./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 12:26:13,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 12:26:13,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 12:26:13,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 12:26:13,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 12:26:13,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 12:26:13,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 12:26:13,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 12:26:13,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 12:26:13,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 12:26:13,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 12:26:13,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 12:26:13,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 12:26:13,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 12:26:13,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 12:26:13,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 12:26:13,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 12:26:13,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 12:26:13,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 12:26:13,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 12:26:13,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 12:26:13,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 12:26:13,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 12:26:13,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 12:26:13,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 12:26:13,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 12:26:13,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 12:26:13,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 12:26:13,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 12:26:13,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 12:26:13,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 12:26:13,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 12:26:13,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 12:26:13,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 12:26:13,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 12:26:13,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 12:26:13,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 12:26:13,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 12:26:13,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 12:26:13,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 12:26:13,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 12:26:13,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 12:26:13,842 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 12:26:13,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 12:26:13,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 12:26:13,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 12:26:13,845 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 12:26:13,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 12:26:13,845 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 12:26:13,846 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 12:26:13,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 12:26:13,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 12:26:13,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 12:26:13,847 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 12:26:13,847 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 12:26:13,847 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 12:26:13,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 12:26:13,848 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 12:26:13,848 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 12:26:13,848 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 12:26:13,849 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 12:26:13,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 12:26:13,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 12:26:13,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 12:26:13,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 12:26:13,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 12:26:13,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 12:26:13,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 12:26:13,851 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 12:26:13,851 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 12:26:13,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 12:26:13,852 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46ca4cc321f66643bb303146077f836b6b81d33d [2019-11-20 12:26:14,146 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 12:26:14,160 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 12:26:14,163 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 12:26:14,165 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 12:26:14,165 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 12:26:14,166 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-20 12:26:14,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8149d1160/f33d8eb13eae440eb8e2718a26b68c2b/FLAG27738883d [2019-11-20 12:26:14,764 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 12:26:14,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-20 12:26:14,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8149d1160/f33d8eb13eae440eb8e2718a26b68c2b/FLAG27738883d [2019-11-20 12:26:15,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8149d1160/f33d8eb13eae440eb8e2718a26b68c2b [2019-11-20 12:26:15,082 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 12:26:15,084 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 12:26:15,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 12:26:15,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 12:26:15,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 12:26:15,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:26:15" (1/1) ... [2019-11-20 12:26:15,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b1c1594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:15, skipping insertion in model container [2019-11-20 12:26:15,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:26:15" (1/1) ... [2019-11-20 12:26:15,104 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 12:26:15,168 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 12:26:15,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 12:26:15,699 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 12:26:15,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 12:26:15,850 INFO L192 MainTranslator]: Completed translation [2019-11-20 12:26:15,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:15 WrapperNode [2019-11-20 12:26:15,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 12:26:15,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 12:26:15,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 12:26:15,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 12:26:15,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:15" (1/1) ... [2019-11-20 12:26:15,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:15" (1/1) ... [2019-11-20 12:26:15,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:15" (1/1) ... [2019-11-20 12:26:15,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:15" (1/1) ... [2019-11-20 12:26:15,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:15" (1/1) ... [2019-11-20 12:26:15,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:15" (1/1) ... [2019-11-20 12:26:15,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:15" (1/1) ... [2019-11-20 12:26:15,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 12:26:15,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 12:26:15,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 12:26:15,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 12:26:15,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:15" (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 12:26:16,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 12:26:16,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 12:26:16,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 12:26:16,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 12:26:16,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 12:26:16,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 12:26:16,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 12:26:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 12:26:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 12:26:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 12:26:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 12:26:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 12:26:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 12:26:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 12:26:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 12:26:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 12:26:16,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 12:26:16,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 12:26:16,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 12:26:16,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 12:26:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 12:26:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 12:26:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 12:26:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 12:26:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 12:26:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 12:26:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 12:26:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 12:26:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 12:26:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 12:26:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 12:26:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 12:26:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 12:26:16,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 12:26:16,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 12:26:16,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 