./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.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/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a2aa33a4d599a5d6897f5617ce765d9180019e00 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 11:06:56,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:06:56,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:06:56,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:06:56,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:06:56,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:06:56,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:06:56,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:06:56,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:06:56,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:06:56,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:06:56,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:06:56,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:06:56,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:06:56,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:06:56,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:06:56,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:06:56,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:06:56,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:06:56,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:06:56,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:06:56,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:06:56,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:06:56,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:06:56,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:06:56,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:06:56,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:06:56,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:06:56,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:06:56,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:06:56,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:06:56,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:06:56,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:06:56,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:06:56,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:06:56,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:06:56,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:06:56,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:06:56,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:06:56,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:06:56,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:06:56,187 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 11:06:56,221 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:06:56,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:06:56,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:06:56,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:06:56,226 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:06:56,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:06:56,227 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:06:56,227 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 11:06:56,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:06:56,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:06:56,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:06:56,229 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 11:06:56,230 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 11:06:56,230 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 11:06:56,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:06:56,231 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 11:06:56,231 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 11:06:56,231 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:06:56,231 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:06:56,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:06:56,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:06:56,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:06:56,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:06:56,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:06:56,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:06:56,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:06:56,234 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 11:06:56,234 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 11:06:56,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 11:06:56,235 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2aa33a4d599a5d6897f5617ce765d9180019e00 [2019-11-20 11:06:56,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:06:56,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:06:56,559 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:06:56,560 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:06:56,561 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:06:56,562 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-20 11:06:56,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3329dcf4/4b0c7e42eb9746a08322a6092c9ce668/FLAG1609575db [2019-11-20 11:06:57,180 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:06:57,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-20 11:06:57,205 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3329dcf4/4b0c7e42eb9746a08322a6092c9ce668/FLAG1609575db [2019-11-20 11:06:57,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3329dcf4/4b0c7e42eb9746a08322a6092c9ce668 [2019-11-20 11:06:57,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:06:57,487 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 11:06:57,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:06:57,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:06:57,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:06:57,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:57" (1/1) ... [2019-11-20 11:06:57,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b142779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:57, skipping insertion in model container [2019-11-20 11:06:57,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:57" (1/1) ... [2019-11-20 11:06:57,505 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:06:57,561 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:06:58,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:06:58,137 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:06:58,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:06:58,328 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:06:58,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58 WrapperNode [2019-11-20 11:06:58,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:06:58,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:06:58,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:06:58,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:06:58,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2019-11-20 11:06:58,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2019-11-20 11:06:58,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2019-11-20 11:06:58,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2019-11-20 11:06:58,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2019-11-20 11:06:58,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2019-11-20 11:06:58,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2019-11-20 11:06:58,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:06:58,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:06:58,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:06:58,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:06:58,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:06:58,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 11:06:58,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:06:58,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 11:06:58,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 11:06:58,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 11:06:58,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 11:06:58,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 11:06:58,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 11:06:58,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 11:06:58,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 11:06:58,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 11:06:58,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 11:06:58,510 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 11:06:58,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 11:06:58,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 11:06:58,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 11:06:58,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 11:06:58,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 11:06:58,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 11:06:58,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 11:06:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 11:06:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 11:06:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 11:06:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 11:06:58,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 11:06:58,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 11:06:58,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 11:06:58,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 11:06:58,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 11:06:58,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 11:06:58,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 11:06:58,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 11:06:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 11:06:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 11:06:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 11:06:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 11:06:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 11:06:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 11:06:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 11:06:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 11:06:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 11:06:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 11:06:58,517 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 11:06:58,517 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 11:06:58,517 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 11:06:58,517 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 11:06:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 11:06:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 11:06:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 11:06:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 11:06:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 11:06:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 11:06:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 11:06:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 11:06:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 11:06:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 11:06:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 