./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 65a59966 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 902bca7b1502ca5dcb44bb7e7d9bc6d169c57d43 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-65a5996 [2019-11-20 19:17:30,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 19:17:30,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 19:17:30,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 19:17:30,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 19:17:30,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 19:17:30,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 19:17:30,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 19:17:30,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 19:17:30,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 19:17:30,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 19:17:30,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 19:17:30,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 19:17:30,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 19:17:30,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 19:17:30,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 19:17:30,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 19:17:30,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 19:17:30,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 19:17:30,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 19:17:30,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 19:17:30,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 19:17:30,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 19:17:30,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 19:17:30,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 19:17:30,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 19:17:30,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 19:17:30,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 19:17:30,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 19:17:30,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 19:17:30,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 19:17:30,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 19:17:30,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 19:17:30,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 19:17:30,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 19:17:30,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 19:17:30,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 19:17:30,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 19:17:30,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 19:17:30,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 19:17:30,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 19:17:30,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 19:17:30,535 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 19:17:30,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 19:17:30,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 19:17:30,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 19:17:30,542 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 19:17:30,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 19:17:30,543 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 19:17:30,543 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 19:17:30,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 19:17:30,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 19:17:30,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 19:17:30,545 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 19:17:30,545 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 19:17:30,545 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 19:17:30,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 19:17:30,546 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 19:17:30,546 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 19:17:30,546 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 19:17:30,547 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 19:17:30,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 19:17:30,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 19:17:30,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 19:17:30,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 19:17:30,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 19:17:30,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 19:17:30,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 19:17:30,549 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 19:17:30,550 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 19:17:30,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 19:17:30,551 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 902bca7b1502ca5dcb44bb7e7d9bc6d169c57d43 [2019-11-20 19:17:30,865 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 19:17:30,878 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 19:17:30,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 19:17:30,883 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 19:17:30,884 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 19:17:30,885 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2019-11-20 19:17:30,946 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddc2d8d38/1b8bfe2e94f9440eb5d7991b4af25383/FLAG3e87a455b [2019-11-20 19:17:31,464 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 19:17:31,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2019-11-20 19:17:31,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddc2d8d38/1b8bfe2e94f9440eb5d7991b4af25383/FLAG3e87a455b [2019-11-20 19:17:31,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddc2d8d38/1b8bfe2e94f9440eb5d7991b4af25383 [2019-11-20 19:17:31,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 19:17:31,771 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 19:17:31,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 19:17:31,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 19:17:31,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 19:17:31,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:17:31" (1/1) ... [2019-11-20 19:17:31,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:31, skipping insertion in model container [2019-11-20 19:17:31,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:17:31" (1/1) ... [2019-11-20 19:17:31,786 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 19:17:31,841 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 19:17:32,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 19:17:32,383 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 19:17:32,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 19:17:32,594 INFO L192 MainTranslator]: Completed translation [2019-11-20 19:17:32,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:32 WrapperNode [2019-11-20 19:17:32,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 19:17:32,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 19:17:32,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 19:17:32,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 19:17:32,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:32" (1/1) ... [2019-11-20 19:17:32,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:32" (1/1) ... [2019-11-20 19:17:32,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:32" (1/1) ... [2019-11-20 19:17:32,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:32" (1/1) ... [2019-11-20 19:17:32,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:32" (1/1) ... [2019-11-20 19:17:32,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:32" (1/1) ... [2019-11-20 19:17:32,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:32" (1/1) ... [2019-11-20 19:17:32,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 19:17:32,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 19:17:32,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 19:17:32,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 19:17:32,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 19:17:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 19:17:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 19:17:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 19:17:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 19:17:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 19:17:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 19:17:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 19:17:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 19:17:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 19:17:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 19:17:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 19:17:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 19:17:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 19:17:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 19:17:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 19:17:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 19:17:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 19:17:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 19:17:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 19:17:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 19:17:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 19:17:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 19:17:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 19:17:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 19:17:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 19:17:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 19:17:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 19:17:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 