./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 65a59966 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 0.1.24-65a5996 [2019-11-20 19:02:36,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 19:02:36,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 19:02:36,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 19:02:36,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 19:02:36,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 19:02:36,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 19:02:36,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 19:02:36,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 19:02:36,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 19:02:36,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 19:02:36,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 19:02:36,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 19:02:36,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 19:02:36,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 19:02:36,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 19:02:36,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 19:02:36,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 19:02:36,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 19:02:36,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 19:02:36,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 19:02:36,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 19:02:36,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 19:02:36,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 19:02:36,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 19:02:36,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 19:02:36,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 19:02:36,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 19:02:36,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 19:02:36,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 19:02:36,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 19:02:36,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 19:02:36,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 19:02:36,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 19:02:36,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 19:02:36,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 19:02:36,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 19:02:36,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 19:02:36,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 19:02:36,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 19:02:36,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 19:02:36,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-20 19:02:36,907 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 19:02:36,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 19:02:36,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 19:02:36,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 19:02:36,909 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 19:02:36,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 19:02:36,909 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 19:02:36,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 19:02:36,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 19:02:36,910 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 19:02:36,910 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 19:02:36,910 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 19:02:36,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 19:02:36,911 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 19:02:36,911 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 19:02:36,911 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 19:02:36,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 19:02:36,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 19:02:36,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 19:02:36,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 19:02:36,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 19:02:36,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 19:02:36,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 19:02:36,913 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 19:02:36,913 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 19:02:36,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 19:02:36,914 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 [2019-11-20 19:02:37,217 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 19:02:37,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 19:02:37,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 19:02:37,236 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 19:02:37,237 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 19:02:37,238 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2019-11-20 19:02:37,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4da54e7d8/7611ff0371364e059bc366a43ea718b6/FLAG0efbd5aad [2019-11-20 19:02:37,917 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 19:02:37,919 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2019-11-20 19:02:37,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4da54e7d8/7611ff0371364e059bc366a43ea718b6/FLAG0efbd5aad [2019-11-20 19:02:38,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4da54e7d8/7611ff0371364e059bc366a43ea718b6 [2019-11-20 19:02:38,187 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 19:02:38,189 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 19:02:38,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 19:02:38,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 19:02:38,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 19:02:38,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:02:38" (1/1) ... [2019-11-20 19:02:38,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70faaee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:38, skipping insertion in model container [2019-11-20 19:02:38,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:02:38" (1/1) ... [2019-11-20 19:02:38,206 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 19:02:38,278 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 19:02:38,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 19:02:38,870 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 19:02:38,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 19:02:39,018 INFO L192 MainTranslator]: Completed translation [2019-11-20 19:02:39,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:39 WrapperNode [2019-11-20 19:02:39,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 19:02:39,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 19:02:39,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 19:02:39,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 19:02:39,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:39" (1/1) ... [2019-11-20 19:02:39,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:39" (1/1) ... [2019-11-20 19:02:39,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:39" (1/1) ... [2019-11-20 19:02:39,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:39" (1/1) ... [2019-11-20 19:02:39,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:39" (1/1) ... [2019-11-20 19:02:39,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:39" (1/1) ... [2019-11-20 19:02:39,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:39" (1/1) ... [2019-11-20 19:02:39,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 19:02:39,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 19:02:39,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 19:02:39,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 19:02:39,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:39" (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 [2019-11-20 19:02:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 19:02:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 19:02:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 19:02:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 19:02:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 19:02:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 19:02:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 19:02:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 19:02:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 19:02:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 19:02:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 19:02:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 19:02:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 19:02:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 19:02:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 19:02:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 19:02:39,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 19:02:39,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 19:02:39,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 19:02:39,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 19:02:39,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 19:02:39,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 19:02:39,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 19:02:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 19:02:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 19:02:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 19:02:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 19:02:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 19:02:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 19:02:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 19:02:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 19:02:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 19:02:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 19:02:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 19:02:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 19:02:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 19:02:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 19:02:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 19:02:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 19:02:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 19:02:39,250 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 19:02:39,250 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-20 19:02:39,250 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-20 19:02:39,250 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 19:02:39,250 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 19:02:39,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 19:02:39,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 19:02:39,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 19:02:39,251 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 