./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 32bit -------------------------------------------------------------------------------- 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_test17_3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 13cc57c6782c611a2cc29fdcbf3c29309805806e --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 13:27:29,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 13:27:29,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 13:27:29,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 13:27:29,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 13:27:29,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 13:27:29,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 13:27:29,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 13:27:29,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 13:27:29,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 13:27:29,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 13:27:29,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 13:27:29,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 13:27:29,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 13:27:29,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 13:27:29,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 13:27:29,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 13:27:29,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 13:27:29,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 13:27:29,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 13:27:29,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 13:27:29,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 13:27:29,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 13:27:29,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 13:27:29,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 13:27:29,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 13:27:29,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 13:27:29,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 13:27:29,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 13:27:29,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 13:27:29,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 13:27:29,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 13:27:29,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 13:27:29,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 13:27:29,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 13:27:29,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 13:27:29,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 13:27:29,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 13:27:29,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 13:27:29,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 13:27:29,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 13:27:29,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 13:27:29,556 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 13:27:29,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 13:27:29,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 13:27:29,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 13:27:29,558 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 13:27:29,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 13:27:29,558 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 13:27:29,558 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 13:27:29,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 13:27:29,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 13:27:29,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 13:27:29,559 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 13:27:29,559 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 13:27:29,560 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 13:27:29,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 13:27:29,560 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 13:27:29,560 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 13:27:29,560 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 13:27:29,561 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 13:27:29,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 13:27:29,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 13:27:29,561 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 13:27:29,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 13:27:29,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 13:27:29,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 13:27:29,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 13:27:29,562 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 13:27:29,562 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 13:27:29,563 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 13:27:29,563 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13cc57c6782c611a2cc29fdcbf3c29309805806e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 13:27:29,879 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 13:27:29,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 13:27:29,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 13:27:29,897 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 13:27:29,898 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 13:27:29,899 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i [2019-11-21 13:27:29,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c677be088/09c41902bffe470c99c223b2fa1a1b5d/FLAG30c570a92 [2019-11-21 13:27:30,597 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 13:27:30,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i [2019-11-21 13:27:30,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c677be088/09c41902bffe470c99c223b2fa1a1b5d/FLAG30c570a92 [2019-11-21 13:27:30,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c677be088/09c41902bffe470c99c223b2fa1a1b5d [2019-11-21 13:27:30,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 13:27:30,813 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 13:27:30,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 13:27:30,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 13:27:30,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 13:27:30,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:27:30" (1/1) ... [2019-11-21 13:27:30,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f67ea3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:30, skipping insertion in model container [2019-11-21 13:27:30,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:27:30" (1/1) ... [2019-11-21 13:27:30,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 13:27:30,887 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 13:27:31,322 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 13:27:31,323 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 13:27:31,323 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:27:31,335 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 13:27:31,335 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 13:27:31,335 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:27:31,338 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 13:27:31,338 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 13:27:31,338 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:27:31,340 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 13:27:31,341 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 13:27:31,341 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:27:31,364 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 13:27:31,364 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 13:27:31,365 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:27:31,374 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 13:27:31,375 INFO L969 CHandler]: at location: C: (struct A17 *)ldv_malloc(sizeof(struct A17)) [766] [2019-11-21 13:27:31,375 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:27:31,380 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 13:27:31,380 INFO L969 CHandler]: at location: C: (struct A17 **)ldv_malloc(sizeof(struct A17*)*len) [781] [2019-11-21 13:27:31,380 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:27:31,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 13:27:31,406 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 13:27:31,429 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 13:27:31,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 13:27:31,498 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 13:27:31,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 13:27:31,663 INFO L205 MainTranslator]: Completed translation [2019-11-21 13:27:31,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:31 WrapperNode [2019-11-21 13:27:31,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 13:27:31,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 13:27:31,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 13:27:31,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 13:27:31,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:31" (1/1) ... [2019-11-21 13:27:31,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:31" (1/1) ... [2019-11-21 13:27:31,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:31" (1/1) ... [2019-11-21 13:27:31,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:31" (1/1) ... [2019-11-21 13:27:31,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:31" (1/1) ... [2019-11-21 13:27:31,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:31" (1/1) ... [2019-11-21 13:27:31,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:31" (1/1) ... [2019-11-21 13:27:31,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 13:27:31,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 13:27:31,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 13:27:31,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 13:27:31,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:31" (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 13:27:31,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 13:27:31,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 13:27:31,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 13:27:31,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 13:27:31,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 13:27:31,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 13:27:31,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 13:27:31,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 13:27:31,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 13:27:31,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 