./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4e7f10697bf40be831ee927139b8f7b8ae344247 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-264dba8 [2019-11-21 14:11:04,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 14:11:04,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 14:11:04,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 14:11:04,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 14:11:04,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 14:11:04,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 14:11:04,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 14:11:04,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 14:11:04,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 14:11:04,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 14:11:04,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 14:11:04,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 14:11:04,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 14:11:04,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 14:11:04,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 14:11:04,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 14:11:04,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 14:11:04,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 14:11:04,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 14:11:04,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 14:11:04,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 14:11:04,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 14:11:04,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 14:11:04,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 14:11:04,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 14:11:04,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 14:11:04,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 14:11:04,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 14:11:04,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 14:11:04,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 14:11:04,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 14:11:04,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 14:11:04,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 14:11:04,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 14:11:04,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 14:11:04,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 14:11:04,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 14:11:04,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 14:11:04,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 14:11:04,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 14:11:04,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 14:11:04,465 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 14:11:04,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 14:11:04,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 14:11:04,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 14:11:04,472 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 14:11:04,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 14:11:04,472 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 14:11:04,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 14:11:04,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 14:11:04,475 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 14:11:04,475 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 14:11:04,476 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 14:11:04,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 14:11:04,476 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 14:11:04,476 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 14:11:04,477 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 14:11:04,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 14:11:04,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 14:11:04,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 14:11:04,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 14:11:04,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 14:11:04,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 14:11:04,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 14:11:04,479 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 14:11:04,479 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 14:11:04,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 14:11:04,480 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e7f10697bf40be831ee927139b8f7b8ae344247 [2019-11-21 14:11:04,810 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 14:11:04,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 14:11:04,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 14:11:04,830 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 14:11:04,831 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 14:11:04,832 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-21 14:11:04,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/661d10add/df9e391e8c3545919612371ba762e669/FLAG96a31e6ae [2019-11-21 14:11:05,460 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 14:11:05,461 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-21 14:11:05,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/661d10add/df9e391e8c3545919612371ba762e669/FLAG96a31e6ae [2019-11-21 14:11:05,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/661d10add/df9e391e8c3545919612371ba762e669 [2019-11-21 14:11:05,742 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 14:11:05,744 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 14:11:05,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 14:11:05,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 14:11:05,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 14:11:05,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:11:05" (1/1) ... [2019-11-21 14:11:05,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c16723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:11:05, skipping insertion in model container [2019-11-21 14:11:05,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:11:05" (1/1) ... [2019-11-21 14:11:05,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 14:11:05,808 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 14:11:06,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 14:11:06,356 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 14:11:06,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 14:11:06,535 INFO L205 MainTranslator]: Completed translation [2019-11-21 14:11:06,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:11:06 WrapperNode [2019-11-21 14:11:06,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 14:11:06,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 14:11:06,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 14:11:06,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 14:11:06,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:11:06" (1/1) ... [2019-11-21 14:11:06,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:11:06" (1/1) ... [2019-11-21 14:11:06,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:11:06" (1/1) ... [2019-11-21 14:11:06,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:11:06" (1/1) ... [2019-11-21 14:11:06,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:11:06" (1/1) ... [2019-11-21 14:11:06,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:11:06" (1/1) ... [2019-11-21 14:11:06,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:11:06" (1/1) ... [2019-11-21 14:11:06,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 14:11:06,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 14:11:06,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 14:11:06,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 14:11:06,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:11:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 14:11:06,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 14:11:06,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 14:11:06,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 14:11:06,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 14:11:06,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 14:11:06,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 14:11:06,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 14:11:06,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 14:11:06,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 14:11:06,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 14:11:06,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 14:11:06,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 14:11:06,721 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 14:11:06,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 14:11:06,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 14:11:06,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 14:11:06,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 14:11:06,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 14:11:06,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 14:11:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 14:11:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 14:11:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 14:11:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 14:11:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 14:11:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 14:11:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 14:11:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 