19:17:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 19:17:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 19:17:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 19:17:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 19:17:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 19:17:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 19:17:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 19:17:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 19:17:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 19:17:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 19:17:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 19:17:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 19:17:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 19:17:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-20 19:17:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-20 19:17:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 19:17:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 19:17:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 19:17:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 19:17:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 19:17:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 19:17:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 19:17:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 19:17:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 19:17:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 19:17:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 19:17:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 19:17:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 19:17:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 19:17:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 19:17:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 19:17:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 19:17:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 19:17:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 19:17:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 19:17:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 19:17:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 19:17:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 19:17:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 19:17:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 19:17:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 19:17:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 19:17:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 19:17:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 19:17:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 19:17:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 19:17:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 19:17:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 19:17:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 19:17:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 19:17:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 19:17:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 19:17:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 19:17:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 19:17:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 19:17:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 19:17:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 19:17:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 19:17:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 19:17:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 19:17:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 19:17:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 19:17:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 19:17:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 19:17:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 19:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 19:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 19:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 19:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 19:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 19:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 19:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 19:17:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 19:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 19:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 19:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 19:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 19:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 19:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 19:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 19:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 19:17:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 19:17:32,793 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 19:17:32,793 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 19:17:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 19:17:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 19:17:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 19:17:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 19:17:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 19:17:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 19:17:32,795 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 19:17:32,795 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 19:17:32,795 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 19:17:32,795 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 19:17:32,795 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 19:17:32,795 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 19:17:32,796 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 19:17:32,796 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 19:17:32,796 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 19:17:32,796 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 19:17:32,796 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 19:17:32,796 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 19:17:32,797 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 19:17:32,797 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 19:17:32,797 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 19:17:32,797 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 19:17:32,797 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 19:17:32,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 19:17:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 19:17:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 19:17:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 19:17:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 19:17:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 19:17:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 19:17:32,799 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 19:17:32,799 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 19:17:32,799 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 19:17:32,799 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 19:17:32,799 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 19:17:32,799 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 19:17:32,799 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 19:17:32,800 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 19:17:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 19:17:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 19:17:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 19:17:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 19:17:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 19:17:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 19:17:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 19:17:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 19:17:32,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 19:17:32,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 19:17:32,802 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 19:17:32,802 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 19:17:32,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 19:17:32,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 19:17:32,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 19:17:32,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 19:17:32,803 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 19:17:32,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 19:17:32,803 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 19:17:32,803 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 19:17:32,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 19:17:32,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 19:17:32,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 19:17:32,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 19:17:32,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 19:17:32,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 19:17:32,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 19:17:32,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 19:17:32,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 19:17:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 19:17:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 19:17:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 19:17:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 19:17:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 19:17:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 19:17:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 