./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer --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 4e7f10697bf40be831ee927139b8f7b8ae344247 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 00:13:51,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:13:51,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:13:51,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:13:51,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:13:51,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:13:51,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:13:51,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:13:51,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:13:51,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:13:51,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:13:51,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:13:51,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:13:51,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:13:51,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:13:51,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:13:51,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:13:51,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:13:51,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:13:51,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:13:51,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:13:51,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:13:51,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:13:51,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:13:51,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:13:51,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:13:51,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:13:51,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:13:51,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:13:51,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:13:51,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:13:51,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:13:51,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:13:51,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:13:51,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:13:51,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:13:51,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:13:51,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:13:51,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:13:51,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:13:51,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:13:51,087 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 00:13:51,099 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:13:51,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:13:51,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:13:51,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:13:51,101 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:13:51,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:13:51,101 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:13:51,101 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 00:13:51,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:13:51,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:13:51,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:13:51,102 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 00:13:51,102 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 00:13:51,102 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 00:13:51,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:13:51,103 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 00:13:51,103 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 00:13:51,103 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:13:51,103 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:13:51,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:13:51,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:13:51,104 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:13:51,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:13:51,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:13:51,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:13:51,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:13:51,105 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 00:13:51,105 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 00:13:51,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 00:13:51,105 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer 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 -> 4e7f10697bf40be831ee927139b8f7b8ae344247 [2019-11-20 00:13:51,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:13:51,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:13:51,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:13:51,260 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:13:51,260 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:13:51,261 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-20 00:13:51,324 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/data/4b6cadbc6/bf30a3adb03f4526b1b54ea9113f079d/FLAG38160eef5 [2019-11-20 00:13:51,829 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:13:51,829 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-20 00:13:51,852 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/data/4b6cadbc6/bf30a3adb03f4526b1b54ea9113f079d/FLAG38160eef5 [2019-11-20 00:13:52,327 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/data/4b6cadbc6/bf30a3adb03f4526b1b54ea9113f079d [2019-11-20 00:13:52,330 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:13:52,331 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 00:13:52,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:13:52,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:13:52,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:13:52,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:13:52" (1/1) ... [2019-11-20 00:13:52,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c22dcce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:52, skipping insertion in model container [2019-11-20 00:13:52,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:13:52" (1/1) ... [2019-11-20 00:13:52,346 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:13:52,397 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:13:52,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:13:52,890 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:13:52,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:13:53,038 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:13:53,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:53 WrapperNode [2019-11-20 00:13:53,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:13:53,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:13:53,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:13:53,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:13:53,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:53" (1/1) ... [2019-11-20 00:13:53,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:53" (1/1) ... [2019-11-20 00:13:53,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:53" (1/1) ... [2019-11-20 00:13:53,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:53" (1/1) ... [2019-11-20 00:13:53,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:53" (1/1) ... [2019-11-20 00:13:53,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:53" (1/1) ... [2019-11-20 00:13:53,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:53" (1/1) ... [2019-11-20 00:13:53,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:13:53,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:13:53,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:13:53,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:13:53,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/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 00:13:53,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 00:13:53,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:13:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 00:13:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 00:13:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 00:13:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 00:13:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 00:13:53,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 00:13:53,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 00:13:53,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 00:13:53,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 00:13:53,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 00:13:53,196 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 00:13:53,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 00:13:53,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 00:13:53,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 00:13:53,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 00:13:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 00:13:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 00:13:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 00:13:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 00:13:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 00:13:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 00:13:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 00:13:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 00:13:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 00:13:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 00:13:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 00:13:53,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 00:13:53,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 00:13:53,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 00:13:53,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 