./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a88b43a3 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_test4-2.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 46ca4cc321f66643bb303146077f836b6b81d33d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-a88b43a [2019-11-20 12:10:52,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 12:10:52,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 12:10:52,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 12:10:52,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 12:10:52,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 12:10:52,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 12:10:52,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 12:10:52,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 12:10:52,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 12:10:52,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 12:10:52,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 12:10:52,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 12:10:52,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 12:10:52,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 12:10:52,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 12:10:52,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 12:10:52,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 12:10:52,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 12:10:52,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 12:10:52,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 12:10:52,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 12:10:52,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 12:10:52,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 12:10:52,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 12:10:52,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 12:10:52,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 12:10:52,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 12:10:52,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 12:10:52,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 12:10:52,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 12:10:52,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 12:10:52,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 12:10:52,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 12:10:52,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 12:10:52,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 12:10:52,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 12:10:52,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 12:10:52,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 12:10:52,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 12:10:52,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 12:10:52,624 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-20 12:10:52,664 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 12:10:52,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 12:10:52,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 12:10:52,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 12:10:52,668 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 12:10:52,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 12:10:52,669 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 12:10:52,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 12:10:52,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 12:10:52,670 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 12:10:52,670 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 12:10:52,670 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 12:10:52,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 12:10:52,671 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 12:10:52,672 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 12:10:52,672 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 12:10:52,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 12:10:52,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 12:10:52,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 12:10:52,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 12:10:52,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 12:10:52,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 12:10:52,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 12:10:52,676 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 12:10:52,676 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 12:10:52,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 12:10:52,677 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 -> 46ca4cc321f66643bb303146077f836b6b81d33d [2019-11-20 12:10:53,009 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 12:10:53,021 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 12:10:53,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 12:10:53,025 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 12:10:53,025 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 12:10:53,026 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-20 12:10:53,093 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48443e553/f02eabd8f73947eea2a812398d65ace4/FLAGc346c03f6 [2019-11-20 12:10:53,624 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 12:10:53,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-20 12:10:53,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48443e553/f02eabd8f73947eea2a812398d65ace4/FLAGc346c03f6 [2019-11-20 12:10:53,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48443e553/f02eabd8f73947eea2a812398d65ace4 [2019-11-20 12:10:53,927 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 12:10:53,929 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 12:10:53,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 12:10:53,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 12:10:53,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 12:10:53,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:10:53" (1/1) ... [2019-11-20 12:10:53,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aaa8875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:53, skipping insertion in model container [2019-11-20 12:10:53,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:10:53" (1/1) ... [2019-11-20 12:10:53,947 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 12:10:54,016 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 12:10:54,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 12:10:54,634 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 12:10:54,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 12:10:54,826 INFO L192 MainTranslator]: Completed translation [2019-11-20 12:10:54,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:54 WrapperNode [2019-11-20 12:10:54,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 12:10:54,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 12:10:54,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 12:10:54,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 12:10:54,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:54" (1/1) ... [2019-11-20 12:10:54,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:54" (1/1) ... [2019-11-20 12:10:54,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:54" (1/1) ... [2019-11-20 12:10:54,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:54" (1/1) ... [2019-11-20 12:10:54,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:54" (1/1) ... [2019-11-20 12:10:54,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:54" (1/1) ... [2019-11-20 12:10:54,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:54" (1/1) ... [2019-11-20 12:10:54,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 12:10:54,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 12:10:54,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 12:10:54,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 12:10:54,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 12:10:55,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 12:10:55,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 12:10:55,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 12:10:55,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 12:10:55,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 12:10:55,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 12:10:55,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 12:10:55,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 12:10:55,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 12:10:55,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 12:10:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 12:10:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 12:10:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 12:10:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 12:10:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 12:10:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 12:10:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 12:10:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 12:10:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 12:10:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 12:10:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 12:10:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 12:10:55,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 12:10:55,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 12:10:55,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 12:10:55,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 12:10:55,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 12:10:55,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 12:10:55,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 12:10:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 12:10:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 12:10:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 12:10:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 12:10:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 