./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test6.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 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_test6.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e573255b947653c3fea707757dfa9bfc72698e67 --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-264dba8 [2019-11-21 11:03:56,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 11:03:56,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 11:03:56,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 11:03:56,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 11:03:56,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 11:03:56,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 11:03:56,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 11:03:56,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 11:03:56,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 11:03:56,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 11:03:56,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 11:03:56,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 11:03:56,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 11:03:56,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 11:03:56,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 11:03:56,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 11:03:56,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 11:03:56,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 11:03:56,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 11:03:56,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 11:03:56,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 11:03:56,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 11:03:56,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 11:03:56,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 11:03:56,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 11:03:56,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 11:03:56,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 11:03:56,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 11:03:56,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 11:03:56,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 11:03:56,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 11:03:56,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 11:03:56,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 11:03:56,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 11:03:56,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 11:03:56,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 11:03:56,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 11:03:56,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 11:03:56,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 11:03:56,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 11:03:56,220 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 11:03:56,247 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 11:03:56,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 11:03:56,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 11:03:56,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 11:03:56,250 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 11:03:56,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 11:03:56,251 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 11:03:56,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 11:03:56,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 11:03:56,251 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 11:03:56,253 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 11:03:56,253 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 11:03:56,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 11:03:56,254 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 11:03:56,254 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 11:03:56,255 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 11:03:56,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 11:03:56,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 11:03:56,255 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 11:03:56,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 11:03:56,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:03:56,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 11:03:56,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 11:03:56,257 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 11:03:56,257 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 11:03:56,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 11:03:56,258 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e573255b947653c3fea707757dfa9bfc72698e67 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 11:03:56,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 11:03:56,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 11:03:56,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 11:03:56,614 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 11:03:56,615 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 11:03:56,616 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test6.i [2019-11-21 11:03:56,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc82c2a16/22111aebee3f47db96ad9cead0fe6155/FLAG08d0b05e2 [2019-11-21 11:03:57,215 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 11:03:57,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test6.i [2019-11-21 11:03:57,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc82c2a16/22111aebee3f47db96ad9cead0fe6155/FLAG08d0b05e2 [2019-11-21 11:03:57,507 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc82c2a16/22111aebee3f47db96ad9cead0fe6155 [2019-11-21 11:03:57,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 11:03:57,517 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 11:03:57,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 11:03:57,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 11:03:57,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 11:03:57,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:03:57" (1/1) ... [2019-11-21 11:03:57,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7109c780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:57, skipping insertion in model container [2019-11-21 11:03:57,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:03:57" (1/1) ... [2019-11-21 11:03:57,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 11:03:57,626 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:03:58,141 INFO L966 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 11:03:58,142 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 11:03:58,142 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:03:58,170 INFO L966 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 11:03:58,171 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 11:03:58,171 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:03:58,173 INFO L966 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 11:03:58,174 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 11:03:58,174 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:03:58,177 INFO L966 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 11:03:58,177 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 11:03:58,177 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:03:58,200 INFO L966 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 11:03:58,201 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 11:03:58,201 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:03:58,214 INFO L966 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 11:03:58,215 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [766] [2019-11-21 11:03:58,215 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:03:58,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:03:58,245 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 11:03:58,253 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:03:58,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:03:58,335 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 11:03:58,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:03:58,487 INFO L205 MainTranslator]: Completed translation [2019-11-21 11:03:58,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:58 WrapperNode [2019-11-21 11:03:58,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 11:03:58,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 11:03:58,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 11:03:58,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 11:03:58,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:58" (1/1) ... [2019-11-21 11:03:58,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:58" (1/1) ... [2019-11-21 11:03:58,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:58" (1/1) ... [2019-11-21 