./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 34ebb1e4 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9181148b15e14afa3f85d7f56edfe966974a0845 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-34ebb1e [2019-11-21 15:44:29,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 15:44:29,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 15:44:29,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 15:44:29,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 15:44:29,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 15:44:29,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 15:44:29,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 15:44:29,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 15:44:29,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 15:44:29,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 15:44:29,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 15:44:29,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 15:44:29,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 15:44:29,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 15:44:29,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 15:44:29,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 15:44:29,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 15:44:29,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 15:44:29,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 15:44:29,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 15:44:29,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 15:44:29,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 15:44:29,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 15:44:29,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 15:44:29,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 15:44:29,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 15:44:29,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 15:44:29,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 15:44:29,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 15:44:29,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 15:44:29,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 15:44:29,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 15:44:29,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 15:44:29,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 15:44:29,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 15:44:29,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 15:44:29,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 15:44:29,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 15:44:29,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 15:44:29,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 15:44:29,123 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 15:44:29,158 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 15:44:29,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 15:44:29,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 15:44:29,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 15:44:29,165 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 15:44:29,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 15:44:29,168 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 15:44:29,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 15:44:29,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 15:44:29,169 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 15:44:29,169 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 15:44:29,169 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 15:44:29,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 15:44:29,170 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 15:44:29,170 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 15:44:29,170 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 15:44:29,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 15:44:29,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 15:44:29,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 15:44:29,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 15:44:29,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 15:44:29,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 15:44:29,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 15:44:29,174 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 15:44:29,174 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 15:44:29,174 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 15:44:29,174 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 -> 9181148b15e14afa3f85d7f56edfe966974a0845 [2019-11-21 15:44:29,543 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 15:44:29,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 15:44:29,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 15:44:29,574 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 15:44:29,574 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 15:44:29,575 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2019-11-21 15:44:29,644 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/babaeeb64/5abb04660b5f4aeba1695e259e1aff67/FLAG942465ce1 [2019-11-21 15:44:30,193 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 15:44:30,194 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2019-11-21 15:44:30,217 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/babaeeb64/5abb04660b5f4aeba1695e259e1aff67/FLAG942465ce1 [2019-11-21 15:44:30,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/babaeeb64/5abb04660b5f4aeba1695e259e1aff67 [2019-11-21 15:44:30,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 15:44:30,505 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 15:44:30,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 15:44:30,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 15:44:30,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 15:44:30,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 03:44:30" (1/1) ... [2019-11-21 15:44:30,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2c50b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:44:30, skipping insertion in model container [2019-11-21 15:44:30,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 03:44:30" (1/1) ... [2019-11-21 15:44:30,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 15:44:30,581 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 15:44:31,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 15:44:31,104 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 15:44:31,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 15:44:31,253 INFO L205 MainTranslator]: Completed translation [2019-11-21 15:44:31,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:44:31 WrapperNode [2019-11-21 15:44:31,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 15:44:31,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 15:44:31,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 15:44:31,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 15:44:31,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:44:31" (1/1) ... [2019-11-21 15:44:31,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:44:31" (1/1) ... [2019-11-21 15:44:31,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:44:31" (1/1) ... [2019-11-21 15:44:31,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:44:31" (1/1) ... [2019-11-21 15:44:31,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:44:31" (1/1) ... [2019-11-21 15:44:31,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:44:31" (1/1) ... [2019-11-21 15:44:31,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:44:31" (1/1) ... [2019-11-21 15:44:31,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 15:44:31,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 15:44:31,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 15:44:31,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 15:44:31,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:44:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 15:44:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 15:44:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 15:44:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 15:44:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 15:44:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 15:44:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 15:44:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 15:44:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 15:44:31,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 15:44:31,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 15:44:31,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 15:44:31,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 15:44:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 15:44:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 15:44:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 15:44:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 15:44:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 15:44:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 15:44:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 15:44:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 15:44:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 15:44:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 15:44:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 15:44:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 15:44:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 15:44:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 15:44:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 15:44:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 15:44:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 15:44:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 15:44:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 15:44:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 15:44:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 15:44:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 15:44:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 15:44:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 15:44:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 15:44:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 15:44:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 15:44:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 15:44:31,434 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 15:44:31,434 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 15:44:31,434 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 15:44:31,434 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 15:44:31,434 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 15:44:31,435 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 15:44:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 15:44:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 15:44:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 15:44:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 15:44:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 15:44:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 15:44:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 15:44:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 15:44:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 15:44:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 15:44:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 15:44:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 15:44:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 15:44:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 15:44:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 15:44:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 15:44:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 15:44:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 15:44:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 15:44:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 15:44:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 15:44:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 15:44:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 15:44:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 15:44:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 15:44:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 15:44:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 15:44:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 15:44:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 15:44:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 15:44:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 15:44:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 15:44:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 15:44:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 15:44:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 15:44:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 15:44:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 15:44:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 15:44:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 15:44:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 15:44:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 15:44:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 15:44:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 15:44:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 15:44:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 15:44:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 15:44:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 15:44:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 15:44:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 15:44:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 15:44:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 15:44:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 15:44:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 15:44:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 15:44:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 15:44:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 15:44:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 15:44:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 15:44:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 15:44:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 15:44:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 15:44:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 15:44:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 15:44:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 15:44:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 15:44:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 