19:02:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 19:02:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 19:02:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 19:02:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 19:02:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 19:02:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 19:02:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 19:02:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 19:02:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 19:02:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 19:02:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 19:02:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 19:02:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 19:02:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 19:02:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 19:02:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 19:02:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 19:02:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 19:02:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 19:02:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 19:02:39,256 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 19:02:39,256 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 19:02:39,256 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 19:02:39,256 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 19:02:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 19:02:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 19:02:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 19:02:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 19:02:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 19:02:39,258 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 19:02:39,258 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 19:02:39,258 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 19:02:39,258 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 19:02:39,258 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 19:02:39,259 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 19:02:39,259 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 19:02:39,259 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 19:02:39,259 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 19:02:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 19:02:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 19:02:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 19:02:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 19:02:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 19:02:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 19:02:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 19:02:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 19:02:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 19:02:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 19:02:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 19:02:39,262 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 19:02:39,262 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 19:02:39,262 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 19:02:39,262 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 19:02:39,262 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 19:02:39,263 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 19:02:39,263 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 19:02:39,263 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 19:02:39,263 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 19:02:39,263 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 19:02:39,264 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 19:02:39,264 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 19:02:39,264 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 19:02:39,264 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 19:02:39,264 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 19:02:39,264 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 19:02:39,265 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 19:02:39,265 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 19:02:39,265 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 19:02:39,265 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 19:02:39,265 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 19:02:39,266 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 19:02:39,266 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 19:02:39,266 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 19:02:39,266 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 19:02:39,266 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 19:02:39,267 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 19:02:39,267 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 19:02:39,267 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 19:02:39,267 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 19:02:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 19:02:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 19:02:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 19:02:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 19:02:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 19:02:39,269 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 19:02:39,269 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 19:02:39,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 19:02:39,269 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 19:02:39,270 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 19:02:39,270 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 19:02:39,270 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 19:02:39,270 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 19:02:39,270 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 19:02:39,271 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 19:02:39,271 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 19:02:39,271 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 19:02:39,271 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 19:02:39,271 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 19:02:39,272 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 19:02:39,272 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 19:02:39,272 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 19:02:39,272 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 19:02:39,272 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 19:02:39,273 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 19:02:39,273 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 19:02:39,273 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 19:02:39,273 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 19:02:39,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 19:02:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 19:02:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 19:02:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 19:02:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 19:02:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 19:02:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 19:02:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 19:02:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 19:02:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 19:02:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 19:02:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 19:02:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 19:02:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 19:02:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 19:02:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 19:02:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 19:02:39,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 19:02:39,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 19:02:39,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 19:02:39,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 19:02:39,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 19:02:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 19:02:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 19:02:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 19:02:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 19:02:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 19:02:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 19:02:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 19:02:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 19:02:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 19:02:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 19:02:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 19:02:39,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 19:02:39,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 19:02:39,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 19:02:39,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 19:02:39,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 19:02:39,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 19:02:39,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 19:02:39,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 19:02:39,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 19:02:39,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 19:02:39,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 19:02:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 19:02:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 19:02:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 19:02:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-20 19:02:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-20 19:02:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-20 19:02:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 19:02:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 19:02:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 19:02:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 19:02:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 19:02:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 19:02:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 19:02:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 19:02:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 19:02:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 19:02:39,898 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 19:02:40,307 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 19:02:40,826 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 19:02:40,826 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 19:02:40,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:02:40 