./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b5699aa Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 4e7f10697bf40be831ee927139b8f7b8ae344247 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-21 21:49:42,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 21:49:42,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 21:49:42,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 21:49:42,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 21:49:42,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 21:49:42,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 21:49:42,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 21:49:42,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 21:49:42,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 21:49:42,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 21:49:42,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 21:49:42,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 21:49:42,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 21:49:42,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 21:49:42,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 21:49:42,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 21:49:42,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 21:49:42,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 21:49:42,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 21:49:42,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 21:49:42,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 21:49:42,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 21:49:42,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 21:49:42,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 21:49:42,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 21:49:42,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 21:49:42,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 21:49:42,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 21:49:42,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 21:49:42,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 21:49:42,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 21:49:42,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 21:49:42,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 21:49:42,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 21:49:42,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 21:49:42,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 21:49:42,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 21:49:42,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 21:49:42,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 21:49:42,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 21:49:42,175 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 21:49:42,189 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 21:49:42,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 21:49:42,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 21:49:42,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 21:49:42,192 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 21:49:42,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 21:49:42,192 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 21:49:42,193 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 21:49:42,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 21:49:42,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 21:49:42,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 21:49:42,194 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 21:49:42,194 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 21:49:42,194 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 21:49:42,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 21:49:42,195 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-21 21:49:42,195 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 21:49:42,195 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 21:49:42,196 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 21:49:42,196 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 21:49:42,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 21:49:42,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 21:49:42,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 21:49:42,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 21:49:42,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 21:49:42,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 21:49:42,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 21:49:42,198 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 21:49:42,198 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 21:49:42,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 21:49:42,199 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 -> 4e7f10697bf40be831ee927139b8f7b8ae344247 [2019-11-21 21:49:42,512 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 21:49:42,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 21:49:42,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 21:49:42,530 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 21:49:42,531 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 21:49:42,532 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-21 21:49:42,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00d74ddc2/409dda6448fb488dae1c87e94549b4e7/FLAG9a0e5e850 [2019-11-21 21:49:43,123 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 21:49:43,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-21 21:49:43,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00d74ddc2/409dda6448fb488dae1c87e94549b4e7/FLAG9a0e5e850 [2019-11-21 21:49:43,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00d74ddc2/409dda6448fb488dae1c87e94549b4e7 [2019-11-21 21:49:43,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 21:49:43,465 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 21:49:43,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 21:49:43,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 21:49:43,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 21:49:43,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:49:43" (1/1) ... [2019-11-21 21:49:43,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c16723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:49:43, skipping insertion in model container [2019-11-21 21:49:43,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:49:43" (1/1) ... [2019-11-21 21:49:43,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 21:49:43,525 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 21:49:43,926 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 21:49:43,927 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 21:49:43,927 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:49:43,952 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 21:49:43,952 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 21:49:43,953 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:49:43,957 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 21:49:43,957 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 21:49:43,958 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:49:43,962 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 21:49:43,962 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 21:49:43,962 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:49:44,000 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 21:49:44,000 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 21:49:44,001 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:49:44,020 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 21:49:44,021 INFO L968 CHandler]: at location: C: (struct A17 *)ldv_malloc(sizeof(struct A17)) [766] [2019-11-21 21:49:44,022 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:49:44,039 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 21:49:44,040 INFO L968 CHandler]: at location: C: (struct A17 **)ldv_malloc(sizeof(struct A17*)*len) [787] [2019-11-21 21:49:44,040 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:49:44,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:49:44,080 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 21:49:44,090 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 21:49:44,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:49:44,176 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 21:49:44,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:49:44,329 INFO L205 MainTranslator]: Completed translation [2019-11-21 21:49:44,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:49:44 WrapperNode [2019-11-21 21:49:44,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 21:49:44,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 21:49:44,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 21:49:44,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 21:49:44,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:49:44" (1/1) ... [2019-11-21 21:49:44,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:49:44" (1/1) ... [2019-11-21 21:49:44,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:49:44" (1/1) ... [2019-11-21 21:49:44,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:49:44" (1/1) ... [2019-11-21 21:49:44,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:49:44" (1/1) ... [2019-11-21 21:49:44,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:49:44" (1/1) ... [2019-11-21 21:49:44,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:49:44" (1/1) ... [2019-11-21 21:49:44,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 21:49:44,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 21:49:44,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 21:49:44,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 