15:44:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 15:44:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 15:44:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 15:44:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 15:44:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 15:44:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 15:44:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 15:44:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 15:44:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 15:44:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 15:44:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 15:44:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 15:44:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 15:44:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 15:44:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 15:44:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 15:44:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 15:44:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 15:44:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 15:44:31,452 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 15:44:31,452 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 15:44:31,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 15:44:31,452 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 15:44:31,452 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 15:44:31,453 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 15:44:31,453 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 15:44:31,453 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 15:44:31,453 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 15:44:31,453 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 15:44:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 15:44:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 15:44:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 15:44:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 15:44:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 15:44:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 15:44:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 15:44:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 15:44:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 15:44:31,456 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 15:44:31,456 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 15:44:31,456 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 15:44:31,456 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 15:44:31,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 15:44:31,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 15:44:31,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 15:44:31,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 15:44:31,457 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 15:44:31,457 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 15:44:31,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 15:44:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 15:44:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 15:44:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 15:44:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 15:44:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 15:44:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 15:44:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 15:44:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 15:44:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 15:44:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 15:44:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 15:44:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 15:44:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 15:44:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 15:44:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 15:44:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 15:44:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 15:44:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 15:44:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 15:44:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 15:44:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 15:44:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 15:44:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 15:44:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 15:44:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 15:44:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 15:44:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 15:44:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 15:44:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 15:44:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 15:44:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 15:44:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 15:44:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 15:44:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 15:44:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 15:44:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 15:44:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 15:44:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 15:44:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 15:44:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 15:44:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 15:44:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 15:44:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 15:44:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 15:44:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 15:44:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 15:44:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 15:44:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 15:44:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 15:44:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 15:44:32,058 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 15:44:32,415 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 15:44:32,769 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 15:44:32,770 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 15:44:32,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 03:44:32 BoogieIcfgContainer [2019-11-21 15:44:32,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 15:44:32,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 15:44:32,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 15:44:32,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 15:44:32,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 03:44:30" (1/3) ... [2019-11-21 15:44:32,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b11a8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 03:44:32, skipping insertion in model container [2019-11-21 15:44:32,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:44:31" (2/3) ... [2019-11-21 15:44:32,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b11a8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 03:44:32, skipping insertion in model container [2019-11-21 15:44:32,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 03:44:32" (3/3) ... [2019-11-21 15:44:32,781 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test22_1-1.i [2019-11-21 15:44:32,791 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 15:44:32,800 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2019-11-21 15:44:32,812 INFO L249 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2019-11-21 15:44:32,835 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 15:44:32,836 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 15:44:32,836 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 15:44:32,836 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 15:44:32,836 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 15:44:32,837 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 15:44:32,837 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 15:44:32,837 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 15:44:32,858 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2019-11-21 15:44:32,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 15:44:32,868 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:32,869 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:44:32,870 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:32,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:32,876 INFO L82 PathProgramCache]: Analyzing trace with hash 437307378, now seen corresponding path program 1 times [2019-11-21 15:44:32,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:32,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1690922020] [2019-11-21 15:44:32,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:33,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 15:44:33,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:33,325 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 15:44:33,326 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:33,337 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:33,338 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:44:33,338 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 15:44:33,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:33,382 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:33,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:33,458 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1690922020] [2019-11-21 15:44:33,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:44:33,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 15:44:33,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128766436] [2019-11-21 15:44:33,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 15:44:33,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:33,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 15:44:33,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:44:33,488 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 5 states. [2019-11-21 15:44:33,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:33,890 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2019-11-21 15:44:33,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 15:44:33,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 15:44:33,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:33,908 INFO L225 Difference]: With dead ends: 156 [2019-11-21 15:44:33,908 INFO L226 Difference]: Without dead ends: 153 [2019-11-21 15:44:33,910 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:44:33,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-21 15:44:33,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 147. [2019-11-21 15:44:33,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-11-21 15:44:33,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2019-11-21 15:44:33,968 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 17 [2019-11-21 15:44:33,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:33,968 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2019-11-21 15:44:33,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 15:44:33,968 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2019-11-21 15:44:33,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 15:44:33,969 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:33,970 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:44:34,174 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:34,175 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:34,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:34,176 INFO L82 PathProgramCache]: Analyzing trace with hash 437307379, now seen corresponding path program 1 times [2019-11-21 15:44:34,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:34,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1229633931] [2019-11-21 15:44:34,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:34,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-21 15:44:34,479 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:34,500 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 15:44:34,500 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:34,508 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:34,508 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:44:34,509 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 15:44:34,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:34,560 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:34,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:34,871 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1229633931] [2019-11-21 15:44:34,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:44:34,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-21 15:44:34,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624434840] [2019-11-21 15:44:34,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 15:44:34,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:34,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 15:44:34,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-21 15:44:34,874 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand 10 states. [2019-11-21 15:44:35,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:35,589 INFO L93 Difference]: Finished difference Result 152 states and 163 transitions. [2019-11-21 15:44:35,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 15:44:35,597 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-21 15:44:35,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:35,603 INFO L225 Difference]: With dead ends: 152 [2019-11-21 15:44:35,604 INFO L226 Difference]: Without dead ends: 152 [2019-11-21 15:44:35,607 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-21 15:44:35,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-21 15:44:35,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2019-11-21 15:44:35,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-11-21 15:44:35,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 157 transitions. [2019-11-21 15:44:35,637 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 157 transitions. Word has length 17 [2019-11-21 15:44:35,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:35,637 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 157 transitions. [2019-11-21 15:44:35,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 15:44:35,637 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2019-11-21 15:44:35,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 15:44:35,639 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:35,639 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:44:35,852 