BoogieIcfgContainer [2019-11-20 19:02:40,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 19:02:40,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 19:02:40,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 19:02:40,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 19:02:40,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:02:38" (1/3) ... [2019-11-20 19:02:40,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9970b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:02:40, skipping insertion in model container [2019-11-20 19:02:40,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:39" (2/3) ... [2019-11-20 19:02:40,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9970b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:02:40, skipping insertion in model container [2019-11-20 19:02:40,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:02:40" (3/3) ... [2019-11-20 19:02:40,836 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_2-2.i [2019-11-20 19:02:40,847 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 19:02:40,857 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-20 19:02:40,868 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-20 19:02:40,891 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 19:02:40,891 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 19:02:40,891 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 19:02:40,892 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 19:02:40,892 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 19:02:40,892 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 19:02:40,892 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 19:02:40,892 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 19:02:40,915 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2019-11-20 19:02:40,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 19:02:40,926 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:02:40,927 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] [2019-11-20 19:02:40,928 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]=== [2019-11-20 19:02:40,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:02:40,934 INFO L82 PathProgramCache]: Analyzing trace with hash 597436025, now seen corresponding path program 1 times [2019-11-20 19:02:40,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:02:40,948 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2003139905] [2019-11-20 19:02:40,948 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 [2019-11-20 19:02:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:02:41,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 19:02:41,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:02:41,360 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 [2019-11-20 19:02:41,362 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:02:41,371 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:02:41,371 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:02:41,372 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 19:02:41,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:02:41,423 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:02:41,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:02:41,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2003139905] [2019-11-20 19:02:41,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:02:41,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 19:02:41,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976639914] [2019-11-20 19:02:41,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 19:02:41,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:02:41,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 19:02:41,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 19:02:41,535 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 5 states. [2019-11-20 19:02:41,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:02:41,863 INFO L93 Difference]: Finished difference Result 93 states and 105 transitions. [2019-11-20 19:02:41,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 19:02:41,866 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 19:02:41,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:02:41,886 INFO L225 Difference]: With dead ends: 93 [2019-11-20 19:02:41,886 INFO L226 Difference]: Without dead ends: 90 [2019-11-20 19:02:41,888 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 [2019-11-20 19:02:41,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-20 19:02:41,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2019-11-20 19:02:41,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-20 19:02:41,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2019-11-20 19:02:41,971 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 22 [2019-11-20 19:02:41,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:02:41,973 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2019-11-20 19:02:41,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 19:02:41,973 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2019-11-20 19:02:41,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 19:02:41,976 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:02:41,976 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] [2019-11-20 19:02:42,179 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:02:42,181 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]=== [2019-11-20 19:02:42,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:02:42,182 INFO L82 PathProgramCache]: Analyzing trace with hash 597436026, now seen corresponding path program 1 times [2019-11-20 19:02:42,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:02:42,183 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1873603190] [2019-11-20 19:02:42,183 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 [2019-11-20 19:02:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:02:42,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 19:02:42,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:02:42,582 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 [2019-11-20 19:02:42,582 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:02:42,590 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:02:42,590 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:02:42,591 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 19:02:42,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:02:42,797 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:02:43,515 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:02:44,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:02:44,030 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1873603190] [2019-11-20 19:02:44,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:02:44,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 17 [2019-11-20 19:02:44,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557784030] [2019-11-20 19:02:44,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-20 19:02:44,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:02:44,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-20 19:02:44,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-11-20 19:02:44,033 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand 18 states. [2019-11-20 19:02:45,586 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2019-11-20 19:02:46,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:02:46,250 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2019-11-20 19:02:46,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-20 19:02:46,251 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2019-11-20 19:02:46,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:02:46,254 INFO L225 Difference]: With dead ends: 100 [2019-11-20 19:02:46,254 INFO L226 Difference]: Without dead ends: 100 [2019-11-20 19:02:46,255 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2019-11-20 19:02:46,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-11-20 19:02:46,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 91. [2019-11-20 19:02:46,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-20 19:02:46,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2019-11-20 19:02:46,271 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 22 [2019-11-20 19:02:46,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:02:46,271 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2019-11-20 19:02:46,271 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-20 19:02:46,271 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2019-11-20 19:02:46,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 19:02:46,272 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:02:46,272 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] [2019-11-20 19:02:46,473 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:02:46,474 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]=== [2019-11-20 19:02:46,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:02:46,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1484939706, now seen corresponding path program 1 times [2019-11-20 19:02:46,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:02:46,476 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1071998619] [2019-11-20 19:02:46,476 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 [2019-11-20 19:02:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:02:46,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 19:02:46,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:02:46,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:02:46,775 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:02:46,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:02:46,846 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1071998619] [2019-11-20 19:02:46,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:02:46,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 19:02:46,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676602806] [2019-11-20 19:02:46,848 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 19:02:46,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:02:46,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 19:02:46,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 19:02:46,849 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand 5 states. [2019-11-20 19:02:46,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:02:46,918 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2019-11-20 19:02:46,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 19:02:46,919 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 19:02:46,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:02:46,921 INFO L225 Difference]: With dead ends: 90 [2019-11-20 19:02:46,922 INFO L226 Difference]: Without dead ends: 90 [2019-11-20 19:02:46,923 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 [2019-11-20 19:02:46,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-20 19:02:46,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-11-20 19:02:46,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-20 19:02:46,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2019-11-20 19:02:46,942 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 22 [2019-11-20 19:02:46,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:02:46,943 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2019-11-20 19:02:46,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 19:02:46,944 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2019-11-20 19:02:46,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 19:02:46,946 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:02:46,948 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] [2019-11-20 19:02:47,159 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:02:47,161 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]=== [2019-11-20 19:02:47,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:02:47,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1341474425, now seen corresponding path program 1 times [2019-11-20 19:02:47,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:02:47,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [853376897] [2019-11-20 19:02:47,163 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 [2019-11-20 19:02:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:02:47,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 19:02:47,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:02:47,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:02:47,411 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:02:47,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:02:47,484 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [853376897] [2019-11-20 19:02:47,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:02:47,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 19:02:47,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586333013] [2019-11-20 19:02:47,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 19:02:47,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:02:47,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 19:02:47,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 19:02:47,486 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand 5 states. [2019-11-20 19:02:47,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:02:47,560 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2019-11-20 19:02:47,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 19:02:47,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-20 19:02:47,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:02:47,565 INFO L225 Difference]: With dead ends: 90 [2019-11-20 19:02:47,565 INFO L226 Difference]: Without dead ends: 90 [2019-11-20 19:02:47,566 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 [2019-11-20 19:02:47,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-20 19:02:47,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-11-20 19:02:47,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-20 19:02:47,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2019-11-20 19:02:47,573 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 23 [2019-11-20 19:02:47,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:02:47,573 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2019-11-20 19:02:47,573 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 19:02:47,574 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2019-11-20 19:02:47,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 19:02:47,574 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:02:47,575 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] [2019-11-20 19:02:47,775 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:02:47,776 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]=== [2019-11-20 19:02:47,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:02:47,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1210682536, now seen corresponding path program 1 times [2019-11-20 19:02:47,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:02:47,778 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [668689386] [2019-11-20 19:02:47,778 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 [2019-11-20 19:02:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:02:48,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 19:02:48,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:02:48,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:02:48,017 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:02:48,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:02:48,080 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [668689386] [2019-11-20 19:02:48,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:02:48,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 19:02:48,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392436443] [2019-11-20 19:02:48,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 19:02:48,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:02:48,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 19:02:48,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 19:02:48,082 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand 3 states. [2019-11-20 19:02:48,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:02:48,224 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2019-11-20 19:02:48,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 19:02:48,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-20 19:02:48,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:02:48,227 INFO L225 Difference]: With dead ends: 126 [2019-11-20 19:02:48,228 INFO L226 Difference]: Without dead ends: 121 [2019-11-20 19:02:48,228 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 [2019-11-20 19:02:48,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-20 19:02:48,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 86. [2019-11-20 19:02:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-20 19:02:48,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2019-11-20 19:02:48,236 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 23 [2019-11-20 19:02:48,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:02:48,236 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2019-11-20 19:02:48,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 19:02:48,236 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2019-11-20 19:02:48,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 19:02:48,237 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:02:48,237 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] [2019-11-20 19:02:48,440 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:02:48,441 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]=== [2019-11-20 19:02:48,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:02:48,442 INFO L82 PathProgramCache]: Analyzing trace with hash -343863878, now seen corresponding path program 1 times [2019-11-20 19:02:48,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:02:48,443 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1861285035] [2019-11-20 19:02:48,443 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 [2019-11-20 19:02:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:02:48,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-20 19:02:48,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:02:48,779 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 [2019-11-20 19:02:48,779 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:02:48,787 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:02:48,787 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:02:48,788 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 19:02:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:02:49,179 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:02:50,789 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:02:51,496 WARN L192 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-11-20 19:02:52,033 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:02:52,033 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1861285035] [2019-11-20 19:02:52,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 19:02:52,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2019-11-20 19:02:52,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128000346] [2019-11-20 19:02:52,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-20 19:02:52,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:02:52,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-20 19:02:52,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2019-11-20 19:02:52,035 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand 25 states. [2019-11-20 19:02:53,750 WARN L192 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2019-11-20 19:02:54,441 WARN L192 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2019-11-20 19:02:54,989 WARN L192 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2019-11-20 19:02:55,452 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 29 [2019-11-20 19:02:55,934 WARN L192 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-20 19:02:56,233 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-11-20 19:02:57,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:02:57,706 INFO L93 Difference]: Finished difference Result 103 states and 119 transitions. [2019-11-20 19:02:57,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-20 19:02:57,708 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 28 [2019-11-20 19:02:57,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:02:57,709 INFO L225 Difference]: With dead ends: 103 [2019-11-20 19:02:57,709 INFO L226 Difference]: Without dead ends: 103 [2019-11-20 19:02:57,711 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=258, Invalid=1074, Unknown=0, NotChecked=0, Total=1332 [2019-11-20 19:02:57,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-11-20 19:02:57,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98. [2019-11-20 19:02:57,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-20 19:02:57,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2019-11-20 19:02:57,719 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 28 [2019-11-20 19:02:57,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:02:57,719 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2019-11-20 19:02:57,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-20 19:02:57,720 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2019-11-20 19:02:57,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 19:02:57,721 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:02:57,721 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] [2019-11-20 19:02:57,924 