14:11:06,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 14:11:06,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 14:11:06,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 14:11:06,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 14:11:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 14:11:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 14:11:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 14:11:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 14:11:06,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 14:11:06,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 14:11:06,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 14:11:06,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 14:11:06,728 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 14:11:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 14:11:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-21 14:11:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-21 14:11:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 14:11:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 14:11:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 14:11:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 14:11:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 14:11:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 14:11:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 14:11:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 14:11:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 14:11:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 14:11:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 14:11:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 14:11:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 14:11:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 14:11:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 14:11:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 14:11:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 14:11:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 14:11:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 14:11:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 14:11:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 14:11:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 14:11:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 14:11:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 14:11:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 14:11:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 14:11:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 14:11:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 14:11:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 14:11:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 14:11:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 14:11:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 14:11:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 14:11:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 14:11:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 14:11:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 14:11:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 14:11:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 14:11:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 14:11:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 14:11:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 14:11:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 14:11:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 14:11:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 14:11:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 14:11:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 14:11:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 14:11:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 14:11:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 14:11:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 14:11:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 14:11:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 14:11:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 14:11:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 14:11:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 14:11:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 14:11:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 14:11:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 14:11:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 14:11:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 14:11:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 14:11:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 14:11:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 14:11:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 14:11:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 14:11:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 14:11:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 14:11:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 14:11:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 14:11:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 14:11:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 14:11:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 14:11:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 14:11:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 14:11:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 14:11:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 14:11:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 14:11:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 14:11:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 14:11:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 14:11:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 14:11:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 14:11:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 14:11:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 14:11:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 14:11:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 14:11:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 14:11:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 14:11:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 14:11:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 14:11:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 14:11:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 14:11:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 14:11:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 14:11:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 14:11:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 14:11:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 14:11:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 14:11:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 14:11:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 14:11:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 14:11:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 14:11:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 14:11:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 14:11:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 14:11:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 14:11:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 14:11:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 14:11:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 14:11:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 14:11:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 14:11:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 14:11:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 14:11:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 14:11:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 14:11:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 14:11:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 14:11:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 14:11:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 14:11:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 14:11:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 14:11:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 14:11:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 14:11:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 14:11:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 14:11:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 14:11:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 14:11:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 14:11:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 14:11:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 14:11:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 14:11:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 14:11:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 14:11:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 14:11:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 14:11:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 14:11:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 14:11:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 14:11:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 14:11:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 14:11:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 14:11:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 14:11:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 