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:35,853 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:35,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:35,853 INFO L82 PathProgramCache]: Analyzing trace with hash 465936529, now seen corresponding path program 1 times [2019-11-21 15:44:35,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:35,854 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1825866291] [2019-11-21 15:44:35,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:36,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 15:44:36,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:36,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:36,183 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:36,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:36,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1825866291] [2019-11-21 15:44:36,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:44:36,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 15:44:36,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001382062] [2019-11-21 15:44:36,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 15:44:36,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:36,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 15:44:36,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:44:36,221 INFO L87 Difference]: Start difference. First operand 147 states and 157 transitions. Second operand 5 states. [2019-11-21 15:44:36,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:36,252 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2019-11-21 15:44:36,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 15:44:36,253 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 15:44:36,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:36,256 INFO L225 Difference]: With dead ends: 146 [2019-11-21 15:44:36,258 INFO L226 Difference]: Without dead ends: 146 [2019-11-21 15:44:36,259 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:44:36,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-11-21 15:44:36,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2019-11-21 15:44:36,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-21 15:44:36,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2019-11-21 15:44:36,279 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 17 [2019-11-21 15:44:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:36,279 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 152 transitions. [2019-11-21 15:44:36,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 15:44:36,279 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 152 transitions. [2019-11-21 15:44:36,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-21 15:44:36,281 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:36,281 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] [2019-11-21 15:44:36,485 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:36,486 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:36,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:36,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1350751080, now seen corresponding path program 1 times [2019-11-21 15:44:36,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:36,487 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1128612294] [2019-11-21 15:44:36,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:36,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 15:44:36,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:36,777 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:36,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:36,866 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1128612294] [2019-11-21 15:44:36,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:44:36,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 15:44:36,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740169640] [2019-11-21 15:44:36,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 15:44:36,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:36,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 15:44:36,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:44:36,870 INFO L87 Difference]: Start difference. First operand 144 states and 152 transitions. Second operand 5 states. [2019-11-21 15:44:36,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:36,900 INFO L93 Difference]: Finished difference Result 146 states and 153 transitions. [2019-11-21 15:44:36,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 15:44:36,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-21 15:44:36,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:36,905 INFO L225 Difference]: With dead ends: 146 [2019-11-21 15:44:36,905 INFO L226 Difference]: Without dead ends: 146 [2019-11-21 15:44:36,906 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:44:36,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-11-21 15:44:36,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2019-11-21 15:44:36,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-21 15:44:36,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 151 transitions. [2019-11-21 15:44:36,930 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 151 transitions. Word has length 27 [2019-11-21 15:44:36,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:36,931 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 151 transitions. [2019-11-21 15:44:36,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 15:44:36,931 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 151 transitions. [2019-11-21 15:44:36,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-21 15:44:36,934 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:36,934 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] [2019-11-21 15:44:37,137 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:37,137 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:37,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:37,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1861285257, now seen corresponding path program 1 times [2019-11-21 15:44:37,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:37,138 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2203432] [2019-11-21 15:44:37,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:37,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-21 15:44:37,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:37,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:37,460 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:37,534 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2203432] [2019-11-21 15:44:37,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:44:37,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-11-21 15:44:37,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875328104] [2019-11-21 15:44:37,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 15:44:37,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:37,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 15:44:37,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-21 15:44:37,538 INFO L87 Difference]: Start difference. First operand 144 states and 151 transitions. Second operand 7 states. [2019-11-21 15:44:37,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:37,601 INFO L93 Difference]: Finished difference Result 160 states and 168 transitions. [2019-11-21 15:44:37,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-21 15:44:37,605 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-11-21 15:44:37,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:37,607 INFO L225 Difference]: With dead ends: 160 [2019-11-21 15:44:37,607 INFO L226 Difference]: Without dead ends: 160 [2019-11-21 15:44:37,608 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-21 15:44:37,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-11-21 15:44:37,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 153. [2019-11-21 15:44:37,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-21 15:44:37,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 160 transitions. [2019-11-21 15:44:37,616 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 160 transitions. Word has length 27 [2019-11-21 15:44:37,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:37,616 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 160 transitions. [2019-11-21 15:44:37,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 15:44:37,617 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 160 transitions. [2019-11-21 15:44:37,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-21 15:44:37,618 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:37,618 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] [2019-11-21 15:44:37,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:37,822 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:37,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:37,823 INFO L82 PathProgramCache]: Analyzing trace with hash -371919445, now seen corresponding path program 1 times [2019-11-21 15:44:37,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:37,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2037905806] [2019-11-21 15:44:37,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:38,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 15:44:38,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:38,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:38,116 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:38,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:38,195 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2037905806] [2019-11-21 15:44:38,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:44:38,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 15:44:38,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177522090] [2019-11-21 15:44:38,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 15:44:38,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:38,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 15:44:38,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-21 15:44:38,199 INFO L87 Difference]: Start difference. First operand 153 states and 160 transitions. Second operand 6 states. [2019-11-21 15:44:38,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:38,263 INFO L93 Difference]: Finished difference Result 159 states and 166 transitions. [2019-11-21 15:44:38,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 15:44:38,263 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-21 15:44:38,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:38,265 INFO L225 Difference]: With dead ends: 159 [2019-11-21 15:44:38,265 INFO L226 Difference]: Without dead ends: 155 [2019-11-21 15:44:38,265 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-21 15:44:38,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-11-21 15:44:38,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2019-11-21 15:44:38,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-11-21 15:44:38,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 162 transitions. [2019-11-21 15:44:38,273 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 162 transitions. Word has length 32 [2019-11-21 15:44:38,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:38,273 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 162 transitions. [2019-11-21 15:44:38,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 15:44:38,273 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 162 transitions. [2019-11-21 15:44:38,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-21 15:44:38,274 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:38,275 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-21 15:44:38,479 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:38,481 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:38,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:38,481 INFO L82 PathProgramCache]: Analyzing trace with hash -2114850165, now seen corresponding path program 1 times [2019-11-21 15:44:38,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:38,482 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1356258204] [2019-11-21 15:44:38,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:38,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 15:44:38,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:38,826 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:38,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:38,964 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1356258204] [2019-11-21 15:44:38,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 15:44:38,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-21 15:44:38,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886818015] [2019-11-21 15:44:38,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 15:44:38,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:38,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 15:44:38,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-21 15:44:38,965 INFO L87 Difference]: Start difference. First operand 155 states and 162 transitions. Second operand 10 states. [2019-11-21 15:44:39,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:39,232 INFO L93 Difference]: Finished difference Result 163 states and 172 transitions. [2019-11-21 15:44:39,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 15:44:39,233 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-11-21 15:44:39,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:39,234 INFO L225 Difference]: With dead ends: 163 [2019-11-21 15:44:39,234 INFO L226 Difference]: Without dead ends: 159 [2019-11-21 15:44:39,235 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2019-11-21 15:44:39,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-11-21 15:44:39,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2019-11-21 15:44:39,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-11-21 15:44:39,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 166 transitions. [2019-11-21 15:44:39,243 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 166 transitions. Word has length 34 [2019-11-21 15:44:39,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:39,244 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 166 transitions. [2019-11-21 15:44:39,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 15:44:39,244 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 166 transitions. [2019-11-21 15:44:39,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-21 15:44:39,245 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:39,246 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, 1] [2019-11-21 15:44:39,453 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:39,453 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:39,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:39,454 