19:17:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 19:17:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 19:17:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 19:17:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 19:17:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 19:17:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 19:17:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 19:17:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 19:17:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 19:17:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 19:17:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 19:17:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 19:17:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 19:17:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 19:17:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 19:17:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 19:17:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 19:17:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-20 19:17:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-20 19:17:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-20 19:17:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 19:17:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 19:17:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 19:17:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 19:17:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 19:17:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 19:17:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 19:17:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 19:17:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 19:17:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 19:17:33,463 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 19:17:33,917 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 19:17:34,528 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 19:17:34,529 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 19:17:34,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:17:34 BoogieIcfgContainer [2019-11-20 19:17:34,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 19:17:34,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 19:17:34,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 19:17:34,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 19:17:34,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:17:31" (1/3) ... [2019-11-20 19:17:34,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce4b7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:17:34, skipping insertion in model container [2019-11-20 19:17:34,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:17:32" (2/3) ... [2019-11-20 19:17:34,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce4b7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:17:34, skipping insertion in model container [2019-11-20 19:17:34,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:17:34" (3/3) ... [2019-11-20 19:17:34,541 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_2-2.i [2019-11-20 19:17:34,552 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 19:17:34,560 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-20 19:17:34,573 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-20 19:17:34,595 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 19:17:34,595 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 19:17:34,595 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 19:17:34,596 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 19:17:34,596 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 19:17:34,596 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 19:17:34,596 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 19:17:34,597 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 19:17:34,621 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2019-11-20 19:17:34,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 19:17:34,633 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:17:34,634 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 19:17:34,635 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 19:17:34,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:17:34,642 INFO L82 PathProgramCache]: Analyzing trace with hash 597436025, now seen corresponding path program 1 times [2019-11-20 19:17:34,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:17:34,655 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1475753104] [2019-11-20 19:17:34,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:17:35,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 19:17:35,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:17:35,126 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 19:17:35,129 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:17:35,143 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:17:35,144 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:17:35,145 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 19:17:35,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:35,200 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:17:35,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:35,288 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1475753104] [2019-11-20 19:17:35,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:17:35,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 19:17:35,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408352466] [2019-11-20 19:17:35,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 19:17:35,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:17:35,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 19:17:35,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 19:17:35,325 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 5 states. [2019-11-20 19:17:35,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:17:35,660 INFO L93 Difference]: Finished difference Result 93 states and 105 transitions. [2019-11-20 19:17:35,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 19:17:35,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 19:17:35,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:17:35,681 INFO L225 Difference]: With dead ends: 93 [2019-11-20 19:17:35,681 INFO L226 Difference]: Without dead ends: 90 [2019-11-20 19:17:35,683 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 19:17:35,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-20 19:17:35,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2019-11-20 19:17:35,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-20 19:17:35,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2019-11-20 19:17:35,775 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 22 [2019-11-20 19:17:35,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:17:35,776 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2019-11-20 19:17:35,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 19:17:35,776 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2019-11-20 19:17:35,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 19:17:35,779 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:17:35,779 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 19:17:35,982 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:35,983 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 19:17:35,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:17:35,984 INFO L82 PathProgramCache]: Analyzing trace with hash 597436026, now seen corresponding path program 1 times [2019-11-20 19:17:35,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:17:35,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [600846347] [2019-11-20 19:17:35,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:17:36,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 19:17:36,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:17:36,347 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 19:17:36,347 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:17:36,354 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:17:36,355 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:17:36,355 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 19:17:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:36,558 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:17:37,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:17:37,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:37,914 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [600846347] [2019-11-20 19:17:37,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:17:37,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 17 [2019-11-20 19:17:37,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340777071] [2019-11-20 19:17:37,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-20 19:17:37,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:17:37,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-20 19:17:37,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-11-20 19:17:37,918 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand 18 states. [2019-11-20 19:17:39,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:17:39,648 INFO L93 Difference]: Finished difference Result 98 states and 113 transitions. [2019-11-20 19:17:39,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-20 19:17:39,649 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2019-11-20 19:17:39,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:17:39,651 INFO L225 Difference]: With dead ends: 98 [2019-11-20 19:17:39,651 INFO L226 Difference]: Without dead ends: 98 [2019-11-20 19:17:39,652 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2019-11-20 