14:11:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 14:11:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 14:11:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 14:11:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 14:11:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 14:11:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 14:11:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 14:11:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 14:11:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 14:11:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 14:11:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 14:11:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 14:11:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 14:11:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 14:11:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 14:11:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 14:11:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 14:11:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-21 14:11:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-21 14:11:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 14:11:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 14:11:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 14:11:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 14:11:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 14:11:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 14:11:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 14:11:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 14:11:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 14:11:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 14:11:07,442 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 14:11:07,829 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 14:11:08,365 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 14:11:08,366 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-21 14:11:08,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:11:08 BoogieIcfgContainer [2019-11-21 14:11:08,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 14:11:08,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 14:11:08,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 14:11:08,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 14:11:08,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:11:05" (1/3) ... [2019-11-21 14:11:08,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ec6b61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:11:08, skipping insertion in model container [2019-11-21 14:11:08,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:11:06" (2/3) ... [2019-11-21 14:11:08,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ec6b61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:11:08, skipping insertion in model container [2019-11-21 14:11:08,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:11:08" (3/3) ... [2019-11-21 14:11:08,379 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-2.i [2019-11-21 14:11:08,389 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 14:11:08,399 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-21 14:11:08,412 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-21 14:11:08,435 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 14:11:08,435 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 14:11:08,435 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 14:11:08,436 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 14:11:08,436 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 14:11:08,436 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 14:11:08,436 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 14:11:08,436 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 14:11:08,466 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-11-21 14:11:08,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 14:11:08,478 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:11:08,479 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:11:08,481 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:11:08,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:11:08,488 INFO L82 PathProgramCache]: Analyzing trace with hash 658326159, now seen corresponding path program 1 times [2019-11-21 14:11:08,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:11:08,501 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [631177749] [2019-11-21 14:11:08,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:11:08,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:11:08,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:11:08,919 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:11:08,920 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:11:08,931 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:11:08,931 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:11:08,932 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 14:11:08,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:08,974 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:11:09,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:09,052 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [631177749] [2019-11-21 14:11:09,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:11:09,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 14:11:09,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096052019] [2019-11-21 14:11:09,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:11:09,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:11:09,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:11:09,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:11:09,100 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 5 states. [2019-11-21 14:11:09,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:11:09,439 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2019-11-21 14:11:09,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:11:09,445 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 14:11:09,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:11:09,465 INFO L225 Difference]: With dead ends: 87 [2019-11-21 14:11:09,466 INFO L226 Difference]: Without dead ends: 84 [2019-11-21 14:11:09,468 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:11:09,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-21 14:11:09,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2019-11-21 14:11:09,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-21 14:11:09,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2019-11-21 14:11:09,537 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 16 [2019-11-21 14:11:09,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:11:09,538 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2019-11-21 14:11:09,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:11:09,538 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2019-11-21 14:11:09,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 14:11:09,540 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:11:09,540 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:11:09,746 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:09,747 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:11:09,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:11:09,747 INFO L82 PathProgramCache]: Analyzing trace with hash 658326160, now seen corresponding path program 1 times [2019-11-21 14:11:09,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:11:09,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1653651548] [2019-11-21 14:11:09,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:11:10,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 14:11:10,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:11:10,088 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:11:10,089 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:11:10,096 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:11:10,096 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:11:10,096 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 14:11:10,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:10,175 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:11:10,775 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2019-11-21 14:11:11,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:11,018 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1653651548] [2019-11-21 14:11:11,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:11:11,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-21 14:11:11,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864622348] [2019-11-21 14:11:11,021 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 14:11:11,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:11:11,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 14:11:11,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-21 14:11:11,025 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand 14 states. [2019-11-21 14:11:12,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:11:12,632 INFO L93 Difference]: Finished difference Result 95 states and 111 transitions. [2019-11-21 14:11:12,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 14:11:12,634 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-21 14:11:12,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:11:12,636 INFO L225 Difference]: With dead ends: 95 [2019-11-21 14:11:12,636 INFO L226 Difference]: Without dead ends: 95 [2019-11-21 14:11:12,637 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2019-11-21 