INFO L82 PathProgramCache]: Analyzing trace with hash 349418536, now seen corresponding path program 1 times [2019-11-21 15:44:39,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:39,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1063943400] [2019-11-21 15:44:39,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:39,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-21 15:44:39,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:39,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:39,837 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:39,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:39,925 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1063943400] [2019-11-21 15:44:39,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:44:39,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-11-21 15:44:39,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461935797] [2019-11-21 15:44:39,927 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 15:44:39,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:39,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 15:44:39,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-21 15:44:39,929 INFO L87 Difference]: Start difference. First operand 159 states and 166 transitions. Second operand 7 states. [2019-11-21 15:44:39,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:39,993 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2019-11-21 15:44:39,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-21 15:44:39,994 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2019-11-21 15:44:39,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:39,995 INFO L225 Difference]: With dead ends: 169 [2019-11-21 15:44:39,995 INFO L226 Difference]: Without dead ends: 169 [2019-11-21 15:44:39,996 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-21 15:44:39,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2019-11-21 15:44:40,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165. [2019-11-21 15:44:40,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2019-11-21 15:44:40,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 172 transitions. [2019-11-21 15:44:40,008 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 172 transitions. Word has length 36 [2019-11-21 15:44:40,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:40,009 INFO L462 AbstractCegarLoop]: Abstraction has 165 states and 172 transitions. [2019-11-21 15:44:40,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 15:44:40,009 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 172 transitions. [2019-11-21 15:44:40,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-21 15:44:40,020 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:40,020 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] [2019-11-21 15:44:40,233 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:40,234 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:40,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:40,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1191975232, now seen corresponding path program 1 times [2019-11-21 15:44:40,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:40,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1862460951] [2019-11-21 15:44:40,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:40,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-21 15:44:40,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:40,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:40,479 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:40,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:40,636 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1862460951] [2019-11-21 15:44:40,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:44:40,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 15:44:40,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365203051] [2019-11-21 15:44:40,637 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 15:44:40,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:40,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 15:44:40,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 15:44:40,640 INFO L87 Difference]: Start difference. First operand 165 states and 172 transitions. Second operand 3 states. [2019-11-21 15:44:40,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:40,857 INFO L93 Difference]: Finished difference Result 176 states and 182 transitions. [2019-11-21 15:44:40,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 15:44:40,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-11-21 15:44:40,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:40,859 INFO L225 Difference]: With dead ends: 176 [2019-11-21 15:44:40,859 INFO L226 Difference]: Without dead ends: 154 [2019-11-21 15:44:40,860 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 15:44:40,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-11-21 15:44:40,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 146. [2019-11-21 15:44:40,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-11-21 15:44:40,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 152 transitions. [2019-11-21 15:44:40,872 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 152 transitions. Word has length 34 [2019-11-21 15:44:40,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:40,872 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 152 transitions. [2019-11-21 15:44:40,872 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 15:44:40,873 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 152 transitions. [2019-11-21 15:44:40,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-21 15:44:40,876 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:40,876 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:44:41,077 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:41,078 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:41,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:41,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1672035253, now seen corresponding path program 2 times [2019-11-21 15:44:41,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:41,079 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [491270266] [2019-11-21 15:44:41,079 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 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:41,353 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 15:44:41,353 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 15:44:41,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 15:44:41,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:41,365 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 15:44:41,365 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:41,367 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:41,367 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:44:41,367 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 15:44:41,526 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-21 15:44:41,527 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:41,608 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-21 15:44:41,608 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [491270266] [2019-11-21 15:44:41,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:44:41,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 12 [2019-11-21 15:44:41,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223979772] [2019-11-21 15:44:41,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 15:44:41,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:41,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 15:44:41,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 15:44:41,610 INFO L87 Difference]: Start difference. First operand 146 states and 152 transitions. Second operand 13 states. [2019-11-21 15:44:42,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:42,930 INFO L93 Difference]: Finished difference Result 157 states and 162 transitions. [2019-11-21 15:44:42,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 15:44:42,930 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2019-11-21 15:44:42,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:42,932 INFO L225 Difference]: With dead ends: 157 [2019-11-21 15:44:42,932 INFO L226 Difference]: Without dead ends: 157 [2019-11-21 15:44:42,932 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-11-21 15:44:42,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-21 15:44:42,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 145. [2019-11-21 15:44:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-11-21 15:44:42,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 151 transitions. [2019-11-21 15:44:42,938 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 151 transitions. Word has length 38 [2019-11-21 15:44:42,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:42,939 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 151 transitions. [2019-11-21 15:44:42,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 15:44:42,939 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 151 transitions. [2019-11-21 15:44:42,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-21 15:44:42,940 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:42,940 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:44:43,144 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:43,145 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:43,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:43,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1672035252, now seen corresponding path program 1 times [2019-11-21 15:44:43,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:43,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1371015159] [2019-11-21 15:44:43,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:43,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 15:44:43,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:43,580 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:43,580 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:43,908 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:43,909 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1371015159] [2019-11-21 15:44:43,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 15:44:43,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-11-21 15:44:43,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704532264] [2019-11-21 15:44:43,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-21 15:44:43,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:43,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-21 15:44:43,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-11-21 15:44:43,910 INFO L87 Difference]: Start difference. First operand 145 states and 151 transitions. Second operand 18 states. [2019-11-21 15:44:44,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:44,980 INFO L93 Difference]: Finished difference Result 157 states and 169 transitions. [2019-11-21 15:44:44,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-21 15:44:44,982 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2019-11-21 15:44:44,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:44,983 INFO L225 Difference]: With dead ends: 157 [2019-11-21 15:44:44,983 INFO L226 Difference]: Without dead ends: 153 [2019-11-21 15:44:44,984 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2019-11-21 15:44:44,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-21 15:44:44,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-11-21 15:44:44,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-21 15:44:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 159 transitions. [2019-11-21 15:44:44,991 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 159 transitions. Word has length 38 [2019-11-21 15:44:44,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:44,991 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 159 transitions. [2019-11-21 15:44:44,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-21 15:44:44,991 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 159 transitions. [2019-11-21 15:44:44,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-21 15:44:44,992 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:44,993 INFO L410 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:44:45,196 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:45,197 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:45,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:45,198 INFO L82 PathProgramCache]: Analyzing trace with hash -120338484, now seen corresponding path program 2 times [2019-11-21 15:44:45,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:45,199 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [279025203] [2019-11-21 15:44:45,200 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 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:45,511 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 15:44:45,511 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 15:44:45,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-21 15:44:45,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:45,532 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 15:44:45,532 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:45,543 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:45,544 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:44:45,544 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 15:44:45,816 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-21 15:44:45,816 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:46,694 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-21 15:44:46,694 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [279025203] [2019-11-21 15:44:46,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:44:46,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-21 15:44:46,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518703863] [2019-11-21 15:44:46,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-21 15:44:46,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:46,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-21 15:44:46,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-21 15:44:46,696 INFO L87 Difference]: Start difference. First operand 153 states and 159 transitions. Second operand 23 states. [2019-11-21 15:44:49,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:49,419 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2019-11-21 15:44:49,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 15:44:49,419 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 46 [2019-11-21 15:44:49,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:49,421 