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:02:57,927 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]=== [2019-11-20 19:02:57,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:02:57,928 INFO L82 PathProgramCache]: Analyzing trace with hash 2025519899, now seen corresponding path program 1 times [2019-11-20 19:02:57,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:02:57,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1150776451] [2019-11-20 19:02:57,929 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 [2019-11-20 19:02:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:02:58,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 19:02:58,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:02:58,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:02:58,322 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:02:58,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:02:58,527 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1150776451] [2019-11-20 19:02:58,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 19:02:58,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 14 [2019-11-20 19:02:58,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437095919] [2019-11-20 19:02:58,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 19:02:58,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:02:58,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 19:02:58,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-20 19:02:58,529 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 14 states. [2019-11-20 19:02:58,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:02:58,936 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2019-11-20 19:02:58,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 19:02:58,937 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 35 [2019-11-20 19:02:58,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:02:58,939 INFO L225 Difference]: With dead ends: 140 [2019-11-20 19:02:58,940 INFO L226 Difference]: Without dead ends: 137 [2019-11-20 19:02:58,940 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 [2019-11-20 19:02:58,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-20 19:02:58,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2019-11-20 19:02:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-11-20 19:02:58,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2019-11-20 19:02:58,948 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 35 [2019-11-20 19:02:58,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:02:58,949 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2019-11-20 19:02:58,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 19:02:58,949 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2019-11-20 19:02:58,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 19:02:58,950 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:02:58,950 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] [2019-11-20 19:02:59,153 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:02:59,154 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]=== [2019-11-20 19:02:59,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:02:59,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1928439432, now seen corresponding path program 1 times [2019-11-20 19:02:59,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:02:59,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [143700488] [2019-11-20 19:02:59,157 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 [2019-11-20 19:02:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:02:59,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 19:02:59,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:02:59,454 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 [2019-11-20 19:02:59,454 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:02:59,456 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:02:59,456 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:02:59,456 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 19:02:59,584 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:02:59,584 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 [2019-11-20 19:02:59,585 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:02:59,605 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 19:02:59,607 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. [2019-11-20 19:02:59,607 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-20 19:02:59,654 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 19:02:59,654 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:03:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:03:02,543 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [143700488] [2019-11-20 19:03:02,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 19:03:02,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-20 19:03:02,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367288259] [2019-11-20 19:03:02,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 19:03:02,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:03:02,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 19:03:02,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-11-20 19:03:02,544 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 8 states. [2019-11-20 19:03:23,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:03:23,872 INFO L93 Difference]: Finished difference Result 157 states and 182 transitions. [2019-11-20 19:03:23,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 19:03:23,873 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-20 19:03:23,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:03:23,875 INFO L225 Difference]: With dead ends: 157 [2019-11-20 19:03:23,875 INFO L226 Difference]: Without dead ends: 157 [2019-11-20 19:03:23,876 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=83, Invalid=378, Unknown=1, NotChecked=0, Total=462 [2019-11-20 19:03:23,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-20 19:03:23,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 105. [2019-11-20 19:03:23,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-20 19:03:23,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2019-11-20 19:03:23,883 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 35 [2019-11-20 19:03:23,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:03:23,884 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2019-11-20 19:03:23,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 19:03:23,884 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2019-11-20 19:03:23,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 19:03:23,886 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:03:23,886 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] [2019-11-20 19:03:24,086 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:03:24,088 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]=== [2019-11-20 19:03:24,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:03:24,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1928439431, now seen corresponding path program 1 times [2019-11-20 19:03:24,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:03:24,090 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1438317257] [2019-11-20 19:03:24,090 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 [2019-11-20 19:03:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:03:24,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 35 conjunts are in the unsatisfiable core [2019-11-20 19:03:24,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:03:24,444 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 [2019-11-20 19:03:24,445 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:03:24,460 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:03:24,464 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 [2019-11-20 19:03:24,464 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 19:03:24,471 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:03:24,472 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:03:24,472 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 19:03:27,005 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:03:27,006 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 [2019-11-20 19:03:27,007 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:03:27,047 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:03:27,054 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 [2019-11-20 19:03:27,054 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 19:03:27,073 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:03:27,074 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. [2019-11-20 19:03:27,075 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:37, output treesize:21 [2019-11-20 19:03:27,141 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:03:27,141 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:03:27,386 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:03:27,754 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:03:27,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:03:27,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:03:27,757 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:03:27,758 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:03:27,758 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:03:27,760 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:03:27,761 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:03:27,762 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:03:30,540 WARN L192 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-20 19:03:30,545 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:03:37,914 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_231|], 2=[|v_#length_186|]} [2019-11-20 19:03:37,920 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 19:03:37,921 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:03:37,922 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:03:37,923 INFO L464 ElimStorePlain]: Eliminatee |v_#length_186| vanished before elimination [2019-11-20 19:03:37,923 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:03:37,923 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:30, output treesize:1 [2019-11-20 19:03:37,925 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:03:38,541 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-20 19:03:38,560 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 [2019-11-20 19:03:38,561 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:03:38,584 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:03:38,588 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 19:03:38,589 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 19:03:38,609 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:03:38,609 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. [2019-11-20 