11:03:58,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:58" (1/1) ... [2019-11-21 11:03:58,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:58" (1/1) ... [2019-11-21 11:03:58,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:58" (1/1) ... [2019-11-21 11:03:58,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:58" (1/1) ... [2019-11-21 11:03:58,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 11:03:58,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 11:03:58,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 11:03:58,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 11:03:58,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:03:58,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 11:03:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 11:03:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:03:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 11:03:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 11:03:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 11:03:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 11:03:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 11:03:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 11:03:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 11:03:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 11:03:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 11:03:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:03:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 11:03:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 11:03:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 11:03:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 11:03:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 11:03:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 11:03:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 11:03:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 11:03:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 11:03:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 11:03:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 11:03:58,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 11:03:58,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 11:03:58,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 11:03:58,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 11:03:58,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 11:03:58,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 11:03:58,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 11:03:58,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 11:03:58,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 11:03:58,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 11:03:58,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 11:03:58,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 11:03:58,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 11:03:58,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 11:03:58,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 11:03:58,691 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 11:03:58,691 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 11:03:58,691 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2019-11-21 11:03:58,692 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2019-11-21 11:03:58,692 INFO L138 BoogieDeclarations]: Found implementation of procedure probe1_6 [2019-11-21 11:03:58,692 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_6 [2019-11-21 11:03:58,692 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 11:03:58,693 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 11:03:58,693 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 11:03:58,693 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 11:03:58,693 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 11:03:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 11:03:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 11:03:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 11:03:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 11:03:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 11:03:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 11:03:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 11:03:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 11:03:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 11:03:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 11:03:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 11:03:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 11:03:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 11:03:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 11:03:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 11:03:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 11:03:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 11:03:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 11:03:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 11:03:58,698 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 11:03:58,698 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 11:03:58,698 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 11:03:58,698 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 11:03:58,698 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 11:03:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 11:03:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 11:03:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 11:03:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 11:03:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 11:03:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 11:03:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 11:03:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 11:03:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 11:03:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 11:03:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 11:03:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 11:03:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 11:03:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 11:03:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 11:03:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 11:03:58,702 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 11:03:58,702 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 11:03:58,702 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 11:03:58,702 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 11:03:58,702 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 11:03:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 11:03:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 11:03:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 11:03:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 11:03:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 11:03:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 11:03:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 11:03:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 11:03:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 11:03:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 11:03:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 11:03:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 11:03:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 11:03:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 11:03:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 11:03:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 11:03:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 11:03:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 11:03:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 11:03:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 11:03:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 11:03:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 11:03:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 11:03:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 11:03:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 11:03:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 11:03:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 11:03:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 11:03:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 11:03:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 11:03:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 11:03:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 11:03:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 11:03:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 11:03:58,710 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 11:03:58,710 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 