00:13:53,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 00:13:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 00:13:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 00:13:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 00:13:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 00:13:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 00:13:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 00:13:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 00:13:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 00:13:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-20 00:13:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-20 00:13:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 00:13:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 00:13:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 00:13:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 00:13:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 00:13:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 00:13:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 00:13:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 00:13:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 00:13:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 00:13:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 00:13:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 00:13:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 00:13:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 00:13:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 00:13:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 00:13:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 00:13:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 00:13:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 00:13:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 00:13:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 00:13:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 00:13:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 00:13:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 00:13:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 00:13:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 00:13:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 00:13:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 00:13:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 00:13:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 00:13:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 00:13:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 00:13:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 00:13:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 00:13:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 00:13:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 00:13:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 00:13:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 00:13:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 00:13:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 00:13:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 00:13:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 00:13:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 00:13:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 00:13:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 00:13:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 00:13:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 00:13:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 00:13:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 00:13:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 00:13:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 00:13:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 00:13:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 00:13:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 00:13:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 00:13:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 00:13:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 00:13:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 00:13:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 00:13:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 00:13:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 00:13:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 00:13:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 00:13:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 00:13:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 00:13:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 00:13:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 00:13:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 00:13:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 00:13:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 00:13:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 00:13:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 00:13:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 00:13:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 00:13:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 00:13:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 00:13:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 00:13:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 00:13:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 00:13:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 00:13:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 00:13:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 00:13:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 00:13:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 00:13:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 00:13:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 00:13:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 00:13:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 00:13:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 00:13:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 00:13:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 00:13:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 00:13:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 00:13:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 00:13:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 00:13:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 00:13:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 00:13:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 00:13:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 00:13:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 00:13:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 00:13:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 00:13:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 00:13:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 00:13:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 00:13:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 00:13:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 00:13:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 00:13:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 00:13:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 00:13:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 00:13:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 00:13:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 00:13:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 00:13:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 00:13:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 00:13:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 00:13:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 00:13:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 00:13:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 00:13:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 00:13:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 00:13:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 00:13:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 00:13:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 00:13:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 00:13:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 00:13:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 00:13:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 00:13:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 00:13:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 00:13:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 00:13:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 00:13:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 00:13:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 00:13:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:13:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 00:13:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 00:13:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 00:13:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 00:13:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 00:13:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 00:13:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 00:13:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 00:13:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 00:13:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 00:13:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 00:13:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 00:13:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 00:13:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 00:13:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 00:13:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 00:13:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 00:13:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 