19:17:39,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-20 19:17:39,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 91. [2019-11-20 19:17:39,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-20 19:17:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2019-11-20 19:17:39,663 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 22 [2019-11-20 19:17:39,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:17:39,664 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2019-11-20 19:17:39,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-20 19:17:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2019-11-20 19:17:39,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 19:17:39,665 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:17:39,665 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 19:17:39,868 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:39,869 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 19:17:39,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:17:39,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1484939706, now seen corresponding path program 1 times [2019-11-20 19:17:39,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:17:39,870 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [851018221] [2019-11-20 19:17:39,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:17:40,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 19:17:40,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:17:40,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:40,158 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:17:40,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:40,200 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [851018221] [2019-11-20 19:17:40,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:17:40,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 19:17:40,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637201754] [2019-11-20 19:17:40,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 19:17:40,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:17:40,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 19:17:40,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 19:17:40,202 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand 5 states. [2019-11-20 19:17:40,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:17:40,263 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2019-11-20 19:17:40,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 19:17:40,264 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 19:17:40,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:17:40,266 INFO L225 Difference]: With dead ends: 90 [2019-11-20 19:17:40,266 INFO L226 Difference]: Without dead ends: 90 [2019-11-20 19:17:40,266 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 19:17:40,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-20 19:17:40,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-11-20 19:17:40,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-20 19:17:40,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2019-11-20 19:17:40,277 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 22 [2019-11-20 19:17:40,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:17:40,277 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2019-11-20 19:17:40,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 19:17:40,278 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2019-11-20 19:17:40,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 19:17:40,279 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:17:40,279 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 19:17:40,484 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:40,485 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 19:17:40,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:17:40,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1341474425, now seen corresponding path program 1 times [2019-11-20 19:17:40,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:17:40,486 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [351686242] [2019-11-20 19:17:40,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:17:40,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 19:17:40,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:17:40,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:40,730 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:17:40,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:40,813 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [351686242] [2019-11-20 19:17:40,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:17:40,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 19:17:40,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447341568] [2019-11-20 19:17:40,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 19:17:40,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:17:40,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 19:17:40,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 19:17:40,815 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand 5 states. [2019-11-20 19:17:40,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:17:40,879 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2019-11-20 19:17:40,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 19:17:40,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-20 19:17:40,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:17:40,883 INFO L225 Difference]: With dead ends: 90 [2019-11-20 19:17:40,883 INFO L226 Difference]: Without dead ends: 90 [2019-11-20 19:17:40,883 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 19:17:40,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-20 19:17:40,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-11-20 19:17:40,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-20 19:17:40,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2019-11-20 19:17:40,891 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 23 [2019-11-20 19:17:40,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:17:40,891 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2019-11-20 19:17:40,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 19:17:40,892 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2019-11-20 19:17:40,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 19:17:40,894 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:17:40,894 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 19:17:41,096 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:41,097 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 19:17:41,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:17:41,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1210682536, now seen corresponding path program 1 times [2019-11-20 19:17:41,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:17:41,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [375529779] [2019-11-20 19:17:41,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:17:41,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 19:17:41,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:17:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:41,329 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:17:41,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:41,397 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [375529779] [2019-11-20 19:17:41,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:17:41,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 19:17:41,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756455252] [2019-11-20 19:17:41,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 19:17:41,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:17:41,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 19:17:41,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 19:17:41,399 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand 3 states. [2019-11-20 19:17:41,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:17:41,536 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2019-11-20 19:17:41,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 19:17:41,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-20 19:17:41,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:17:41,538 INFO L225 Difference]: With dead ends: 126 [2019-11-20 19:17:41,538 INFO L226 Difference]: Without dead ends: 121 [2019-11-20 19:17:41,539 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 19:17:41,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-20 19:17:41,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 86. [2019-11-20 19:17:41,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-20 19:17:41,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2019-11-20 19:17:41,547 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 23 [2019-11-20 19:17:41,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:17:41,547 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2019-11-20 19:17:41,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 19:17:41,548 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2019-11-20 19:17:41,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 19:17:41,548 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:17:41,549 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 19:17:41,759 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:41,760 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 19:17:41,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:17:41,761 INFO L82 PathProgramCache]: Analyzing trace with hash -343863878, now seen corresponding path program 1 times [2019-11-20 19:17:41,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:17:41,762 