14:11:12,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-21 14:11:12,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 85. [2019-11-21 14:11:12,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-11-21 14:11:12,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2019-11-21 14:11:12,650 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 16 [2019-11-21 14:11:12,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:11:12,651 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 97 transitions. [2019-11-21 14:11:12,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 14:11:12,651 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2019-11-21 14:11:12,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 14:11:12,652 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:11:12,652 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:11:12,856 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:12,858 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:11:12,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:11:12,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1545829840, now seen corresponding path program 1 times [2019-11-21 14:11:12,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:11:12,861 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [970812710] [2019-11-21 14:11:12,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:11:13,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 14:11:13,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:11:13,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:13,158 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:11:13,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:13,210 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [970812710] [2019-11-21 14:11:13,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:11:13,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 14:11:13,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545513580] [2019-11-21 14:11:13,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:11:13,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:11:13,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:11:13,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:11:13,213 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. Second operand 5 states. [2019-11-21 14:11:13,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:11:13,284 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2019-11-21 14:11:13,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:11:13,284 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 14:11:13,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:11:13,286 INFO L225 Difference]: With dead ends: 84 [2019-11-21 14:11:13,286 INFO L226 Difference]: Without dead ends: 84 [2019-11-21 14:11:13,288 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:11:13,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-21 14:11:13,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-21 14:11:13,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-21 14:11:13,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2019-11-21 14:11:13,311 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 16 [2019-11-21 14:11:13,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:11:13,311 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2019-11-21 14:11:13,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:11:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2019-11-21 14:11:13,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 14:11:13,312 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:11:13,312 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:11:13,513 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:13,514 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:11:13,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:11:13,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1065898717, now seen corresponding path program 1 times [2019-11-21 14:11:13,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:11:13,515 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [965918830] [2019-11-21 14:11:13,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:11:13,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:11:13,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:11:13,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:13,791 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:11:13,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:13,872 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [965918830] [2019-11-21 14:11:13,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:11:13,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 14:11:13,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777095693] [2019-11-21 14:11:13,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:11:13,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:11:13,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:11:13,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:11:13,873 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 5 states. [2019-11-21 14:11:13,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:11:13,931 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2019-11-21 14:11:13,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:11:13,932 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 14:11:13,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:11:13,934 INFO L225 Difference]: With dead ends: 84 [2019-11-21 14:11:13,934 INFO L226 Difference]: Without dead ends: 84 [2019-11-21 14:11:13,934 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:11:13,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-21 14:11:13,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-21 14:11:13,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-21 14:11:13,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2019-11-21 14:11:13,943 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 17 [2019-11-21 14:11:13,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:11:13,944 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2019-11-21 14:11:13,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:11:13,944 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2019-11-21 14:11:13,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 14:11:13,945 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:11:13,945 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:11:14,146 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:14,147 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:11:14,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:11:14,148 INFO L82 PathProgramCache]: Analyzing trace with hash 676911618, now seen corresponding path program 1 times [2019-11-21 14:11:14,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:11:14,150 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1679369550] [2019-11-21 14:11:14,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:11:14,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 14:11:14,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:11:14,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:14,383 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:11:14,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:14,448 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1679369550] [2019-11-21 14:11:14,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:11:14,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 14:11:14,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296974527] [2019-11-21 14:11:14,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 14:11:14,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:11:14,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 14:11:14,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 14:11:14,450 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 3 states. [2019-11-21 14:11:14,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:11:14,596 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2019-11-21 14:11:14,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 14:11:14,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-21 14:11:14,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:11:14,599 INFO L225 Difference]: With dead ends: 120 [2019-11-21 14:11:14,599 INFO L226 Difference]: Without dead ends: 115 [2019-11-21 14:11:14,600 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 14:11:14,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-21 14:11:14,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 80. [2019-11-21 14:11:14,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-21 14:11:14,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-11-21 14:11:14,607 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 17 [2019-11-21 14:11:14,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:11:14,607 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2019-11-21 14:11:14,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 14:11:14,608 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2019-11-21 14:11:14,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 14:11:14,609 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:11:14,609 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:11:14,820 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:14,821 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:11:14,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:11:14,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1457557360, now seen corresponding path program 1 times [2019-11-21 