905 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 15:43:49,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 15:43:49,906 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 -> 902bca7b1502ca5dcb44bb7e7d9bc6d169c57d43 [2019-11-21 15:43:50,230 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 15:43:50,243 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 15:43:50,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 15:43:50,248 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 15:43:50,249 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 15:43:50,250 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2019-11-21 15:43:50,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd1b5ea92/0fedfb7162f747d59c90921a5d711c11/FLAG73d1c8fc7 [2019-11-21 15:43:50,843 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 15:43:50,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2019-11-21 15:43:50,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd1b5ea92/0fedfb7162f747d59c90921a5d711c11/FLAG73d1c8fc7 [2019-11-21 15:43:51,130 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd1b5ea92/0fedfb7162f747d59c90921a5d711c11 [2019-11-21 15:43:51,133 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 15:43:51,134 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 15:43:51,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 15:43:51,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 15:43:51,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 15:43:51,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 03:43:51" (1/1) ... [2019-11-21 15:43:51,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6f8193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:43:51, skipping insertion in model container [2019-11-21 15:43:51,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 03:43:51" (1/1) ... [2019-11-21 15:43:51,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 15:43:51,217 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 15:43:51,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 15:43:51,860 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 15:43:51,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 15:43:52,006 INFO L205 MainTranslator]: Completed translation [2019-11-21 15:43:52,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:43:52 WrapperNode [2019-11-21 15:43:52,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 15:43:52,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 15:43:52,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 15:43:52,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 15:43:52,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:43:52" (1/1) ... [2019-11-21 15:43:52,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:43:52" (1/1) ... [2019-11-21 15:43:52,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:43:52" (1/1) ... [2019-11-21 15:43:52,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:43:52" (1/1) ... [2019-11-21 15:43:52,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:43:52" (1/1) ... [2019-11-21 15:43:52,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:43:52" (1/1) ... [2019-11-21 15:43:52,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:43:52" (1/1) ... [2019-11-21 15:43:52,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 15:43:52,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 15:43:52,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 15:43:52,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 15:43:52,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:43:52" (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 15:43:52,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 15:43:52,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 15:43:52,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 15:43:52,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 15:43:52,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 15:43:52,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 15:43:52,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 15:43:52,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 15:43:52,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 15:43:52,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 15:43:52,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 15:43:52,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 15:43:52,171 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 15:43:52,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 15:43:52,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 15:43:52,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 15:43:52,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 15:43:52,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 15:43:52,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 15:43:52,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 15:43:52,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 15:43:52,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 15:43:52,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 15:43:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 15:43:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 15:43:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 15:43:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 15:43:52,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 15:43:52,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 15:43:52,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 15:43:52,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 15:43:52,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 15:43:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 15:43:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 15:43:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 15:43:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 15:43:52,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 15:43:52,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 15:43:52,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 15:43:52,177 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 15:43:52,178 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 15:43:52,178 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-21 15:43:52,178 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-21 15:43:52,178 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 15:43:52,178 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 15:43:52,179 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 15:43:52,179 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 15:43:52,179 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 15:43:52,179 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 15:43:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 15:43:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 15:43:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 15:43:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 15:43:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 15:43:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 15:43:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 15:43:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 15:43:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 15:43:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 15:43:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 15:43:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 15:43:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 15:43:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 15:43:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 15:43:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 15:43:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 15:43:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 15:43:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 15:43:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 15:43:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 15:43:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 15:43:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 15:43:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 15:43:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 15:43:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 15:43:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 15:43:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 15:43:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 15:43:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 15:43:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 15:43:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 15:43:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 15:43:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 15:43:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 15:43:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 15:43:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 15:43:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 15:43:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 15:43:52,188 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 15:43:52,188 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 15:43:52,188 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 15:43:52,188 