13:27:31,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 13:27:31,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 13:27:31,898 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 13:27:31,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 13:27:31,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 13:27:31,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 13:27:31,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 13:27:31,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 13:27:31,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 13:27:31,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 13:27:31,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 13:27:31,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 13:27:31,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 13:27:31,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 13:27:31,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 13:27:31,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 13:27:31,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 13:27:31,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 13:27:31,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 13:27:31,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 13:27:31,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 13:27:31,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 13:27:31,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 13:27:31,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 13:27:31,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 13:27:31,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 13:27:31,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 13:27:31,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 13:27:31,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 13:27:31,904 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 13:27:31,904 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 13:27:31,904 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-21 13:27:31,905 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 13:27:31,906 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 13:27:31,906 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 13:27:31,906 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 13:27:31,906 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 13:27:31,907 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 13:27:31,908 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 13:27:31,909 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 13:27:31,909 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 13:27:31,909 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 13:27:31,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 13:27:31,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 13:27:31,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 13:27:31,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 13:27:31,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 13:27:31,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 13:27:31,911 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 13:27:31,911 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 13:27:31,911 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 13:27:31,911 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 13:27:31,912 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 13:27:31,912 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 13:27:31,912 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 13:27:31,912 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 13:27:31,912 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 13:27:31,912 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 13:27:31,912 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 13:27:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 13:27:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 13:27:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 13:27:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 13:27:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 13:27:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 13:27:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 13:27:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 13:27:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 13:27:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 13:27:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 13:27:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 13:27:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 13:27:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 13:27:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 13:27:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 13:27:31,915 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 13:27:31,915 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 13:27:31,915 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 13:27:31,915 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 13:27:31,915 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 13:27:31,915 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 13:27:31,916 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 13:27:31,916 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 13:27:31,916 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 13:27:31,916 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 13:27:31,916 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 13:27:31,917 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 13:27:31,917 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 13:27:31,917 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 13:27:31,917 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 13:27:31,918 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 13:27:31,918 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 13:27:31,918 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 13:27:31,918 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 13:27:31,918 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 13:27:31,919 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 13:27:31,922 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 13:27:31,922 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 13:27:31,922 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 13:27:31,923 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 13:27:31,923 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 13:27:31,923 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 13:27:31,923 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 13:27:31,924 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 13:27:31,924 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 13:27:31,925 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 13:27:31,925 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 13:27:31,925 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 13:27:31,925 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 13:27:31,932 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 13:27:31,932 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 13:27:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 13:27:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 13:27:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 13:27:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 13:27:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 13:27:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 13:27:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 13:27:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 13:27:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 13:27:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 13:27:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 13:27:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 13:27:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 13:27:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 13:27:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 13:27:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 13:27:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 13:27:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 13:27:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 13:27:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 13:27:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 13:27:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 13:27:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 13:27:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 13:27:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 13:27:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 13:27:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 13:27:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 13:27:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 13:27:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 13:27:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 13:27:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 13:27:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 13:27:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 13:27:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 13:27:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 13:27:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 13:27:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 13:27:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 13:27:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 13:27:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 13:27:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 13:27:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 13:27:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 13:27:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 13:27:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 13:27:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 13:27:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 13:27:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 13:27:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 13:27:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 13:27:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 13:27:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 13:27:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 13:27:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 13:27:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 13:27:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 13:27:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 13:27:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 