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1863045244] [2019-11-20 19:17:41,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:17:42,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-20 19:17:42,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:17:42,106 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 19:17:42,106 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:17:42,111 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:17:42,112 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:17:42,112 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 19:17:42,506 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:42,506 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:17:44,185 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:17:44,889 WARN L192 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-11-20 19:17:45,554 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:45,555 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1863045244] [2019-11-20 19:17:45,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 19:17:45,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2019-11-20 19:17:45,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672015148] [2019-11-20 19:17:45,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-20 19:17:45,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:17:45,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-20 19:17:45,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2019-11-20 19:17:45,557 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand 25 states. [2019-11-20 19:17:47,505 WARN L192 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2019-11-20 19:17:47,906 WARN L192 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 29 [2019-11-20 19:17:48,431 WARN L192 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-20 19:17:48,760 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-11-20 19:17:50,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:17:50,403 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2019-11-20 19:17:50,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-20 19:17:50,404 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 28 [2019-11-20 19:17:50,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:17:50,405 INFO L225 Difference]: With dead ends: 101 [2019-11-20 19:17:50,406 INFO L226 Difference]: Without dead ends: 101 [2019-11-20 19:17:50,406 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=246, Invalid=944, Unknown=0, NotChecked=0, Total=1190 [2019-11-20 19:17:50,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-11-20 19:17:50,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2019-11-20 19:17:50,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-20 19:17:50,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2019-11-20 19:17:50,415 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 28 [2019-11-20 19:17:50,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:17:50,415 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2019-11-20 19:17:50,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-20 19:17:50,416 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2019-11-20 19:17:50,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 19:17:50,417 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:17:50,417 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 19:17:50,620 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:50,621 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 19:17:50,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:17:50,622 INFO L82 PathProgramCache]: Analyzing trace with hash 2025519899, now seen corresponding path program 1 times [2019-11-20 19:17:50,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:17:50,623 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2089292772] [2019-11-20 19:17:50,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:17:50,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 19:17:50,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:17:51,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:51,040 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:17:51,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:51,261 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2089292772] [2019-11-20 19:17:51,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 19:17:51,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 14 [2019-11-20 19:17:51,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219834616] [2019-11-20 19:17:51,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 19:17:51,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:17:51,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 19:17:51,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-20 19:17:51,263 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 14 states. [2019-11-20 19:17:51,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:17:51,717 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2019-11-20 19:17:51,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 19:17:51,719 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 35 [2019-11-20 19:17:51,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:17:51,721 INFO L225 Difference]: With dead ends: 140 [2019-11-20 19:17:51,722 INFO L226 Difference]: Without dead ends: 137 [2019-11-20 19:17:51,722 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2019-11-20 19:17:51,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-20 19:17:51,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2019-11-20 19:17:51,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-11-20 19:17:51,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2019-11-20 19:17:51,747 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 35 [2019-11-20 19:17:51,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:17:51,748 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2019-11-20 19:17:51,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 19:17:51,748 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2019-11-20 19:17:51,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 19:17:51,752 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:17:51,753 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 19:17:51,964 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:51,965 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 19:17:51,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:17:51,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1928439432, now seen corresponding path program 1 times [2019-11-20 19:17:51,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:17:51,966 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [93127590] [2019-11-20 19:17:51,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:17:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:17:52,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 19:17:52,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:17:52,285 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 19:17:52,286 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:17:52,287 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:17:52,288 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:17:52,288 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 19:17:52,392 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:17:52,392 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-20 19:17:52,394 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:17:52,415 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 19:17:52,416 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 19:17:52,416 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-20 19:17:52,445 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 19:17:52,445 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:17:56,829 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:17:56,829 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [93127590] [2019-11-20 19:17:56,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 19:17:56,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-20 19:17:56,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618600814] [2019-11-20 19:17:56,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 19:17:56,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:17:56,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 19:17:56,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=173, Unknown=1, NotChecked=0, Total=210 [2019-11-20 19:17:56,831 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 8 states. [2019-11-20 19:18:22,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:18:22,227 INFO L93 Difference]: Finished difference Result 157 states and 182 transitions. [2019-11-20 19:18:22,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 19:18:22,228 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-20 19:18:22,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:18:22,230 INFO L225 Difference]: With dead ends: 157 [2019-11-20 19:18:22,230 INFO L226 Difference]: Without dead ends: 157 [2019-11-20 19:18:22,230 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=83, Invalid=377, Unknown=2, NotChecked=0, Total=462 [2019-11-20 19:18:22,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-20 19:18:22,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 105. [2019-11-20 19:18:22,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-20 19:18:22,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2019-11-20 19:18:22,241 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 35 [2019-11-20 19:18:22,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:18:22,242 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2019-11-20 