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 15:43:52,188 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 15:43:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 15:43:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 15:43:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 15:43:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 15:43:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 15:43:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 15:43:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 15:43:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 15:43:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 15:43:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 15:43:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 15:43:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 15:43:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 15:43:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 15:43:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 15:43:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 15:43:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 15:43:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 15:43:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 15:43:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 15:43:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 15:43:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 15:43:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 15:43:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 15:43:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 15:43:52,193 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 15:43:52,193 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 15:43:52,193 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 15:43:52,194 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 15:43:52,194 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 15:43:52,194 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 15:43:52,194 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 15:43:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 15:43:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 15:43:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 15:43:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 15:43:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 15:43:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 15:43:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 15:43:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 15:43:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 15:43:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 15:43:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 15:43:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 15:43:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 15:43:52,198 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 15:43:52,198 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 15:43:52,198 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 15:43:52,198 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 15:43:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 15:43:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 15:43:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 15:43:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 15:43:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 15:43:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 15:43:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 15:43:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 15:43:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 15:43:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 15:43:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 15:43:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 15:43:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 15:43:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 15:43:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 15:43:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 15:43:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 15:43:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 15:43:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 15:43:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 15:43:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 15:43:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 15:43:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 15:43:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 15:43:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 15:43:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 15:43:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 15:43:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 15:43:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 15:43:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 15:43:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 15:43:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 15:43:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 15:43:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 15:43:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 15:43:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 15:43:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 15:43:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 15:43:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 15:43:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 15:43:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 15:43:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 15:43:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 15:43:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 15:43:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 15:43:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 15:43:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 15:43:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 15:43:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 15:43:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 15:43:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 15:43:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 15:43:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 15:43:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 15:43:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 15:43:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 15:43:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 15:43:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 15:43:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 15:43:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 15:43:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 15:43:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-21 15:43:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-21 15:43:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-21 15:43:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 15:43:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 15:43:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 15:43:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 15:43:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 15:43:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 15:43:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 15:43:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 15:43:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 15:43:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 15:43:52,836 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 15:43:53,282 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 15:43:53,867 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 15:43:53,868 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-21 15:43:53,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 03:43:53 BoogieIcfgContainer [2019-11-21 15:43:53,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 15:43:53,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 15:43:53,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 15:43:53,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 15:43:53,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 03:43:51" (1/3) ... [2019-11-21 15:43:53,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f125941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 03:43:53, skipping insertion in model container [2019-11-21 15:43:53,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:43:52" (2/3) ... [2019-11-21 15:43:53,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f125941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 03:43:53, skipping insertion in model container [2019-11-21 15:43:53,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 03:43:53" (3/3) ... [2019-11-21 15:43:53,885 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_2-2.i [2019-11-21 15:43:53,895 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 15:43:53,906 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-21 15:43:53,918 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-21 15:43:53,940 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 15:43:53,940 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 15:43:53,941 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 