INFO L225 Difference]: With dead ends: 152 [2019-11-21 15:44:49,421 INFO L226 Difference]: Without dead ends: 152 [2019-11-21 15:44:49,422 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-21 15:44:49,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-21 15:44:49,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2019-11-21 15:44:49,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-21 15:44:49,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 158 transitions. [2019-11-21 15:44:49,427 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 158 transitions. Word has length 46 [2019-11-21 15:44:49,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:49,428 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 158 transitions. [2019-11-21 15:44:49,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-21 15:44:49,428 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2019-11-21 15:44:49,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-21 15:44:49,429 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:49,429 INFO L410 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:44:49,631 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:49,634 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:49,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:49,635 INFO L82 PathProgramCache]: Analyzing trace with hash -2099111874, now seen corresponding path program 1 times [2019-11-21 15:44:49,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:49,636 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [154576453] [2019-11-21 15:44:49,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:49,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-21 15:44:50,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:50,226 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:50,226 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:50,361 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-21 15:44:51,303 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:44:51,303 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [154576453] [2019-11-21 15:44:51,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 15:44:51,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2019-11-21 15:44:51,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824840568] [2019-11-21 15:44:51,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-21 15:44:51,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:51,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-21 15:44:51,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=802, Unknown=0, NotChecked=0, Total=1122 [2019-11-21 15:44:51,307 INFO L87 Difference]: Start difference. First operand 152 states and 158 transitions. Second operand 34 states. [2019-11-21 15:44:55,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:55,705 INFO L93 Difference]: Finished difference Result 170 states and 188 transitions. [2019-11-21 15:44:55,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-21 15:44:55,706 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 51 [2019-11-21 15:44:55,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:55,707 INFO L225 Difference]: With dead ends: 170 [2019-11-21 15:44:55,707 INFO L226 Difference]: Without dead ends: 166 [2019-11-21 15:44:55,708 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=736, Invalid=1426, Unknown=0, NotChecked=0, Total=2162 [2019-11-21 15:44:55,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-11-21 15:44:55,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2019-11-21 15:44:55,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2019-11-21 15:44:55,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 172 transitions. [2019-11-21 15:44:55,714 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 172 transitions. Word has length 51 [2019-11-21 15:44:55,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:55,714 INFO L462 AbstractCegarLoop]: Abstraction has 166 states and 172 transitions. [2019-11-21 15:44:55,714 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-21 15:44:55,714 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 172 transitions. [2019-11-21 15:44:55,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-21 15:44:55,715 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:55,716 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:44:55,919 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:55,920 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:55,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:55,920 INFO L82 PathProgramCache]: Analyzing trace with hash 490263070, now seen corresponding path program 2 times [2019-11-21 15:44:55,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:55,922 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1280130018] [2019-11-21 15:44:55,923 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 [2019-11-21 15:44:56,233 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 15:44:56,233 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 15:44:56,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 15:44:56,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:56,247 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 15:44:56,248 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:56,251 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:56,251 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:44:56,251 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 15:44:56,444 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:44:56,444 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:44:56,525 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1280130018] [2019-11-21 15:44:56,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:44:56,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 12 [2019-11-21 15:44:56,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577752361] [2019-11-21 15:44:56,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 15:44:56,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:56,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 15:44:56,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 15:44:56,527 INFO L87 Difference]: Start difference. First operand 166 states and 172 transitions. Second operand 13 states. [2019-11-21 15:44:57,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:44:57,562 INFO L93 Difference]: Finished difference Result 176 states and 181 transitions. [2019-11-21 15:44:57,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 15:44:57,562 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 65 [2019-11-21 15:44:57,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:44:57,565 INFO L225 Difference]: With dead ends: 176 [2019-11-21 15:44:57,565 INFO L226 Difference]: Without dead ends: 176 [2019-11-21 15:44:57,565 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 114 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-11-21 15:44:57,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2019-11-21 15:44:57,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 164. [2019-11-21 15:44:57,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-11-21 15:44:57,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 170 transitions. [2019-11-21 15:44:57,571 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 170 transitions. Word has length 65 [2019-11-21 15:44:57,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:44:57,572 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 170 transitions. [2019-11-21 15:44:57,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 15:44:57,572 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 170 transitions. [2019-11-21 15:44:57,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-21 15:44:57,573 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:44:57,573 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:44:57,776 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:44:57,777 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:44:57,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:44:57,777 INFO L82 PathProgramCache]: Analyzing trace with hash 490263071, now seen corresponding path program 1 times [2019-11-21 15:44:57,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:44:57,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [527375244] [2019-11-21 15:44:57,779 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 [2019-11-21 15:44:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:44:58,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-21 15:44:58,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:44:58,384 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 15:44:58,384 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:44:58,389 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:44:58,389 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:44:58,390 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 15:44:58,638 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:44:58,639 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:44:59,454 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:44:59,454 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [527375244] [2019-11-21 15:44:59,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:44:59,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-21 15:44:59,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548219758] [2019-11-21 15:44:59,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-21 15:44:59,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:44:59,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-21 15:44:59,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-21 15:44:59,456 INFO L87 Difference]: Start difference. First operand 164 states and 170 transitions. Second operand 23 states. [2019-11-21 15:45:02,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:02,133 INFO L93 Difference]: Finished difference Result 162 states and 168 transitions. [2019-11-21 15:45:02,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 15:45:02,135 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 65 [2019-11-21 15:45:02,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:02,136 INFO L225 Difference]: With dead ends: 162 [2019-11-21 15:45:02,136 INFO L226 Difference]: Without dead ends: 162 [2019-11-21 15:45:02,136 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 104 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-21 15:45:02,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-21 15:45:02,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2019-11-21 15:45:02,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-21 15:45:02,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 168 transitions. [2019-11-21 15:45:02,142 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 168 transitions. Word has length 65 [2019-11-21 15:45:02,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:02,143 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 168 transitions. [2019-11-21 15:45:02,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-21 15:45:02,144 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 168 transitions. [2019-11-21 15:45:02,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-21 15:45:02,150 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:02,150 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:45:02,350 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:02,351 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:02,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:02,352 INFO L82 PathProgramCache]: Analyzing trace with hash 201237803, now seen corresponding path program 1 times [2019-11-21 15:45:02,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:02,353 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1555111049] [2019-11-21 15:45:02,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:02,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 15:45:02,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:02,738 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:02,738 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:45:02,879 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:02,879 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1555111049] [2019-11-21 15:45:02,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:45:02,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2019-11-21 15:45:02,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296833611] [2019-11-21 15:45:02,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 15:45:02,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:45:02,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 15:45:02,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-21 15:45:02,881 INFO L87 Difference]: Start difference. First operand 162 states and 168 transitions. Second operand 8 states. [2019-11-21 15:45:02,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:02,932 INFO L93 Difference]: Finished difference Result 164 states and 169 transitions. [2019-11-21 15:45:02,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 15:45:02,933 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2019-11-21 15:45:02,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:02,934 INFO L225 Difference]: With dead ends: 164 [2019-11-21 15:45:02,934 INFO L226 Difference]: Without dead ends: 162 [2019-11-21 15:45:02,934 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-21 15:45:02,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-21 15:45:02,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2019-11-21 15:45:02,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-21 15:45:02,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 167 transitions. [2019-11-21 15:45:02,945 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 167 transitions. Word has length 68 [2019-11-21 15:45:02,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:02,945 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 167 transitions. [2019-11-21 15:45:02,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 15:45:02,945 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 167 transitions. [2019-11-21 15:45:02,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-11-21 15:45:02,946 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:02,946 INFO L410 BasicCegarLoop]: trace histogram [28, 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, 1, 1, 1, 1, 1] [2019-11-21 15:45:03,157 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:03,158 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:03,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:03,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1372781212, now seen corresponding path program 1 times [2019-11-21 15:45:03,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:03,159 