11:06:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 11:06:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 11:06:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 11:06:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 11:06:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 11:06:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 11:06:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 11:06:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 11:06:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 11:06:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 11:06:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 11:06:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 11:06:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 11:06:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 11:06:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 11:06:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 11:06:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 11:06:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 11:06:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 11:06:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 11:06:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 11:06:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 11:06:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 11:06:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 11:06:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 11:06:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 11:06:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 11:06:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 11:06:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 11:06:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 11:06:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 11:06:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 11:06:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 11:06:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 11:06:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 11:06:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 11:06:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 11:06:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 11:06:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 11:06:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 11:06:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 11:06:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 11:06:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 11:06:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 11:06:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 11:06:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 11:06:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 11:06:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 11:06:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 11:06:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 11:06:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 11:06:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 11:06:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 11:06:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 11:06:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 11:06:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 11:06:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 11:06:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 11:06:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 11:06:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 11:06:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 11:06:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 11:06:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 11:06:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 11:06:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 11:06:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 11:06:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 11:06:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 11:06:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 11:06:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 11:06:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 11:06:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 11:06:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 11:06:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 11:06:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 11:06:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 11:06:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 11:06:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 11:06:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 11:06:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 11:06:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 11:06:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 11:06:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 11:06:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 11:06:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 11:06:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 11:06:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 11:06:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 11:06:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 11:06:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 11:06:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 11:06:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 11:06:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 11:06:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 11:06:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 11:06:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 11:06:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 11:06:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 11:06:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 11:06:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 11:06:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 11:06:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 11:06:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 11:06:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 11:06:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 11:06:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 11:06:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 11:06:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 11:06:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 11:06:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 11:06:58,539 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 11:06:58,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 11:06:58,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 11:06:58,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 11:06:58,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 11:06:58,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 11:06:58,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 11:06:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 11:06:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 11:06:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 11:06:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 11:06:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 11:06:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 11:06:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 11:06:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 11:06:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 11:06:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 11:06:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 11:06:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 11:06:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 11:06:58,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 11:06:58,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 11:06:58,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 11:06:58,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 11:06:58,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 11:06:58,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 11:06:58,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 11:06:58,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 11:06:58,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 11:06:58,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 11:06:58,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 11:06:58,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 11:06:58,546 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 11:06:58,546 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 11:06:58,546 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 11:06:58,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 11:06:58,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 11:06:58,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 11:06:58,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 11:06:58,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:06:58,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 11:06:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 11:06:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 11:06:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 11:06:59,198 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 11:06:59,629 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 11:07:00,013 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:07:00,014 INFO L285 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 11:07:00,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:07:00 BoogieIcfgContainer [2019-11-20 11:07:00,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:07:00,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:07:00,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:07:00,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:07:00,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:06:57" (1/3) ... [2019-11-20 11:07:00,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e645551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:07:00, skipping insertion in model container [2019-11-20 11:07:00,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (2/3) ... [2019-11-20 11:07:00,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e645551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:07:00, skipping insertion in model container [2019-11-20 11:07:00,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:07:00" (3/3) ... [2019-11-20 11:07:00,027 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-1.i [2019-11-20 11:07:00,038 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:07:00,050 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-20 11:07:00,064 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-20 11:07:00,090 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:07:00,091 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 11:07:00,091 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:07:00,091 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:07:00,091 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:07:00,091 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:07:00,092 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:07:00,092 