19:03:38,611 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:34, output treesize:17 [2019-11-20 19:03:38,825 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:03:38,825 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1438317257] [2019-11-20 19:03:38,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 19:03:38,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 29 [2019-11-20 19:03:38,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563240718] [2019-11-20 19:03:38,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-20 19:03:38,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:03:38,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-20 19:03:38,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=777, Unknown=1, NotChecked=0, Total=870 [2019-11-20 19:03:38,827 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 30 states. [2019-11-20 19:04:46,152 WARN L192 SmtUtils]: Spent 21.85 s on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2019-11-20 19:05:24,740 WARN L192 SmtUtils]: Spent 31.16 s on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2019-11-20 19:05:31,204 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) (= (bvadd c_entry_point_~i~2 (_ bv4294967295 32)) (_ bv0 32)) (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 [2019-11-20 19:05:49,543 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-11-20 19:05:51,325 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2019-11-20 19:06:14,949 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-20 19:06:26,845 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-20 19:06:52,518 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-20 19:06:59,758 WARN L192 SmtUtils]: Spent 6.20 s on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2019-11-20 19:07:17,520 WARN L192 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-11-20 19:07:23,333 WARN L192 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 102 [2019-11-20 19:07:25,810 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2019-11-20 19:07:51,025 WARN L192 SmtUtils]: Spent 19.98 s on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-11-20 19:08:05,039 WARN L192 SmtUtils]: Spent 6.29 s on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-11-20 19:08:07,645 WARN L192 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2019-11-20 19:08:12,621 WARN L192 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-11-20 19:08:22,266 WARN L192 SmtUtils]: Spent 6.34 s on a formula simplification that was a NOOP. DAG size: 52 [2019-11-20 19:08:31,404 WARN L838 $PredicateComparison]: unable to prove that (and (or (bvsle (_ bv0 32) |c_alloc_17_#in~array.offset|) (forall ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_34|) (_ bv0 1))))) (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_alloc_17_#in~array.offset| (_ bv8 32)) (select (store |c_#length| v_prenex_13 v_ldv_malloc_~size_42) |c_alloc_17_#in~array.base|)))) (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 |c_alloc_17_#in~array.offset| (bvadd |c_alloc_17_#in~array.offset| (_ bv8 32))) (forall ((v_prenex_14 (_ BitVec 32))) (not (= (select |c_#valid| v_prenex_14) (_ bv0 1)))))) is different from false [2019-11-20 19:08:57,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:08:57,602 INFO L93 Difference]: Finished difference Result 437 states and 522 transitions. [2019-11-20 19:08:57,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-11-20 19:08:57,603 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 35 [2019-11-20 19:08:57,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:08:57,606 INFO L225 Difference]: With dead ends: 437 [2019-11-20 19:08:57,607 INFO L226 Difference]: Without dead ends: 437 [2019-11-20 19:08:57,609 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 956 ImplicationChecksByTransitivity, 155.9s TimeCoverageRelationStatistics Valid=476, Invalid=3946, Unknown=8, NotChecked=262, Total=4692 [2019-11-20 19:08:57,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2019-11-20 19:08:57,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 239. [2019-11-20 19:08:57,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-11-20 19:08:57,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 342 transitions. [2019-11-20 19:08:57,626 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 342 transitions. Word has length 35 [2019-11-20 19:08:57,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:08:57,626 INFO L462 AbstractCegarLoop]: Abstraction has 239 states and 342 transitions. [2019-11-20 19:08:57,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-11-20 19:08:57,627 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 342 transitions. [2019-11-20 19:08:57,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-20 19:08:57,628 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:08:57,628 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] [2019-11-20 19:08:57,836 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:08:57,841 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]=== [2019-11-20 19:08:57,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:08:57,842 INFO L82 PathProgramCache]: Analyzing trace with hash -2099434107, now seen corresponding path program 1 times [2019-11-20 19:08:57,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:08:57,843 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [567105909] [2019-11-20 19:08:57,843 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 [2019-11-20 19:08:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:08:58,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 19:08:58,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:08:58,106 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 19:08:58,107 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:08:58,145 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 19:08:58,145 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [567105909] [2019-11-20 19:08:58,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:08:58,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 19:08:58,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573222639] [2019-11-20 19:08:58,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 19:08:58,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:08:58,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 19:08:58,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 19:08:58,147 INFO L87 Difference]: Start difference. First operand 239 states and 342 transitions. Second operand 5 states. [2019-11-20 19:08:58,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:08:58,203 INFO L93 Difference]: Finished difference Result 250 states and 350 transitions. [2019-11-20 19:08:58,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 19:08:58,208 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-11-20 19:08:58,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:08:58,210 INFO L225 Difference]: With dead ends: 250 [2019-11-20 19:08:58,211 INFO L226 Difference]: Without dead ends: 250 [2019-11-20 19:08:58,212 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 [2019-11-20 19:08:58,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-11-20 19:08:58,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 229. [2019-11-20 19:08:58,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2019-11-20 19:08:58,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 320 transitions. [2019-11-20 19:08:58,225 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 320 transitions. Word has length 37 [2019-11-20 19:08:58,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:08:58,226 INFO L462 AbstractCegarLoop]: Abstraction has 229 states and 320 transitions. [2019-11-20 19:08:58,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 19:08:58,226 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 320 transitions. [2019-11-20 19:08:58,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-20 19:08:58,228 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:08:58,228 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] [2019-11-20 19:08:58,439 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:08:58,440 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]=== [2019-11-20 19:08:58,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:08:58,440 INFO L82 PathProgramCache]: Analyzing trace with hash -356623772, now seen corresponding path program 1 times [2019-11-20 19:08:58,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:08:58,441 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1200527715] [2019-11-20 19:08:58,441 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 [2019-11-20 19:08:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:08:58,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 19:08:58,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:08:58,742 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-20 19:08:58,742 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:08:58,785 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-20 19:08:58,785 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1200527715] [2019-11-20 19:08:58,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:08:58,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 19:08:58,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484702458] [2019-11-20 19:08:58,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 19:08:58,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:08:58,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 19:08:58,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 19:08:58,787 INFO L87 Difference]: Start difference. First operand 229 states and 320 transitions. Second operand 6 states. [2019-11-20 19:08:58,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:08:58,919 INFO L93 Difference]: Finished difference Result 251 states and 338 transitions. [2019-11-20 19:08:58,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 19:08:58,919 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-11-20 19:08:58,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:08:58,921 INFO L225 Difference]: With dead ends: 251 [2019-11-20 19:08:58,922 INFO L226 Difference]: Without dead ends: 251 [2019-11-20 19:08:58,922 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 [2019-11-20 19:08:58,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-11-20 19:08:58,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 218. [2019-11-20 19:08:58,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-11-20 19:08:58,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 301 transitions. [2019-11-20 19:08:58,933 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 301 transitions. Word has length 37 [2019-11-20 19:08:58,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:08:58,933 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 301 transitions. [2019-11-20 