11:03:58,710 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 11:03:58,710 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 11:03:58,710 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 11:03:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 11:03:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 11:03:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 11:03:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 11:03:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 11:03:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 11:03:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 11:03:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 11:03:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 11:03:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 11:03:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 11:03:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 11:03:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 11:03:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 11:03:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 11:03:58,714 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 11:03:58,714 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 11:03:58,714 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 11:03:58,714 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 11:03:58,714 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 11:03:58,714 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 11:03:58,715 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 11:03:58,715 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 11:03:58,715 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 11:03:58,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 11:03:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 11:03:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 11:03:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 11:03:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 11:03:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 11:03:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 11:03:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 11:03:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 11:03:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 11:03:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:03:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 11:03:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 11:03:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 11:03:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 11:03:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 11:03:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 11:03:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 11:03:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 11:03:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 11:03:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 11:03:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 11:03:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 11:03:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 11:03:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 11:03:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 11:03:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 11:03:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 11:03:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 11:03:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 11:03:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 11:03:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 11:03:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:03:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 11:03:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 11:03:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 11:03:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 11:03:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 11:03:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 11:03:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 11:03:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 11:03:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 11:03:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 11:03:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 11:03:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 11:03:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 11:03:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 11:03:58,726 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2019-11-21 11:03:58,726 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2019-11-21 11:03:58,726 INFO L130 BoogieDeclarations]: Found specification of procedure probe1_6 [2019-11-21 11:03:58,726 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_6 [2019-11-21 11:03:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 11:03:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 11:03:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 11:03:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 11:03:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 11:03:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 11:03:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 11:03:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 11:03:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 11:03:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 11:03:59,356 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:03:59,856 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:04:00,335 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 11:04:00,335 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 11:04:00,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:04:00 BoogieIcfgContainer [2019-11-21 11:04:00,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 11:04:00,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 11:04:00,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 11:04:00,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 11:04:00,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:03:57" (1/3) ... [2019-11-21 11:04:00,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d71845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:04:00, skipping insertion in model container [2019-11-21 11:04:00,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:58" (2/3) ... [2019-11-21 11:04:00,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d71845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:04:00, skipping insertion in model container [2019-11-21 11:04:00,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:04:00" (3/3) ... [2019-11-21 11:04:00,347 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test6.i [2019-11-21 11:04:00,357 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 11:04:00,366 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 83 error locations. [2019-11-21 11:04:00,379 INFO L249 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2019-11-21 11:04:00,400 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 11:04:00,400 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 11:04:00,400 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 11:04:00,400 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 11:04:00,400 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 11:04:00,400 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 11:04:00,401 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 11:04:00,401 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 11:04:00,424 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2019-11-21 11:04:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 11:04:00,434 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:04:00,435 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:04:00,436 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 11:04:00,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:04:00,443 INFO L82 PathProgramCache]: Analyzing trace with hash 34848336, now seen corresponding path program 1 times [2019-11-21 11:04:00,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:04:00,456 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [993142536] [2019-11-21 11:04:00,456 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 11:04:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:04:00,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:04:00,768 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:04:00,826 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 11:04:00,827 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:04:00,994 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 11:04:00,995 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [993142536] [2019-11-21 