13:27:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 13:27:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 13:27:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 13:27:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 13:27:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 13:27:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 13:27:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 13:27:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 13:27:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 13:27:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 13:27:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 13:27:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 13:27:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 13:27:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 13:27:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 13:27:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 13:27:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 13:27:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 13:27:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 13:27:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 13:27:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 13:27:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 13:27:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-21 13:27:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 13:27:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 13:27:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 13:27:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 13:27:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 13:27:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 13:27:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 13:27:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 13:27:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 13:27:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 13:27:32,601 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 13:27:33,001 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 13:27:33,493 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 13:27:33,493 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-21 13:27:33,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:27:33 BoogieIcfgContainer [2019-11-21 13:27:33,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 13:27:33,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 13:27:33,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 13:27:33,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 13:27:33,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:27:30" (1/3) ... [2019-11-21 13:27:33,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c484188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:27:33, skipping insertion in model container [2019-11-21 13:27:33,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:31" (2/3) ... [2019-11-21 13:27:33,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c484188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:27:33, skipping insertion in model container [2019-11-21 13:27:33,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:27:33" (3/3) ... [2019-11-21 13:27:33,504 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_3.i [2019-11-21 13:27:33,514 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 13:27:33,522 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 85 error locations. [2019-11-21 13:27:33,532 INFO L249 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2019-11-21 13:27:33,550 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 13:27:33,550 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 13:27:33,550 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 13:27:33,550 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 13:27:33,550 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 13:27:33,551 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 13:27:33,551 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 13:27:33,551 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 13:27:33,572 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2019-11-21 13:27:33,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 13:27:33,582 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:27:33,583 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:27:33,584 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:27:33,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:27:33,590 INFO L82 PathProgramCache]: Analyzing trace with hash 2012889847, now seen corresponding path program 1 times [2019-11-21 13:27:33,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:27:33,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [456562718] [2019-11-21 13:27:33,603 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 13:27:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:27:33,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 13:27:33,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:27:34,003 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 13:27:34,004 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:27:34,013 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:27:34,013 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:27:34,014 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 13:27:34,051 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 13:27:34,051 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:27:34,109 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 13:27:34,110 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [456562718] [2019-11-21 13:27:34,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:27:34,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 13:27:34,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218609219] [2019-11-21 13:27:34,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 13:27:34,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:27:34,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 13:27:34,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:27:34,138 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 5 states. [2019-11-21 13:27:34,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:27:34,359 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2019-11-21 13:27:34,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 13:27:34,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 13:27:34,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:27:34,373 INFO L225 Difference]: With dead ends: 72 [2019-11-21 13:27:34,374 INFO L226 Difference]: Without dead ends: 69 [2019-11-21 13:27:34,376 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 1 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 13:27:34,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-21 13:27:34,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2019-11-21 13:27:34,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-21 13:27:34,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2019-11-21 13:27:34,458 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 16 [2019-11-21 13:27:34,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:27:34,459 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2019-11-21 13:27:34,459 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 13:27:34,459 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2019-11-21 13:27:34,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 13:27:34,461 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:27:34,461 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:27:34,666 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:27:34,668 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:27:34,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:27:34,669 INFO L82 PathProgramCache]: Analyzing trace with hash 2012889848, now seen corresponding path program 1 times [2019-11-21 13:27:34,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:27:34,669 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [885753716] [2019-11-21 13:27:34,670 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 13:27:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:27:34,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 13:27:34,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:27:34,989 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 13:27:34,989 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:27:34,996 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:27:34,996 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:27:34,997 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 13:27:35,089 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 13:27:35,091 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:27:35,960 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 13:27:35,961 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [885753716] [2019-11-21 13:27:35,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:27:35,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-21 13:27:35,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464818853] [2019-11-21 13:27:35,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 13:27:35,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:27:35,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 13:27:35,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-21 13:27:35,996 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand 14 states. [2019-11-21 13:27:37,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:27:37,126 INFO L93 Difference]: Finished difference Result 78 states and 92 transitions. [2019-11-21 13:27:37,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 13:27:37,127 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-21 13:27:37,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:27:37,129 INFO L225 Difference]: With dead ends: 78 [2019-11-21 13:27:37,129 INFO L226 Difference]: Without dead ends: 78 [2019-11-21 13:27:37,130 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2019-11-21 13:27:37,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-11-21 13:27:37,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 70. [2019-11-21 13:27:37,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-11-21 13:27:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2019-11-21 13:27:37,148 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 16 [2019-11-21 13:27:37,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:27:37,149 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2019-11-21 13:27:37,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 13:27:37,149 