15:43:53,941 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 15:43:53,941 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 15:43:53,941 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 15:43:53,942 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 15:43:53,942 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 15:43:53,974 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2019-11-21 15:43:53,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 15:43:53,987 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:43:53,988 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:43:53,990 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:43:53,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:43:53,996 INFO L82 PathProgramCache]: Analyzing trace with hash 597436025, now seen corresponding path program 1 times [2019-11-21 15:43:54,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:43:54,011 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1637384400] [2019-11-21 15:43:54,012 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 15:43:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:43:54,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 15:43:54,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:43:54,484 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 15:43:54,485 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:43:54,495 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:43:54,495 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:43:54,496 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 15:43:54,545 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 15:43:54,550 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:43:54,618 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 15:43:54,619 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1637384400] [2019-11-21 15:43:54,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:43:54,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 15:43:54,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475120210] [2019-11-21 15:43:54,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 15:43:54,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:43:54,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 15:43:54,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:43:54,646 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 5 states. [2019-11-21 15:43:54,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:43:54,960 INFO L93 Difference]: Finished difference Result 93 states and 105 transitions. [2019-11-21 15:43:54,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 15:43:54,964 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 15:43:54,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:43:54,985 INFO L225 Difference]: With dead ends: 93 [2019-11-21 15:43:54,986 INFO L226 Difference]: Without dead ends: 90 [2019-11-21 15:43:54,988 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 1 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 15:43:55,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-21 15:43:55,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2019-11-21 15:43:55,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-21 15:43:55,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2019-11-21 15:43:55,039 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 22 [2019-11-21 15:43:55,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:43:55,040 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2019-11-21 15:43:55,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 15:43:55,041 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2019-11-21 15:43:55,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 15:43:55,043 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:43:55,043 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:43:55,248 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:43:55,249 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:43:55,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:43:55,250 INFO L82 PathProgramCache]: Analyzing trace with hash 597436026, now seen corresponding path program 1 times [2019-11-21 15:43:55,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:43:55,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [678507221] [2019-11-21 15:43:55,251 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 15:43:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:43:55,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-21 15:43:55,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:43:55,585 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 15:43:55,585 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:43:55,592 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:43:55,592 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:43:55,593 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 15:43:55,816 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 15:43:55,817 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:43:56,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:43:57,093 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 15:43:57,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [678507221] [2019-11-21 15:43:57,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:43:57,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 17 [2019-11-21 15:43:57,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699668109] [2019-11-21 15:43:57,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-21 15:43:57,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:43:57,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-21 15:43:57,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-11-21 15:43:57,097 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand 18 states. [2019-11-21 15:43:59,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:43:59,141 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2019-11-21 15:43:59,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-21 15:43:59,142 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2019-11-21 15:43:59,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:43:59,145 INFO L225 Difference]: With dead ends: 100 [2019-11-21 15:43:59,146 INFO L226 Difference]: Without dead ends: 100 [2019-11-21 15:43:59,147 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2019-11-21 15:43:59,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-11-21 15:43:59,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 91. [2019-11-21 15:43:59,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-21 15:43:59,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2019-11-21 15:43:59,160 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 22 [2019-11-21 15:43:59,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:43:59,160 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2019-11-21 15:43:59,160 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-21 15:43:59,161 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2019-11-21 15:43:59,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 15:43:59,161 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:43:59,162 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:43:59,362 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:43:59,363 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:43:59,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:43:59,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1484939706, now seen corresponding path program 1 times [2019-11-21 15:43:59,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:43:59,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [724084031] [2019-11-21 15:43:59,366 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 15:43:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:43:59,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 15:43:59,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:43:59,633 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 15:43:59,634 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:43:59,697 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 15:43:59,697 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [724084031] [2019-11-21 15:43:59,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:43:59,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 15:43:59,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927803198] [2019-11-21 15:43:59,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 15:43:59,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:43:59,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 15:43:59,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:43:59,700 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand 5 states. [2019-11-21 15:43:59,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:43:59,767 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2019-11-21 15:43:59,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 15:43:59,768 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 15:43:59,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:43:59,770 INFO L225 Difference]: With dead ends: 90 [2019-11-21 15:43:59,770 INFO L226 Difference]: Without dead ends: 90 [2019-11-21 15:43:59,771 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 