00:13:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 00:13:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 00:13:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 00:13:53,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 00:13:53,228 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 00:13:53,228 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 00:13:53,228 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-20 00:13:53,228 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-20 00:13:53,228 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 00:13:53,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 00:13:53,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 00:13:53,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:13:53,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 00:13:53,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:13:53,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 00:13:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 00:13:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 00:13:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 00:13:53,725 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 00:13:54,091 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 00:13:54,593 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:13:54,593 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 00:13:54,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:13:54 BoogieIcfgContainer [2019-11-20 00:13:54,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:13:54,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:13:54,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:13:54,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:13:54,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:13:52" (1/3) ... [2019-11-20 00:13:54,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebe565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:13:54, skipping insertion in model container [2019-11-20 00:13:54,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:53" (2/3) ... [2019-11-20 00:13:54,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebe565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:13:54, skipping insertion in model container [2019-11-20 00:13:54,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:13:54" (3/3) ... [2019-11-20 00:13:54,605 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-2.i [2019-11-20 00:13:54,613 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:13:54,623 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-20 00:13:54,633 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-20 00:13:54,660 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:13:54,660 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 00:13:54,660 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:13:54,660 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:13:54,660 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:13:54,660 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:13:54,660 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:13:54,661 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:13:54,687 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-11-20 00:13:54,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 00:13:54,698 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:13:54,699 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:13:54,700 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:13:54,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:13:54,705 INFO L82 PathProgramCache]: Analyzing trace with hash 658326159, now seen corresponding path program 1 times [2019-11-20 00:13:54,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:13:54,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1557608132] [2019-11-20 00:13:54,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/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 00:13:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:13:55,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 00:13:55,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:13:55,095 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 00:13:55,095 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 00:13:55,103 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:13:55,103 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 00:13:55,104 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 00:13:55,136 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 00:13:55,137 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:13:55,187 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 00:13:55,188 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1557608132] [2019-11-20 00:13:55,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:13:55,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 00:13:55,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127580520] [2019-11-20 00:13:55,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 00:13:55,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:13:55,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 00:13:55,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 00:13:55,209 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 5 states. [2019-11-20 00:13:55,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:13:55,456 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2019-11-20 00:13:55,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 00:13:55,458 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-20 00:13:55,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:13:55,468 INFO L225 Difference]: With dead ends: 87 [2019-11-20 00:13:55,468 INFO L226 Difference]: Without dead ends: 84 [2019-11-20 00:13:55,469 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 00:13:55,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-20 00:13:55,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2019-11-20 00:13:55,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-20 00:13:55,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2019-11-20 00:13:55,510 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 16 [2019-11-20 00:13:55,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:13:55,511 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2019-11-20 00:13:55,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 00:13:55,511 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2019-11-20 00:13:55,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 00:13:55,512 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:13:55,513 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:13:55,715 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:13:55,716 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:13:55,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:13:55,717 INFO L82 PathProgramCache]: Analyzing trace with hash 658326160, now seen corresponding path program 1 times [2019-11-20 00:13:55,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:13:55,717 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2027857565] [2019-11-20 00:13:55,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/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 00:13:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:13:55,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 00:13:55,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:13:56,003 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 00:13:56,004 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 00:13:56,013 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:13:56,014 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 00:13:56,014 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 00:13:56,097 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 00:13:56,097 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:13:56,909 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 00:13:56,909 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2027857565] [2019-11-20 00:13:56,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:13:56,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-20 00:13:56,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590508714] [2019-11-20 00:13:56,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 00:13:56,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:13:56,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 00:13:56,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-20 00:13:56,912 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand 14 states. [2019-11-20 00:13:58,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:13:58,014 INFO L93 Difference]: Finished difference Result 93 states and 108 transitions. [2019-11-20 00:13:58,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 00:13:58,014 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-20 00:13:58,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:13:58,016 INFO L225 Difference]: With dead ends: 93 [2019-11-20 00:13:58,016 INFO L226 Difference]: Without dead ends: 93 [2019-11-20 00:13:58,017 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2019-11-20 00:13:58,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-11-20 00:13:58,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2019-11-20 00:13:58,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-11-20 00:13:58,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2019-11-20 00:13:58,028 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 16 [2019-11-20 00:13:58,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:13:58,028 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 97 transitions. [2019-11-20 00:13:58,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 00:13:58,029 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2019-11-20 00:13:58,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 