21:49:44,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:49:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 21:49:44,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 21:49:44,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 21:49:44,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 21:49:44,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-21 21:49:44,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 21:49:44,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 21:49:44,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 21:49:44,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 21:49:44,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 21:49:44,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 21:49:44,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 21:49:44,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 21:49:44,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 21:49:44,534 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 21:49:44,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 21:49:44,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 21:49:44,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 21:49:44,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 21:49:44,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 21:49:44,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 21:49:44,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 21:49:44,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 21:49:44,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 21:49:44,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 21:49:44,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 21:49:44,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 21:49:44,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 21:49:44,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 21:49:44,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 21:49:44,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 21:49:44,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 21:49:44,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 21:49:44,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 21:49:44,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 21:49:44,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 21:49:44,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 21:49:44,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 21:49:44,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 21:49:44,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 21:49:44,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 21:49:44,540 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 21:49:44,540 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 21:49:44,542 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-21 21:49:44,542 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-21 21:49:44,542 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 21:49:44,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 21:49:44,543 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 21:49:44,544 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 21:49:44,545 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 21:49:44,546 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 21:49:44,546 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 21:49:44,547 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 21:49:44,547 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 21:49:44,547 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 21:49:44,547 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 21:49:44,548 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 21:49:44,548 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 21:49:44,548 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 21:49:44,549 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 21:49:44,549 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 21:49:44,549 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 21:49:44,550 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 21:49:44,550 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 21:49:44,550 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 21:49:44,550 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 21:49:44,550 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 21:49:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 21:49:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 21:49:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 21:49:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 21:49:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 21:49:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 21:49:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 21:49:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 21:49:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 21:49:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 21:49:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 21:49:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 21:49:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 21:49:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 21:49:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 21:49:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 21:49:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 21:49:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 21:49:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 21:49:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 21:49:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 21:49:44,555 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 21:49:44,555 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 21:49:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 21:49:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 21:49:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 21:49:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 21:49:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 21:49:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 21:49:44,557 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 21:49:44,558 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 21:49:44,558 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 21:49:44,558 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 21:49:44,558 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 21:49:44,558 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 21:49:44,559 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 21:49:44,559 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 21:49:44,559 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 21:49:44,560 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 21:49:44,560 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 21:49:44,564 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 21:49:44,564 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 21:49:44,565 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 21:49:44,565 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 21:49:44,565 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 21:49:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 21:49:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 21:49:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 21:49:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 21:49:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 21:49:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 21:49:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 21:49:44,577 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 21:49:44,577 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 21:49:44,577 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 21:49:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 21:49:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 21:49:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 21:49:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 21:49:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 21:49:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 21:49:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 21:49:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 21:49:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 21:49:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 21:49:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 21:49:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 21:49:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 21:49:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 21:49:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 21:49:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 21:49:44,581 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 21:49:44,581 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 21:49:44,581 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 21:49:44,581 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 21:49:44,581 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 21:49:44,581 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 21:49:44,582 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 21:49:44,582 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 21:49:44,582 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 21:49:44,582 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 21:49:44,582 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 21:49:44,583 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 21:49:44,583 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 21:49:44,583 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 21:49:44,583 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 