19:08:58,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 19:08:58,933 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 301 transitions. [2019-11-20 19:08:58,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-20 19:08:58,935 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:08:58,935 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] [2019-11-20 19:08:59,143 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:08:59,144 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]=== [2019-11-20 19:08:59,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:08:59,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1765265242, now seen corresponding path program 1 times [2019-11-20 19:08:59,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:08:59,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2024489167] [2019-11-20 19:08:59,145 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 [2019-11-20 19:08:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:08:59,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 19:08:59,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:08:59,503 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-20 19:08:59,504 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:08:59,552 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-20 19:08:59,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2024489167] [2019-11-20 19:08:59,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:08:59,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 19:08:59,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860013101] [2019-11-20 19:08:59,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 19:08:59,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:08:59,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 19:08:59,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 19:08:59,554 INFO L87 Difference]: Start difference. First operand 218 states and 301 transitions. Second operand 5 states. [2019-11-20 19:08:59,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:08:59,583 INFO L93 Difference]: Finished difference Result 195 states and 248 transitions. [2019-11-20 19:08:59,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 19:08:59,588 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2019-11-20 19:08:59,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:08:59,590 INFO L225 Difference]: With dead ends: 195 [2019-11-20 19:08:59,590 INFO L226 Difference]: Without dead ends: 195 [2019-11-20 19:08:59,590 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 [2019-11-20 19:08:59,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-11-20 19:08:59,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 191. [2019-11-20 19:08:59,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2019-11-20 19:08:59,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 244 transitions. [2019-11-20 19:08:59,599 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 244 transitions. Word has length 38 [2019-11-20 19:08:59,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:08:59,599 INFO L462 AbstractCegarLoop]: Abstraction has 191 states and 244 transitions. [2019-11-20 19:08:59,599 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 19:08:59,599 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 244 transitions. [2019-11-20 19:08:59,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-20 19:08:59,601 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:08:59,601 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-11-20 19:08:59,804 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:08:59,805 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]=== [2019-11-20 19:08:59,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:08:59,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1342913081, now seen corresponding path program 2 times [2019-11-20 19:08:59,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:08:59,807 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1099499757] [2019-11-20 19:08:59,807 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 [2019-11-20 19:09:00,147 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 19:09:00,147 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 19:09:00,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 38 conjunts are in the unsatisfiable core [2019-11-20 19:09:00,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:09:00,184 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 [2019-11-20 19:09:00,184 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:09:00,192 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:09:00,196 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 [2019-11-20 19:09:00,197 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 19:09:00,206 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:09:00,207 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:09:00,207 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 19:09:02,793 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 19:09:02,794 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 [2019-11-20 19:09:02,795 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:09:02,844 INFO L567 ElimStorePlain]: treesize reduction 3, result has 92.7 percent of original size [2019-11-20 19:09:02,857 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:09:02,857 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 13 treesize of output 17 [2019-11-20 19:09:02,858 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 19:09:02,888 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:09:02,889 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. [2019-11-20 19:09:02,889 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:21 [2019-11-20 19:09:02,951 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:09:02,951 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:09:03,223 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:09:05,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:09:05,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:09:05,569 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:09:05,569 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:09:05,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:09:05,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:09:05,572 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:09:05,573 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:09:14,198 WARN L192 SmtUtils]: Spent 5.44 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-20 19:09:14,203 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:09:21,704 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2019-11-20 19:09:22,248 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2019-11-20 19:09:22,842 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_277|], 2=[|v_#length_232|]} [2019-11-20 19:09:22,850 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 19:09:22,851 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:09:22,852 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:09:22,852 INFO L464 ElimStorePlain]: Eliminatee |v_#length_232| vanished before elimination [2019-11-20 19:09:22,852 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:09:22,853 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:30, output treesize:1 [2019-11-20 19:09:22,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:09:23,658 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-20 19:09:23,672 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 [2019-11-20 19:09:23,672 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:09:23,692 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:09:23,695 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 19:09:23,696 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 19:09:23,712 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:09:23,713 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. [2019-11-20 19:09:23,713 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:34, output treesize:17 [2019-11-20 19:09:23,918 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:09:23,918 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1099499757] [2019-11-20 19:09:23,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 19:09:23,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16] total 34 [2019-11-20 19:09:23,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468153928] [2019-11-20 19:09:23,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-11-20 19:09:23,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:09:23,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-11-20 19:09:23,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1040, Unknown=5, NotChecked=0, Total=1190 [2019-11-20 19:09:23,921 INFO L87 Difference]: Start difference. First operand 191 states and 244 transitions. Second operand 35 states. [2019-11-20 19:10:07,089 WARN L192 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 55 DAG size of output: 26 [2019-11-20 19:10:11,926 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 30 [2019-11-20 19:10:14,448 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 29 [2019-11-20 19:10:15,035 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 31 [2019-11-20 19:10:29,686 WARN L192 SmtUtils]: Spent 11.54 s on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2019-11-20 19:10:32,143 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 34 [2019-11-20 19:10:43,175 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-11-20 19:10:52,266 WARN L192 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-11-20 19:10:58,814 WARN L192 SmtUtils]: Spent 4.26 s on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-11-20 19:11:31,447 WARN L192 SmtUtils]: Spent 6.27 s on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-11-20 19:11:50,186 WARN L192 SmtUtils]: Spent 18.19 s on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2019-11-20 19:12:18,594 WARN L192 SmtUtils]: Spent 18.74 s on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2019-11-20 19:12:29,807 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-20 19:12:49,714 WARN L192 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 46 DAG size of output: 16 [2019-11-20 19:13:51,375 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 37 [2019-11-20 19:14:02,187 WARN L192 SmtUtils]: Spent 8.20 s on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2019-11-20 19:14:18,419 WARN L192 SmtUtils]: Spent 8.45 s on a formula simplification. DAG size of input: 65 DAG size of output: 36 [2019-11-20 19:14:25,815 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2019-11-20 19:14:30,787 WARN L192 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-11-20 19:15:29,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:15:29,008 INFO L93 Difference]: Finished difference Result 290 states and 365 