12:10:55,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 12:10:55,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 12:10:55,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 12:10:55,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 12:10:55,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 12:10:55,021 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 12:10:55,021 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 12:10:55,021 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 12:10:55,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 12:10:55,022 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 12:10:55,022 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 12:10:55,022 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 12:10:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 12:10:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 12:10:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 12:10:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 12:10:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 12:10:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 12:10:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 12:10:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 12:10:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 12:10:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 12:10:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 12:10:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 12:10:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 12:10:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 12:10:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 12:10:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 12:10:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 12:10:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 12:10:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 12:10:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 12:10:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 12:10:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 12:10:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 12:10:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 12:10:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 12:10:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 12:10:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 12:10:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 12:10:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 12:10:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 12:10:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 12:10:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 12:10:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 12:10:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 12:10:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 12:10:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 12:10:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 12:10:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 12:10:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 12:10:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 12:10:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 12:10:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 12:10:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 12:10:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 12:10:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 12:10:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 12:10:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 12:10:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 12:10:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 12:10:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 12:10:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 12:10:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 12:10:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 12:10:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 12:10:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 12:10:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 12:10:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 12:10:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 12:10:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 12:10:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 12:10:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 12:10:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 12:10:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 12:10:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 12:10:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 12:10:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 12:10:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 12:10:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 12:10:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 12:10:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 12:10:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 12:10:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 12:10:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 12:10:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 12:10:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 12:10:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 12:10:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 12:10:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 12:10:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 12:10:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 12:10:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 12:10:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 12:10:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 12:10:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 12:10:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 12:10:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 12:10:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 12:10:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 12:10:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 12:10:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 12:10:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 12:10:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 12:10:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 12:10:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 12:10:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 12:10:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 12:10:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 12:10:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 12:10:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 12:10:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 12:10:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 12:10:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 12:10:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 12:10:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 12:10:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 12:10:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 12:10:55,045 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 12:10:55,045 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 12:10:55,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 12:10:55,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 12:10:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 12:10:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 12:10:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 12:10:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 12:10:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 12:10:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 12:10:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 12:10:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 12:10:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 12:10:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 12:10:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 12:10:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 12:10:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 12:10:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 12:10:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 12:10:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 12:10:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 12:10:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 12:10:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 12:10:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 12:10:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 12:10:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 12:10:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 12:10:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 12:10:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 12:10:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 12:10:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 12:10:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 12:10:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 12:10:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 12:10:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 12:10:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 12:10:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 12:10:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 12:10:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 12:10:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 12:10:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 12:10:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 12:10:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 12:10:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 12:10:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 12:10:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 12:10:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 12:10:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 12:10:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 