19:18:22,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 19:18:22,242 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2019-11-20 19:18:22,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 19:18:22,244 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:18:22,244 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 19:18:22,453 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:18:22,454 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 19:18:22,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:18:22,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1928439431, now seen corresponding path program 1 times [2019-11-20 19:18:22,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:18:22,456 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1338659314] [2019-11-20 19:18:22,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:18:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:18:22,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 35 conjunts are in the unsatisfiable core [2019-11-20 19:18:22,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:18:22,881 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 19:18:22,882 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:18:22,893 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:18:22,897 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 19:18:22,897 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 19:18:22,906 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:18:22,907 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:18:22,907 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 19:18:25,455 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:18:25,456 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-20 19:18:25,456 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:18:25,485 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:18:25,492 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-20 19:18:25,493 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 19:18:25,515 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:18:25,516 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 19:18:25,516 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:37, output treesize:21 [2019-11-20 19:18:25,584 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:18:25,584 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:18:25,838 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:18:28,129 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:18:28,129 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:18:28,130 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:18:28,132 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:18:28,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:18:28,134 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:18:28,135 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:18:37,543 WARN L192 SmtUtils]: Spent 5.58 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-20 19:18:37,549 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 19:18:44,490 WARN L192 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2019-11-20 19:18:48,866 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2019-11-20 19:18:49,613 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_231|], 2=[|v_#length_186|]} [2019-11-20 19:18:49,618 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 19:18:49,620 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:18:49,626 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:18:49,626 INFO L464 ElimStorePlain]: Eliminatee |v_#length_186| vanished before elimination [2019-11-20 19:18:49,627 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:18:49,627 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:30, output treesize:1 [2019-11-20 19:18:49,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:18:50,487 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-20 19:18:50,502 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 19:18:50,502 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:18:50,520 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:18:50,523 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 19:18:50,524 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 19:18:50,543 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:18:50,544 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 19:18:50,544 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:34, output treesize:17 [2019-11-20 19:18:50,764 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:18:50,764 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1338659314] [2019-11-20 19:18:50,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 19:18:50,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 29 [2019-11-20 19:18:50,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530912426] [2019-11-20 19:18:50,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-20 19:18:50,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:18:50,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-20 19:18:50,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=773, Unknown=6, NotChecked=0, Total=870 [2019-11-20 19:18:50,766 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 30 states. [2019-11-20 19:18:54,990 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|)))) is different from false [2019-11-20 19:19:30,512 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (= c_ldv_malloc_~size |c_ldv_malloc_#in~size|) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (= (_ bv0 32) |c_ldv_malloc_#res.offset|) (= (bvadd (select |c_#valid| |c_ldv_malloc_#res.base|) (_ bv1 1)) (_ bv0 1)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|) (forall ((|v_ldv_malloc_#t~malloc12.base_35| (_ BitVec 32)) (v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32)) (ldv_malloc_~size (_ BitVec 32))) (let ((.cse5 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse3 (bvadd .cse5 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse4 (bvadd .cse5 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse3)) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_35|) (_ bv0 1))) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse3 .cse4)) (bvsle .cse4 (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_35| ldv_malloc_~size) v_alloc_17_~array.base_BEFORE_CALL_4))))))) is different from false [2019-11-20 19:20:00,569 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (= (_ bv1 1) (select |c_#valid| c_entry_point_~array~0.base)) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (= c_entry_point_~i~2 (_ bv0 32)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (bvmul (_ bv4 32) c_entry_point_~len~0) (select |c_#length| c_entry_point_~array~0.base)) (bvsgt c_entry_point_~len~0 (_ bv0 32)) (= (_ bv0 32) c_entry_point_~array~0.offset)) is different from false [2019-11-20 19:20:01,281 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-11-20 19:20:03,321 WARN L192 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2019-11-20 19:20:06,177 WARN L192 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-11-20 19:20:17,298 WARN L192 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-11-20 19:21:19,752 WARN L192 SmtUtils]: Spent 8.51 s on a formula simplification. DAG size of input: 65 DAG size of output: 36 [2019-11-20 19:21:24,051 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv1 1) (select |c_#valid| c_alloc_17_~array.base)) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= c_alloc_17_~array.offset (_ bv0 32)) (= (_ bv0 32) c_alloc_17_~i~0) (exists ((entry_point_~len~0 (_ BitVec 32))) (and (not (bvslt (_ bv1 32) entry_point_~len~0)) (= (bvmul (_ bv4 32) entry_point_~len~0) (select |c_#length| c_alloc_17_~array.base)) (bvsgt entry_point_~len~0 (_ bv0 32))))) is different from false [2019-11-20 19:21:34,331 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-20 19:22:16,325 WARN L192 SmtUtils]: Spent 12.25 s on a formula simplification. DAG size of input: 46 DAG size of output: 16 [2019-11-20 19:23:17,694 WARN L192 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-11-20 19:23:23,625 WARN L192 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-20 19:24:30,209 WARN L192 SmtUtils]: Spent 26.48 s on a formula simplification. DAG size of input: 88 DAG size of output: 50 [2019-11-20 19:24:32,491 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv1 1) (select |c_#valid| c_alloc_17_~array.base)) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= |c_#valid| |c_old(#valid)|) (exists ((entry_point_~len~0 (_ BitVec 32))) (and (not (bvslt (_ bv1 32) entry_point_~len~0)) (bvsgt entry_point_~len~0 (_ bv0 32)) (= (bvmul (_ bv4 32) entry_point_~len~0) (select |c_#length| |c_alloc_17_#in~array.base|)))) (= |c_old(#length)| |c_#length|) (= c_alloc_17_~array.offset (_ bv0 32)) (= (_ bv0 32) c_alloc_17_~i~0) (= (_ bv1 1) (select |c_#valid| |c_alloc_17_#in~array.base|)) (= |c_alloc_17_#in~array.offset| (_ bv0 32)) (exists ((entry_point_~len~0 (_ BitVec 32))) (and (not (bvslt (_ bv1 32) entry_point_~len~0)) (= (bvmul (_ bv4 32) entry_point_~len~0) (select |c_#length| c_alloc_17_~array.base)) (bvsgt entry_point_~len~0 (_ bv0 32))))) is different from false [2019-11-20 19:24:45,718 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-20 19:25:15,620 WARN L192 SmtUtils]: Spent 6.43 s on a formula simplification. DAG size of input: 71 DAG size of output: 33 [2019-11-20 19:25:18,280 WARN L192 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-11-20 19:25:50,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:25:50,661 INFO L93 Difference]: Finished difference Result 281 states and 331 transitions. [2019-11-20 19:25:50,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-11-20 19:25:50,662 