15:43:59,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-21 15:43:59,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-11-21 15:43:59,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-21 15:43:59,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2019-11-21 15:43:59,790 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 22 [2019-11-21 15:43:59,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:43:59,791 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2019-11-21 15:43:59,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 15:43:59,791 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2019-11-21 15:43:59,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 15:43:59,794 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:43:59,799 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:43:59,999 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:00,001 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:00,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:00,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1341474425, now seen corresponding path program 1 times [2019-11-21 15:44:00,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:00,003 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1006181247] [2019-11-21 15:44:00,003 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 15:44:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:00,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 15:44:00,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:00,265 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 15:44:00,265 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:00,346 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 15:44:00,346 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1006181247] [2019-11-21 15:44:00,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:44:00,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 15:44:00,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466449394] [2019-11-21 15:44:00,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 15:44:00,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:00,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 15:44:00,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:44:00,348 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand 5 states. [2019-11-21 15:44:00,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:00,403 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2019-11-21 15:44:00,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 15:44:00,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-21 15:44:00,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:00,407 INFO L225 Difference]: With dead ends: 90 [2019-11-21 15:44:00,408 INFO L226 Difference]: Without dead ends: 90 [2019-11-21 15:44:00,408 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 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 15:44:00,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-21 15:44:00,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-11-21 15:44:00,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-21 15:44:00,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2019-11-21 15:44:00,416 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 23 [2019-11-21 15:44:00,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:00,417 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2019-11-21 15:44:00,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 15:44:00,417 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2019-11-21 15:44:00,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 15:44:00,418 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:00,419 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:44:00,619 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:00,620 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:00,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:00,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1210682536, now seen corresponding path program 1 times [2019-11-21 15:44:00,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:00,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1625185798] [2019-11-21 15:44:00,623 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 15:44:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:00,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 15:44:00,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:00,852 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 15:44:00,852 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:00,923 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 15:44:00,924 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1625185798] [2019-11-21 15:44:00,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:44:00,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 15:44:00,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159185443] [2019-11-21 15:44:00,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 15:44:00,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:00,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 15:44:00,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 15:44:00,926 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand 3 states. [2019-11-21 15:44:01,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:01,060 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2019-11-21 15:44:01,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 15:44:01,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-21 15:44:01,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:01,062 INFO L225 Difference]: With dead ends: 126 [2019-11-21 15:44:01,062 INFO L226 Difference]: Without dead ends: 121 [2019-11-21 15:44:01,062 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 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 15:44:01,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-21 15:44:01,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 86. [2019-11-21 15:44:01,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-21 15:44:01,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2019-11-21 15:44:01,070 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 23 [2019-11-21 15:44:01,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:01,070 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2019-11-21 15:44:01,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 15:44:01,071 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2019-11-21 15:44:01,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 15:44:01,071 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:01,072 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:44:01,274 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:01,275 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:01,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:01,276 INFO L82 PathProgramCache]: Analyzing trace with hash -343863878, now seen corresponding path program 1 times [2019-11-21 15:44:01,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:01,277 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1340938567] [2019-11-21 15:44:01,277 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 15:44:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:01,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-21 15:44:01,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:01,625 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 15:44:01,626 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:01,632 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:01,632 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:44:01,632 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 15:44:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:02,035 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:03,668 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 15:44:06,471 WARN L192 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-11-21 15:44:07,020 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:07,021 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1340938567] [2019-11-21 15:44:07,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 15:44:07,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2019-11-21 15:44:07,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693047166] [2019-11-21 15:44:07,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-21 15:44:07,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:07,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-21 15:44:07,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2019-11-21 15:44:07,023 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand 25 states. [2019-11-21 15:44:08,151 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2019-11-21 15:44:08,780 WARN L192 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2019-11-21 15:44:09,448 WARN L192 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2019-11-21 15:44:10,034 WARN L192 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2019-11-21 15:44:10,522 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 29 [2019-11-21 15:44:10,946 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-21 15:44:11,218 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-11-21 15:44:12,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:12,673 