00:13:58,029 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:13:58,029 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:13:58,232 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:13:58,232 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:13:58,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:13:58,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1545829840, now seen corresponding path program 1 times [2019-11-20 00:13:58,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:13:58,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1876395310] [2019-11-20 00:13:58,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/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 00:13:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:13:58,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 00:13:58,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:13:58,483 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 00:13:58,483 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:13:58,525 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 00:13:58,525 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1876395310] [2019-11-20 00:13:58,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:13:58,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 00:13:58,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684342670] [2019-11-20 00:13:58,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 00:13:58,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:13:58,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 00:13:58,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 00:13:58,526 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. Second operand 5 states. [2019-11-20 00:13:58,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:13:58,582 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2019-11-20 00:13:58,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 00:13:58,584 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-20 00:13:58,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:13:58,585 INFO L225 Difference]: With dead ends: 84 [2019-11-20 00:13:58,585 INFO L226 Difference]: Without dead ends: 84 [2019-11-20 00:13:58,586 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 00:13:58,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-20 00:13:58,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-20 00:13:58,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-20 00:13:58,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2019-11-20 00:13:58,594 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 16 [2019-11-20 00:13:58,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:13:58,594 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2019-11-20 00:13:58,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 00:13:58,594 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2019-11-20 00:13:58,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 00:13:58,595 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:13:58,595 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:13:58,795 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:13:58,796 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:13:58,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:13:58,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1065898717, now seen corresponding path program 1 times [2019-11-20 00:13:58,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:13:58,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2062615056] [2019-11-20 00:13:58,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/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 00:13:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:13:58,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 00:13:58,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:13:59,025 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 00:13:59,025 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:13:59,098 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 00:13:59,098 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2062615056] [2019-11-20 00:13:59,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:13:59,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 00:13:59,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785736773] [2019-11-20 00:13:59,099 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 00:13:59,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:13:59,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 00:13:59,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 00:13:59,099 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 5 states. [2019-11-20 00:13:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:13:59,171 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2019-11-20 00:13:59,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 00:13:59,174 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-20 00:13:59,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:13:59,175 INFO L225 Difference]: With dead ends: 84 [2019-11-20 00:13:59,175 INFO L226 Difference]: Without dead ends: 84 [2019-11-20 00:13:59,175 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 00:13:59,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-20 00:13:59,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-20 00:13:59,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-20 00:13:59,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2019-11-20 00:13:59,190 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 17 [2019-11-20 00:13:59,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:13:59,191 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2019-11-20 00:13:59,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 00:13:59,191 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2019-11-20 00:13:59,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 00:13:59,192 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:13:59,192 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:13:59,394 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:13:59,395 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:13:59,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:13:59,395 INFO L82 PathProgramCache]: Analyzing trace with hash 676911618, now seen corresponding path program 1 times [2019-11-20 00:13:59,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:13:59,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [366871288] [2019-11-20 00:13:59,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/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 00:13:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:13:59,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 00:13:59,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:13:59,582 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 00:13:59,582 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:13:59,638 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 00:13:59,638 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [366871288] [2019-11-20 00:13:59,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:13:59,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 00:13:59,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308119794] [2019-11-20 00:13:59,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 00:13:59,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:13:59,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:13:59,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:13:59,639 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 3 states. [2019-11-20 00:13:59,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:13:59,773 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2019-11-20 00:13:59,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:13:59,774 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-20 00:13:59,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:13:59,776 INFO L225 Difference]: With dead ends: 120 [2019-11-20 00:13:59,776 INFO L226 Difference]: Without dead ends: 115 [2019-11-20 00:13:59,776 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:13:59,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-20 00:13:59,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 80. [2019-11-20 00:13:59,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-20 00:13:59,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-11-20 00:13:59,786 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 17 [2019-11-20 00:13:59,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:13:59,786 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2019-11-20 00:13:59,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 00:13:59,787 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2019-11-20 00:13:59,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 00:13:59,787 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:13:59,788 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:13:59,994 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:13:59,995 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:13:59,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:13:59,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1457557360, now seen corresponding path program 1 times [2019-11-20 00:13:59,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:13:59,995 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1989712420] [2019-11-20 00:13:59,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/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 00:14:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:14:00,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-20 00:14:00,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:14:00,224 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 00:14:00,225 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 