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 35 [2019-11-20 19:25:50,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:25:50,664 INFO L225 Difference]: With dead ends: 281 [2019-11-20 19:25:50,664 INFO L226 Difference]: Without dead ends: 281 [2019-11-20 19:25:50,666 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 39 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 235.3s TimeCoverageRelationStatistics Valid=348, Invalid=2930, Unknown=48, NotChecked=580, Total=3906 [2019-11-20 19:25:50,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-11-20 19:25:50,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 180. [2019-11-20 19:25:50,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-11-20 19:25:50,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 241 transitions. [2019-11-20 19:25:50,679 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 241 transitions. Word has length 35 [2019-11-20 19:25:50,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:25:50,679 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 241 transitions. [2019-11-20 19:25:50,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-11-20 19:25:50,680 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 241 transitions. [2019-11-20 19:25:50,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-20 19:25:50,681 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:25:50,681 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 19:25:50,884 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:25:50,885 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 19:25:50,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:25:50,886 INFO L82 PathProgramCache]: Analyzing trace with hash -2099434107, now seen corresponding path program 1 times [2019-11-20 19:25:50,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:25:50,888 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1728158442] [2019-11-20 19:25:50,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:25:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:25:51,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 19:25:51,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:25:51,139 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 19:25:51,139 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:25:51,193 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 19:25:51,194 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1728158442] [2019-11-20 19:25:51,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:25:51,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 19:25:51,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860864078] [2019-11-20 19:25:51,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 19:25:51,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:25:51,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 19:25:51,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 19:25:51,195 INFO L87 Difference]: Start difference. First operand 180 states and 241 transitions. Second operand 5 states. [2019-11-20 19:25:51,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:25:51,245 INFO L93 Difference]: Finished difference Result 175 states and 228 transitions. [2019-11-20 19:25:51,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 19:25:51,247 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-11-20 19:25:51,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:25:51,250 INFO L225 Difference]: With dead ends: 175 [2019-11-20 19:25:51,250 INFO L226 Difference]: Without dead ends: 175 [2019-11-20 19:25:51,250 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 19:25:51,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-11-20 19:25:51,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 164. [2019-11-20 19:25:51,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-11-20 19:25:51,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 214 transitions. [2019-11-20 19:25:51,258 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 214 transitions. Word has length 37 [2019-11-20 19:25:51,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:25:51,259 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 214 transitions. [2019-11-20 19:25:51,259 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 19:25:51,259 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 214 transitions. [2019-11-20 19:25:51,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-20 19:25:51,260 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:25:51,260 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 19:25:51,473 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:25:51,474 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 19:25:51,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:25:51,475 INFO L82 PathProgramCache]: Analyzing trace with hash -356623772, now seen corresponding path program 1 times [2019-11-20 19:25:51,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:25:51,476 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1008712914] [2019-11-20 19:25:51,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:25:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:25:51,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 19:25:51,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:25:51,782 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-20 19:25:51,782 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:25:51,810 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-20 19:25:51,811 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1008712914] [2019-11-20 19:25:51,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:25:51,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 19:25:51,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700336968] [2019-11-20 19:25:51,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 19:25:51,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:25:51,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 19:25:51,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 19:25:51,812 INFO L87 Difference]: Start difference. First operand 164 states and 214 transitions. Second operand 6 states. [2019-11-20 19:25:51,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:25:51,945 INFO L93 Difference]: Finished difference Result 170 states and 211 transitions. [2019-11-20 19:25:51,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 19:25:51,946 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-11-20 19:25:51,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:25:51,948 INFO L225 Difference]: With dead ends: 170 [2019-11-20 19:25:51,948 INFO L226 Difference]: Without dead ends: 170 [2019-11-20 19:25:51,949 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 19:25:51,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2019-11-20 19:25:51,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 154. [2019-11-20 19:25:51,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-20 19:25:51,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 195 transitions. [2019-11-20 19:25:51,956 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 195 transitions. Word has length 37 [2019-11-20 19:25:51,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:25:51,956 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 195 transitions. [2019-11-20 19:25:51,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 19:25:51,956 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 195 transitions. [2019-11-20 19:25:51,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-20 19:25:51,957 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:25:51,958 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 19:25:52,160 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:25:52,161 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 19:25:52,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:25:52,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1765265242, now seen corresponding path program 1 times [2019-11-20 19:25:52,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:25:52,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1904852957] [2019-11-20 19:25:52,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:25:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:25:52,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 19:25:52,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:25:52,468 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-20 19:25:52,468 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:25:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-20 19:25:52,505 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1904852957] [2019-11-20 19:25:52,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:25:52,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 19:25:52,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728977353] [2019-11-20 19:25:52,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 19:25:52,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:25:52,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 19:25:52,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 19:25:52,507 INFO L87 Difference]: Start difference. First operand 154 states and 195 transitions. Second operand 5 states. [2019-11-20 19:25:52,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:25:52,535 INFO L93 Difference]: Finished difference Result 134 states and 157 transitions. [2019-11-20 19:25:52,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 19:25:52,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2019-11-20 19:25:52,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:25:52,541 INFO L225 Difference]: With dead ends: 134 [2019-11-20 19:25:52,541 INFO L226 Difference]: Without dead ends: 134 [2019-11-20 19:25:52,542 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 19:25:52,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-11-20 19:25:52,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 121. [2019-11-20 19:25:52,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-11-20 19:25:52,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 140 transitions. [2019-11-20 19:25:52,548 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 140 transitions. Word has length 38 [2019-11-20 19:25:52,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:25:52,551 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 140 transitions. [2019-11-20 19:25:52,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 19:25:52,552 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 140 transitions. [2019-11-20 19:25:52,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-20 19:25:52,552 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:25:52,552 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 19:25:52,753 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:25:52,754 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 19:25:52,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:25:52,754 INFO L82 PathProgramCache]: Analyzing trace with hash 519015482, now seen corresponding path program 2 times [2019-11-20 19:25:52,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:25:52,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [531816907] [2019-11-20 19:25:52,756 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:25:53,076 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 19:25:53,076 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 19:25:53,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-20 19:25:53,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:25:53,110 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 19:25:53,110 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:25:53,115 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:25:53,115 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:25:53,115 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 19:25:53,873 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:25:53,873 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:25:55,394 WARN L192 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2019-11-20 19:25:56,073 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-20 19:25:56,461 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-20 19:25:56,942 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-20 19:25:57,408 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-20 19:25:58,342 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 19:26:00,506 WARN L192 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-11-20 19:26:01,237 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 19:26:01,237 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [531816907] [2019-11-20 19:26:01,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 19:26:01,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 33 [2019-11-20 19:26:01,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297167241] [2019-11-20 19:26:01,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-20 19:26:01,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:26:01,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-20 19:26:01,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=920, Unknown=0, NotChecked=0, Total=1122 [2019-11-20 19:26:01,240 INFO L87 Difference]: Start difference. First operand 121 states and 140 transitions. Second operand 34 states. [2019-11-20 19:26:03,047 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-20 19:26:04,946 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-11-20 19:26:05,581 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-11-20 19:26:07,991 WARN L192 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2019-11-20 19:26:09,702 WARN L192 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 98 DAG size of output: 29 [2019-11-20 19:26:11,638 WARN L192 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2019-11-20 19:26:13,443 WARN L192 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 29 [2019-11-20 19:26:15,256 WARN L192 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2019-11-20 19:26:17,128 WARN L192 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 28 [2019-11-20 19:26:18,960 WARN L192 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2019-11-20 19:26:20,435 WARN L192 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 29 [2019-11-20 19:26:22,037 WARN L192 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2019-11-20 19:26:23,040 WARN L192 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 29 [2019-11-20 19:26:23,801 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-20 19:26:25,357 WARN L192 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2019-11-20 19:26:25,952 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-11-20 19:26:27,573 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2019-11-20 19:26:29,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:26:29,959 INFO L93 Difference]: Finished difference Result 156 states and 205 transitions. [2019-11-20 19:26:29,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-20 19:26:29,961 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 40 [2019-11-20 19:26:29,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:26:29,962 INFO L225 Difference]: With dead ends: 156 [2019-11-20 19:26:29,963 INFO L226 Difference]: Without dead ends: 156 [2019-11-20 19:26:29,964 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 30.1s TimeCoverageRelationStatistics Valid=878, Invalid=2782, Unknown=0, NotChecked=0, Total=3660 [2019-11-20 19:26:29,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-11-20 19:26:29,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 145. [2019-11-20 19:26:29,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-11-20 19:26:29,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 172 transitions. [2019-11-20 19:26:29,973 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 172 transitions. Word has length 40 [2019-11-20 19:26:29,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:26:29,973 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 172 transitions. [2019-11-20 19:26:29,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-20 19:26:29,974 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 172 transitions. [2019-11-20 19:26:29,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-20 19:26:29,974 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:26:29,975 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 19:26:30,175 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:26:30,175 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 19:26:30,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:26:30,176 INFO L82 PathProgramCache]: Analyzing trace with hash -725997882, now seen corresponding path program 1 times [2019-11-20 19:26:30,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:26:30,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1099499757] [2019-11-20 19:26:30,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:26:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:26:30,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 19:26:30,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:26:30,475 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 19:26:30,475 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:26:30,477 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:26:30,477 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:26:30,477 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 19:26:30,532 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 19:26:30,533 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:26:30,812 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:26:30,814 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 19:26:30,820 INFO L168 Benchmark]: Toolchain (without parser) took 539049.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.7 MB). Free memory was 955.0 MB in the beginning and 1.2 GB in the end (delta: -215.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 19:26:30,820 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 19:26:30,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 823.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -101.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-20 19:26:30,821 INFO L168 Benchmark]: Boogie Preprocessor took 121.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 19:26:30,821 INFO L168 Benchmark]: RCFGBuilder took 1813.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 932.9 MB in the end (delta: 123.5 MB). Peak memory consumption was 123.5 MB. Max. memory is 11.5 GB. [2019-11-20 19:26:30,821 INFO L168 Benchmark]: TraceAbstraction took 536286.12 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 112.7 MB). Free memory was 932.9 MB in the beginning and 1.2 GB in the end (delta: -237.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 19:26:30,823 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 823.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -101.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 121.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1813.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 932.9 MB in the end (delta: 123.5 MB). Peak memory consumption was 123.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 536286.12 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 112.7 MB). Free memory was 932.9 MB in the beginning and 1.2 GB in the end (delta: -237.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...