INFO L93 Difference]: Finished difference Result 103 states and 119 transitions. [2019-11-21 15:44:12,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-21 15:44:12,675 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 28 [2019-11-21 15:44:12,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:12,677 INFO L225 Difference]: With dead ends: 103 [2019-11-21 15:44:12,677 INFO L226 Difference]: Without dead ends: 103 [2019-11-21 15:44:12,678 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=258, Invalid=1074, Unknown=0, NotChecked=0, Total=1332 [2019-11-21 15:44:12,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-11-21 15:44:12,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98. [2019-11-21 15:44:12,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-21 15:44:12,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2019-11-21 15:44:12,685 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 28 [2019-11-21 15:44:12,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:12,686 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2019-11-21 15:44:12,686 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-21 15:44:12,686 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2019-11-21 15:44:12,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 15:44:12,688 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:12,688 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:44:12,888 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:12,889 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:12,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:12,890 INFO L82 PathProgramCache]: Analyzing trace with hash 2025519899, now seen corresponding path program 1 times [2019-11-21 15:44:12,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:12,891 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [796216899] [2019-11-21 15:44:12,892 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 15:44:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:13,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-21 15:44:13,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:13,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:13,287 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:13,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:13,494 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [796216899] [2019-11-21 15:44:13,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 15:44:13,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 14 [2019-11-21 15:44:13,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990568592] [2019-11-21 15:44:13,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 15:44:13,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:13,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 15:44:13,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-21 15:44:13,497 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 14 states. [2019-11-21 15:44:13,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:13,879 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2019-11-21 15:44:13,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 15:44:13,880 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 35 [2019-11-21 15:44:13,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:13,883 INFO L225 Difference]: With dead ends: 140 [2019-11-21 15:44:13,883 INFO L226 Difference]: Without dead ends: 137 [2019-11-21 15:44:13,885 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2019-11-21 15:44:13,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-21 15:44:13,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2019-11-21 15:44:13,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-11-21 15:44:13,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2019-11-21 15:44:13,899 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 35 [2019-11-21 15:44:13,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:13,899 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2019-11-21 15:44:13,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 15:44:13,899 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2019-11-21 15:44:13,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 15:44:13,901 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:13,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:44:14,112 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:14,112 INFO L410 AbstractCegarLoop]: === Iteration 8 === [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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:14,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:14,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1928439432, now seen corresponding path program 1 times [2019-11-21 15:44:14,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:14,113 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [287884854] [2019-11-21 15:44:14,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:14,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 15:44:14,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:14,405 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 15:44:14,406 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:14,407 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:14,408 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:44:14,408 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 15:44:14,530 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:14,531 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-21 15:44:14,532 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:14,559 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 15:44:14,560 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 15:44:14,560 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 15:44:14,603 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-21 15:44:14,603 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:19,010 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:19,011 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [287884854] [2019-11-21 15:44:19,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 15:44:19,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-21 15:44:19,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543237102] [2019-11-21 15:44:19,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 15:44:19,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:19,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 15:44:19,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=173, Unknown=1, NotChecked=0, Total=210 [2019-11-21 15:44:19,013 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 8 states. [2019-11-21 15:44:38,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:38,232 INFO L93 Difference]: Finished difference Result 157 states and 182 transitions. [2019-11-21 15:44:38,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 15:44:38,233 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-21 15:44:38,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:38,236 INFO L225 Difference]: With dead ends: 157 [2019-11-21 15:44:38,236 INFO L226 Difference]: Without dead ends: 157 [2019-11-21 15:44:38,236 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=83, Invalid=377, Unknown=2, NotChecked=0, Total=462 [2019-11-21 15:44:38,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-21 15:44:38,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 105. [2019-11-21 15:44:38,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-21 15:44:38,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2019-11-21 15:44:38,251 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 35 [2019-11-21 15:44:38,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:38,251 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2019-11-21 15:44:38,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 15:44:38,252 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2019-11-21 15:44:38,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 15:44:38,253 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:38,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:44:38,457 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:38,462 INFO L410 AbstractCegarLoop]: === Iteration 9 === [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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:38,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:38,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1928439431, now seen corresponding path program 1 times [2019-11-21 15:44:38,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:38,463 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1250372480] [2019-11-21 15:44:38,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:38,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 35 conjunts are in the unsatisfiable core [2019-11-21 15:44:38,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:38,812 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 15:44:38,813 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:38,823 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:38,831 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 15:44:38,831 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:38,840 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:38,840 