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [215084591] [2019-11-21 15:45:03,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:03,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 15:45:03,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:03,565 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:03,566 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:45:03,736 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:45:03,803 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:03,803 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [215084591] [2019-11-21 15:45:03,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:45:03,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2019-11-21 15:45:03,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257043115] [2019-11-21 15:45:03,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-21 15:45:03,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:45:03,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-21 15:45:03,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-21 15:45:03,805 INFO L87 Difference]: Start difference. First operand 162 states and 167 transitions. Second operand 11 states. [2019-11-21 15:45:03,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:03,908 INFO L93 Difference]: Finished difference Result 166 states and 170 transitions. [2019-11-21 15:45:03,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-21 15:45:03,909 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2019-11-21 15:45:03,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:03,910 INFO L225 Difference]: With dead ends: 166 [2019-11-21 15:45:03,910 INFO L226 Difference]: Without dead ends: 162 [2019-11-21 15:45:03,911 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 15:45:03,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-21 15:45:03,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2019-11-21 15:45:03,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-21 15:45:03,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 166 transitions. [2019-11-21 15:45:03,915 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 166 transitions. Word has length 73 [2019-11-21 15:45:03,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:03,916 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 166 transitions. [2019-11-21 15:45:03,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-21 15:45:03,916 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 166 transitions. [2019-11-21 15:45:03,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-11-21 15:45:03,917 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:03,917 INFO L410 BasicCegarLoop]: trace histogram [28, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:45:04,120 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:04,121 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:04,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:04,121 INFO L82 PathProgramCache]: Analyzing trace with hash -2061819663, now seen corresponding path program 1 times [2019-11-21 15:45:04,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:04,122 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [860632346] [2019-11-21 15:45:04,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:04,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-21 15:45:04,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:04,651 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 15:45:04,652 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:45:04,654 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:45:04,654 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:45:04,654 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 15:45:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:04,920 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:45:05,331 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:05,332 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [860632346] [2019-11-21 15:45:05,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:45:05,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 12] imperfect sequences [] total 17 [2019-11-21 15:45:05,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635300387] [2019-11-21 15:45:05,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-21 15:45:05,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:45:05,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-21 15:45:05,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2019-11-21 15:45:05,334 INFO L87 Difference]: Start difference. First operand 162 states and 166 transitions. Second operand 18 states. [2019-11-21 15:45:07,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:07,371 INFO L93 Difference]: Finished difference Result 172 states and 175 transitions. [2019-11-21 15:45:07,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-21 15:45:07,372 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 84 [2019-11-21 15:45:07,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:07,374 INFO L225 Difference]: With dead ends: 172 [2019-11-21 15:45:07,374 INFO L226 Difference]: Without dead ends: 172 [2019-11-21 15:45:07,375 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 147 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2019-11-21 15:45:07,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-11-21 15:45:07,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 160. [2019-11-21 15:45:07,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-11-21 15:45:07,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 164 transitions. [2019-11-21 15:45:07,384 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 164 transitions. Word has length 84 [2019-11-21 15:45:07,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:07,385 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 164 transitions. [2019-11-21 15:45:07,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-21 15:45:07,386 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 164 transitions. [2019-11-21 15:45:07,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-11-21 15:45:07,390 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:07,390 INFO L410 BasicCegarLoop]: trace histogram [28, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:45:07,605 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:07,606 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:07,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:07,607 INFO L82 PathProgramCache]: Analyzing trace with hash -2061819662, now seen corresponding path program 1 times [2019-11-21 15:45:07,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:07,608 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [226643544] [2019-11-21 15:45:07,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:08,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 36 conjunts are in the unsatisfiable core [2019-11-21 15:45:08,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:08,293 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 15:45:08,293 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:45:08,298 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:45:08,298 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:45:08,298 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 15:45:08,675 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:08,675 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:45:10,478 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:10,478 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [226643544] [2019-11-21 15:45:10,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:45:10,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 14] imperfect sequences [] total 30 [2019-11-21 15:45:10,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770075352] [2019-11-21 15:45:10,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-11-21 15:45:10,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:45:10,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-11-21 15:45:10,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2019-11-21 15:45:10,480 INFO L87 Difference]: Start difference. First operand 160 states and 164 transitions. Second operand 31 states. [2019-11-21 15:45:13,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:13,943 INFO L93 Difference]: Finished difference Result 158 states and 162 transitions. [2019-11-21 15:45:13,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-21 15:45:13,944 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 84 [2019-11-21 15:45:13,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:13,945 INFO L225 Difference]: With dead ends: 158 [2019-11-21 15:45:13,946 INFO L226 Difference]: Without dead ends: 158 [2019-11-21 15:45:13,946 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 134 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=119, Invalid=1141, Unknown=0, NotChecked=0, Total=1260 [2019-11-21 15:45:13,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-21 15:45:13,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-11-21 15:45:13,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-11-21 15:45:13,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 162 transitions. [2019-11-21 15:45:13,952 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 162 transitions. Word has length 84 [2019-11-21 15:45:13,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:13,953 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 162 transitions. [2019-11-21 15:45:13,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-11-21 15:45:13,953 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 162 transitions. [2019-11-21 15:45:13,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-11-21 15:45:13,954 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:13,954 INFO L410 BasicCegarLoop]: trace histogram [28, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:45:14,159 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:14,160 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:14,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:14,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1459599634, now seen corresponding path program 1 times [2019-11-21 15:45:14,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:14,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1373057985] [2019-11-21 15:45:14,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:14,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-21 15:45:14,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:14,606 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:14,607 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:45:14,763 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:14,763 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1373057985] [2019-11-21 15:45:14,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:45:14,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2019-11-21 15:45:14,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077461707] [2019-11-21 15:45:14,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-21 15:45:14,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:45:14,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-21 15:45:14,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-21 15:45:14,765 INFO L87 Difference]: Start difference. First operand 158 states and 162 transitions. Second operand 11 states. [2019-11-21 15:45:14,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:14,867 INFO L93 Difference]: Finished difference Result 161 states and 164 transitions. [2019-11-21 15:45:14,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 15:45:14,868 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2019-11-21 15:45:14,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:14,869 INFO L225 Difference]: With dead ends: 161 [2019-11-21 15:45:14,869 INFO L226 Difference]: Without dead ends: 158 [2019-11-21 15:45:14,870 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2019-11-21 15:45:14,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-21 15:45:14,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-11-21 15:45:14,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-11-21 15:45:14,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 161 transitions. [2019-11-21 15:45:14,876 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 161 transitions. Word has length 93 [2019-11-21 15:45:14,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:14,877 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 161 transitions. [2019-11-21 15:45:14,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-21 15:45:14,877 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 161 transitions. [2019-11-21 15:45:14,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-11-21 15:45:14,878 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:14,878 INFO L410 BasicCegarLoop]: trace histogram [28, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:45:15,082 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:15,083 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:15,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:15,084 INFO L82 PathProgramCache]: Analyzing trace with hash -684662951, now seen corresponding path program 1 times [2019-11-21 15:45:15,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:15,086 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2065715327] [2019-11-21 15:45:15,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:15,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 30 conjunts are in the unsatisfiable core [2019-11-21 15:45:15,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:15,720 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 15:45:15,720 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:45:15,722 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:45:15,722 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:45:15,722 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 15:45:16,113 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:16,113 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:45:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:16,509 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2065715327] [2019-11-21 15:45:16,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:45:16,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 14] imperfect sequences [] total 19 [2019-11-21 15:45:16,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244634075] [2019-11-21 15:45:16,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-21 15:45:16,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:45:16,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-21 15:45:16,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2019-11-21 