11:04:00,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:04:00,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 11:04:00,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648122013] [2019-11-21 11:04:01,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:04:01,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:04:01,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:04:01,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:04:01,021 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 5 states. [2019-11-21 11:04:01,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:04:01,106 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2019-11-21 11:04:01,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:04:01,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-21 11:04:01,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:04:01,121 INFO L225 Difference]: With dead ends: 85 [2019-11-21 11:04:01,121 INFO L226 Difference]: Without dead ends: 82 [2019-11-21 11:04:01,123 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:04:01,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-11-21 11:04:01,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 65. [2019-11-21 11:04:01,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-21 11:04:01,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2019-11-21 11:04:01,178 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 20 [2019-11-21 11:04:01,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:04:01,179 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2019-11-21 11:04:01,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:04:01,179 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2019-11-21 11:04:01,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 11:04:01,180 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:04:01,180 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:04:01,393 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:04:01,394 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 11:04:01,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:04:01,395 INFO L82 PathProgramCache]: Analyzing trace with hash -161665169, now seen corresponding path program 1 times [2019-11-21 11:04:01,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:04:01,396 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1372896035] [2019-11-21 11:04:01,397 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 11:04:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:04:01,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-21 11:04:01,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:04:01,831 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 11:04:01,832 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 11:04:01,833 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:04:01,869 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-21 11:04:01,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:01,875 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 11:04:01,876 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-21 11:04:01,877 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:01,910 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 5 treesize of output 3 [2019-11-21 11:04:01,910 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:04:01,913 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:04:01,913 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:04:01,913 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2019-11-21 11:04:01,926 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 11:04:01,926 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:04:02,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:02,015 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 6 treesize of output 4 [2019-11-21 11:04:02,015 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:04:02,023 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:04:02,024 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:04:02,024 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:12 [2019-11-21 11:04:02,050 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 11:04:02,051 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1372896035] [2019-11-21 11:04:02,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:04:02,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-21 11:04:02,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635713969] [2019-11-21 11:04:02,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:04:02,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:04:02,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:04:02,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:04:02,056 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 5 states. [2019-11-21 11:04:02,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:04:02,308 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2019-11-21 11:04:02,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:04:02,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-21 11:04:02,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:04:02,313 INFO L225 Difference]: With dead ends: 108 [2019-11-21 11:04:02,313 INFO L226 Difference]: Without dead ends: 105 [2019-11-21 11:04:02,315 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:04:02,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-11-21 11:04:02,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 83. [2019-11-21 11:04:02,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-11-21 11:04:02,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 96 transitions. [2019-11-21 11:04:02,330 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 96 transitions. Word has length 20 [2019-11-21 11:04:02,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:04:02,330 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 96 transitions. [2019-11-21 11:04:02,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:04:02,367 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 96 transitions. [2019-11-21 11:04:02,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 11:04:02,369 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:04:02,369 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:04:02,573 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:04:02,574 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 11:04:02,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:04:02,575 INFO L82 PathProgramCache]: Analyzing trace with hash -161665168, now seen corresponding path program 1 times [2019-11-21 11:04:02,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:04:02,576 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2071954250] [2019-11-21 11:04:02,576 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 11:04:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:04:02,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-21 11:04:02,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:04:02,879 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:04:02,880 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-21 11:04:02,881 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:04:02,910 INFO L567 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2019-11-21 11:04:02,911 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:04:02,911 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2019-11-21 11:04:02,930 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 5 treesize of output 3 [2019-11-21 11:04:02,931 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:04:02,936 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:04:02,937 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:04:02,937 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:7 [2019-11-21 11:04:02,960 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 11:04:02,960 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:04:03,109 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-21 11:04:03,121 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 8 treesize of output 6 [2019-11-21 11:04:03,122 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 11:04:03,148 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:04:03,149 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 11:04:03,149 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:32 [2019-11-21 11:04:03,220 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 11:04:03,221 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2071954250] [2019-11-21 11:04:03,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:04:03,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-21 11:04:03,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695937213] [2019-11-21 11:04:03,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 11:04:03,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:04:03,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 