12:10:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 12:10:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 12:10:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 12:10:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 12:10:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 12:10:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 12:10:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 12:10:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 12:10:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 12:10:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 12:10:55,730 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 12:10:56,111 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 12:10:56,487 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 12:10:56,488 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 12:10:56,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:56 BoogieIcfgContainer [2019-11-20 12:10:56,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 12:10:56,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 12:10:56,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 12:10:56,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 12:10:56,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:10:53" (1/3) ... [2019-11-20 12:10:56,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b53411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:10:56, skipping insertion in model container [2019-11-20 12:10:56,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:54" (2/3) ... [2019-11-20 12:10:56,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b53411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:10:56, skipping insertion in model container [2019-11-20 12:10:56,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:56" (3/3) ... [2019-11-20 12:10:56,499 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2019-11-20 12:10:56,509 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 12:10:56,518 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2019-11-20 12:10:56,530 INFO L249 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2019-11-20 12:10:56,552 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 12:10:56,553 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 12:10:56,553 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 12:10:56,553 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 12:10:56,553 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 12:10:56,554 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 12:10:56,554 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 12:10:56,554 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 12:10:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-11-20 12:10:56,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 12:10:56,588 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:10:56,589 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:10:56,590 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 12:10:56,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:10:56,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1299630744, now seen corresponding path program 1 times [2019-11-20 12:10:56,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:10:56,611 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [594568052] [2019-11-20 12:10:56,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:10:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:10:56,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 12:10:56,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:10:57,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 12:10:57,012 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:10:57,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 12:10:57,133 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [594568052] [2019-11-20 12:10:57,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 12:10:57,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 12:10:57,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121339429] [2019-11-20 12:10:57,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 12:10:57,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:10:57,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 12:10:57,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:10:57,168 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 5 states. [2019-11-20 12:10:57,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:10:57,253 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2019-11-20 12:10:57,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 12:10:57,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-20 12:10:57,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:10:57,272 INFO L225 Difference]: With dead ends: 53 [2019-11-20 12:10:57,273 INFO L226 Difference]: Without dead ends: 50 [2019-11-20 12:10:57,275 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 [2019-11-20 12:10:57,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-20 12:10:57,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2019-11-20 12:10:57,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 12:10:57,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-11-20 12:10:57,356 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2019-11-20 12:10:57,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:10:57,358 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-11-20 12:10:57,359 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 12:10:57,359 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-11-20 12:10:57,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 12:10:57,362 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:10:57,362 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:10:57,566 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:10:57,567 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 12:10:57,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:10:57,568 INFO L82 PathProgramCache]: Analyzing trace with hash 443179591, now seen corresponding path program 1 times [2019-11-20 12:10:57,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:10:57,570 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1865463762] [2019-11-20 12:10:57,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:10:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:10:57,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 12:10:57,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:10:57,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 12:10:57,843 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:10:57,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 12:10:57,908 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1865463762] [2019-11-20 12:10:57,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 12:10:57,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 12:10:57,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355025160] [2019-11-20 12:10:57,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 12:10:57,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:10:57,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 12:10:57,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 12:10:57,912 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 3 states. [2019-11-20 12:10:57,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:10:57,990 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-20 12:10:57,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 12:10:57,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-20 12:10:57,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:10:57,993 INFO L225 Difference]: With dead ends: 46 [2019-11-20 12:10:57,993 INFO L226 Difference]: Without dead ends: 43 [2019-11-20 12:10:57,994 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 12:10:57,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-20 12:10:58,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2019-11-20 12:10:58,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 12:10:58,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-20 12:10:58,011 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 16 [2019-11-20 12:10:58,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:10:58,012 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-20 12:10:58,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 12:10:58,012 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-20 12:10:58,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 12:10:58,015 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:10:58,015 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:10:58,222 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:10:58,224 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 12:10:58,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:10:58,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1246513499, now seen corresponding path program 1 times [2019-11-20 12:10:58,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:10:58,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [171843778] [2019-11-20 12:10:58,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:10:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:10:58,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 12:10:58,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:10:58,482 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 12:10:58,483 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:10:58,522 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 12:10:58,523 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [171843778] [2019-11-20 12:10:58,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 12:10:58,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 12:10:58,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043478140] [2019-11-20 12:10:58,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 12:10:58,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:10:58,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 