21:49:44,583 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 21:49:44,583 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 21:49:44,584 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 21:49:44,584 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 21:49:44,584 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 21:49:44,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 21:49:44,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 21:49:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 21:49:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 21:49:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 21:49:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 21:49:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 21:49:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 21:49:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 21:49:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 21:49:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 21:49:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 21:49:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 21:49:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 21:49:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 21:49:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 21:49:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 21:49:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 21:49:44,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 21:49:44,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 21:49:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 21:49:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 21:49:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 21:49:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 21:49:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 21:49:44,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 21:49:44,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 21:49:44,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 21:49:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 21:49:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 21:49:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 21:49:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 21:49:44,592 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 21:49:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 21:49:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 21:49:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 21:49:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 21:49:44,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 21:49:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 21:49:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 21:49:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 21:49:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 21:49:44,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 21:49:44,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 21:49:44,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 21:49:44,595 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 21:49:44,595 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 21:49:44,595 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-21 21:49:44,596 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-21 21:49:44,596 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 21:49:44,596 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 21:49:44,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 21:49:44,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 21:49:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 21:49:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 21:49:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-21 21:49:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 21:49:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 21:49:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 21:49:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 21:49:45,421 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 21:49:45,808 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 21:49:46,317 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 21:49:46,317 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-21 21:49:46,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:49:46 BoogieIcfgContainer [2019-11-21 21:49:46,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 21:49:46,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 21:49:46,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 21:49:46,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 21:49:46,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:49:43" (1/3) ... [2019-11-21 21:49:46,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce25543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:49:46, skipping insertion in model container [2019-11-21 21:49:46,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:49:44" (2/3) ... [2019-11-21 21:49:46,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce25543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:49:46, skipping insertion in model container [2019-11-21 21:49:46,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:49:46" (3/3) ... [2019-11-21 21:49:46,331 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-2.i [2019-11-21 21:49:46,342 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 21:49:46,358 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-21 21:49:46,370 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-21 21:49:46,397 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 21:49:46,398 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 21:49:46,399 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 21:49:46,399 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 21:49:46,399 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 21:49:46,399 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 21:49:46,400 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 21:49:46,400 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 21:49:46,421 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-11-21 21:49:46,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 21:49:46,431 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:49:46,432 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:49:46,433 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:49:46,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:49:46,440 INFO L82 PathProgramCache]: Analyzing trace with hash -67233649, now seen corresponding path program 1 times [2019-11-21 21:49:46,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:49:46,452 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [674021958] [2019-11-21 21:49:46,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:49:46,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 21:49:46,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:49:46,851 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:49:46,852 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:49:46,863 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:49:46,863 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:49:46,864 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 21:49:46,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:46,895 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:49:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:46,969 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [674021958] [2019-11-21 21:49:46,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:49:46,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 21:49:46,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947755327] [2019-11-21 21:49:46,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 21:49:46,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:49:46,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 21:49:46,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:49:46,995 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 5 states. [2019-11-21 21:49:47,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:49:47,289 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2019-11-21 21:49:47,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 21:49:47,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 21:49:47,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:49:47,309 INFO L225 Difference]: With dead ends: 87 [2019-11-21 21:49:47,309 INFO L226 Difference]: Without dead ends: 84 [2019-11-21 21:49:47,326 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:49:47,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-21 21:49:47,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2019-11-21 21:49:47,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-21 21:49:47,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2019-11-21 21:49:47,395 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 16 [2019-11-21 21:49:47,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:49:47,395 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2019-11-21 21:49:47,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 21:49:47,395 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2019-11-21 21:49:47,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 21:49:47,397 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:49:47,397 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:49:47,598 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:47,599 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:49:47,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:49:47,600 INFO L82 PathProgramCache]: Analyzing trace with hash -67233648, now seen corresponding path program 1 times [2019-11-21 