11:04:03,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:04:03,226 INFO L87 Difference]: Start difference. First operand 83 states and 96 transitions. Second operand 6 states. [2019-11-21 11:04:03,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:04:03,510 INFO L93 Difference]: Finished difference Result 120 states and 128 transitions. [2019-11-21 11:04:03,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:04:03,511 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-11-21 11:04:03,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:04:03,513 INFO L225 Difference]: With dead ends: 120 [2019-11-21 11:04:03,513 INFO L226 Difference]: Without dead ends: 119 [2019-11-21 11:04:03,514 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:04:03,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-11-21 11:04:03,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 104. [2019-11-21 11:04:03,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-21 11:04:03,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2019-11-21 11:04:03,525 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 20 [2019-11-21 11:04:03,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:04:03,526 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2019-11-21 11:04:03,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 11:04:03,526 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2019-11-21 11:04:03,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 11:04:03,527 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:04:03,527 INFO L410 BasicCegarLoop]: trace histogram [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 11:04:03,728 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:04:03,734 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 11:04:03,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:04:03,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1491224129, now seen corresponding path program 1 times [2019-11-21 11:04:03,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:04:03,736 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [922028022] [2019-11-21 11:04:03,736 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 11:04:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:04:03,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:04:03,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:04:03,985 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 11:04:03,985 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:04:04,030 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 11:04:04,030 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [922028022] [2019-11-21 11:04:04,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:04:04,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 11:04:04,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81855968] [2019-11-21 11:04:04,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:04:04,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:04:04,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:04:04,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:04:04,032 INFO L87 Difference]: Start difference. First operand 104 states and 124 transitions. Second operand 5 states. [2019-11-21 11:04:04,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:04:04,069 INFO L93 Difference]: Finished difference Result 103 states and 122 transitions. [2019-11-21 11:04:04,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:04:04,072 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 11:04:04,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:04:04,073 INFO L225 Difference]: With dead ends: 103 [2019-11-21 11:04:04,073 INFO L226 Difference]: Without dead ends: 103 [2019-11-21 11:04:04,077 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:04:04,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-11-21 11:04:04,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2019-11-21 11:04:04,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-21 11:04:04,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2019-11-21 11:04:04,094 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 22 [2019-11-21 11:04:04,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:04:04,094 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2019-11-21 11:04:04,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:04:04,095 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2019-11-21 11:04:04,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 11:04:04,097 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:04:04,097 INFO L410 BasicCegarLoop]: trace histogram [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 11:04:04,307 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:04:04,309 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 11:04:04,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:04:04,309 INFO L82 PathProgramCache]: Analyzing trace with hash -741370712, now seen corresponding path program 1 times [2019-11-21 11:04:04,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:04:04,310 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1830651898] [2019-11-21 11:04:04,311 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 11:04:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:04:04,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:04:04,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:04:04,560 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 11:04:04,560 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:04:04,644 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 11:04:04,644 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1830651898] [2019-11-21 11:04:04,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:04:04,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-21 11:04:04,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360643708] [2019-11-21 11:04:04,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 11:04:04,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:04:04,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 11:04:04,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-21 11:04:04,647 INFO L87 Difference]: Start difference. First operand 103 states and 122 transitions. Second operand 10 states. [2019-11-21 11:04:04,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:04:04,720 INFO L93 Difference]: Finished difference Result 113 states and 130 transitions. [2019-11-21 11:04:04,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 11:04:04,726 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2019-11-21 11:04:04,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:04:04,727 INFO L225 Difference]: With dead ends: 113 [2019-11-21 11:04:04,728 INFO L226 Difference]: Without dead ends: 109 [2019-11-21 11:04:04,728 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2019-11-21 11:04:04,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-21 11:04:04,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 103. [2019-11-21 11:04:04,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-21 11:04:04,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 119 transitions. [2019-11-21 11:04:04,746 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 119 transitions. Word has length 22 [2019-11-21 11:04:04,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:04:04,748 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 119 transitions. [2019-11-21 11:04:04,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 11:04:04,749 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 119 transitions. [2019-11-21 11:04:04,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 11:04:04,750 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:04:04,750 INFO L410 BasicCegarLoop]: trace histogram [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 11:04:04,954 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:04:04,954 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 11:04:04,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:04:04,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1016692699, now seen corresponding path program 1 times [2019-11-21 11:04:04,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:04:04,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [113502203] [2019-11-21 11:04:04,955 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 11:04:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:04:05,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 11:04:05,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:04:05,276 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 11:04:05,277 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:04:05,376 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 11:04:05,376 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [113502203] [2019-11-21 