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:07:00,120 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2019-11-20 11:07:00,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 11:07:00,134 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:00,135 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:00,136 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:00,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:00,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1653423738, now seen corresponding path program 1 times [2019-11-20 11:07:00,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:00,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1270885044] [2019-11-20 11:07:00,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:00,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 11:07:00,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:00,553 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 11:07:00,556 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:00,706 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 11:07:00,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1270885044] [2019-11-20 11:07:00,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:00,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 11:07:00,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069641846] [2019-11-20 11:07:00,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:07:00,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:00,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:07:00,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:07:00,759 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 5 states. [2019-11-20 11:07:00,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:00,838 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2019-11-20 11:07:00,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:07:00,843 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-20 11:07:00,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:00,861 INFO L225 Difference]: With dead ends: 42 [2019-11-20 11:07:00,861 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 11:07:00,865 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 11:07:00,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 11:07:00,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2019-11-20 11:07:00,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-20 11:07:00,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2019-11-20 11:07:00,973 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 16 [2019-11-20 11:07:00,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:00,974 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2019-11-20 11:07:00,974 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:07:00,975 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2019-11-20 11:07:00,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 11:07:00,981 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:00,981 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:01,194 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:01,195 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:01,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:01,196 INFO L82 PathProgramCache]: Analyzing trace with hash -898733223, now seen corresponding path program 1 times [2019-11-20 11:07:01,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:01,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1981761638] [2019-11-20 11:07:01,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:01,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 11:07:01,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:01,476 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 11:07:01,477 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:01,541 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 11:07:01,541 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1981761638] [2019-11-20 11:07:01,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:01,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 11:07:01,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285048994] [2019-11-20 11:07:01,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:07:01,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:01,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:07:01,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:07:01,544 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 3 states. [2019-11-20 11:07:01,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:01,600 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2019-11-20 11:07:01,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:07:01,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-20 11:07:01,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:01,602 INFO L225 Difference]: With dead ends: 40 [2019-11-20 11:07:01,602 INFO L226 Difference]: Without dead ends: 37 [2019-11-20 11:07:01,603 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:07:01,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-20 11:07:01,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2019-11-20 11:07:01,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 11:07:01,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-20 11:07:01,610 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 16 [2019-11-20 11:07:01,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:01,610 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-20 11:07:01,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:07:01,610 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-20 11:07:01,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 11:07:01,611 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:01,611 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:01,815 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:01,816 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:01,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:01,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1369801691, now seen corresponding path program 1 times [2019-11-20 11:07:01,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:01,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [350309885] [2019-11-20 11:07:01,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:02,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 11:07:02,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:02,092 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:07:02,092 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:02,130 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:07:02,131 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [350309885] [2019-11-20 11:07:02,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:02,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 11:07:02,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59509236] [2019-11-20 11:07:02,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:07:02,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:02,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:07:02,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:07:02,133 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 5 states. [2019-11-20 11:07:02,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:02,144 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-11-20 11:07:02,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:07:02,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-20 11:07:02,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:02,146 INFO L225 Difference]: With dead ends: 24 [2019-11-20 11:07:02,146 INFO L226 Difference]: Without dead ends: 24 [2019-11-20 11:07:02,146 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:07:02,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-20 11:07:02,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-20 11:07:02,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-20 11:07:02,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2019-11-20 11:07:02,151 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 20 [2019-11-20 11:07:02,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:02,151 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2019-11-20 11:07:02,152 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:07:02,152 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-11-20 11:07:02,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 11:07:02,153 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:02,153 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:02,356 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:02,357 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:02,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:02,358 INFO L82 PathProgramCache]: Analyzing trace with hash -485820167, now seen corresponding path program 1 times [2019-11-20 11:07:02,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:02,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1160701006] [2019-11-20 11:07:02,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:02,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 11:07:02,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:02,701 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:07:02,701 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:02,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:07:02,793 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1160701006] [2019-11-20 11:07:02,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:02,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-20 11:07:02,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739421805] [2019-11-20 11:07:02,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 11:07:02,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:02,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 11:07:02,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:07:02,795 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 9 states. [2019-11-20 11:07:02,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:02,948 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-11-20 11:07:02,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:07:02,949 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2019-11-20 11:07:02,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:02,950 INFO L225 Difference]: With dead ends: 23 [2019-11-20 11:07:02,950 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 11:07:02,951 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:07:02,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 11:07:02,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-20 11:07:02,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 11:07:02,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-11-20 11:07:02,956 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2019-11-20 11:07:02,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:02,956 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-11-20 11:07:02,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 11:07:02,957 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-11-20 11:07:02,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 11:07:02,958 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:02,958 