15:45:16,511 INFO L87 Difference]: Start difference. First operand 158 states and 161 transitions. Second operand 20 states. [2019-11-21 15:45:18,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:18,300 INFO L93 Difference]: Finished difference Result 172 states and 174 transitions. [2019-11-21 15:45:18,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-21 15:45:18,301 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 106 [2019-11-21 15:45:18,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:18,303 INFO L225 Difference]: With dead ends: 172 [2019-11-21 15:45:18,303 INFO L226 Difference]: Without dead ends: 172 [2019-11-21 15:45:18,304 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 187 SyntacticMatches, 6 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2019-11-21 15:45:18,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-11-21 15:45:18,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 156. [2019-11-21 15:45:18,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-21 15:45:18,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 159 transitions. [2019-11-21 15:45:18,309 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 159 transitions. Word has length 106 [2019-11-21 15:45:18,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:18,309 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 159 transitions. [2019-11-21 15:45:18,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-21 15:45:18,309 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 159 transitions. [2019-11-21 15:45:18,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-11-21 15:45:18,310 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:18,311 INFO L410 BasicCegarLoop]: trace histogram [28, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:45:18,516 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:18,516 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:18,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:18,517 INFO L82 PathProgramCache]: Analyzing trace with hash -684662950, now seen corresponding path program 1 times [2019-11-21 15:45:18,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:18,517 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [184562199] [2019-11-21 15:45:18,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:19,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 40 conjunts are in the unsatisfiable core [2019-11-21 15:45:19,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:19,305 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 15:45:19,305 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:45:19,318 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:45:19,318 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:45:19,318 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 15:45:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:19,860 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:45:21,849 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:21,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [184562199] [2019-11-21 15:45:21,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:45:21,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 16] imperfect sequences [] total 34 [2019-11-21 15:45:21,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262177601] [2019-11-21 15:45:21,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-11-21 15:45:21,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:45:21,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-11-21 15:45:21,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1093, Unknown=0, NotChecked=0, Total=1190 [2019-11-21 15:45:21,851 INFO L87 Difference]: Start difference. First operand 156 states and 159 transitions. Second operand 35 states. [2019-11-21 15:45:26,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:26,153 INFO L93 Difference]: Finished difference Result 154 states and 157 transitions. [2019-11-21 15:45:26,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-21 15:45:26,155 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 106 [2019-11-21 15:45:26,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:26,156 INFO L225 Difference]: With dead ends: 154 [2019-11-21 15:45:26,157 INFO L226 Difference]: Without dead ends: 154 [2019-11-21 15:45:26,157 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 172 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=138, Invalid=1502, Unknown=0, NotChecked=0, Total=1640 [2019-11-21 15:45:26,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-11-21 15:45:26,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-11-21 15:45:26,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-21 15:45:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 157 transitions. [2019-11-21 15:45:26,162 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 157 transitions. Word has length 106 [2019-11-21 15:45:26,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:26,163 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 157 transitions. [2019-11-21 15:45:26,163 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-11-21 15:45:26,163 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 157 transitions. [2019-11-21 15:45:26,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-11-21 15:45:26,164 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:26,164 INFO L410 BasicCegarLoop]: trace histogram [28, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:45:26,366 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:26,367 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:26,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:26,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1381247537, now seen corresponding path program 1 times [2019-11-21 15:45:26,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:26,368 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [203438861] [2019-11-21 15:45:26,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 24 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:26,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-21 15:45:26,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:26,846 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:26,846 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:45:27,224 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:27,225 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [203438861] [2019-11-21 15:45:27,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:45:27,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2019-11-21 15:45:27,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724405149] [2019-11-21 15:45:27,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-21 15:45:27,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:45:27,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-21 15:45:27,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-21 15:45:27,227 INFO L87 Difference]: Start difference. First operand 154 states and 157 transitions. Second operand 11 states. [2019-11-21 15:45:27,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:27,352 INFO L93 Difference]: Finished difference Result 156 states and 158 transitions. [2019-11-21 15:45:27,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 15:45:27,353 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 104 [2019-11-21 15:45:27,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:27,355 INFO L225 Difference]: With dead ends: 156 [2019-11-21 15:45:27,355 INFO L226 Difference]: Without dead ends: 154 [2019-11-21 15:45:27,355 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2019-11-21 15:45:27,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-11-21 15:45:27,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-11-21 15:45:27,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-21 15:45:27,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 156 transitions. [2019-11-21 15:45:27,361 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 156 transitions. Word has length 104 [2019-11-21 15:45:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:27,361 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 156 transitions. [2019-11-21 15:45:27,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-21 15:45:27,362 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 156 transitions. [2019-11-21 15:45:27,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-11-21 15:45:27,363 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:27,363 INFO L410 BasicCegarLoop]: trace histogram [28, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:45:27,575 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:27,576 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:27,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:27,576 INFO L82 PathProgramCache]: Analyzing trace with hash 624069493, now seen corresponding path program 1 times [2019-11-21 15:45:27,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:27,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2125136084] [2019-11-21 15:45:27,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:28,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 42 conjunts are in the unsatisfiable core [2019-11-21 15:45:28,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:28,290 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 15:45:28,291 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:45:28,292 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:45:28,292 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:45:28,293 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 15:45:28,936 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:28,937 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:45:29,395 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:29,395 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2125136084] [2019-11-21 15:45:29,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:45:29,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23, 18] imperfect sequences [] total 23 [2019-11-21 15:45:29,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591022539] [2019-11-21 15:45:29,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-21 15:45:29,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:45:29,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-21 15:45:29,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2019-11-21 15:45:29,397 INFO L87 Difference]: Start difference. First operand 154 states and 156 transitions. Second operand 24 states. [2019-11-21 15:45:31,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:31,601 INFO L93 Difference]: Finished difference Result 164 states and 165 transitions. [2019-11-21 15:45:31,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-21 15:45:31,602 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 119 [2019-11-21 15:45:31,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:31,603 INFO L225 Difference]: With dead ends: 164 [2019-11-21 15:45:31,603 INFO L226 Difference]: Without dead ends: 164 [2019-11-21 15:45:31,603 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 205 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2019-11-21 15:45:31,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-11-21 15:45:31,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 152. [2019-11-21 15:45:31,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-21 15:45:31,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 154 transitions. [2019-11-21 15:45:31,608 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 154 transitions. Word has length 119 [2019-11-21 15:45:31,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:31,608 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 154 transitions. [2019-11-21 15:45:31,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-21 15:45:31,608 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 154 transitions. [2019-11-21 15:45:31,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-11-21 15:45:31,609 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:31,609 INFO L410 BasicCegarLoop]: trace histogram [28, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:45:31,814 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:31,815 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:31,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:31,820 INFO L82 PathProgramCache]: Analyzing trace with hash 624069494, now seen corresponding path program 1 times [2019-11-21 15:45:31,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:31,820 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1257516180] [2019-11-21 15:45:31,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 26 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:32,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 52 conjunts are in the unsatisfiable core [2019-11-21 15:45:32,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:32,652 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 15:45:32,653 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:45:32,657 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:45:32,657 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:45:32,658 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 15:45:33,511 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:33,511 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:45:36,296 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:36,297 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1257516180] [2019-11-21 15:45:36,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:45:36,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23, 20] imperfect sequences [] total 42 [2019-11-21 15:45:36,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132443097] [2019-11-21 15:45:36,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-11-21 15:45:36,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:45:36,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-11-21 15:45:36,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1685, Unknown=0, NotChecked=0, Total=1806 [2019-11-21 15:45:36,299 INFO L87 Difference]: Start difference. First operand 152 states and 154 transitions. Second operand 43 states. [2019-11-21 15:45:42,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:42,699 INFO L93 Difference]: Finished difference Result 150 states and 152 transitions. [2019-11-21 15:45:42,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-21 15:45:42,700 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 119 [2019-11-21 15:45:42,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:42,701 INFO L225 Difference]: With dead ends: 150 [2019-11-21 15:45:42,701 INFO L226 Difference]: Without dead ends: 150 [2019-11-21 15:45:42,702 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 