11:04:05,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:04:05,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-21 11:04:05,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994975006] [2019-11-21 11:04:05,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 11:04:05,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:04:05,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 11:04:05,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:04:05,378 INFO L87 Difference]: Start difference. First operand 103 states and 119 transitions. Second operand 9 states. [2019-11-21 11:04:05,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:04:05,559 INFO L93 Difference]: Finished difference Result 102 states and 117 transitions. [2019-11-21 11:04:05,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:04:05,560 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2019-11-21 11:04:05,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:04:05,561 INFO L225 Difference]: With dead ends: 102 [2019-11-21 11:04:05,561 INFO L226 Difference]: Without dead ends: 102 [2019-11-21 11:04:05,562 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:04:05,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-21 11:04:05,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-11-21 11:04:05,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-21 11:04:05,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 117 transitions. [2019-11-21 11:04:05,575 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 117 transitions. Word has length 23 [2019-11-21 11:04:05,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:04:05,576 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 117 transitions. [2019-11-21 11:04:05,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 11:04:05,576 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 117 transitions. [2019-11-21 11:04:05,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-21 11:04:05,577 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:04:05,577 INFO L410 BasicCegarLoop]: trace histogram [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 11:04:05,780 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:04:05,781 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 11:04:05,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:04:05,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1452703041, now seen corresponding path program 1 times [2019-11-21 11:04:05,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:04:05,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [79793787] [2019-11-21 11:04:05,783 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 11:04:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:04:06,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:04:06,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:04:06,068 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 11:04:06,068 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:04:06,071 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:04:06,071 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:04:06,071 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:04:06,129 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 11:04:06,129 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:04:06,196 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 11:04:06,197 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [79793787] [2019-11-21 11:04:06,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:04:06,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2019-11-21 11:04:06,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496171846] [2019-11-21 11:04:06,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 11:04:06,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:04:06,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 11:04:06,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:04:06,198 INFO L87 Difference]: Start difference. First operand 102 states and 117 transitions. Second operand 6 states. [2019-11-21 11:04:06,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:04:06,437 INFO L93 Difference]: Finished difference Result 105 states and 116 transitions. [2019-11-21 11:04:06,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:04:06,437 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-21 11:04:06,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:04:06,438 INFO L225 Difference]: With dead ends: 105 [2019-11-21 11:04:06,439 INFO L226 Difference]: Without dead ends: 105 [2019-11-21 11:04:06,439 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:04:06,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-11-21 11:04:06,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 102. [2019-11-21 11:04:06,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-21 11:04:06,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2019-11-21 11:04:06,446 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 24 [2019-11-21 11:04:06,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:04:06,452 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2019-11-21 11:04:06,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 11:04:06,452 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2019-11-21 11:04:06,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-21 11:04:06,453 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:04:06,453 INFO L410 BasicCegarLoop]: trace histogram [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 11:04:06,657 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:04:06,658 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 11:04:06,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:04:06,659 INFO L82 PathProgramCache]: Analyzing trace with hash 947144416, now seen corresponding path program 1 times [2019-11-21 11:04:06,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:04:06,660 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1868929992] [2019-11-21 11:04:06,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:04:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:04:06,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:04:06,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:04:06,977 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 11:04:06,977 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:04:07,009 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 11:04:07,014 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1868929992] [2019-11-21 11:04:07,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:04:07,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-21 11:04:07,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937578322] [2019-11-21 11:04:07,015 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 11:04:07,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:04:07,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 11:04:07,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:04:07,015 INFO L87 Difference]: Start difference. First operand 102 states and 116 transitions. Second operand 6 states. [2019-11-21 11:04:07,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:04:07,061 INFO L93 Difference]: Finished difference Result 97 states and 108 transitions. [2019-11-21 11:04:07,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:04:07,062 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-21 11:04:07,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:04:07,064 INFO L225 Difference]: With dead ends: 97 [2019-11-21 11:04:07,064 INFO L226 Difference]: Without dead ends: 96 [2019-11-21 11:04:07,065 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:04:07,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-11-21 11:04:07,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2019-11-21 11:04:07,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-11-21 11:04:07,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 106 transitions. [2019-11-21 11:04:07,071 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 106 transitions. Word has length 24 [2019-11-21 11:04:07,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:04:07,071 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 106 transitions. [2019-11-21 11:04:07,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 11:04:07,072 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 106 transitions. [2019-11-21 11:04:07,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 11:04:07,075 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:04:07,075 INFO L410 BasicCegarLoop]: trace histogram [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 11:04:07,275 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:04:07,276 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 11:04:07,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:04:07,277 