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:03,166 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:03,167 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:03,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:03,168 INFO L82 PathProgramCache]: Analyzing trace with hash 2119444381, now seen corresponding path program 1 times [2019-11-20 11:07:03,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:03,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2113688061] [2019-11-20 11:07:03,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:03,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 11:07:03,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:03,519 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 11:07:03,520 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:07:03,524 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:07:03,525 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:07:03,525 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 11:07:03,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:07:03,552 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:07:03,602 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2113688061] [2019-11-20 11:07:03,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:03,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 11:07:03,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272766909] [2019-11-20 11:07:03,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:07:03,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:03,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:07:03,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:07:03,605 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 5 states. [2019-11-20 11:07:03,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:03,657 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2019-11-20 11:07:03,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:07:03,658 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 11:07:03,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:03,659 INFO L225 Difference]: With dead ends: 29 [2019-11-20 11:07:03,659 INFO L226 Difference]: Without dead ends: 29 [2019-11-20 11:07:03,660 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:07:03,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-20 11:07:03,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-20 11:07:03,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-20 11:07:03,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-11-20 11:07:03,668 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2019-11-20 11:07:03,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:03,669 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-11-20 11:07:03,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:07:03,669 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-11-20 11:07:03,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 11:07:03,671 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:03,671 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:03,880 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:03,880 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:03,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:03,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1288019234, now seen corresponding path program 1 times [2019-11-20 11:07:03,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:03,882 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1893827910] [2019-11-20 11:07:03,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:04,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:07:04,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:04,144 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:07:04,145 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:04,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:07:04,172 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1893827910] [2019-11-20 11:07:04,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:04,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 11:07:04,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830750478] [2019-11-20 11:07:04,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:07:04,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:04,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:07:04,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:07:04,173 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 5 states. [2019-11-20 11:07:04,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:04,200 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2019-11-20 11:07:04,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:07:04,201 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 11:07:04,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:04,201 INFO L225 Difference]: With dead ends: 30 [2019-11-20 11:07:04,202 INFO L226 Difference]: Without dead ends: 30 [2019-11-20 11:07:04,202 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:07:04,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-20 11:07:04,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2019-11-20 11:07:04,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-20 11:07:04,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-11-20 11:07:04,206 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 22 [2019-11-20 11:07:04,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:04,206 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-11-20 11:07:04,206 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:07:04,206 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-11-20 11:07:04,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 11:07:04,207 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:04,207 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:04,407 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:04,408 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:04,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:04,409 INFO L82 PathProgramCache]: Analyzing trace with hash 53712474, now seen corresponding path program 1 times [2019-11-20 11:07:04,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:04,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1462057346] [2019-11-20 11:07:04,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:07:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:07:04,833 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-20 11:07:04,833 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 11:07:05,039 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:05,052 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-20 11:07:05,058 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-20 11:07:05,058 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-20 11:07:05,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:07:05 BoogieIcfgContainer [2019-11-20 11:07:05,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:07:05,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:07:05,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:07:05,067 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:07:05,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:07:00" (3/4) ... [2019-11-20 11:07:05,071 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 11:07:05,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:07:05,073 INFO L168 Benchmark]: Toolchain (without parser) took 7585.58 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 247.5 MB). Free memory was 957.7 MB in the beginning and 1.2 GB in the end (delta: -198.9 MB). Peak memory consumption was 48.5 MB. Max. memory is 11.5 GB. [2019-11-20 11:07:05,073 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:07:05,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 844.42 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 233.8 MB). Free memory was 957.7 MB in the beginning and 1.2 GB in the end (delta: -248.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-11-20 11:07:05,074 INFO L168 Benchmark]: Boogie Preprocessor took 110.80 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:07:05,075 INFO L168 Benchmark]: RCFGBuilder took 1571.51 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 118.6 MB). Peak memory consumption was 118.6 MB. Max. memory is 11.5 GB. [2019-11-20 11:07:05,076 INFO L168 Benchmark]: TraceAbstraction took 5048.51 ms. Allocated memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 13.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -68.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:07:05,076 INFO L168 Benchmark]: Witness Printer took 3.89 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:07:05,079 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 844.42 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 233.8 MB). Free memory was 957.7 MB in the beginning and 1.2 GB in the end (delta: -248.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 110.80 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1571.51 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 118.6 MB). Peak memory consumption was 118.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5048.51 ms. Allocated memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 13.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -68.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 3.89 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 765]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 765. Possible FailurePath: [L570] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={412711101:0}] [L766] CALL entry_point() VAL [ldv_global_msg_list={412711101:0}] [L759] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={412711101:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [\old(size)=4, \result={35:0}, ldv_global_msg_list={412711101:0}, malloc(size)={35:0}, size=4] [L759] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={412711101:0}, ldv_malloc(sizeof(int))={35:0}] [L759] int *p = (int *)ldv_malloc(sizeof(int)); [L760] COND TRUE \read(*p) VAL [ldv_global_msg_list={412711101:0}, p={35:0}] [L761] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={412711101:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [\old(size)=4, \result={-1734772548:0}, ldv_global_msg_list={412711101:0}, malloc(size)={-1734772548:0}, size=4] [L761] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={412711101:0}, ldv_malloc(sizeof(int))={-1734772548:0}, p={35:0}] [L761] int *q = (int *)ldv_malloc(sizeof(int)); [L762] free(q) VAL [ldv_global_msg_list={412711101:0}, p={35:0}, q={-1734772548:0}] [L762] free(q) VAL [ldv_global_msg_list={412711101:0}, p={35:0}, q={-1734772548:0}] [L762] free(q) [L766] RET entry_point() VAL [ldv_global_msg_list={412711101:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 46 procedures, 332 locations, 74 error locations. Result: UNSAFE, OverallTime: 4.9s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 158 SDtfs, 35 SDslu, 332 SDs, 0 SdLazy, 153 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 30 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 8634 SizeOfPredicates, 5 NumberOfNonLiveVariables, 453 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 32/32 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...