21:49:47,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:49:47,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1772783683] [2019-11-21 21:49:47,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:49:47,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 21:49:47,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:49:47,919 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:49:47,919 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:49:47,926 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:49:47,927 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:49:47,927 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 21:49:48,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:48,006 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:49:48,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:48,837 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1772783683] [2019-11-21 21:49:48,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:49:48,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-21 21:49:48,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969592063] [2019-11-21 21:49:48,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 21:49:48,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:49:48,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 21:49:48,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-21 21:49:48,841 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand 14 states. [2019-11-21 21:49:49,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:49:49,993 INFO L93 Difference]: Finished difference Result 93 states and 108 transitions. [2019-11-21 21:49:49,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 21:49:49,994 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-21 21:49:49,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:49:49,997 INFO L225 Difference]: With dead ends: 93 [2019-11-21 21:49:49,997 INFO L226 Difference]: Without dead ends: 93 [2019-11-21 21:49:49,998 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2019-11-21 21:49:49,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-11-21 21:49:50,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2019-11-21 21:49:50,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-11-21 21:49:50,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2019-11-21 21:49:50,009 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 16 [2019-11-21 21:49:50,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:49:50,009 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 97 transitions. [2019-11-21 21:49:50,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 21:49:50,009 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2019-11-21 21:49:50,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 21:49:50,010 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:49:50,010 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:49:50,210 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:50,212 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:49:50,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:49:50,213 INFO L82 PathProgramCache]: Analyzing trace with hash 820270032, now seen corresponding path program 1 times [2019-11-21 21:49:50,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:49:50,214 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [365655811] [2019-11-21 21:49:50,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:49:50,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 21:49:50,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:49:50,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:50,485 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:49:50,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:50,525 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [365655811] [2019-11-21 21:49:50,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:49:50,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 21:49:50,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618376745] [2019-11-21 21:49:50,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 21:49:50,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:49:50,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 21:49:50,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:49:50,528 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. Second operand 5 states. [2019-11-21 21:49:50,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:49:50,585 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2019-11-21 21:49:50,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 21:49:50,591 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 21:49:50,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:49:50,592 INFO L225 Difference]: With dead ends: 84 [2019-11-21 21:49:50,592 INFO L226 Difference]: Without dead ends: 84 [2019-11-21 21:49:50,593 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:49:50,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-21 21:49:50,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-21 21:49:50,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-21 21:49:50,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2019-11-21 21:49:50,603 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 16 [2019-11-21 21:49:50,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:49:50,603 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2019-11-21 21:49:50,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 21:49:50,604 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2019-11-21 21:49:50,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 21:49:50,606 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:49:50,606 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:49:50,806 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:50,807 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:49:50,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:49:50,808 INFO L82 PathProgramCache]: Analyzing trace with hash -2083416263, now seen corresponding path program 1 times [2019-11-21 21:49:50,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:49:50,808 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1449733321] [2019-11-21 21:49:50,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:49:51,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 21:49:51,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:49:51,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:51,032 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:49:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:51,122 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1449733321] [2019-11-21 21:49:51,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:49:51,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 21:49:51,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044972489] [2019-11-21 21:49:51,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 21:49:51,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:49:51,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 21:49:51,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:49:51,125 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 5 states. [2019-11-21 21:49:51,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:49:51,179 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2019-11-21 21:49:51,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 21:49:51,180 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 21:49:51,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:49:51,181 INFO L225 Difference]: With dead ends: 84 [2019-11-21 21:49:51,181 INFO L226 Difference]: Without dead ends: 84 [2019-11-21 21:49:51,182 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:49:51,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-21 21:49:51,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-21 21:49:51,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-21 21:49:51,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2019-11-21 21:49:51,189 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 17 [2019-11-21 21:49:51,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:49:51,190 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2019-11-21 21:49:51,190 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 21:49:51,192 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2019-11-21 21:49:51,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 21:49:51,193 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:49:51,193 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:49:51,393 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:51,394 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:49:51,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:49:51,394 INFO L82 PathProgramCache]: Analyzing trace with hash -340605928, now seen corresponding path program 1 times [2019-11-21 21:49:51,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:49:51,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1432057758] [2019-11-21 21:49:51,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:49:51,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 21:49:51,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:49:51,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:51,628 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:49:51,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:51,680 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1432057758] [2019-11-21 21:49:51,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:49:51,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 21:49:51,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657410498] [2019-11-21 21:49:51,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 