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:44:38,841 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 15:44:41,321 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:41,321 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-21 15:44:41,322 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:41,364 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:41,370 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-21 15:44:41,371 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:41,392 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:41,392 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 15:44:41,393 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:37, output treesize:21 [2019-11-21 15:44:41,446 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:41,446 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:41,687 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 15:44:42,158 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 15:44:42,159 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:44:42,159 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:44:42,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:44:42,162 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:44:42,162 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:44:42,164 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:44:42,164 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:44:42,166 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:44:45,516 WARN L192 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 15:44:45,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:44:50,243 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_231|], 2=[|v_#length_186|]} [2019-11-21 15:44:50,250 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 15:44:50,251 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:50,253 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:50,253 INFO L464 ElimStorePlain]: Eliminatee |v_#length_186| vanished before elimination [2019-11-21 15:44:50,253 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:44:50,253 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:30, output treesize:1 [2019-11-21 15:44:50,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 15:44:51,003 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 15:44:51,021 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 15:44:51,021 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:51,041 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:51,044 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 15:44:51,045 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:51,066 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:51,066 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 15:44:51,067 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:34, output treesize:17 [2019-11-21 15:44:51,285 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:51,285 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1250372480] [2019-11-21 15:44:51,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 15:44:51,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 29 [2019-11-21 15:44:51,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31132801] [2019-11-21 15:44:51,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-21 15:44:51,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:51,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-21 15:44:51,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=777, Unknown=1, NotChecked=0, Total=870 [2019-11-21 15:44:51,287 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 30 states. [2019-11-21 15:45:47,529 WARN L192 SmtUtils]: Spent 12.73 s on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2019-11-21 15:46:18,773 WARN L192 SmtUtils]: Spent 28.20 s on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2019-11-21 15:47:09,058 WARN L192 SmtUtils]: Spent 39.32 s on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-11-21 15:47:24,554 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (forall ((v_prenex_14 (_ BitVec 32))) (not (= (select |c_#valid| v_prenex_14) (_ bv0 1))))) (.cse0 (not (bvslt (_ bv0 32) c_entry_point_~len~0))) (.cse3 (forall ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_34|) (_ bv0 1))))) (.cse2 (bvslt (_ bv1 32) c_entry_point_~len~0))) (and (or .cse0 .cse1 (bvsle |c_entry_point_#t~ret45.offset| (bvadd |c_entry_point_#t~ret45.offset| (_ bv8 32))) .cse2) (or (bvsle c_entry_point_~array~0.offset (bvadd c_entry_point_~array~0.offset (_ bv8 32))) .cse1) (or .cse0 (forall ((v_prenex_13 (_ BitVec 32)) (v_ldv_malloc_~size_42 (_ BitVec 32))) (or (bvsle (bvadd |c_entry_point_#t~ret45.offset| (_ bv8 32)) (select (store |c_#length| v_prenex_13 v_ldv_malloc_~size_42) |c_entry_point_#t~ret45.base|)) (not (= (select |c_#valid| v_prenex_13) (_ bv0 1))))) .cse2) (forall ((v_prenex_13 (_ BitVec 32)) (v_ldv_malloc_~size_42 (_ BitVec 32))) (or (not (= (select |c_#valid| v_prenex_13) (_ bv0 1))) (bvsle (bvadd c_entry_point_~array~0.offset (_ bv8 32)) (select (store |c_#length| v_prenex_13 v_ldv_malloc_~size_42) c_entry_point_~array~0.base)))) (= (_ bv1 1) (select |c_#valid| c_entry_point_~array~0.base)) (= (select |c_#length| c_entry_point_~array~0.base) (bvmul (_ bv8 32) c_entry_point_~len~0)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (or (bvsle (_ bv0 32) c_entry_point_~array~0.offset) .cse3) (bvsgt c_entry_point_~len~0 (_ bv0 32)) (= (_ bv0 32) c_entry_point_~array~0.offset) (or .cse0 (bvsle (_ bv0 32) |c_entry_point_#t~ret45.offset|) .cse3 .cse2))) is different from false [2019-11-21 15:47:26,970 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-11-21 15:47:40,280 WARN L192 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-11-21 15:47:45,790 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2019-11-21 15:48:06,673 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-21 15:48:17,673 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-21 15:48:47,148 WARN L192 SmtUtils]: Spent 6.22 s on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2019-11-21 15:48:47,858 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-21 15:49:01,854 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2019-11-21 15:49:06,957 WARN L192 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-11-21 15:49:11,184 WARN L192 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 102 [2019-11-21 15:49:28,199 WARN L192 SmtUtils]: Spent 13.91 s on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2019-11-21 15:49:46,275 WARN L192 SmtUtils]: Spent 6.31 s on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-11-21 15:49:48,977 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2019-11-21 15:49:54,327 WARN L192 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-11-21 15:50:07,597 WARN L192 SmtUtils]: Spent 10.75 s on a formula simplification that was a NOOP. DAG size: 52 [2019-11-21 15:50:40,002 WARN L192 SmtUtils]: Spent 8.20 s on a formula simplification. DAG size of input: 45 DAG size of output: 33 [2019-11-21 15:50:50,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:50:50,458 INFO L93 Difference]: Finished difference Result 453 states and 541 transitions. [2019-11-21 15:50:50,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2019-11-21 15:50:50,460 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 35 [2019-11-21 15:50:50,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:50:50,464 INFO L225 Difference]: With dead ends: 453 [2019-11-21 15:50:50,464 INFO L226 Difference]: Without dead ends: 453 [2019-11-21 15:50:50,466 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 68 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1033 ImplicationChecksByTransitivity, 193.5s TimeCoverageRelationStatistics Valid=504, Invalid=4185, Unknown=7, NotChecked=134, Total=4830 [2019-11-21 15:50:50,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2019-11-21 15:50:50,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 199. [2019-11-21 15:50:50,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2019-11-21 15:50:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 272 transitions. [2019-11-21 15:50:50,482 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 272 transitions. Word has length 35 [2019-11-21 15:50:50,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:50:50,483 INFO L462 AbstractCegarLoop]: Abstraction has 199 states and 272 transitions. [2019-11-21 15:50:50,483 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-11-21 15:50:50,483 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 272 transitions. [2019-11-21 15:50:50,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-21 15:50:50,485 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:50:50,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:50:50,693 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:50:50,694 INFO L410 AbstractCegarLoop]: === Iteration 10 === [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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:50:50,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:50:50,695 INFO L82 PathProgramCache]: Analyzing trace with hash -2099434107, now seen corresponding path program 1 times [2019-11-21 15:50:50,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:50:50,696 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1914136358] [2019-11-21 