12:26:16,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 12:26:16,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 12:26:16,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 12:26:16,052 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 12:26:16,052 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 12:26:16,052 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 12:26:16,052 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 12:26:16,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 12:26:16,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 12:26:16,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 12:26:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 12:26:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 12:26:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 12:26:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 12:26:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 12:26:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 12:26:16,055 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 12:26:16,055 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 12:26:16,055 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 12:26:16,055 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 12:26:16,055 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 12:26:16,056 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 12:26:16,056 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 12:26:16,056 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 12:26:16,056 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 12:26:16,056 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 12:26:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 12:26:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 12:26:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 12:26:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 12:26:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 12:26:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 12:26:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 12:26:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 12:26:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 12:26:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 12:26:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 12:26:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 12:26:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 12:26:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 12:26:16,060 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 12:26:16,060 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 12:26:16,060 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 12:26:16,060 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 12:26:16,060 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 12:26:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 12:26:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 12:26:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 12:26:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 12:26:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 12:26:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 12:26:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 12:26:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 12:26:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 12:26:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 12:26:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 12:26:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 12:26:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 12:26:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 12:26:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 12:26:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 12:26:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 12:26:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 12:26:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 12:26:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 12:26:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 12:26:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 12:26:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 12:26:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 12:26:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 12:26:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 12:26:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 12:26:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 12:26:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 12:26:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 12:26:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 12:26:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 12:26:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 12:26:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 12:26:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 12:26:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 12:26:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 12:26:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 12:26:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 12:26:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 12:26:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 12:26:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 12:26:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 12:26:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 12:26:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 12:26:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 12:26:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 12:26:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 12:26:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 12:26:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 12:26:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 12:26:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 12:26:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 12:26:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 12:26:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 12:26:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 12:26:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 12:26:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 12:26:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 12:26:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 12:26:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 12:26:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 12:26:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 12:26:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 12:26:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 12:26:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 12:26:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 12:26:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 12:26:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 12:26:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 12:26:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 12:26:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 12:26:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 12:26:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 12:26:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 12:26:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 12:26:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 12:26:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 12:26:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 12:26:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 12:26:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 12:26:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 12:26:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 12:26:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 12:26:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 12:26:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 12:26:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 12:26:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 12:26:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 12:26:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 12:26:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 12:26:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 12:26:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 12:26:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 12:26:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 12:26:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 12:26:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 12:26:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 12:26:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 12:26:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 12:26:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 12:26:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 12:26:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 12:26:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 12:26:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 12:26:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 12:26:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 12:26:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 12:26:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 12:26:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 12:26:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 12:26:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 12:26:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 12:26:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 12:26:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 12:26:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 12:26:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 12:26:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 12:26:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 12:26:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 12:26:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 