14:11:14,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:11:14,823 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1271271709] [2019-11-21 14:11:14,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:11:15,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-21 14:11:15,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:11:15,113 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:11:15,114 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:11:15,120 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:11:15,121 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:11:15,121 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 14:11:15,257 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:15,258 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:11:16,118 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:11:16,494 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-21 14:11:16,906 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:16,907 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1271271709] [2019-11-21 14:11:16,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:11:16,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2019-11-21 14:11:16,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778355547] [2019-11-21 14:11:16,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-21 14:11:16,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:11:16,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-21 14:11:16,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-21 14:11:16,909 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 19 states. [2019-11-21 14:11:17,885 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2019-11-21 14:11:18,489 WARN L192 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 14:11:19,458 WARN L192 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 14:11:20,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:11:20,394 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2019-11-21 14:11:20,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-21 14:11:20,395 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2019-11-21 14:11:20,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:11:20,396 INFO L225 Difference]: With dead ends: 97 [2019-11-21 14:11:20,396 INFO L226 Difference]: Without dead ends: 97 [2019-11-21 14:11:20,397 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2019-11-21 14:11:20,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-21 14:11:20,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2019-11-21 14:11:20,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-21 14:11:20,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2019-11-21 14:11:20,404 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 22 [2019-11-21 14:11:20,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:11:20,405 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2019-11-21 14:11:20,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-21 14:11:20,405 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2019-11-21 14:11:20,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 14:11:20,407 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:11:20,407 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:11:20,610 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:20,611 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:11:20,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:11:20,612 INFO L82 PathProgramCache]: Analyzing trace with hash 2122432263, now seen corresponding path program 1 times [2019-11-21 14:11:20,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:11:20,613 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1278030524] [2019-11-21 14:11:20,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:11:20,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 14:11:20,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:11:20,978 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:20,979 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:11:21,113 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:21,114 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1278030524] [2019-11-21 14:11:21,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:11:21,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-21 14:11:21,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127370111] [2019-11-21 14:11:21,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-21 14:11:21,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:11:21,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-21 14:11:21,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-21 14:11:21,116 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand 12 states. [2019-11-21 14:11:21,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:11:21,503 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2019-11-21 14:11:21,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 14:11:21,506 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2019-11-21 14:11:21,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:11:21,507 INFO L225 Difference]: With dead ends: 98 [2019-11-21 14:11:21,507 INFO L226 Difference]: Without dead ends: 98 [2019-11-21 14:11:21,507 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-11-21 14:11:21,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-21 14:11:21,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2019-11-21 14:11:21,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-21 14:11:21,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2019-11-21 14:11:21,526 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 35 [2019-11-21 14:11:21,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:11:21,526 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2019-11-21 14:11:21,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-21 14:11:21,527 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2019-11-21 14:11:21,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-21 14:11:21,528 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:11:21,528 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:11:21,731 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:21,732 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:11:21,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:11:21,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1647594640, now seen corresponding path program 2 times [2019-11-21 14:11:21,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:11:21,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [885753716] [2019-11-21 14:11:21,733 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 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:22,075 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-21 14:11:22,075 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 14:11:22,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-21 14:11:22,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:11:22,105 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:11:22,106 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:11:22,116 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:11:22,117 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:11:22,117 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 14:11:22,380 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:22,380 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:11:24,535 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:11:24,920 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-21 14:11:25,364 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:25,364 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [885753716] [2019-11-21 14:11:25,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:11:25,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2019-11-21 14:11:25,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266923984] [2019-11-21 14:11:25,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-11-21 14:11:25,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:11:25,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-11-21 14:11:25,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2019-11-21 14:11:25,366 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand 27 states. [2019-11-21 14:11:27,153 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2019-11-21 14:11:28,055 WARN L192 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 14:11:28,589 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 14:11:29,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:11:29,790 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2019-11-21 14:11:29,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-21 14:11:29,791 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 34 [2019-11-21 14:11:29,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:11:29,792 INFO L225 Difference]: With dead ends: 108 [2019-11-21 14:11:29,792 INFO L226 Difference]: Without dead ends: 108 [2019-11-21 14:11:29,794 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=302, Invalid=1420, Unknown=0, NotChecked=0, Total=1722 [2019-11-21 14:11:29,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-11-21 14:11:29,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2019-11-21 14:11:29,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-21 14:11:29,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2019-11-21 14:11:29,800 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 34 [2019-11-21 14:11:29,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:11:29,800 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2019-11-21 