188 SyntacticMatches, 8 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=176, Invalid=2374, Unknown=0, NotChecked=0, Total=2550 [2019-11-21 15:45:42,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-21 15:45:42,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-11-21 15:45:42,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-21 15:45:42,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 152 transitions. [2019-11-21 15:45:42,706 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 152 transitions. Word has length 119 [2019-11-21 15:45:42,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:42,706 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 152 transitions. [2019-11-21 15:45:42,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-11-21 15:45:42,707 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 152 transitions. [2019-11-21 15:45:42,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-11-21 15:45:42,708 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:42,708 INFO L410 BasicCegarLoop]: trace histogram [28, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:45:42,913 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:42,914 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:42,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:42,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1258913086, now seen corresponding path program 1 times [2019-11-21 15:45:42,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:42,916 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [888856868] [2019-11-21 15:45:42,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 27 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:43,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-21 15:45:43,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:44,352 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:44,353 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:45:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 15:45:45,271 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [888856868] [2019-11-21 15:45:45,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:45:45,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 38 [2019-11-21 15:45:45,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683954007] [2019-11-21 15:45:45,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-11-21 15:45:45,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:45:45,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-11-21 15:45:45,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1371, Unknown=0, NotChecked=0, Total=1482 [2019-11-21 15:45:45,274 INFO L87 Difference]: Start difference. First operand 150 states and 152 transitions. Second operand 39 states. [2019-11-21 15:45:47,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:47,540 INFO L93 Difference]: Finished difference Result 149 states and 151 transitions. [2019-11-21 15:45:47,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-21 15:45:47,541 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 122 [2019-11-21 15:45:47,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:47,542 INFO L225 Difference]: With dead ends: 149 [2019-11-21 15:45:47,542 INFO L226 Difference]: Without dead ends: 149 [2019-11-21 15:45:47,543 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 202 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=160, Invalid=1910, Unknown=0, NotChecked=0, Total=2070 [2019-11-21 15:45:47,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-11-21 15:45:47,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2019-11-21 15:45:47,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-11-21 15:45:47,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 151 transitions. [2019-11-21 15:45:47,547 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 151 transitions. Word has length 122 [2019-11-21 15:45:47,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:47,547 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 151 transitions. [2019-11-21 15:45:47,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-11-21 15:45:47,547 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 151 transitions. [2019-11-21 15:45:47,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-11-21 15:45:47,548 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:47,548 INFO L410 BasicCegarLoop]: trace histogram [28, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:45:47,760 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:47,760 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:47,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:47,761 INFO L82 PathProgramCache]: Analyzing trace with hash -625005447, now seen corresponding path program 1 times [2019-11-21 15:45:47,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:47,762 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1215518279] [2019-11-21 15:45:47,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 28 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:48,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 156 conjunts are in the unsatisfiable core [2019-11-21 15:45:48,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:48,936 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16 treesize of output 12 [2019-11-21 15:45:48,936 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:45:48,945 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:45:48,945 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:45:48,945 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2019-11-21 15:45:49,021 INFO L343 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2019-11-21 15:45:49,021 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2019-11-21 15:45:49,022 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:45:49,044 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:45:49,045 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:45:49,045 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2019-11-21 15:45:49,119 INFO L343 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2019-11-21 15:45:49,119 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 36 treesize of output 38 [2019-11-21 15:45:49,120 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:45:49,137 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:45:49,137 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:45:49,138 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:37 [2019-11-21 15:45:49,358 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2019-11-21 15:45:49,359 INFO L343 Elim1Store]: treesize reduction 32, result has 77.5 percent of original size [2019-11-21 15:45:49,360 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 137 [2019-11-21 15:45:49,361 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:45:49,445 INFO L567 ElimStorePlain]: treesize reduction 84, result has 35.9 percent of original size [2019-11-21 15:45:49,445 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:45:49,445 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:47 [2019-11-21 15:46:26,498 WARN L192 SmtUtils]: Spent 36.95 s on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2019-11-21 15:46:26,499 INFO L343 Elim1Store]: treesize reduction 65, result has 70.7 percent of original size [2019-11-21 15:46:26,499 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 189 [2019-11-21 15:46:26,501 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:46:28,671 WARN L192 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 50 DAG size of output: 29 [2019-11-21 15:46:28,672 INFO L567 ElimStorePlain]: treesize reduction 148, result has 28.5 percent of original size [2019-11-21 15:46:28,672 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:46:28,673 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:59 [2019-11-21 15:46:28,901 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 28 [2019-11-21 15:46:28,902 INFO L343 Elim1Store]: treesize reduction 246, result has 15.2 percent of original size [2019-11-21 15:46:28,902 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 80 [2019-11-21 15:46:28,903 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:46:28,941 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:46:28,942 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:46:28,942 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:74, output treesize:70 [2019-11-21 15:46:29,362 WARN L192 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 33 [2019-11-21 15:46:29,363 INFO L343 Elim1Store]: treesize reduction 332, result has 13.8 percent of original size [2019-11-21 15:46:29,364 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 80 treesize of output 94 [2019-11-21 15:46:29,365 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:46:29,443 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:46:29,443 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:46:29,444 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:85, output treesize:81 [2019-11-21 15:46:29,958 WARN L192 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 38 [2019-11-21 15:46:29,959 INFO L343 Elim1Store]: treesize reduction 430, result has 12.6 percent of original size [2019-11-21 15:46:29,959 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 91 treesize of output 108 [2019-11-21 15:46:29,961 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:46:30,013 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:46:30,014 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:46:30,014 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:96, output treesize:92 [2019-11-21 15:46:30,457 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 43 [2019-11-21 15:46:30,458 INFO L343 Elim1Store]: treesize reduction 540, result has 11.6 percent of original size [2019-11-21 15:46:30,458 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 102 treesize of output 122 [2019-11-21 15:46:30,459 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:46:30,525 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:46:30,525 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:46:30,526 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:107, output treesize:103 [2019-11-21 15:46:31,589 WARN L192 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 99 [2019-11-21 15:46:31,590 INFO L343 Elim1Store]: treesize reduction 416, result has 45.3 percent of original size [2019-11-21 15:46:31,590 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 114 treesize of output 401 [2019-11-21 15:46:31,591 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:46:31,891 WARN L192 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 49 [2019-11-21 15:46:31,891 INFO L567 ElimStorePlain]: treesize reduction 264, result has 30.0 percent of original size [2019-11-21 15:46:31,891 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:46:31,892 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:117, output treesize:113 [2019-11-21 15:48:23,322 WARN L192 SmtUtils]: Spent 1.85 m on a formula simplification. DAG size of input: 289 DAG size of output: 140 [2019-11-21 15:48:23,323 INFO L343 Elim1Store]: treesize reduction 449, result has 51.1 percent of original size [2019-11-21 15:48:23,323 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 126 treesize of output 531 [2019-11-21 15:48:23,325 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:48:23,773 WARN L192 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 55 [2019-11-21 15:48:23,774 INFO L567 ElimStorePlain]: treesize reduction 460, result has 21.6 percent of original size [2019-11-21 15:48:23,774 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:48:23,774 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:131, output treesize:127 [2019-11-21 15:52:05,154 WARN L192 SmtUtils]: Spent 3.69 m on a formula simplification. DAG size of input: 339 DAG size of output: 181 [2019-11-21 15:52:05,155 INFO L343 Elim1Store]: treesize reduction 496, result has 54.5 percent of original size [2019-11-21 15:52:05,155 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 138 treesize of output 661 [2019-11-21 15:52:05,158 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:52:05,631 WARN L192 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 57 [2019-11-21 15:52:05,633 INFO L567 ElimStorePlain]: treesize reduction 460, result has 22.9 percent of original size [2019-11-21 15:52:05,633 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:52:05,633 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:137 [2019-11-21 15:53:43,940 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-11-21 15:53:44,142 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:53:44,143 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:118) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:178) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:163) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:133) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.simplifyWithStatistics(SmtUtils.java:220) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:361) 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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 55 more [2019-11-21 15:53:44,151 INFO L168 Benchmark]: Toolchain (without parser) took 553647.19 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 467.1 MB). Free memory was 952.3 MB in the beginning and 1.4 GB in the end (delta: -460.9 MB). Peak memory consumption was 639.4 MB. Max. memory is 11.5 GB. [2019-11-21 15:53:44,152 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 15:53:44,152 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-21 15:53:44,153 INFO L168 Benchmark]: Boogie Preprocessor took 99.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 15:53:44,153 INFO L168 Benchmark]: RCFGBuilder took 1416.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.2 MB). Peak memory consumption was 104.2 MB. Max. memory is 11.5 GB. [2019-11-21 15:53:44,154 INFO L168 Benchmark]: TraceAbstraction took 551377.28 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 321.9 MB). Free memory was 995.7 MB in the beginning and 1.4 GB in the end (delta: -417.6 MB). Peak memory consumption was 537.6 MB. Max. memory is 11.5 GB. [2019-11-21 15:53:44,155 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 748.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 99.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1416.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.2 MB). Peak memory consumption was 104.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 551377.28 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 321.9 MB). Free memory was 995.7 MB in the beginning and 1.4 GB in the end (delta: -417.6 MB). Peak memory consumption was 537.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...