12:26:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 12:26:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 12:26:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 12:26:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 12:26:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 12:26:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 12:26:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 12:26:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 12:26:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 12:26:16,746 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 12:26:17,205 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 12:26:17,615 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 12:26:17,615 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 12:26:17,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:17 BoogieIcfgContainer [2019-11-20 12:26:17,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 12:26:17,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 12:26:17,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 12:26:17,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 12:26:17,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:26:15" (1/3) ... [2019-11-20 12:26:17,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65862a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:26:17, skipping insertion in model container [2019-11-20 12:26:17,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:15" (2/3) ... [2019-11-20 12:26:17,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65862a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:26:17, skipping insertion in model container [2019-11-20 12:26:17,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:17" (3/3) ... [2019-11-20 12:26:17,625 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2019-11-20 12:26:17,635 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 12:26:17,644 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2019-11-20 12:26:17,656 INFO L249 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2019-11-20 12:26:17,677 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 12:26:17,678 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 12:26:17,678 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 12:26:17,678 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 12:26:17,678 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 12:26:17,679 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 12:26:17,679 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 12:26:17,679 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 12:26:17,698 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-11-20 12:26:17,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 12:26:17,709 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:26:17,710 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:26:17,711 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 12:26:17,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:26:17,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1299630744, now seen corresponding path program 1 times [2019-11-20 12:26:17,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:26:17,730 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1078533968] [2019-11-20 12:26:17,731 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 12:26:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:26:18,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 12:26:18,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:26:18,140 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 12:26:18,141 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:26:18,274 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 12:26:18,276 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1078533968] [2019-11-20 12:26:18,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 12:26:18,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 12:26:18,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351899037] [2019-11-20 12:26:18,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 12:26:18,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:26:18,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 12:26:18,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:26:18,312 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 5 states. [2019-11-20 12:26:18,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:26:18,397 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2019-11-20 12:26:18,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 12:26:18,401 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-20 12:26:18,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:26:18,414 INFO L225 Difference]: With dead ends: 53 [2019-11-20 12:26:18,414 INFO L226 Difference]: Without dead ends: 50 [2019-11-20 12:26:18,416 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 12:26:18,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-20 12:26:18,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2019-11-20 12:26:18,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 12:26:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-11-20 12:26:18,479 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2019-11-20 12:26:18,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:26:18,480 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-11-20 12:26:18,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 12:26:18,480 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-11-20 12:26:18,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 12:26:18,482 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:26:18,482 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:26:18,685 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:26:18,686 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 12:26:18,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:26:18,688 INFO L82 PathProgramCache]: Analyzing trace with hash 443179591, now seen corresponding path program 1 times [2019-11-20 12:26:18,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:26:18,689 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1512343268] [2019-11-20 12:26:18,690 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 12:26:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:26:18,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 12:26:18,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:26:18,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 12:26:18,976 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:26:19,048 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 12:26:19,048 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1512343268] [2019-11-20 12:26:19,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 12:26:19,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 12:26:19,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996224704] [2019-11-20 12:26:19,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 12:26:19,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:26:19,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 12:26:19,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 12:26:19,053 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 3 states. [2019-11-20 12:26:19,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:26:19,119 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-20 12:26:19,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 12:26:19,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-20 12:26:19,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:26:19,122 INFO L225 Difference]: With dead ends: 46 [2019-11-20 12:26:19,122 INFO L226 Difference]: Without dead ends: 43 [2019-11-20 12:26:19,123 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 12:26:19,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-20 12:26:19,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2019-11-20 12:26:19,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 12:26:19,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-20 12:26:19,135 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 16 [2019-11-20 12:26:19,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:26:19,136 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-20 12:26:19,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 12:26:19,136 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-20 12:26:19,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 12:26:19,139 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:26:19,140 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 12:26:19,344 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:26:19,347 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 12:26:19,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:26:19,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1246513499, now seen corresponding path program 1 times [2019-11-20 12:26:19,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:26:19,352 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [847276746] [2019-11-20 12:26:19,352 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 12:26:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:26:19,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 12:26:19,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:26:19,659 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 12:26:19,659 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:26:19,711 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 12:26:19,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [847276746] [2019-11-20 12:26:19,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 12:26:19,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 12:26:19,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133413984] [2019-11-20 12:26:19,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 12:26:19,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:26:19,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 12:26:19,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:26:19,717 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2019-11-20 