14:11:29,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-11-21 14:11:29,801 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2019-11-21 14:11:29,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-21 14:11:29,802 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:11:29,803 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:11:30,006 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:30,007 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:11:30,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:11:30,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1226889072, now seen corresponding path program 3 times [2019-11-21 14:11:30,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:11:30,009 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [225182513] [2019-11-21 14:11:30,009 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:30,571 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-21 14:11:30,572 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 14:11:30,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-21 14:11:30,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:11:30,942 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:30,942 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:11:33,036 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:33,036 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [225182513] [2019-11-21 14:11:33,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:11:33,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22] total 38 [2019-11-21 14:11:33,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033016838] [2019-11-21 14:11:33,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-11-21 14:11:33,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:11:33,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-11-21 14:11:33,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1146, Unknown=0, NotChecked=0, Total=1406 [2019-11-21 14:11:33,039 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand 38 states. [2019-11-21 14:11:34,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:11:34,761 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2019-11-21 14:11:34,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-21 14:11:34,761 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 46 [2019-11-21 14:11:34,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:11:34,762 INFO L225 Difference]: With dead ends: 101 [2019-11-21 14:11:34,763 INFO L226 Difference]: Without dead ends: 101 [2019-11-21 14:11:34,764 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=285, Invalid=1197, Unknown=0, NotChecked=0, Total=1482 [2019-11-21 14:11:34,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-11-21 14:11:34,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-11-21 14:11:34,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-21 14:11:34,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 106 transitions. [2019-11-21 14:11:34,768 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 106 transitions. Word has length 46 [2019-11-21 14:11:34,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:11:34,769 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 106 transitions. [2019-11-21 14:11:34,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-11-21 14:11:34,769 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 106 transitions. [2019-11-21 14:11:34,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 14:11:34,771 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:11:34,772 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:11:34,974 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:34,975 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:11:34,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:11:34,976 INFO L82 PathProgramCache]: Analyzing trace with hash -2119706825, now seen corresponding path program 2 times [2019-11-21 14:11:34,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:11:34,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [159215870] [2019-11-21 14:11:34,978 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:35,243 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 14:11:35,243 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 14:11:35,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:11:35,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:11:35,281 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 14:11:35,281 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:11:35,357 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 14:11:35,358 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [159215870] [2019-11-21 14:11:35,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:11:35,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-21 14:11:35,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390880031] [2019-11-21 14:11:35,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 14:11:35,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:11:35,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 14:11:35,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-21 14:11:35,359 INFO L87 Difference]: Start difference. First operand 101 states and 106 transitions. Second operand 7 states. [2019-11-21 14:11:35,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:11:35,469 INFO L93 Difference]: Finished difference Result 132 states and 141 transitions. [2019-11-21 14:11:35,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 14:11:35,471 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-21 14:11:35,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:11:35,473 INFO L225 Difference]: With dead ends: 132 [2019-11-21 14:11:35,473 INFO L226 Difference]: Without dead ends: 129 [2019-11-21 14:11:35,474 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-21 14:11:35,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-11-21 14:11:35,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 102. [2019-11-21 14:11:35,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-21 14:11:35,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2019-11-21 14:11:35,479 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 56 [2019-11-21 14:11:35,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:11:35,480 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2019-11-21 14:11:35,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 14:11:35,480 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2019-11-21 14:11:35,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 14:11:35,482 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:11:35,482 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:11:35,685 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:35,686 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:11:35,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:11:35,687 INFO L82 PathProgramCache]: Analyzing trace with hash -852929006, now seen corresponding path program 1 times [2019-11-21 14:11:35,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:11:35,688 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2044711613] [2019-11-21 14:11:35,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:11:36,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 14:11:36,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:11:36,161 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:11:36,161 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:11:36,163 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:11:36,163 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:11:36,164 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 14:11:36,274 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:11:36,275 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 17 treesize of output 39 [2019-11-21 14:11:36,275 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:11:36,297 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 14:11:36,298 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 14:11:36,298 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-21 14:11:36,352 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 14:11:36,352 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:11:38,781 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-21 14:11:38,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2044711613] [2019-11-21 14:11:38,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 14:11:38,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-21 14:11:38,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868227535] [2019-11-21 14:11:38,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 14:11:38,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:11:38,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 14:11:38,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=173, Unknown=1, NotChecked=0, Total=210 [2019-11-21 14:11:38,785 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand 8 states. [2019-11-21 14:11:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:11:59,301 INFO L93 Difference]: Finished difference Result 159 states and 177 transitions. [2019-11-21 14:11:59,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 14:11:59,302 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-21 14:11:59,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:11:59,305 INFO L225 Difference]: With dead ends: 159 [2019-11-21 14:11:59,305 INFO L226 Difference]: Without dead ends: 159 [2019-11-21 14:11:59,305 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=83, Invalid=378, Unknown=1, NotChecked=0, Total=462 [2019-11-21 