00:14:00,229 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:14:00,230 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 00:14:00,230 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 00:14:00,364 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:14:00,364 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:14:01,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 00:14:01,550 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-20 00:14:01,863 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:14:01,863 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1989712420] [2019-11-20 00:14:01,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 00:14:01,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2019-11-20 00:14:01,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659876037] [2019-11-20 00:14:01,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-20 00:14:01,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:14:01,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-20 00:14:01,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-20 00:14:01,874 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 19 states. [2019-11-20 00:14:03,217 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-20 00:14:04,584 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 38 [2019-11-20 00:14:05,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:14:05,480 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2019-11-20 00:14:05,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-20 00:14:05,481 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2019-11-20 00:14:05,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:14:05,482 INFO L225 Difference]: With dead ends: 97 [2019-11-20 00:14:05,482 INFO L226 Difference]: Without dead ends: 97 [2019-11-20 00:14:05,483 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2019-11-20 00:14:05,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-20 00:14:05,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2019-11-20 00:14:05,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-20 00:14:05,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2019-11-20 00:14:05,501 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 22 [2019-11-20 00:14:05,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:14:05,502 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2019-11-20 00:14:05,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-20 00:14:05,502 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2019-11-20 00:14:05,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 00:14:05,503 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:14:05,503 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:14:05,703 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:14:05,704 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:14:05,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:14:05,705 INFO L82 PathProgramCache]: Analyzing trace with hash 2122432263, now seen corresponding path program 1 times [2019-11-20 00:14:05,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:14:05,705 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [513040390] [2019-11-20 00:14:05,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/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 00:14:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:14:05,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 00:14:05,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:14:05,991 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:14:05,992 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:14:06,170 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:14:06,171 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [513040390] [2019-11-20 00:14:06,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 00:14:06,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-20 00:14:06,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440775648] [2019-11-20 00:14:06,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 00:14:06,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:14:06,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 00:14:06,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-20 00:14:06,173 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand 12 states. [2019-11-20 00:14:06,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:14:06,693 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2019-11-20 00:14:06,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 00:14:06,694 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2019-11-20 00:14:06,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:14:06,695 INFO L225 Difference]: With dead ends: 98 [2019-11-20 00:14:06,695 INFO L226 Difference]: Without dead ends: 98 [2019-11-20 00:14:06,695 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-11-20 00:14:06,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-20 00:14:06,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2019-11-20 00:14:06,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-20 00:14:06,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2019-11-20 00:14:06,701 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 35 [2019-11-20 00:14:06,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:14:06,701 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2019-11-20 00:14:06,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 00:14:06,701 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2019-11-20 00:14:06,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 00:14:06,710 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:14:06,711 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:14:06,911 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:14:06,912 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:14:06,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:14:06,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1647594640, now seen corresponding path program 2 times [2019-11-20 00:14:06,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:14:06,916 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [190801213] [2019-11-20 00:14:06,916 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/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 00:14:07,276 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 00:14:07,277 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 00:14:07,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-20 00:14:07,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:14:07,299 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 00:14:07,299 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 00:14:07,306 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:14:07,306 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 00:14:07,306 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 00:14:07,566 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:14:07,567 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:14:09,762 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:14:09,763 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [190801213] [2019-11-20 00:14:09,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 00:14:09,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2019-11-20 00:14:09,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809045633] [2019-11-20 00:14:09,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-20 00:14:09,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:14:09,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-20 00:14:09,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2019-11-20 00:14:09,765 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand 26 states. [2019-11-20 00:14:12,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:14:12,953 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2019-11-20 00:14:12,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-20 00:14:12,954 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 34 [2019-11-20 00:14:12,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:14:12,955 INFO L225 Difference]: With dead ends: 108 [2019-11-20 00:14:12,955 INFO L226 Difference]: Without dead ends: 108 [2019-11-20 00:14:12,956 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=291, Invalid=1349, Unknown=0, NotChecked=0, Total=1640 [2019-11-20 00:14:12,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-11-20 00:14:12,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2019-11-20 00:14:12,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-20 00:14:12,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2019-11-20 00:14:12,962 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 34 [2019-11-20 00:14:12,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:14:12,963 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2019-11-20 00:14:12,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-20 00:14:12,963 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2019-11-20 00:14:12,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-20 00:14:12,964 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:14:12,964 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:14:13,165 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:14:13,165 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:14:13,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:14:13,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1226889072, now seen corresponding path program 3 times [2019-11-20 00:14:13,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:14:13,166 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1737822428] [2019-11-20 00:14:13,166 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/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 00:14:13,680 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-20 00:14:13,680 