12:26:19,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:26:19,735 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-11-20 12:26:19,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 12:26:19,736 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-20 12:26:19,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:26:19,737 INFO L225 Difference]: With dead ends: 30 [2019-11-20 12:26:19,737 INFO L226 Difference]: Without dead ends: 30 [2019-11-20 12:26:19,739 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 12:26:19,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-20 12:26:19,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-20 12:26:19,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 12:26:19,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-20 12:26:19,748 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2019-11-20 12:26:19,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:26:19,748 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-20 12:26:19,749 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 12:26:19,749 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-20 12:26:19,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 12:26:19,750 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:26:19,751 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 12:26:19,953 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:26:19,954 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 12:26:19,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:26:19,955 INFO L82 PathProgramCache]: Analyzing trace with hash -12786823, now seen corresponding path program 1 times [2019-11-20 12:26:19,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:26:19,959 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1880233808] [2019-11-20 12:26:19,959 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 12:26:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:26:20,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 12:26:20,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:26:20,408 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 12:26:20,408 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:26:20,513 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 12:26:20,514 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1880233808] [2019-11-20 12:26:20,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 12:26:20,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-20 12:26:20,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385781711] [2019-11-20 12:26:20,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 12:26:20,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:26:20,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 12:26:20,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 12:26:20,516 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 9 states. [2019-11-20 12:26:20,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:26:20,668 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-11-20 12:26:20,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 12:26:20,672 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2019-11-20 12:26:20,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:26:20,673 INFO L225 Difference]: With dead ends: 29 [2019-11-20 12:26:20,673 INFO L226 Difference]: Without dead ends: 29 [2019-11-20 12:26:20,674 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 12:26:20,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-20 12:26:20,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-20 12:26:20,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-20 12:26:20,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-20 12:26:20,679 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 21 [2019-11-20 12:26:20,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:26:20,679 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-20 12:26:20,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 12:26:20,680 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-20 12:26:20,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 12:26:20,681 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:26:20,681 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 12:26:20,883 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:26:20,884 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 12:26:20,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:26:20,885 INFO L82 PathProgramCache]: Analyzing trace with hash -396391139, now seen corresponding path program 1 times [2019-11-20 12:26:20,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:26:20,886 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2114324023] [2019-11-20 12:26:20,887 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 12:26:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:26:21,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 12:26:21,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:26:21,225 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 12:26:21,226 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 12:26:21,231 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 12:26:21,232 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 12:26:21,232 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 12:26:21,261 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 12:26:21,261 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:26:21,309 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 12:26:21,310 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2114324023] [2019-11-20 12:26:21,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 12:26:21,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 12:26:21,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191638543] [2019-11-20 12:26:21,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 12:26:21,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:26:21,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 12:26:21,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:26:21,312 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 5 states. [2019-11-20 12:26:21,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:26:21,371 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-20 12:26:21,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 12:26:21,371 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 12:26:21,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:26:21,372 INFO L225 Difference]: With dead ends: 35 [2019-11-20 12:26:21,372 INFO L226 Difference]: Without dead ends: 35 [2019-11-20 12:26:21,373 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 12:26:21,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-20 12:26:21,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-20 12:26:21,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 12:26:21,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-20 12:26:21,382 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 22 [2019-11-20 12:26:21,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:26:21,382 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-20 12:26:21,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 12:26:21,382 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-20 12:26:21,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 12:26:21,383 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:26:21,383 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 12:26:21,593 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:26:21,594 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 12:26:21,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:26:21,595 INFO L82 PathProgramCache]: Analyzing trace with hash 491112542, now seen corresponding path program 1 times [2019-11-20 12:26:21,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:26:21,596 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1559672385] [2019-11-20 12:26:21,596 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 12:26:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:26:21,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 12:26:21,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:26:21,842 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 12:26:21,842 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:26:21,869 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 12:26:21,872 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1559672385] [2019-11-20 12:26:21,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 12:26:21,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 12:26:21,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467882021] [2019-11-20 12:26:21,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 12:26:21,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:26:21,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 12:26:21,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:26:21,874 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2019-11-20 12:26:21,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:26:21,906 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2019-11-20 12:26:21,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 12:26:21,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 12:26:21,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:26:21,909 INFO L225 Difference]: With dead ends: 42 [2019-11-20 12:26:21,909 INFO L226 Difference]: Without dead ends: 42 [2019-11-20 12:26:21,909 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 12:26:21,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-20 12:26:21,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2019-11-20 12:26:21,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-20 12:26:21,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-11-20 12:26:21,919 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 22 [2019-11-20 12:26:21,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:26:21,919 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-11-20 12:26:21,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 12:26:21,920 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-11-20 