INFO L82 PathProgramCache]: Analyzing trace with hash -2127612171, now seen corresponding path program 1 times [2019-11-21 11:04:07,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:04:07,278 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [162719035] [2019-11-21 11:04:07,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:04:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:04:07,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 11:04:07,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:04:07,629 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 11:04:07,630 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 11:04:07,630 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:04:07,657 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-21 11:04:07,659 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:07,660 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 11:04:07,661 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-21 11:04:07,661 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:07,911 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-11-21 11:04:07,946 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:04:07,946 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-21 11:04:07,948 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:04:07,987 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 11:04:07,988 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 11:04:07,989 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 11:04:08,159 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 11:04:08,159 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:04:11,356 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 11:04:11,356 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [162719035] [2019-11-21 11:04:11,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:04:11,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2019-11-21 11:04:11,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101498675] [2019-11-21 11:04:11,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 11:04:11,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:04:11,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 11:04:11,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2019-11-21 11:04:11,359 INFO L87 Difference]: Start difference. First operand 94 states and 106 transitions. Second operand 14 states. [2019-11-21 11:04:11,930 WARN L192 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-11-21 11:04:12,471 WARN L192 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2019-11-21 11:04:12,900 WARN L192 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2019-11-21 11:04:21,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:04:21,494 INFO L93 Difference]: Finished difference Result 99 states and 107 transitions. [2019-11-21 11:04:21,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 11:04:21,495 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2019-11-21 11:04:21,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:04:21,497 INFO L225 Difference]: With dead ends: 99 [2019-11-21 11:04:21,497 INFO L226 Difference]: Without dead ends: 99 [2019-11-21 11:04:21,497 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 38 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2019-11-21 11:04:21,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-11-21 11:04:21,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2019-11-21 11:04:21,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-21 11:04:21,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 104 transitions. [2019-11-21 11:04:21,503 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 104 transitions. Word has length 28 [2019-11-21 11:04:21,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:04:21,504 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 104 transitions. [2019-11-21 11:04:21,504 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 11:04:21,504 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 104 transitions. [2019-11-21 11:04:21,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 11:04:21,505 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:04:21,505 INFO L410 BasicCegarLoop]: trace histogram [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 11:04:21,706 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:04:21,707 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 11:04:21,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:04:21,707 INFO L82 PathProgramCache]: Analyzing trace with hash -2127612170, now seen corresponding path program 1 times [2019-11-21 11:04:21,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:04:21,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [822489405] [2019-11-21 11:04:21,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:04:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:04:22,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-21 11:04:22,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:04:22,096 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 11:04:22,097 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 11:04:22,097 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:04:22,169 INFO L567 ElimStorePlain]: treesize reduction 10, result has 77.8 percent of original size [2019-11-21 11:04:22,197 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:04:22,198 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-21 11:04:22,198 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:04:22,257 INFO L567 ElimStorePlain]: treesize reduction 10, result has 80.0 percent of original size [2019-11-21 11:04:22,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:22,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:22,260 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 11:04:22,260 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:40 [2019-11-21 11:04:22,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:22,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:22,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:22,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:22,305 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:22,306 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:22,327 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:22,328 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:22,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:22,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:22,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:22,361 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:22,505 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 25 [2019-11-21 11:04:24,647 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:24,713 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:04:24,714 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 52 [2019-11-21 11:04:24,715 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:04:24,721 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 11:04:24,729 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 11:04:24,730 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2019-11-21 11:04:24,730 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:04:24,745 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:04:24,745 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 32 treesize of output 36 [2019-11-21 11:04:24,746 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-21 11:04:24,797 INFO L567 ElimStorePlain]: treesize reduction 29, result has 42.0 percent of original size [2019-11-21 11:04:24,802 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 11:04:24,803 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-21 11:04:24,814 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:04:24,815 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 11:04:24,815 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:103, output treesize:11 [2019-11-21 11:04:24,958 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 11:04:24,959 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:04:25,071 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:27,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:27,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:27,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:27,198 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:27,199 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:04:27,200 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:27,201 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:27,202 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:27,812 WARN L192 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-21 11:04:27,817 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:04:30,566 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 