transitions. [2019-11-20 19:15:29,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-20 19:15:29,009 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 41 [2019-11-20 19:15:29,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:15:29,011 INFO L225 Difference]: With dead ends: 290 [2019-11-20 19:15:29,011 INFO L226 Difference]: Without dead ends: 290 [2019-11-20 19:15:29,012 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 46 SyntacticMatches, 5 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1065 ImplicationChecksByTransitivity, 157.5s TimeCoverageRelationStatistics Valid=531, Invalid=4141, Unknown=20, NotChecked=0, Total=4692 [2019-11-20 19:15:29,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2019-11-20 19:15:29,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 208. [2019-11-20 19:15:29,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2019-11-20 19:15:29,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 267 transitions. [2019-11-20 19:15:29,022 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 267 transitions. Word has length 41 [2019-11-20 19:15:29,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:15:29,023 INFO L462 AbstractCegarLoop]: Abstraction has 208 states and 267 transitions. [2019-11-20 19:15:29,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-11-20 19:15:29,023 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 267 transitions. [2019-11-20 19:15:29,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-20 19:15:29,024 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:15:29,024 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] [2019-11-20 19:15:29,225 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:15:29,226 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]=== [2019-11-20 19:15:29,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:15:29,226 INFO L82 PathProgramCache]: Analyzing trace with hash 519015482, now seen corresponding path program 2 times [2019-11-20 19:15:29,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:15:29,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [423365807] [2019-11-20 19:15:29,228 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 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 [2019-11-20 19:15:29,572 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 19:15:29,572 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 19:15:29,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-20 19:15:29,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:15:29,620 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 [2019-11-20 19:15:29,620 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:15:29,626 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:15:29,626 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:15:29,627 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 19:15:30,482 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:15:30,482 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:15:32,067 WARN L192 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2019-11-20 19:15:32,855 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-20 19:15:33,292 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-20 19:15:33,831 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-20 19:15:34,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:15:35,638 WARN L192 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-11-20 19:15:36,369 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:15:36,370 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [423365807] [2019-11-20 19:15:36,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 19:15:36,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 33 [2019-11-20 19:15:36,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999224902] [2019-11-20 19:15:36,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-20 19:15:36,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:15:36,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-20 19:15:36,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=920, Unknown=0, NotChecked=0, Total=1122 [2019-11-20 19:15:36,372 INFO L87 Difference]: Start difference. First operand 208 states and 267 transitions. Second operand 34 states. [2019-11-20 19:15:37,611 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-20 19:15:38,299 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-20 19:15:39,049 WARN L192 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2019-11-20 19:15:39,993 WARN L192 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-11-20 19:15:41,156 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2019-11-20 19:15:41,730 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2019-11-20 19:15:42,290 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-11-20 19:15:45,276 WARN L192 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 103 DAG size of output: 80 [2019-11-20 19:15:47,120 WARN L192 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 99 DAG size of output: 29 [2019-11-20 19:15:49,645 WARN L192 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 89 DAG size of output: 69 [2019-11-20 19:15:51,418 WARN L192 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 29 [2019-11-20 19:15:53,607 WARN L192 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2019-11-20 19:15:55,277 WARN L192 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 29 [2019-11-20 19:15:57,314 WARN L192 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2019-11-20 19:15:58,607 WARN L192 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 29 [2019-11-20 19:16:00,219 WARN L192 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2019-11-20 19:16:01,334 WARN L192 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 29 [2019-11-20 19:16:02,150 WARN L192 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-20 19:16:03,606 WARN L192 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2019-11-20 19:16:04,223 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-11-20 19:16:05,938 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2019-11-20 19:16:08,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:16:08,450 INFO L93 Difference]: Finished difference Result 243 states and 347 transitions. [2019-11-20 19:16:08,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-11-20 19:16:08,453 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 40 [2019-11-20 19:16:08,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:16:08,455 INFO L225 Difference]: With dead ends: 243 [2019-11-20 19:16:08,455 INFO L226 Difference]: Without dead ends: 243 [2019-11-20 19:16:08,456 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 934 ImplicationChecksByTransitivity, 31.5s TimeCoverageRelationStatistics Valid=890, Invalid=3016, Unknown=0, NotChecked=0, Total=3906 [2019-11-20 19:16:08,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-11-20 19:16:08,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 232. [2019-11-20 19:16:08,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2019-11-20 19:16:08,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 299 transitions. [2019-11-20 19:16:08,468 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 299 transitions. Word has length 40 [2019-11-20 19:16:08,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:16:08,472 INFO L462 AbstractCegarLoop]: Abstraction has 232 states and 299 transitions. [2019-11-20 19:16:08,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-20 19:16:08,472 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 299 transitions. [2019-11-20 19:16:08,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-20 19:16:08,473 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:16:08,473 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] [2019-11-20 19:16:08,676 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:16:08,677 INFO L410 AbstractCegarLoop]: === Iteration 15 === [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]=== [2019-11-20 19:16:08,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:16:08,678 INFO L82 PathProgramCache]: Analyzing trace with hash -725997882, now seen corresponding path program 1 times [2019-11-20 19:16:08,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:16:08,678 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [524776881] [2019-11-20 19:16:08,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:16:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:16:08,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 19:16:08,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:16:09,001 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 [2019-11-20 19:16:09,001 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:16:09,005 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:16:09,005 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:16:09,005 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 19:16:09,055 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 19:16:09,055 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:16:09,324 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:16:09,325 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 19:16:09,331 INFO L168 Benchmark]: Toolchain (without parser) took 811142.16 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 239.1 MB). Free memory was 951.0 MB in the beginning and 840.3 MB in the end (delta: 110.6 MB). Peak memory consumption was 349.7 MB. Max. memory is 11.5 GB. [2019-11-20 19:16:09,331 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 19:16:09,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 830.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-20 19:16:09,332 INFO L168 Benchmark]: Boogie Preprocessor took 152.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-20 19:16:09,332 INFO L168 Benchmark]: RCFGBuilder took 1655.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.8 MB in the end (delta: 118.8 MB). Peak memory consumption was 118.8 MB. Max. memory is 11.5 GB. [2019-11-20 19:16:09,332 INFO L168 Benchmark]: TraceAbstraction took 808499.64 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 103.3 MB). Free memory was 966.8 MB in the beginning and 840.3 MB in the end (delta: 126.5 MB). Peak memory consumption was 229.7 MB. Max. memory is 11.5 GB. [2019-11-20 19:16:09,334 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 830.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 152.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1655.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.8 MB in the end (delta: 118.8 MB). Peak memory consumption was 118.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 808499.64 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 103.3 MB). Free memory was 966.8 MB in the beginning and 840.3 MB in the end (delta: 126.5 MB). Peak memory consumption was 229.7 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...