12:26:21,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 12:26:21,920 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:26:21,921 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 12:26:22,121 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:26:22,122 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 12:26:22,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:26:22,123 INFO L82 PathProgramCache]: Analyzing trace with hash 596776955, now seen corresponding path program 1 times [2019-11-20 12:26:22,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:26:22,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [621327942] [2019-11-20 12:26:22,124 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 12:26:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:26:22,343 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 12:26:22,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:26:22,365 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 12:26:22,365 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:26:22,413 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 12:26:22,414 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [621327942] [2019-11-20 12:26:22,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 12:26:22,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-20 12:26:22,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200881660] [2019-11-20 12:26:22,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 12:26:22,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:26:22,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 12:26:22,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:26:22,417 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 5 states. [2019-11-20 12:26:22,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:26:22,432 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-11-20 12:26:22,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 12:26:22,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-20 12:26:22,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:26:22,434 INFO L225 Difference]: With dead ends: 27 [2019-11-20 12:26:22,434 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 12:26:22,434 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 12:26:22,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 12:26:22,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-20 12:26:22,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 12:26:22,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-11-20 12:26:22,437 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2019-11-20 12:26:22,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:26:22,438 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-11-20 12:26:22,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 12:26:22,438 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-11-20 12:26:22,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 12:26:22,439 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:26:22,439 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 12:26:22,645 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:26:22,646 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 12:26:22,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:26:22,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1320216799, now seen corresponding path program 1 times [2019-11-20 12:26:22,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:26:22,647 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1355062422] [2019-11-20 12:26:22,648 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 12:26:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:26:22,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 12:26:22,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:26:22,992 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 12:26:22,992 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:26:23,086 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 12:26:23,086 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1355062422] [2019-11-20 12:26:23,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 12:26:23,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-20 12:26:23,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332066196] [2019-11-20 12:26:23,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 12:26:23,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:26:23,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 12:26:23,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 12:26:23,089 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2019-11-20 12:26:23,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:26:23,181 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-11-20 12:26:23,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 12:26:23,182 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-20 12:26:23,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:26:23,183 INFO L225 Difference]: With dead ends: 26 [2019-11-20 12:26:23,183 INFO L226 Difference]: Without dead ends: 26 [2019-11-20 12:26:23,184 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 12:26:23,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-20 12:26:23,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-20 12:26:23,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-20 12:26:23,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-11-20 12:26:23,187 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 24 [2019-11-20 12:26:23,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:26:23,188 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-11-20 12:26:23,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 12:26:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-11-20 12:26:23,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 12:26:23,189 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:26:23,189 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 12:26:23,392 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:26:23,393 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 12:26:23,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:26:23,393 INFO L82 PathProgramCache]: Analyzing trace with hash -2022951811, now seen corresponding path program 1 times [2019-11-20 12:26:23,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:26:23,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1264653063] [2019-11-20 12:26:23,394 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 12:26:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:26:23,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 12:26:23,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:26:23,680 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 12:26:23,680 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 12:26:23,683 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 12:26:23,683 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 12:26:23,684 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 12:26:23,766 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 12:26:23,766 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 12:26:23,768 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 12:26:23,793 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 12:26:23,794 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 12:26:23,794 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-20 12:26:23,848 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 12:26:23,849 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 12:26:23,867 INFO L567 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2019-11-20 12:26:23,868 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 12:26:23,868 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2019-11-20 12:26:23,897 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 12:26:23,897 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:26:24,126 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 12:26:24,127 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1264653063] [2019-11-20 12:26:24,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 12:26:24,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 13 [2019-11-20 12:26:24,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238013035] [2019-11-20 12:26:24,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 12:26:24,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:26:24,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 12:26:24,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-20 12:26:24,129 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2019-11-20 12:26:26,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:26:26,352 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-20 12:26:26,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 12:26:26,359 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2019-11-20 12:26:26,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:26:26,360 INFO L225 Difference]: With dead ends: 46 [2019-11-20 12:26:26,360 INFO L226 Difference]: Without dead ends: 46 [2019-11-20 12:26:26,361 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 12:26:26,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-20 12:26:26,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2019-11-20 12:26:26,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-20 12:26:26,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-11-20 12:26:26,365 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 25 [2019-11-20 12:26:26,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:26:26,366 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-11-20 12:26:26,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 12:26:26,366 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-11-20 12:26:26,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 12:26:26,367 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:26:26,367 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 12:26:26,570 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:26:26,571 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 12:26:26,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:26:26,571 