14:11:59,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-11-21 14:11:59,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 108. [2019-11-21 14:11:59,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-21 14:11:59,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 117 transitions. [2019-11-21 14:11:59,312 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 117 transitions. Word has length 56 [2019-11-21 14:11:59,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:11:59,312 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 117 transitions. [2019-11-21 14:11:59,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 14:11:59,312 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 117 transitions. [2019-11-21 14:11:59,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 14:11:59,313 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:11:59,314 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:11:59,518 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:11:59,519 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:11:59,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:11:59,520 INFO L82 PathProgramCache]: Analyzing trace with hash -852929005, now seen corresponding path program 1 times [2019-11-21 14:11:59,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:11:59,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1911157908] [2019-11-21 14:11:59,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:12:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:12:00,143 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-21 14:12:00,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:12:00,187 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:12:00,187 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:12:00,209 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:12:00,219 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:12:00,219 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:12:00,229 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:12:00,230 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:12:00,230 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 14:12:02,501 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 14:12:02,504 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-21 14:12:02,504 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:12:02,529 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:12:02,539 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:12:02,540 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-21 14:12:02,540 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:12:02,553 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:12:02,554 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:12:02,554 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2019-11-21 14:12:02,596 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 14:12:02,596 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:12:02,780 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:12:03,161 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2019-11-21 14:12:03,162 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:12:03,163 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:12:03,163 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:12:03,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:12:03,166 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:12:03,167 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:12:03,168 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:12:03,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:12:08,672 WARN L192 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 14:12:08,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:12:15,201 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_256|], 2=[|v_#length_214|]} [2019-11-21 14:12:15,220 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 14:12:15,221 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:12:15,232 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:12:15,234 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 14:12:15,234 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:12:15,243 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:12:15,244 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:12:15,244 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-21 14:12:15,973 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 14:12:15,990 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 14:12:15,990 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:12:16,015 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:12:16,019 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 14:12:16,019 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:12:16,037 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:12:16,038 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 14:12:16,038 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-21 14:12:16,192 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 14:12:16,192 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1911157908] [2019-11-21 14:12:16,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:12:16,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-21 14:12:16,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516637646] [2019-11-21 14:12:16,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-21 14:12:16,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:12:16,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-21 14:12:16,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=407, Unknown=3, NotChecked=0, Total=462 [2019-11-21 14:12:16,195 INFO L87 Difference]: Start difference. First operand 108 states and 117 transitions. Second operand 22 states. [2019-11-21 14:12:20,757 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 12 [2019-11-21 14:12:45,789 WARN L192 SmtUtils]: Spent 6.21 s on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-11-21 14:13:07,055 WARN L192 SmtUtils]: Spent 4.31 s on a formula simplification. DAG size of input: 59 DAG size of output: 30 [2019-11-21 14:13:16,641 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 14:13:21,013 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-21 14:13:39,833 WARN L192 SmtUtils]: Spent 4.19 s on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-11-21 14:13:42,973 WARN L192 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 26 [2019-11-21 14:13:55,704 WARN L192 SmtUtils]: Spent 8.22 s on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2019-11-21 14:14:09,615 WARN L192 SmtUtils]: Spent 8.32 s on a formula simplification. DAG size of input: 66 DAG size of output: 36 [2019-11-21 14:14:42,235 WARN L192 SmtUtils]: Spent 8.13 s on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2019-11-21 14:15:22,241 WARN L192 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-11-21 14:15:26,924 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2019-11-21 14:15:45,218 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (bvmul c_alloc_17_~i~0 (_ bv8 32)))) (let ((.cse0 (bvadd .cse5 c_alloc_17_~array.offset)) (.cse4 (bvadd .cse5 c_alloc_17_~array.offset (_ bv8 32)))) (and (bvsle (_ bv0 32) .cse0) (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 ((.cse3 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv8 32)))) (let ((.cse1 (bvadd .cse3 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse2 (bvadd .cse3 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv8 32)))) (or (not (bvsle .cse1 .cse2)) (not (bvsle (_ bv0 32) .cse1)) (exists ((v_prenex_15 (_ BitVec 32)) (v_ldv_malloc_~size_52 (_ BitVec 32))) (and (= (select |c_old(#valid)| v_prenex_15) (_ bv0 1)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv8 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv8 32)) (select (store |c_old(#length)| v_prenex_15 v_ldv_malloc_~size_52) v_alloc_17_~array.base_BEFORE_CALL_4))))) (bvsle .cse2 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)))))) (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|))) (bvsle .cse0 .cse4) (exists ((v_prenex_16 (_ BitVec 32))) (= (select |c_old(#valid)| v_prenex_16) (_ bv0 1))) (bvsle .cse4 (select |c_#length| c_alloc_17_~array.base))))) is different from false [2019-11-21 14:15:45,655 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-21 14:16:08,409 WARN L192 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 77 DAG size of output: 45 [2019-11-21 14:16:17,532 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 18 [2019-11-21 14:16:45,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:16:45,079 INFO L93 Difference]: Finished difference Result 330 states and 381 transitions. [2019-11-21 14:16:45,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-11-21 14:16:45,080 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-21 14:16:45,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:16:45,082 INFO L225 Difference]: With dead ends: 330 [2019-11-21 14:16:45,083 INFO L226 Difference]: Without dead ends: 330 [2019-11-21 14:16:45,084 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 90 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 104.8s TimeCoverageRelationStatistics Valid=282, Invalid=1774, Unknown=18, NotChecked=88, Total=2162 [2019-11-21 14:16:45,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-11-21 14:16:45,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 149. [2019-11-21 14:16:45,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-11-21 14:16:45,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 182 transitions. [2019-11-21 14:16:45,094 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 