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 00:14:13,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-20 00:14:13,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:14:14,101 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:14:14,101 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:14:16,164 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:14:16,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1737822428] [2019-11-20 00:14:16,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 00:14:16,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22] total 38 [2019-11-20 00:14:16,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251628320] [2019-11-20 00:14:16,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-11-20 00:14:16,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:14:16,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-11-20 00:14:16,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1146, Unknown=0, NotChecked=0, Total=1406 [2019-11-20 00:14:16,167 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand 38 states. [2019-11-20 00:14:17,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:14:17,299 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2019-11-20 00:14:17,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-20 00:14:17,300 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 46 [2019-11-20 00:14:17,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:14:17,301 INFO L225 Difference]: With dead ends: 101 [2019-11-20 00:14:17,301 INFO L226 Difference]: Without dead ends: 101 [2019-11-20 00:14:17,302 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=285, Invalid=1197, Unknown=0, NotChecked=0, Total=1482 [2019-11-20 00:14:17,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-11-20 00:14:17,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-11-20 00:14:17,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-20 00:14:17,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 106 transitions. [2019-11-20 00:14:17,309 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 106 transitions. Word has length 46 [2019-11-20 00:14:17,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:14:17,309 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 106 transitions. [2019-11-20 00:14:17,310 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-11-20 00:14:17,310 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 106 transitions. [2019-11-20 00:14:17,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-20 00:14:17,311 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:14:17,311 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:14:17,515 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:14:17,516 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:14:17,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:14:17,516 INFO L82 PathProgramCache]: Analyzing trace with hash -2119706825, now seen corresponding path program 2 times [2019-11-20 00:14:17,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:14:17,517 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1732957411] [2019-11-20 00:14:17,517 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/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 00:14:17,728 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-20 00:14:17,729 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 00:14:17,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 00:14:17,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:14:17,766 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 00:14:17,766 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:14:17,853 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 00:14:17,854 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1732957411] [2019-11-20 00:14:17,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:14:17,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-20 00:14:17,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823070652] [2019-11-20 00:14:17,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 00:14:17,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:14:17,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 00:14:17,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-20 00:14:17,856 INFO L87 Difference]: Start difference. First operand 101 states and 106 transitions. Second operand 7 states. [2019-11-20 00:14:17,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:14:17,971 INFO L93 Difference]: Finished difference Result 132 states and 141 transitions. [2019-11-20 00:14:17,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 00:14:17,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-20 00:14:17,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:14:17,973 INFO L225 Difference]: With dead ends: 132 [2019-11-20 00:14:17,973 INFO L226 Difference]: Without dead ends: 129 [2019-11-20 00:14:17,973 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-20 00:14:17,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-11-20 00:14:17,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 102. [2019-11-20 00:14:17,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-20 00:14:17,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2019-11-20 00:14:17,980 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 56 [2019-11-20 00:14:17,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:14:17,981 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2019-11-20 00:14:17,981 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 00:14:17,981 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2019-11-20 00:14:17,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-20 00:14:17,983 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:14:17,983 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:14:18,186 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:14:18,186 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:14:18,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:14:18,187 INFO L82 PathProgramCache]: Analyzing trace with hash -852929006, now seen corresponding path program 1 times [2019-11-20 00:14:18,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:14:18,187 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1455841512] [2019-11-20 00:14:18,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/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 00:14:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:14:18,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 00:14:18,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:14:18,575 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 00:14:18,575 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 00:14:18,577 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:14:18,577 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 00:14:18,577 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 00:14:18,651 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:14:18,652 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-20 00:14:18,652 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 00:14:18,667 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 00:14:18,668 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 00:14:18,668 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-20 00:14:18,713 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 00:14:18,713 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:14:20,985 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-20 00:14:20,986 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1455841512] [2019-11-20 00:14:20,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 00:14:20,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-20 00:14:20,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335040797] [2019-11-20 00:14:20,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 00:14:20,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:14:20,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 00:14:20,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-11-20 00:14:20,987 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand 8 states. [2019-11-20 00:14:41,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:14:41,189 INFO L93 Difference]: Finished difference Result 159 states and 177 transitions. [2019-11-20 00:14:41,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 00:14:41,190 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-20 00:14:41,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:14:41,191 INFO L225 Difference]: With dead ends: 159 [2019-11-20 00:14:41,192 INFO L226 Difference]: Without dead ends: 159 [2019-11-20 00:14:41,192 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=83, Invalid=378, Unknown=1, NotChecked=0, Total=462 [2019-11-20 00:14:41,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-11-20 00:14:41,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 108. [2019-11-20 00:14:41,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-20 00:14:41,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 117 transitions. [2019-11-20 00:14:41,197 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 117 transitions. Word has length 56 [2019-11-20 00:14:41,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:14:41,198 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 117 transitions. [2019-11-20 00:14:41,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 00:14:41,198 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 117 transitions. [2019-11-20 00:14:41,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-20 00:14:41,199 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:14:41,199 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:14:41,407 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:14:41,408 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:14:41,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:14:41,408 INFO