INFO L82 PathProgramCache]: Analyzing trace with hash 2075501980, now seen corresponding path program 1 times [2019-11-20 12:26:26,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:26:26,572 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [711167615] [2019-11-20 12:26:26,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 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 12:26:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:26:26,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 12:26:26,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:26:26,831 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 12:26:26,831 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 12:26:26,838 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 12:26:26,838 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 12:26:26,838 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2019-11-20 12:26:26,956 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 12:26:26,957 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 12:26:26,974 INFO L567 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2019-11-20 12:26:26,975 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 12:26:26,975 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:13 [2019-11-20 12:26:26,996 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 12:26:26,996 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:26:27,192 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 12:26:27,192 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [711167615] [2019-11-20 12:26:27,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 12:26:27,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2019-11-20 12:26:27,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751321752] [2019-11-20 12:26:27,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-20 12:26:27,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:26:27,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-20 12:26:27,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-11-20 12:26:27,196 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 15 states. [2019-11-20 12:26:27,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:26:27,849 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2019-11-20 12:26:27,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-20 12:26:27,850 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2019-11-20 12:26:27,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:26:27,851 INFO L225 Difference]: With dead ends: 49 [2019-11-20 12:26:27,852 INFO L226 Difference]: Without dead ends: 49 [2019-11-20 12:26:27,853 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 12:26:27,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-20 12:26:27,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2019-11-20 12:26:27,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-20 12:26:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-11-20 12:26:27,858 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 25 [2019-11-20 12:26:27,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:26:27,858 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-11-20 12:26:27,858 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-20 12:26:27,858 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-11-20 12:26:27,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 12:26:27,859 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:26:27,859 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 12:26:28,061 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:26:28,062 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 12:26:28,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:26:28,063 INFO L82 PathProgramCache]: Analyzing trace with hash -669642114, now seen corresponding path program 2 times [2019-11-20 12:26:28,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:26:28,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [968697934] [2019-11-20 12:26:28,066 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 12:26:28,304 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 12:26:28,305 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 12:26:28,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 12:26:28,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:26:28,324 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 12:26:28,324 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:26:28,350 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 12:26:28,351 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [968697934] [2019-11-20 12:26:28,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 12:26:28,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-20 12:26:28,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166642505] [2019-11-20 12:26:28,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 12:26:28,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 12:26:28,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 12:26:28,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 12:26:28,353 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 5 states. [2019-11-20 12:26:28,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 12:26:28,384 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2019-11-20 12:26:28,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 12:26:28,385 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-20 12:26:28,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 12:26:28,386 INFO L225 Difference]: With dead ends: 39 [2019-11-20 12:26:28,386 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 12:26:28,386 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 12:26:28,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 12:26:28,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 25. [2019-11-20 12:26:28,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 12:26:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-20 12:26:28,390 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 25 [2019-11-20 12:26:28,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 12:26:28,390 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-20 12:26:28,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 12:26:28,390 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-20 12:26:28,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 12:26:28,391 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 12:26:28,391 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 12:26:28,592 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:26:28,592 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 12:26:28,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 12:26:28,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1224078522, now seen corresponding path program 1 times [2019-11-20 12:26:28,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 12:26:28,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1896895036] [2019-11-20 12:26:28,594 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 12:26:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 12:26:28,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-20 12:26:28,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 12:26:28,892 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 12:26:28,893 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 12:26:28,894 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 12:26:28,912 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-20 12:26:28,913 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 12:26:28,917 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 12:26:28,917 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-20 12:26:28,917 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 12:26:28,930 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 12:26:28,943 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 12:26:28,955 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 12:26:31,534 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 12:26:31,646 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 12:26:31,647 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 12:26:31,861 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-11-20 12:26:32,577 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 12:26:32,578 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 12:26:32,588 INFO L168 Benchmark]: Toolchain (without parser) took 17504.96 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 313.0 MB). Free memory was 956.3 MB in the beginning and 980.9 MB in the end (delta: -24.5 MB). Peak memory consumption was 288.5 MB. Max. memory is 11.5 GB. [2019-11-20 12:26:32,589 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 12:26:32,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -151.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-20 12:26:32,590 INFO L168 Benchmark]: Boogie Preprocessor took 115.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 12:26:32,591 INFO L168 Benchmark]: RCFGBuilder took 1649.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.4 MB in the end (delta: 110.2 MB). Peak memory consumption was 110.2 MB. Max. memory is 11.5 GB. [2019-11-20 12:26:32,591 INFO L168 Benchmark]: TraceAbstraction took 14968.76 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 173.0 MB). Free memory was 991.4 MB in the beginning and 980.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 183.6 MB. Max. memory is 11.5 GB. [2019-11-20 12:26:32,599 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 766.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -151.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 115.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1649.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.4 MB in the end (delta: 110.2 MB). Peak memory consumption was 110.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14968.76 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 173.0 MB). Free memory was 991.4 MB in the beginning and 980.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 183.6 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...