21:49:51,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:49:51,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 21:49:51,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 21:49:51,682 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 3 states. [2019-11-21 21:49:51,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:49:51,838 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2019-11-21 21:49:51,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 21:49:51,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-21 21:49:51,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:49:51,840 INFO L225 Difference]: With dead ends: 120 [2019-11-21 21:49:51,840 INFO L226 Difference]: Without dead ends: 115 [2019-11-21 21:49:51,841 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 21:49:51,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-21 21:49:51,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 80. [2019-11-21 21:49:51,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-21 21:49:51,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-11-21 21:49:51,849 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 17 [2019-11-21 21:49:51,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:49:51,849 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2019-11-21 21:49:51,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 21:49:51,850 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2019-11-21 21:49:51,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 21:49:51,850 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:49:51,851 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:49:52,058 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:52,059 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:49:52,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:49:52,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1976385840, now seen corresponding path program 1 times [2019-11-21 21:49:52,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:49:52,060 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [883199246] [2019-11-21 21:49:52,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:49:52,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-21 21:49:52,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:49:52,347 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:49:52,347 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:49:52,358 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:49:52,359 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:49:52,359 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 21:49:52,491 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:52,492 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:49:53,387 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:49:53,693 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-21 21:49:54,032 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:54,033 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [883199246] [2019-11-21 21:49:54,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 21:49:54,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2019-11-21 21:49:54,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334289426] [2019-11-21 21:49:54,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-21 21:49:54,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:49:54,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-21 21:49:54,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-21 21:49:54,035 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 19 states. [2019-11-21 21:49:55,682 WARN L192 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 21:49:57,927 WARN L192 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 21:49:58,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:49:58,828 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2019-11-21 21:49:58,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-21 21:49:58,834 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2019-11-21 21:49:58,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:49:58,835 INFO L225 Difference]: With dead ends: 97 [2019-11-21 21:49:58,835 INFO L226 Difference]: Without dead ends: 97 [2019-11-21 21:49:58,836 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2019-11-21 21:49:58,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-21 21:49:58,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2019-11-21 21:49:58,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-21 21:49:58,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2019-11-21 21:49:58,845 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 22 [2019-11-21 21:49:58,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:49:58,845 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2019-11-21 21:49:58,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-21 21:49:58,845 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2019-11-21 21:49:58,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 21:49:58,846 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:49:58,847 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:49:59,047 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:59,048 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:49:59,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:49:59,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1887639459, now seen corresponding path program 1 times [2019-11-21 21:49:59,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:49:59,050 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [380249354] [2019-11-21 21:49:59,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:49:59,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 21:49:59,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:49:59,402 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:59,403 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:49:59,602 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:59,602 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [380249354] [2019-11-21 21:49:59,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 21:49:59,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-21 21:49:59,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623247438] [2019-11-21 21:49:59,603 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-21 21:49:59,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:49:59,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-21 21:49:59,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-21 21:49:59,605 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand 12 states. [2019-11-21 21:50:00,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:50:00,016 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2019-11-21 21:50:00,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 21:50:00,017 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2019-11-21 21:50:00,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:50:00,018 INFO L225 Difference]: With dead ends: 98 [2019-11-21 21:50:00,018 INFO L226 Difference]: Without dead ends: 98 [2019-11-21 21:50:00,019 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-11-21 21:50:00,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-21 21:50:00,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2019-11-21 21:50:00,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-21 21:50:00,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2019-11-21 21:50:00,025 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 35 [2019-11-21 21:50:00,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:50:00,025 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2019-11-21 21:50:00,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-21 21:50:00,026 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2019-11-21 21:50:00,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-21 21:50:00,027 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:50:00,027 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:50:00,230 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:50:00,231 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:50:00,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:50:00,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1668351152, now seen corresponding path program 2 times [2019-11-21 21:50:00,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:50:00,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [40633287] [2019-11-21 21:50:00,233 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:50:00,567 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-21 21:50:00,567 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 21:50:00,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-21 21:50:00,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:50:00,583 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:50:00,584 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:50:00,589 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:50:00,589 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:50:00,589 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 21:50:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:50:00,840 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:50:03,084 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:50:03,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [40633287] [2019-11-21 21:50:03,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 21:50:03,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2019-11-21 21:50:03,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773114383] [2019-11-21 21:50:03,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-21 21:50:03,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:50:03,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-21 