182 transitions. Word has length 56 [2019-11-21 14:16:45,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:16:45,095 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 182 transitions. [2019-11-21 14:16:45,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-21 14:16:45,095 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 182 transitions. [2019-11-21 14:16:45,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 14:16:45,096 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:16:45,096 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 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] [2019-11-21 14:16:45,300 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:45,301 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:16:45,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:16:45,301 INFO L82 PathProgramCache]: Analyzing trace with hash 673934239, now seen corresponding path program 1 times [2019-11-21 14:16:45,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:16:45,302 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [623247438] [2019-11-21 14:16:45,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:16:45,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:16:45,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:16:45,609 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 14:16:45,609 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:16:45,645 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 14:16:45,645 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [623247438] [2019-11-21 14:16:45,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:16:45,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 14:16:45,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33290332] [2019-11-21 14:16:45,646 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:16:45,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:16:45,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:16:45,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:16:45,647 INFO L87 Difference]: Start difference. First operand 149 states and 182 transitions. Second operand 5 states. [2019-11-21 14:16:45,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:16:45,708 INFO L93 Difference]: Finished difference Result 162 states and 195 transitions. [2019-11-21 14:16:45,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 14:16:45,708 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-21 14:16:45,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:16:45,710 INFO L225 Difference]: With dead ends: 162 [2019-11-21 14:16:45,711 INFO L226 Difference]: Without dead ends: 162 [2019-11-21 14:16:45,711 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 14:16:45,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-21 14:16:45,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 151. [2019-11-21 14:16:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-21 14:16:45,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 182 transitions. [2019-11-21 14:16:45,719 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 182 transitions. Word has length 58 [2019-11-21 14:16:45,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:16:45,719 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 182 transitions. [2019-11-21 14:16:45,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:16:45,720 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 182 transitions. [2019-11-21 14:16:45,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 14:16:45,721 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:16:45,721 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 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] [2019-11-21 14:16:45,924 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:45,924 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:16:45,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:16:45,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1878222722, now seen corresponding path program 1 times [2019-11-21 14:16:45,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:16:45,926 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1327564227] [2019-11-21 14:16:45,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:16:46,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 14:16:46,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:16:46,374 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 14:16:46,374 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:16:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 14:16:46,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1327564227] [2019-11-21 14:16:46,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:16:46,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 14:16:46,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725464760] [2019-11-21 14:16:46,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 14:16:46,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:16:46,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 14:16:46,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 14:16:46,414 INFO L87 Difference]: Start difference. First operand 151 states and 182 transitions. Second operand 6 states. [2019-11-21 14:16:46,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:16:46,565 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2019-11-21 14:16:46,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:16:46,567 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-21 14:16:46,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:16:46,569 INFO L225 Difference]: With dead ends: 160 [2019-11-21 14:16:46,569 INFO L226 Difference]: Without dead ends: 160 [2019-11-21 14:16:46,570 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-21 14:16:46,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-11-21 14:16:46,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 153. [2019-11-21 14:16:46,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-21 14:16:46,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 184 transitions. [2019-11-21 14:16:46,579 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 184 transitions. Word has length 58 [2019-11-21 14:16:46,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:16:46,579 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 184 transitions. [2019-11-21 14:16:46,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 14:16:46,580 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 184 transitions. [2019-11-21 14:16:46,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-21 14:16:46,581 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:16:46,581 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:16:46,785 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:46,785 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:16:46,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:16:46,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1249334386, now seen corresponding path program 1 times [2019-11-21 14:16:46,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:16:46,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1035907832] [2019-11-21 14:16:46,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:16:47,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 14:16:47,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:16:47,218 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:16:47,218 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:16:47,222 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:16:47,222 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:16:47,222 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 14:16:47,286 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 14:16:47,286 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:16:47,569 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:47,570 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 14:16:47,582 INFO L168 Benchmark]: Toolchain (without parser) took 341832.80 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 358.1 MB). Free memory was 957.7 MB in the beginning and 948.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 367.4 MB. Max. memory is 11.5 GB. [2019-11-21 14:16:47,586 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 14:16:47,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-11-21 14:16:47,587 INFO L168 Benchmark]: Boogie Preprocessor took 116.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 14:16:47,588 INFO L168 Benchmark]: RCFGBuilder took 1714.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 987.5 MB in the end (delta: 117.8 MB). Peak memory consumption was 117.8 MB. Max. memory is 11.5 GB. [2019-11-21 14:16:47,588 INFO L168 Benchmark]: TraceAbstraction took 339204.22 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 207.6 MB). Free memory was 980.8 MB in the beginning and 948.4 MB in the end (delta: 32.4 MB). Peak memory consumption was 240.1 MB. Max. memory is 11.5 GB. [2019-11-21 14:16:47,590 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 791.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 116.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1714.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 987.5 MB in the end (delta: 117.8 MB). Peak memory consumption was 117.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 339204.22 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 207.6 MB). Free memory was 980.8 MB in the beginning and 948.4 MB in the end (delta: 32.4 MB). Peak memory consumption was 240.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...