L82 PathProgramCache]: Analyzing trace with hash -852929005, now seen corresponding path program 1 times [2019-11-20 00:14:41,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:14:41,409 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1869866637] [2019-11-20 00:14:41,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/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 00:14:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:14:41,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-20 00:14:41,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:14:41,984 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 00:14:41,984 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 00:14:42,002 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:14:42,007 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 00:14:42,007 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 00:14:42,016 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:14:42,016 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 00:14:42,016 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 00:14:44,242 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 00:14:44,243 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 00:14:44,244 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 00:14:44,260 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:14:44,269 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:14:44,270 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-20 00:14:44,270 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 00:14:44,282 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:14:44,283 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 00:14:44,283 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2019-11-20 00:14:44,326 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 00:14:44,326 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:14:44,663 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 00:14:45,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 00:14:45,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 00:14:45,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 00:14:45,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 00:14:45,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 00:14:45,704 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 00:14:45,705 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 00:14:56,269 WARN L191 SmtUtils]: Spent 5.68 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-20 00:14:56,274 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 00:15:01,132 WARN L191 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2019-11-20 00:15:02,696 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_256|], 2=[|v_#length_214|]} [2019-11-20 00:15:02,703 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 00:15:02,703 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 00:15:02,718 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:15:02,720 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 00:15:02,721 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 00:15:02,729 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:15:02,730 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 00:15:02,730 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-20 00:15:03,505 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-20 00:15:03,518 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 00:15:03,519 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 00:15:03,536 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:15:03,538 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 00:15:03,539 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 00:15:03,554 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:15:03,554 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 00:15:03,555 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-20 00:15:03,747 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 00:15:03,748 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1869866637] [2019-11-20 00:15:03,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 00:15:03,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-20 00:15:03,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445072788] [2019-11-20 00:15:03,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-20 00:15:03,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:15:03,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-20 00:15:03,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=406, Unknown=4, NotChecked=0, Total=462 [2019-11-20 00:15:03,749 INFO L87 Difference]: Start difference. First operand 108 states and 117 transitions. Second operand 22 states. [2019-11-20 00:15:36,386 WARN L191 SmtUtils]: Spent 8.17 s on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2019-11-20 00:16:11,187 WARN L838 $PredicateComparison]: unable to prove that (and (= c_ldv_malloc_~size |c_ldv_malloc_#in~size|) (= (_ bv0 32) |c_ldv_malloc_#res.offset|) (= (bvadd (select |c_#valid| |c_ldv_malloc_#res.base|) (_ bv1 1)) (_ bv0 1)) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((|v_ldv_malloc_#t~malloc12.base_44| (_ BitVec 32)) (v_ldv_malloc_~size_52 (_ BitVec 32))) (and (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_44| v_ldv_malloc_~size_52) v_alloc_17_~array.base_BEFORE_CALL_4))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_44|) (_ bv0 1)))) (not (bvsle .cse0 .cse1)))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|) (exists ((v_prenex_11 (_ BitVec 32))) (= (select |c_old(#valid)| v_prenex_11) (_ bv0 1)))) is different from false [2019-11-20 00:16:25,596 WARN L191 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 54 DAG size of output: 25 [2019-11-20 00:17:02,129 WARN L191 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 59 DAG size of output: 30 [2019-11-20 00:18:02,189 WARN L191 SmtUtils]: Spent 22.28 s on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-11-20 00:18:45,022 WARN L191 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 55 DAG size of output: 26 [2019-11-20 00:19:17,982 WARN L191 SmtUtils]: Spent 18.39 s on a formula simplification. DAG size of input: 65 DAG size of output: 36 [2019-11-20 00:19:40,917 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((|v_ldv_malloc_#t~malloc12.base_44| (_ BitVec 32)) (v_ldv_malloc_~size_52 (_ BitVec 32))) (and (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_44| v_ldv_malloc_~size_52) v_alloc_17_~array.base_BEFORE_CALL_4))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_44|) (_ bv0 1)))) (not (bvsle .cse0 .cse1)))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= |c_#valid| |c_old(#valid)|) (exists ((v_prenex_11 (_ BitVec 32))) (= (select |c_old(#valid)| v_prenex_11) (_ bv0 1))) (= |c_old(#length)| |c_#length|)) is different from false [2019-11-20 00:20:18,836 WARN L191 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-11-20 00:20:31,298 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv1 1) (select |c_#valid| c_alloc_17_~array.base)) (= (_ bv40 32) (select |c_#length| c_alloc_17_~array.base)) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((|v_ldv_malloc_#t~malloc12.base_44| (_ BitVec 32)) (v_ldv_malloc_~size_52 (_ BitVec 32))) (and (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_44| v_ldv_malloc_~size_52) v_alloc_17_~array.base_BEFORE_CALL_4))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_44|) (_ bv0 1)))) (not (bvsle .cse0 .cse1)))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (_ bv40 32) (select |c_#length| |c_alloc_17_#in~array.base|)) (= |c_#valid| |c_old(#valid)|) (exists ((v_prenex_11 (_ BitVec 32))) (= (select |c_old(#valid)| v_prenex_11) (_ bv0 1))) (= |c_old(#length)| |c_#length|) (= c_alloc_17_~array.offset (_ bv0 32)) (= (_ bv0 32) c_alloc_17_~i~0) (= (_ bv1 1) (select |c_#valid| |c_alloc_17_#in~array.base|)) (= |c_alloc_17_#in~array.offset| (_ bv0 32))) is different from false [2019-11-20 00:20:56,438 WARN L191 SmtUtils]: Spent 10.32 s on a formula simplification. DAG size of input: 53 DAG size of output: 25 [2019-11-20 00:20:57,086 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-20 00:21:56,685 WARN L191 SmtUtils]: Spent 10.01 s on a formula simplification. DAG size of input: 76 DAG size of output: 45 [2019-11-20 00:21:59,684 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((|v_ldv_malloc_#t~malloc12.base_44| (_ BitVec 32)) (v_ldv_malloc_~size_52 (_ BitVec 32))) (and (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_44| v_ldv_malloc_~size_52) v_alloc_17_~array.base_BEFORE_CALL_4))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_44|) (_ bv0 1)))) (not (bvsle .cse0 .cse1)))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (bvadd c_entry_point_~len~0 (_ bv4294967286 32)) (_ bv0 32)) (exists ((v_prenex_11 (_ BitVec 32))) (= (select |c_old(#valid)| v_prenex_11) (_ bv0 1)))) is different from false [2019-11-20 00:22:53,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:22:53,282 INFO L93 Difference]: Finished difference Result 300 states and 345 transitions. [2019-11-20 00:22:53,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-11-20 00:22:53,283 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-20 00:22:53,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:22:53,286 INFO L225 Difference]: With dead ends: 300 [2019-11-20 00:22:53,286 INFO L226 Difference]: Without dead ends: 300 [2019-11-20 00:22:53,287 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 90 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 264.3s TimeCoverageRelationStatistics Valid=220, Invalid=1372, Unknown=64, NotChecked=324, Total=1980 [2019-11-20 00:22:53,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-11-20 00:22:53,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 149. [2019-11-20 00:22:53,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-11-20 00:22:53,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 