21:50:03,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2019-11-21 21:50:03,087 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand 26 states. [2019-11-21 21:50:05,406 WARN L192 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2019-11-21 21:50:06,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:50:06,419 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2019-11-21 21:50:06,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-21 21:50:06,420 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 34 [2019-11-21 21:50:06,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:50:06,422 INFO L225 Difference]: With dead ends: 108 [2019-11-21 21:50:06,423 INFO L226 Difference]: Without dead ends: 108 [2019-11-21 21:50:06,424 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=291, Invalid=1349, Unknown=0, NotChecked=0, Total=1640 [2019-11-21 21:50:06,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-11-21 21:50:06,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2019-11-21 21:50:06,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-21 21:50:06,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2019-11-21 21:50:06,431 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 34 [2019-11-21 21:50:06,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:50:06,432 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2019-11-21 21:50:06,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-21 21:50:06,432 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2019-11-21 21:50:06,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-21 21:50:06,434 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:50:06,434 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:50:06,639 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:50:06,639 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:50:06,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:50:06,640 INFO L82 PathProgramCache]: Analyzing trace with hash -67864624, now seen corresponding path program 3 times [2019-11-21 21:50:06,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:50:06,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1192526190] [2019-11-21 21:50:06,641 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:50:07,213 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-21 21:50:07,213 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 21:50:07,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-21 21:50:07,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:50:07,263 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:50:07,263 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:50:07,271 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:50:07,272 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:50:07,272 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 21:50:07,920 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:50:07,920 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:50:08,562 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2019-11-21 21:50:09,513 WARN L192 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2019-11-21 21:50:10,637 WARN L192 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2019-11-21 21:50:11,051 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-21 21:50:11,479 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-21 21:50:11,927 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-21 21:50:12,871 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-21 21:50:13,984 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 21:50:15,501 WARN L192 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-11-21 21:50:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:50:16,360 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1192526190] [2019-11-21 21:50:16,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 21:50:16,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21] total 38 [2019-11-21 21:50:16,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298731903] [2019-11-21 21:50:16,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-11-21 21:50:16,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:50:16,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-11-21 21:50:16,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=1097, Unknown=0, NotChecked=0, Total=1406 [2019-11-21 21:50:16,365 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand 38 states. [2019-11-21 21:50:17,304 WARN L192 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2019-11-21 21:50:18,079 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-11-21 21:50:22,593 WARN L192 SmtUtils]: Spent 2.26 s on a formula simplification that was a NOOP. DAG size: 144 [2019-11-21 21:50:25,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:50:25,518 INFO L93 Difference]: Finished difference Result 104 states and 110 transitions. [2019-11-21 21:50:25,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-21 21:50:25,520 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 46 [2019-11-21 21:50:25,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:50:25,521 INFO L225 Difference]: With dead ends: 104 [2019-11-21 21:50:25,521 INFO L226 Difference]: Without dead ends: 104 [2019-11-21 21:50:25,522 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 49 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=358, Invalid=1364, Unknown=0, NotChecked=0, Total=1722 [2019-11-21 21:50:25,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-11-21 21:50:25,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2019-11-21 21:50:25,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-21 21:50:25,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2019-11-21 21:50:25,531 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 46 [2019-11-21 21:50:25,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:50:25,532 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2019-11-21 21:50:25,532 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-11-21 21:50:25,532 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2019-11-21 21:50:25,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 21:50:25,534 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:50:25,534 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:50:25,739 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:50:25,740 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:50:25,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:50:25,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1492272183, now seen corresponding path program 2 times [2019-11-21 21:50:25,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:50:25,743 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1589758474] [2019-11-21 21:50:25,743 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:50:26,009 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 21:50:26,009 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 21:50:26,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 21:50:26,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:50:26,034 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 21:50:26,035 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:50:26,105 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 21:50:26,105 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1589758474] [2019-11-21 21:50:26,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:50:26,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-21 21:50:26,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789976402] [2019-11-21 21:50:26,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 21:50:26,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:50:26,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 21:50:26,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-21 21:50:26,109 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand 7 states. [2019-11-21 21:50:26,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:50:26,202 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2019-11-21 21:50:26,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 21:50:26,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-21 21:50:26,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:50:26,205 INFO L225 Difference]: With dead ends: 133 [2019-11-21 21:50:26,205 INFO L226 Difference]: Without dead ends: 130 [2019-11-21 21:50:26,205 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-21 21:50:26,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-11-21 21:50:26,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 103. [2019-11-21 21:50:26,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-21 21:50:26,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2019-11-21 21:50:26,210 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 56 [2019-11-21 21:50:26,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:50:26,211 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2019-11-21 21:50:26,211 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 21:50:26,211 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2019-11-21 21:50:26,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 21:50:26,212 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:50:26,213 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:50:26,416 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:50:26,417 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:50:26,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:50:26,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1535917294, now seen corresponding path program 1 times [2019-11-21 21:50:26,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:50:26,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1172594059] [2019-11-21 21:50:26,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:50:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:50:26,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 