15:50:50,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:50:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:50:50,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 15:50:50,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:50:50,956 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-21 15:50:50,956 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:50:50,994 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-21 15:50:50,995 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1914136358] [2019-11-21 15:50:50,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:50:50,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 15:50:50,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956588476] [2019-11-21 15:50:50,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 15:50:50,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:50:50,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 15:50:50,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:50:50,997 INFO L87 Difference]: Start difference. First operand 199 states and 272 transitions. Second operand 5 states. [2019-11-21 15:50:51,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:50:51,068 INFO L93 Difference]: Finished difference Result 205 states and 273 transitions. [2019-11-21 15:50:51,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 15:50:51,069 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-11-21 15:50:51,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:50:51,071 INFO L225 Difference]: With dead ends: 205 [2019-11-21 15:50:51,071 INFO L226 Difference]: Without dead ends: 205 [2019-11-21 15:50:51,072 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 15:50:51,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2019-11-21 15:50:51,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 192. [2019-11-21 15:50:51,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2019-11-21 15:50:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 256 transitions. [2019-11-21 15:50:51,083 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 256 transitions. Word has length 37 [2019-11-21 15:50:51,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:50:51,084 INFO L462 AbstractCegarLoop]: Abstraction has 192 states and 256 transitions. [2019-11-21 15:50:51,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 15:50:51,084 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 256 transitions. [2019-11-21 15:50:51,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-21 15:50:51,085 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:50:51,085 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:50:51,288 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:50:51,289 INFO L410 AbstractCegarLoop]: === Iteration 11 === [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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:50:51,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:50:51,290 INFO L82 PathProgramCache]: Analyzing trace with hash -356623772, now seen corresponding path program 1 times [2019-11-21 15:50:51,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:50:51,291 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [56151793] [2019-11-21 15:50:51,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:50:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:50:51,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 15:50:51,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:50:51,586 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-21 15:50:51,586 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:50:51,614 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-21 15:50:51,614 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [56151793] [2019-11-21 15:50:51,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:50:51,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 15:50:51,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199279285] [2019-11-21 15:50:51,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 15:50:51,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:50:51,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 15:50:51,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 15:50:51,616 INFO L87 Difference]: Start difference. First operand 192 states and 256 transitions. Second operand 6 states. [2019-11-21 15:50:51,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:50:51,757 INFO L93 Difference]: Finished difference Result 214 states and 274 transitions. [2019-11-21 15:50:51,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 15:50:51,758 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-11-21 15:50:51,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:50:51,761 INFO L225 Difference]: With dead ends: 214 [2019-11-21 15:50:51,761 INFO L226 Difference]: Without dead ends: 214 [2019-11-21 15:50:51,761 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-21 15:50:51,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2019-11-21 15:50:51,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 184. [2019-11-21 15:50:51,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-11-21 15:50:51,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 241 transitions. [2019-11-21 15:50:51,770 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 241 transitions. Word has length 37 [2019-11-21 15:50:51,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:50:51,771 INFO L462 AbstractCegarLoop]: Abstraction has 184 states and 241 transitions. [2019-11-21 15:50:51,771 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 15:50:51,771 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 241 transitions. [2019-11-21 15:50:51,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-21 15:50:51,772 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:50:51,772 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:50:51,975 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:50:51,976 INFO L410 AbstractCegarLoop]: === Iteration 12 === [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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:50:51,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:50:51,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1765265242, now seen corresponding path program 1 times [2019-11-21 15:50:51,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:50:51,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [426160068] [2019-11-21 15:50:51,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:50:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:50:52,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 15:50:52,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:50:52,313 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-21 15:50:52,314 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:50:52,360 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-21 15:50:52,360 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [426160068] [2019-11-21 15:50:52,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:50:52,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 15:50:52,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514569832] [2019-11-21 15:50:52,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 15:50:52,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:50:52,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 15:50:52,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:50:52,362 INFO L87 Difference]: Start difference. First operand 184 states and 241 transitions. Second operand 5 states. [2019-11-21 15:50:52,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:50:52,389 INFO L93 Difference]: Finished difference Result 164 states and 198 transitions. [2019-11-21 15:50:52,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 15:50:52,390 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2019-11-21 15:50:52,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:50:52,392 INFO L225 Difference]: With dead ends: 164 [2019-11-21 15:50:52,392 INFO L226 Difference]: Without dead ends: 164 [2019-11-21 15:50:52,392 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 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 15:50:52,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-11-21 15:50:52,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2019-11-21 15:50:52,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-21 15:50:52,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 196 transitions. [2019-11-21 15:50:52,399 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 196 transitions. Word has length 38 [2019-11-21 15:50:52,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:50:52,399 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 196 transitions. [2019-11-21 15:50:52,399 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 15:50:52,399 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 196 transitions. [2019-11-21 15:50:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-21 15:50:52,400 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:50:52,400 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:50:52,604 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:50:52,613 INFO L410 AbstractCegarLoop]: === Iteration 13 === [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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:50:52,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:50:52,613 INFO L82 PathProgramCache]: Analyzing trace with hash 519015482, now seen corresponding path program 2 times [2019-11-21 15:50:52,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:50:52,614 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2147471592] [2019-11-21 15:50:52,614 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:50:52,959 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-21 15:50:52,959 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 15:50:52,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-21 15:50:52,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:50:53,001 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 15:50:53,001 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:50:53,007 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:50:53,008 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:50:53,008 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 15:50:53,850 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:50:53,851 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:50:55,448 WARN L192 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2019-11-21 15:50:56,139 WARN L192 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-21 15:50:56,612 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-21 15:50:57,160 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-21 15:50:57,720 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-21 15:50:58,738 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 15:50:59,720 WARN L192 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-11-21 15:51:00,581 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:51:00,581 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2147471592] [2019-11-21 15:51:00,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 15:51:00,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 33 [2019-11-21 15:51:00,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936264011] [2019-11-21 15:51:00,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-21 15:51:00,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:51:00,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-21 15:51:00,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=920, Unknown=0, NotChecked=0, Total=1122 [2019-11-21 15:51:00,584 INFO L87 Difference]: Start difference. First operand 162 states and 196 transitions. Second operand 34 states. [2019-11-21 15:51:01,960 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-21 15:51:02,632 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-21 15:51:03,441 WARN L192 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2019-11-21 15:51:04,479 WARN L192 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-11-21 15:51:05,003 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-21 15:51:05,748 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-21 15:51:06,339 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-11-21 15:51:06,914 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-11-21 15:51:09,768 WARN L192 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 103 DAG size of output: 80 [2019-11-21 15:51:11,627 WARN L192 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 99 DAG size of output: 29 [2019-11-21 15:51:14,133 WARN L192 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 89 DAG size of output: 69 [2019-11-21 15:51:15,971 WARN L192 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 29 [2019-11-21 15:51:18,222 WARN L192 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2019-11-21 15:51:20,043 WARN L192 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 29 [2019-11-21 15:51:22,036 WARN L192 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2019-11-21 15:51:23,513 WARN L192 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 29 [2019-11-21 15:51:25,159 WARN L192 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2019-11-21 15:51:26,255 WARN L192 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 29 [2019-11-21 15:51:27,119 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-21 15:51:28,643 WARN L192 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2019-11-21 15:51:29,230 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-11-21 15:51:30,991 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2019-11-21 15:51:33,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:51:33,940 INFO L93 Difference]: Finished difference Result 197 states and 267 transitions. [2019-11-21 15:51:33,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-11-21 15:51:33,945 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 40 [2019-11-21 15:51:33,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:51:33,948 INFO L225 Difference]: With dead ends: 197 [2019-11-21 15:51:33,948 INFO L226 Difference]: Without dead ends: 197 [2019-11-21 15:51:33,950 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 934 ImplicationChecksByTransitivity, 33.0s TimeCoverageRelationStatistics Valid=890, Invalid=3016, Unknown=0, NotChecked=0, Total=3906 [2019-11-21 15:51:33,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-11-21 15:51:33,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 186. [2019-11-21 15:51:33,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2019-11-21 15:51:33,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 228 transitions. [2019-11-21 15:51:33,969 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 228 transitions. Word has length 40 [2019-11-21 15:51:33,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:51:33,969 INFO L462 AbstractCegarLoop]: Abstraction has 186 states and 228 transitions. [2019-11-21 15:51:33,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-21 15:51:33,970 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 228 transitions. [2019-11-21 15:51:33,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-21 15:51:33,972 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:51:33,972 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:51:34,175 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:51:34,176 INFO L410 AbstractCegarLoop]: === Iteration 14 === [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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:51:34,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:51:34,177 INFO L82 PathProgramCache]: Analyzing trace with hash -725997882, now seen corresponding path program 1 times [2019-11-21 15:51:34,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:51:34,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2030278103] [2019-11-21 15:51:34,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:51:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:51:34,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 15:51:34,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:51:34,531 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 15:51:34,531 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:51:34,534 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:51:34,534 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:51:34,534 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 15:51:34,586 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-21 15:51:34,586 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:51:34,877 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:51:34,879 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 15:51:34,889 INFO L168 Benchmark]: Toolchain (without parser) took 463754.53 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 241.2 MB). Free memory was 952.3 MB in the beginning and 947.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 245.9 MB. Max. memory is 11.5 GB. [2019-11-21 15:51:34,889 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 15:51:34,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 872.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -122.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-21 15:51:34,890 INFO L168 Benchmark]: Boogie Preprocessor took 105.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 15:51:34,890 INFO L168 Benchmark]: RCFGBuilder took 1757.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 954.1 MB in the end (delta: 121.1 MB). Peak memory consumption was 121.1 MB. Max. memory is 11.5 GB. [2019-11-21 15:51:34,891 INFO L168 Benchmark]: TraceAbstraction took 461012.12 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 119.5 MB). Free memory was 954.1 MB in the beginning and 947.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 126.0 MB. Max. memory is 11.5 GB. [2019-11-21 15:51:34,894 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 872.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -122.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 105.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1757.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 954.1 MB in the end (delta: 121.1 MB). Peak memory consumption was 121.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 461012.12 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 119.5 MB). Free memory was 954.1 MB in the beginning and 947.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 126.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...