12:10:58,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:10:58,525 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2019-11-20 12:10:58,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:10:58,541 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-11-20 12:10:58,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 12:10:58,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-20 12:10:58,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:10:58,543 INFO L225 Difference]: With dead ends: 30 [2019-11-20 12:10:58,543 INFO L226 Difference]: Without dead ends: 30 [2019-11-20 12:10:58,544 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:10:58,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-20 12:10:58,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-20 12:10:58,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 12:10:58,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-20 12:10:58,549 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2019-11-20 12:10:58,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:10:58,550 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-20 12:10:58,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 12:10:58,550 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-20 12:10:58,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 12:10:58,551 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:10:58,552 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:10:58,754 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:10:58,755 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 12:10:58,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:10:58,755 INFO L82 PathProgramCache]: Analyzing trace with hash -12786823, now seen corresponding path program 1 times [2019-11-20 12:10:58,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:10:58,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1839892418] [2019-11-20 12:10:58,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:10:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:10:59,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 12:10:59,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:10:59,097 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 12:10:59,097 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:10:59,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 12:10:59,191 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1839892418] [2019-11-20 12:10:59,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 12:10:59,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-20 12:10:59,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877380199] [2019-11-20 12:10:59,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 12:10:59,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:10:59,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 12:10:59,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 12:10:59,194 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 9 states. [2019-11-20 12:10:59,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:10:59,350 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-11-20 12:10:59,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 12:10:59,352 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2019-11-20 12:10:59,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:10:59,353 INFO L225 Difference]: With dead ends: 29 [2019-11-20 12:10:59,353 INFO L226 Difference]: Without dead ends: 29 [2019-11-20 12:10:59,354 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 12:10:59,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-20 12:10:59,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-20 12:10:59,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-20 12:10:59,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-20 12:10:59,359 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 21 [2019-11-20 12:10:59,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:10:59,360 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-20 12:10:59,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 12:10:59,360 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-20 12:10:59,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 12:10:59,361 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:10:59,361 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:10:59,569 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:10:59,570 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 12:10:59,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:10:59,571 INFO L82 PathProgramCache]: Analyzing trace with hash -396391139, now seen corresponding path program 1 times [2019-11-20 12:10:59,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:10:59,572 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1611542769] [2019-11-20 12:10:59,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:10:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:10:59,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 12:10:59,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:10:59,862 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 12:10:59,862 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 12:10:59,865 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 12:10:59,865 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 12:10:59,866 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 12:10:59,899 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 12:10:59,900 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:10:59,950 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 12:10:59,950 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1611542769] [2019-11-20 12:10:59,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 12:10:59,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 12:10:59,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771524335] [2019-11-20 12:10:59,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 12:10:59,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:10:59,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 12:10:59,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:10:59,953 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 5 states. [2019-11-20 12:11:00,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:11:00,012 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-20 12:11:00,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 12:11:00,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 12:11:00,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:11:00,014 INFO L225 Difference]: With dead ends: 35 [2019-11-20 12:11:00,015 INFO L226 Difference]: Without dead ends: 35 [2019-11-20 12:11:00,015 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:11:00,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-20 12:11:00,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-20 12:11:00,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 12:11:00,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-20 12:11:00,021 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 22 [2019-11-20 12:11:00,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:11:00,022 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-20 12:11:00,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 12:11:00,022 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-20 12:11:00,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 12:11:00,022 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:11:00,023 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:11:00,224 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:00,227 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 12:11:00,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:11:00,228 INFO L82 PathProgramCache]: Analyzing trace with hash 491112542, now seen corresponding path program 1 times [2019-11-20 12:11:00,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:11:00,229 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [433556458] [2019-11-20 12:11:00,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:11:00,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 12:11:00,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:11:00,477 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 12:11:00,477 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:11:00,509 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 12:11:00,509 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [433556458] [2019-11-20 12:11:00,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 12:11:00,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 12:11:00,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141648157] [2019-11-20 12:11:00,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 12:11:00,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:11:00,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 12:11:00,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:11:00,511 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2019-11-20 12:11:00,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:11:00,537 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2019-11-20 12:11:00,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 12:11:00,538 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 12:11:00,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:11:00,540 INFO L225 Difference]: With dead ends: 42 [2019-11-20 12:11:00,540 INFO L226 Difference]: Without dead ends: 42 [2019-11-20 12:11:00,540 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:11:00,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-20 12:11:00,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2019-11-20 12:11:00,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-20 12:11:00,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-11-20 12:11:00,545 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 22 [2019-11-20 12:11:00,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:11:00,545 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-11-20 12:11:00,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 