21:50:26,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:50:26,884 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:50:26,884 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:50:26,887 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:50:26,888 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:50:26,888 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 21:50:26,997 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:50:26,998 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-21 21:50:26,999 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:50:27,017 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 21:50:27,018 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 21:50:27,018 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-21 21:50:27,046 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 21:50:27,047 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:50:27,375 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-21 21:50:27,376 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1172594059] [2019-11-21 21:50:27,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 21:50:27,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-21 21:50:27,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169619410] [2019-11-21 21:50:27,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 21:50:27,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:50:27,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 21:50:27,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-11-21 21:50:27,379 INFO L87 Difference]: Start difference. First operand 103 states and 108 transitions. Second operand 8 states. [2019-11-21 21:50:45,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:50:45,590 INFO L93 Difference]: Finished difference Result 161 states and 179 transitions. [2019-11-21 21:50:45,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 21:50:45,590 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-21 21:50:45,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:50:45,592 INFO L225 Difference]: With dead ends: 161 [2019-11-21 21:50:45,592 INFO L226 Difference]: Without dead ends: 161 [2019-11-21 21:50:45,593 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=83, Invalid=378, Unknown=1, NotChecked=0, Total=462 [2019-11-21 21:50:45,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-11-21 21:50:45,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 109. [2019-11-21 21:50:45,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-21 21:50:45,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2019-11-21 21:50:45,599 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 56 [2019-11-21 21:50:45,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:50:45,599 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2019-11-21 21:50:45,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 21:50:45,600 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2019-11-21 21:50:45,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 21:50:45,601 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:50:45,601 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:50:45,805 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:50:45,806 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:50:45,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:50:45,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1535917293, now seen corresponding path program 1 times [2019-11-21 21:50:45,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:50:45,807 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1317221721] [2019-11-21 21:50:45,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:50:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:50:46,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-21 21:50:46,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:50:46,299 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:50:46,300 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:50:46,309 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:50:46,314 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:50:46,314 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 21:50:46,322 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:50:46,322 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:50:46,323 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 21:50:48,529 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 21:50:48,531 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-21 21:50:48,531 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:50:48,547 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:50:48,560 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:50:48,561 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-21 21:50:48,561 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 21:50:48,575 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:50:48,575 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:50:48,576 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2019-11-21 21:50:48,615 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 21:50:48,615 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:50:48,801 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 21:50:51,091 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2019-11-21 21:50:51,093 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:50:51,093 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:50:51,094 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 21:50:51,095 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 21:50:51,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:50:51,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 21:50:51,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 21:50:59,848 WARN L192 SmtUtils]: Spent 7.88 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 21:50:59,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:51:05,263 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_257|], 2=[|v_#length_218|]} [2019-11-21 21:51:05,271 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 21:51:05,271 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:51:05,280 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:51:05,288 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 21:51:05,289 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 21:51:05,296 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:51:05,297 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:51:05,297 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-21 21:51:05,927 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 21:51:05,938 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 21:51:05,938 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:51:05,960 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:51:05,964 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 21:51:05,965 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 21:51:05,991 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:51:05,992 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 21:51:05,992 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-21 21:51:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 21:51:06,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1317221721] [2019-11-21 21:51:06,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 21:51:06,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-21 21:51:06,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691006761] [2019-11-21 21:51:06,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-21 21:51:06,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:51:06,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-21 21:51:06,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=407, Unknown=2, NotChecked=0, Total=462 [2019-11-21 21:51:06,304 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand 22 states. [2019-11-21 21:51:27,311 WARN L192 SmtUtils]: Spent 4.14 s on a formula simplification that was a NOOP. DAG size: 56 [2019-11-21 21:51:56,714 WARN L192 SmtUtils]: Spent 8.27 s on a formula simplification that was a NOOP. DAG size: 58 [2019-11-21 21:52:06,148 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-21 21:52:15,324 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-21 21:52:19,153 WARN L192 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-11-21 21:52:29,529 WARN L192 SmtUtils]: Spent 4.83 s on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-11-21 21:52:45,159 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2019-11-21 21:52:50,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:52:50,985 INFO L93 Difference]: Finished difference Result 278 states and 325 transitions. [2019-11-21 21:52:50,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-21 21:52:50,986 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-21 21:52:50,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:52:50,989 INFO L225 Difference]: With dead ends: 278 [2019-11-21 21:52:50,989 INFO L226 Difference]: Without dead ends: 278 [2019-11-21 21:52:50,990 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 61.1s TimeCoverageRelationStatistics Valid=178, Invalid=1006, Unknown=6, NotChecked=0, Total=1190 [2019-11-21 21:52:50,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-11-21 21:52:50,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 153. [2019-11-21 21:52:50,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-21 21:52:50,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 188 transitions. [2019-11-21 21:52:51,000 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 188 transitions. Word has length 56 [2019-11-21 21:52:51,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:52:51,000 