182 transitions. [2019-11-20 00:22:53,299 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 182 transitions. Word has length 56 [2019-11-20 00:22:53,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:22:53,300 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 182 transitions. [2019-11-20 00:22:53,300 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-20 00:22:53,300 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 182 transitions. [2019-11-20 00:22:53,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-20 00:22:53,301 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:22:53,302 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:22:53,508 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:22:53,509 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:22:53,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:22:53,509 INFO L82 PathProgramCache]: Analyzing trace with hash 673934239, now seen corresponding path program 1 times [2019-11-20 00:22:53,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:22:53,510 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1429584745] [2019-11-20 00:22:53,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:22:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:22:53,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 00:22:53,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:22:53,802 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-20 00:22:53,802 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:22:53,835 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-20 00:22:53,835 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1429584745] [2019-11-20 00:22:53,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:22:53,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 00:22:53,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110007201] [2019-11-20 00:22:53,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 00:22:53,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:22:53,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 00:22:53,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 00:22:53,837 INFO L87 Difference]: Start difference. First operand 149 states and 182 transitions. Second operand 5 states. [2019-11-20 00:22:53,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:22:53,894 INFO L93 Difference]: Finished difference Result 162 states and 195 transitions. [2019-11-20 00:22:53,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 00:22:53,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-20 00:22:53,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:22:53,896 INFO L225 Difference]: With dead ends: 162 [2019-11-20 00:22:53,896 INFO L226 Difference]: Without dead ends: 162 [2019-11-20 00:22:53,896 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 00:22:53,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-20 00:22:53,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 151. [2019-11-20 00:22:53,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-20 00:22:53,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 182 transitions. [2019-11-20 00:22:53,904 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 182 transitions. Word has length 58 [2019-11-20 00:22:53,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:22:53,905 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 182 transitions. [2019-11-20 00:22:53,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 00:22:53,905 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 182 transitions. [2019-11-20 00:22:53,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-20 00:22:53,906 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:22:53,906 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:22:54,106 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:22:54,107 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:22:54,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:22:54,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1878222722, now seen corresponding path program 1 times [2019-11-20 00:22:54,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:22:54,108 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1145435074] [2019-11-20 00:22:54,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:22:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:22:54,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 00:22:54,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:22:54,506 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-20 00:22:54,506 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:22:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-20 00:22:54,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1145435074] [2019-11-20 00:22:54,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:22:54,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 00:22:54,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937487939] [2019-11-20 00:22:54,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 00:22:54,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:22:54,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 00:22:54,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 00:22:54,554 INFO L87 Difference]: Start difference. First operand 151 states and 182 transitions. Second operand 6 states. [2019-11-20 00:22:54,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:22:54,699 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2019-11-20 00:22:54,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 00:22:54,700 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-20 00:22:54,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:22:54,702 INFO L225 Difference]: With dead ends: 160 [2019-11-20 00:22:54,702 INFO L226 Difference]: Without dead ends: 160 [2019-11-20 00:22:54,702 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 00:22:54,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-11-20 00:22:54,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 153. [2019-11-20 00:22:54,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-20 00:22:54,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 184 transitions. [2019-11-20 00:22:54,711 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 184 transitions. Word has length 58 [2019-11-20 00:22:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:22:54,711 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 184 transitions. [2019-11-20 00:22:54,711 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 00:22:54,711 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 184 transitions. [2019-11-20 00:22:54,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-20 00:22:54,712 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:22:54,713 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:22:54,917 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:22:54,918 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 00:22:54,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:22:54,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1249334386, now seen corresponding path program 1 times [2019-11-20 00:22:54,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:22:54,918 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [68823985] [2019-11-20 00:22:54,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34d52bde-8ce8-4cc5-ad8d-76d37e177761/bin/uautomizer/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:22:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:22:55,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 00:22:55,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:22:55,362 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 00:22:55,362 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 00:22:55,366 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 00:22:55,366 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 00:22:55,366 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 00:22:55,463 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 00:22:55,464 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:22:55,784 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 00:22:55,785 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 00:22:55,791 INFO L168 Benchmark]: Toolchain (without parser) took 543457.93 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 242.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -116.4 MB). Peak memory consumption was 126.4 MB. Max. memory is 11.5 GB. [2019-11-20 00:22:55,794 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:22:55,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:22:55,795 INFO L168 Benchmark]: Boogie Preprocessor took 103.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 00:22:55,796 INFO L168 Benchmark]: RCFGBuilder took 1454.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.2 MB in the end (delta: 120.0 MB). Peak memory consumption was 120.0 MB. Max. memory is 11.5 GB. [2019-11-20 00:22:55,796 INFO L168 Benchmark]: TraceAbstraction took 541189.62 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 110.1 MB). Free memory was 968.2 MB in the beginning and 1.1 GB in the end (delta: -87.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:22:55,798 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 706.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 103.60 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1454.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.2 MB in the end (delta: 120.0 MB). Peak memory consumption was 120.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 541189.62 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 110.1 MB). Free memory was 968.2 MB in the beginning and 1.1 GB in the end (delta: -87.5 MB). Peak memory consumption was 22.6 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. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...