12:11:00,546 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-11-20 12:11:00,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 12:11:00,547 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:11:00,547 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:11:00,749 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:00,750 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 12:11:00,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:11:00,751 INFO L82 PathProgramCache]: Analyzing trace with hash 596776955, now seen corresponding path program 1 times [2019-11-20 12:11:00,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:11:00,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1170474583] [2019-11-20 12:11:00,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:11:00,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 12:11:00,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:11:00,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 12:11:00,996 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:11:01,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 12:11:01,035 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1170474583] [2019-11-20 12:11:01,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 12:11:01,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-20 12:11:01,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676600449] [2019-11-20 12:11:01,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 12:11:01,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:11:01,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 12:11:01,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:11:01,038 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 5 states. [2019-11-20 12:11:01,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:11:01,052 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-11-20 12:11:01,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 12:11:01,052 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-20 12:11:01,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:11:01,053 INFO L225 Difference]: With dead ends: 27 [2019-11-20 12:11:01,053 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 12:11:01,054 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:11:01,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 12:11:01,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-20 12:11:01,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 12:11:01,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-11-20 12:11:01,057 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2019-11-20 12:11:01,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:11:01,058 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-11-20 12:11:01,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 12:11:01,058 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-11-20 12:11:01,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 12:11:01,059 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:11:01,059 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:11:01,261 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:01,262 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 12:11:01,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:11:01,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1320216799, now seen corresponding path program 1 times [2019-11-20 12:11:01,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:11:01,264 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1244533581] [2019-11-20 12:11:01,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:11:01,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 12:11:01,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:11:01,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 12:11:01,606 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:11:01,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 12:11:01,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1244533581] [2019-11-20 12:11:01,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 12:11:01,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-20 12:11:01,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699744801] [2019-11-20 12:11:01,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 12:11:01,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:11:01,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 12:11:01,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 12:11:01,702 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2019-11-20 12:11:01,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:11:01,814 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-11-20 12:11:01,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 12:11:01,815 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-20 12:11:01,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:11:01,816 INFO L225 Difference]: With dead ends: 26 [2019-11-20 12:11:01,816 INFO L226 Difference]: Without dead ends: 26 [2019-11-20 12:11:01,816 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 12:11:01,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-20 12:11:01,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-20 12:11:01,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-20 12:11:01,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-11-20 12:11:01,820 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 24 [2019-11-20 12:11:01,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:11:01,820 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-11-20 12:11:01,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 12:11:01,820 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-11-20 12:11:01,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 12:11:01,821 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:11:01,822 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:11:02,023 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:02,024 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 12:11:02,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:11:02,024 INFO L82 PathProgramCache]: Analyzing trace with hash -2022951811, now seen corresponding path program 1 times [2019-11-20 12:11:02,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:11:02,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1803738448] [2019-11-20 12:11:02,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:11:02,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 12:11:02,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:11:02,299 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 12:11:02,299 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 12:11:02,301 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 12:11:02,301 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 12:11:02,301 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 12:11:02,383 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 12:11:02,384 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-20 12:11:02,385 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 12:11:02,415 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 12:11:02,415 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 12:11:02,416 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-20 12:11:02,485 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2019-11-20 12:11:02,486 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 12:11:02,498 INFO L567 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2019-11-20 12:11:02,500 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 12:11:02,500 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2019-11-20 12:11:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 12:11:02,529 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:11:02,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 12:11:02,752 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1803738448] [2019-11-20 12:11:02,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 12:11:02,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 13 [2019-11-20 12:11:02,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393768550] [2019-11-20 12:11:02,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 12:11:02,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:11:02,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 12:11:02,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-20 12:11:02,754 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2019-11-20 12:11:04,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:11:04,959 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-20 12:11:04,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 12:11:04,959 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2019-11-20 12:11:04,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:11:04,961 INFO L225 Difference]: With dead ends: 46 [2019-11-20 12:11:04,961 INFO L226 Difference]: Without dead ends: 46 [2019-11-20 12:11:04,962 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-20 12:11:04,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-20 12:11:04,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2019-11-20 12:11:04,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-20 12:11:04,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-11-20 12:11:04,968 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 25 [2019-11-20 12:11:04,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:11:04,969 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-11-20 12:11:04,969 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 12:11:04,969 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-11-20 12:11:04,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 12:11:04,970 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:11:04,970 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:11:05,180 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:05,181 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 12:11:05,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:11:05,181 INFO L82 PathProgramCache]: Analyzing