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 188 transitions. [2019-11-21 21:52:51,001 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-21 21:52:51,001 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 188 transitions. [2019-11-21 21:52:51,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 21:52:51,002 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:52:51,002 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:52:51,206 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:52:51,207 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:52:51,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:52:51,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1452186463, now seen corresponding path program 1 times [2019-11-21 21:52:51,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:52:51,209 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1507912159] [2019-11-21 21:52:51,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:52:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:52:51,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 21:52:51,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:52:51,539 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 21:52:51,539 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:52:51,579 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 21:52:51,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1507912159] [2019-11-21 21:52:51,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:52:51,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 21:52:51,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003020178] [2019-11-21 21:52:51,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 21:52:51,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:52:51,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 21:52:51,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:52:51,582 INFO L87 Difference]: Start difference. First operand 153 states and 188 transitions. Second operand 5 states. [2019-11-21 21:52:51,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:52:51,636 INFO L93 Difference]: Finished difference Result 174 states and 211 transitions. [2019-11-21 21:52:51,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 21:52:51,637 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-21 21:52:51,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:52:51,638 INFO L225 Difference]: With dead ends: 174 [2019-11-21 21:52:51,638 INFO L226 Difference]: Without dead ends: 174 [2019-11-21 21:52:51,639 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 21:52:51,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2019-11-21 21:52:51,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 155. [2019-11-21 21:52:51,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-11-21 21:52:51,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 187 transitions. [2019-11-21 21:52:51,649 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 187 transitions. Word has length 58 [2019-11-21 21:52:51,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:52:51,650 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 187 transitions. [2019-11-21 21:52:51,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 21:52:51,650 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 187 transitions. [2019-11-21 21:52:51,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 21:52:51,651 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:52:51,651 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:52:51,854 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:52:51,855 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:52:51,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:52:51,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1099970498, now seen corresponding path program 1 times [2019-11-21 21:52:51,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:52:51,856 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1184383051] [2019-11-21 21:52:51,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:52:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:52:52,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 21:52:52,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:52:52,282 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 21:52:52,283 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:52:52,348 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 21:52:52,349 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1184383051] [2019-11-21 21:52:52,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:52:52,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 21:52:52,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883208211] [2019-11-21 21:52:52,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 21:52:52,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:52:52,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 21:52:52,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 21:52:52,350 INFO L87 Difference]: Start difference. First operand 155 states and 187 transitions. Second operand 6 states. [2019-11-21 21:52:52,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:52:52,434 INFO L93 Difference]: Finished difference Result 164 states and 196 transitions. [2019-11-21 21:52:52,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 21:52:52,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-21 21:52:52,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:52:52,438 INFO L225 Difference]: With dead ends: 164 [2019-11-21 21:52:52,438 INFO L226 Difference]: Without dead ends: 164 [2019-11-21 21:52:52,438 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-21 21:52:52,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-11-21 21:52:52,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 157. [2019-11-21 21:52:52,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-11-21 21:52:52,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 189 transitions. [2019-11-21 21:52:52,446 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 189 transitions. Word has length 58 [2019-11-21 21:52:52,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:52:52,446 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 189 transitions. [2019-11-21 21:52:52,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 21:52:52,447 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 189 transitions. [2019-11-21 21:52:52,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-21 21:52:52,448 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:52:52,448 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:52:52,651 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:52:52,652 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:52:52,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:52:52,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1452868472, now seen corresponding path program 1 times [2019-11-21 21:52:52,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:52:52,654 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [122758186] [2019-11-21 21:52:52,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:52:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:52:53,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 21:52:53,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:52:53,078 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:52:53,078 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:52:53,082 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:52:53,082 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:52:53,082 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 21:52:53,149 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 21:52:53,149 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:52:53,424 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:52:53,425 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 21:52:53,431 INFO L168 Benchmark]: Toolchain (without parser) took 189965.70 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 357.0 MB). Free memory was 956.3 MB in the beginning and 878.3 MB in the end (delta: 78.0 MB). Peak memory consumption was 435.1 MB. Max. memory is 11.5 GB. [2019-11-21 21:52:53,431 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 21:52:53,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 863.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -135.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-11-21 21:52:53,432 INFO L168 Benchmark]: Boogie Preprocessor took 115.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 21:52:53,433 INFO L168 Benchmark]: RCFGBuilder took 1873.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.6 MB in the end (delta: 118.1 MB). Peak memory consumption was 118.1 MB. Max. memory is 11.5 GB. [2019-11-21 21:52:53,433 INFO L168 Benchmark]: TraceAbstraction took 187109.11 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 219.7 MB). Free memory was 960.9 MB in the beginning and 878.3 MB in the end (delta: 82.7 MB). Peak memory consumption was 302.3 MB. Max. memory is 11.5 GB. [2019-11-21 21:52:53,435 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 863.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -135.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 115.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1873.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.6 MB in the end (delta: 118.1 MB). Peak memory consumption was 118.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 187109.11 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 219.7 MB). Free memory was 960.9 MB in the beginning and 878.3 MB in the end (delta: 82.7 MB). Peak memory consumption was 302.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...