11:04:30,567 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [822489405] [2019-11-21 11:04:30,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:04:30,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2019-11-21 11:04:30,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595286161] [2019-11-21 11:04:30,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-21 11:04:30,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:04:30,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-21 11:04:30,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=168, Unknown=3, NotChecked=0, Total=210 [2019-11-21 11:04:30,570 INFO L87 Difference]: Start difference. First operand 93 states and 104 transitions. Second operand 15 states. [2019-11-21 11:04:35,200 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-11-21 11:04:41,841 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-11-21 11:04:50,410 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2019-11-21 11:05:18,286 WARN L192 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-11-21 11:05:20,570 WARN L838 $PredicateComparison]: unable to prove that (and (or (bvsle |c_~#a6~0.offset| (bvadd |c_~#a6~0.offset| (_ bv8 32))) (forall ((v_prenex_6 (_ BitVec 32))) (not (= (select |c_#valid| v_prenex_6) (_ bv0 1))))) (forall ((v_prenex_5 (_ BitVec 32)) (v_ldv_malloc_~size_47 (_ BitVec 32))) (or (bvsle (bvadd |c_~#a6~0.offset| (_ bv8 32)) (select (store |c_#length| v_prenex_5 v_ldv_malloc_~size_47) |c_~#a6~0.base|)) (not (= (_ bv0 1) (select |c_#valid| v_prenex_5))))) (or (bvsle (_ bv0 32) |c_~#a6~0.offset|) (forall ((|v_ldv_malloc_#t~malloc12.base_28| (_ BitVec 32))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_28|) (_ bv0 1))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (exists ((v_probe1_6_~a.base_BEFORE_CALL_8 (_ BitVec 32))) (= (bvadd (select |c_#length| v_probe1_6_~a.base_BEFORE_CALL_8) (_ bv4294967288 32)) (_ bv0 32)))) is different from false [2019-11-21 11:05:48,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:05:48,291 INFO L93 Difference]: Finished difference Result 106 states and 107 transitions. [2019-11-21 11:05:48,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-21 11:05:48,293 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 28 [2019-11-21 11:05:48,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:05:48,294 INFO L225 Difference]: With dead ends: 106 [2019-11-21 11:05:48,294 INFO L226 Difference]: Without dead ends: 106 [2019-11-21 11:05:48,294 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 36 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 26.2s TimeCoverageRelationStatistics Valid=166, Invalid=532, Unknown=8, NotChecked=50, Total=756 [2019-11-21 11:05:48,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-11-21 11:05:48,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 92. [2019-11-21 11:05:48,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-21 11:05:48,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2019-11-21 11:05:48,299 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 28 [2019-11-21 11:05:48,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:05:48,300 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2019-11-21 11:05:48,300 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-21 11:05:48,300 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2019-11-21 11:05:48,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-21 11:05:48,301 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:05:48,301 INFO L410 BasicCegarLoop]: trace histogram [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 11:05:48,509 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:05:48,511 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 11:05:48,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:05:48,511 INFO L82 PathProgramCache]: Analyzing trace with hash 759054628, now seen corresponding path program 1 times [2019-11-21 11:05:48,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:05:48,512 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [979014880] [2019-11-21 11:05:48,512 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 11:05:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:05:48,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-21 11:05:48,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:05:48,842 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 11:05:48,843 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 11:05:48,844 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:05:48,869 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-21 11:05:48,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:05:48,870 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 11:05:48,871 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-21 11:05:48,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:05:48,888 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 5 treesize of output 3 [2019-11-21 11:05:48,888 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:05:48,889 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:05:48,890 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:05:48,890 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2019-11-21 11:05:48,997 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:05:49,012 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 16 treesize of output 13 [2019-11-21 11:05:49,013 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:05:49,028 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:05:49,031 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 12 treesize of output 9 [2019-11-21 11:05:49,032 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:05:49,049 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:05:49,050 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-11-21 11:05:49,050 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:16 [2019-11-21 11:05:51,180 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:05:51,181 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-21 11:05:51,182 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:05:51,202 INFO L567 ElimStorePlain]: treesize reduction 18, result has 45.5 percent of original size [2019-11-21 11:05:51,203 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 11:05:51,203 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2019-11-21 11:05:51,261 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 11:05:51,261 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:05:57,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:05:57,590 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:05:57,591 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:05:57,595 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-21 11:05:57,825 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:05:57,826 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 11:05:57,834 INFO L168 Benchmark]: Toolchain (without parser) took 120317.22 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 261.1 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -152.8 MB). Peak memory consumption was 108.3 MB. Max. memory is 11.5 GB. [2019-11-21 11:05:57,841 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:05:57,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 970.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 957.7 MB in the beginning and 1.0 GB in the end (delta: -76.3 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2019-11-21 11:05:57,842 INFO L168 Benchmark]: Boogie Preprocessor took 124.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-21 11:05:57,843 INFO L168 Benchmark]: RCFGBuilder took 1724.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 916.9 MB in the end (delta: 110.1 MB). Peak memory consumption was 110.1 MB. Max. memory is 11.5 GB. [2019-11-21 11:05:57,843 INFO L168 Benchmark]: TraceAbstraction took 117493.35 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 179.3 MB). Free memory was 916.9 MB in the beginning and 1.1 GB in the end (delta: -193.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:05:57,850 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 970.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 957.7 MB in the beginning and 1.0 GB in the end (delta: -76.3 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 124.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1724.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 916.9 MB in the end (delta: 110.1 MB). Peak memory consumption was 110.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 117493.35 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 179.3 MB). Free memory was 916.9 MB in the beginning and 1.1 GB in the end (delta: -193.6 MB). There was no memory consumed. 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...