trace with hash 2075501980, now seen corresponding path program 1 times [2019-11-20 12:11:05,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:11:05,182 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [707236780] [2019-11-20 12:11:05,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:11:05,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 12:11:05,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:11:05,471 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 12:11:05,471 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 12:11:05,476 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 12:11:05,477 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 12:11:05,477 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2019-11-20 12:11:05,597 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-20 12:11:05,598 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 12:11:05,609 INFO L567 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2019-11-20 12:11:05,609 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 12:11:05,609 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:13 [2019-11-20 12:11:05,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 12:11:05,631 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:11:05,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 12:11:05,804 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [707236780] [2019-11-20 12:11:05,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 12:11:05,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2019-11-20 12:11:05,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270650835] [2019-11-20 12:11:05,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-20 12:11:05,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:11:05,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-20 12:11:05,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-11-20 12:11:05,807 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 15 states. [2019-11-20 12:11:06,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:11:06,418 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2019-11-20 12:11:06,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-20 12:11:06,419 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2019-11-20 12:11:06,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:11:06,420 INFO L225 Difference]: With dead ends: 49 [2019-11-20 12:11:06,420 INFO L226 Difference]: Without dead ends: 49 [2019-11-20 12:11:06,421 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2019-11-20 12:11:06,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-20 12:11:06,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2019-11-20 12:11:06,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-20 12:11:06,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-11-20 12:11:06,427 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 25 [2019-11-20 12:11:06,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:11:06,427 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-11-20 12:11:06,427 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-20 12:11:06,428 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-11-20 12:11:06,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 12:11:06,429 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:11:06,429 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:11:06,631 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:06,632 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 12:11:06,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:11:06,633 INFO L82 PathProgramCache]: Analyzing trace with hash -669642114, now seen corresponding path program 2 times [2019-11-20 12:11:06,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:11:06,634 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [392572659] [2019-11-20 12:11:06,634 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 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:06,874 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 12:11:06,875 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 12:11:06,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 12:11:06,877 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:11:06,891 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 12:11:06,892 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:11:06,918 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 12:11:06,918 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [392572659] [2019-11-20 12:11:06,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 12:11:06,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-20 12:11:06,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490582181] [2019-11-20 12:11:06,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 12:11:06,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:11:06,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 12:11:06,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:11:06,921 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 5 states. [2019-11-20 12:11:06,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:11:06,949 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2019-11-20 12:11:06,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 12:11:06,950 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-20 12:11:06,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:11:06,951 INFO L225 Difference]: With dead ends: 39 [2019-11-20 12:11:06,952 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 12:11:06,952 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:11:06,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 12:11:06,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 25. [2019-11-20 12:11:06,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 12:11:06,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-20 12:11:06,957 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 25 [2019-11-20 12:11:06,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:11:06,957 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-20 12:11:06,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 12:11:06,958 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-20 12:11:06,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 12:11:06,958 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:11:06,959 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:11:07,161 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:07,162 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 12:11:07,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:11:07,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1224078522, now seen corresponding path program 1 times [2019-11-20 12:11:07,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:11:07,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [83796046] [2019-11-20 12:11:07,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:11:07,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-20 12:11:07,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:11:07,472 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 12:11:07,473 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 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-20 12:11:07,474 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 12:11:07,492 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-20 12:11:07,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 12:11:07,495 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 12:11:07,496 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-20 12:11:07,496 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 12:11:07,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 12:11:07,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 12:11:07,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 12:11:09,941 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 12:11:10,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 12:11:10,053 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:11:10,260 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-11-20 12:11:14,599 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:11:14,600 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 12:11:14,608 INFO L168 Benchmark]: Toolchain (without parser) took 20679.29 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 305.7 MB). Free memory was 956.3 MB in the beginning and 998.0 MB in the end (delta: -41.6 MB). Peak memory consumption was 264.0 MB. Max. memory is 11.5 GB. [2019-11-20 12:11:14,609 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 12:11:14,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 896.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -129.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-20 12:11:14,610 INFO L168 Benchmark]: Boogie Preprocessor took 111.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-20 12:11:14,611 INFO L168 Benchmark]: RCFGBuilder took 1550.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 973.2 MB in the end (delta: 106.2 MB). Peak memory consumption was 106.2 MB. Max. memory is 11.5 GB. [2019-11-20 12:11:14,611 INFO L168 Benchmark]: TraceAbstraction took 18115.49 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 186.6 MB). Free memory was 973.2 MB in the beginning and 998.0 MB in the end (delta: -24.7 MB). Peak memory consumption was 161.9 MB. Max. memory is 11.5 GB. [2019-11-20 12:11:14,621 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 896.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -129.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 111.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1550.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 973.2 MB in the end (delta: 106.2 MB). Peak memory consumption was 106.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18115.49 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 186.6 MB). Free memory was 973.2 MB in the beginning and 998.0 MB in the end (delta: -24.7 MB). Peak memory consumption was 161.9 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...