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2019-11-21 13:27:37,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 13:27:37,151 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:27:37,151 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:27:37,363 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:27:37,363 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:27:37,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:27:37,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1394573768, now seen corresponding path program 1 times [2019-11-21 13:27:37,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:27:37,365 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [225182513] [2019-11-21 13:27:37,366 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 13:27:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:27:37,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 13:27:37,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:27:37,623 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 13:27:37,623 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:27:37,664 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 13:27:37,665 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [225182513] [2019-11-21 13:27:37,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:27:37,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 13:27:37,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854158063] [2019-11-21 13:27:37,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 13:27:37,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:27:37,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 13:27:37,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:27:37,667 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand 5 states. [2019-11-21 13:27:37,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:27:37,715 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2019-11-21 13:27:37,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 13:27:37,716 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 13:27:37,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:27:37,717 INFO L225 Difference]: With dead ends: 69 [2019-11-21 13:27:37,717 INFO L226 Difference]: Without dead ends: 69 [2019-11-21 13:27:37,717 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:27:37,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-21 13:27:37,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2019-11-21 13:27:37,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-11-21 13:27:37,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2019-11-21 13:27:37,727 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 16 [2019-11-21 13:27:37,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:27:37,727 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2019-11-21 13:27:37,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 13:27:37,727 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2019-11-21 13:27:37,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 13:27:37,728 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:27:37,728 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:27:37,930 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:27:37,931 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:27:37,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:27:37,932 INFO L82 PathProgramCache]: Analyzing trace with hash -2024128132, now seen corresponding path program 1 times [2019-11-21 13:27:37,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:27:37,933 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1174330821] [2019-11-21 13:27:37,934 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 13:27:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:27:38,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 13:27:38,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:27:38,161 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 13:27:38,162 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:27:38,240 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 13:27:38,240 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1174330821] [2019-11-21 13:27:38,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:27:38,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 13:27:38,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508427715] [2019-11-21 13:27:38,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 13:27:38,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:27:38,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 13:27:38,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:27:38,243 INFO L87 Difference]: Start difference. First operand 67 states and 75 transitions. Second operand 5 states. [2019-11-21 13:27:38,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:27:38,304 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2019-11-21 13:27:38,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 13:27:38,305 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 13:27:38,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:27:38,306 INFO L225 Difference]: With dead ends: 69 [2019-11-21 13:27:38,307 INFO L226 Difference]: Without dead ends: 69 [2019-11-21 13:27:38,309 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:27:38,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-21 13:27:38,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2019-11-21 13:27:38,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-11-21 13:27:38,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2019-11-21 13:27:38,326 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 17 [2019-11-21 13:27:38,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:27:38,327 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2019-11-21 13:27:38,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 13:27:38,327 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2019-11-21 13:27:38,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 13:27:38,328 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:27:38,328 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:27:38,531 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:27:38,539 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:27:38,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:27:38,539 INFO L82 PathProgramCache]: Analyzing trace with hash -281317797, now seen corresponding path program 1 times [2019-11-21 13:27:38,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:27:38,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [422036257] [2019-11-21 13:27:38,540 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 13:27:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:27:38,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 13:27:38,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:27:38,765 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 13:27:38,765 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:27:38,816 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 13:27:38,817 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [422036257] [2019-11-21 13:27:38,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:27:38,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 13:27:38,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277999119] [2019-11-21 13:27:38,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 13:27:38,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:27:38,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 13:27:38,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 13:27:38,818 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand 3 states. [2019-11-21 13:27:38,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:27:38,930 INFO L93 Difference]: Finished difference Result 93 states and 104 transitions. [2019-11-21 13:27:38,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 13:27:38,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-21 13:27:38,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:27:38,933 INFO L225 Difference]: With dead ends: 93 [2019-11-21 13:27:38,933 INFO L226 Difference]: Without dead ends: 88 [2019-11-21 13:27:38,933 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 13:27:38,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-11-21 13:27:38,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 65. [2019-11-21 13:27:38,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-21 13:27:38,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2019-11-21 13:27:38,940 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 17 [2019-11-21 13:27:38,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:27:38,940 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2019-11-21 13:27:38,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 13:27:38,940 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2019-11-21 13:27:38,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 13:27:38,941 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:27:38,941 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:27:39,144 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:27:39,147 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:27:39,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:27:39,149 INFO L82 PathProgramCache]: Analyzing trace with hash 189970936, now seen corresponding path program 1 times [2019-11-21 13:27:39,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:27:39,150 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1433936991] [2019-11-21 13:27:39,150 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 13:27:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:27:39,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-21 13:27:39,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:27:39,449 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 13:27:39,450 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:27:39,457 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:27:39,458 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:27:39,458 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 13:27:39,607 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:27:39,607 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:27:40,504 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:27:40,981 WARN L192 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-21 13:27:41,327 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:27:41,327 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1433936991] [2019-11-21 13:27:41,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:27:41,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2019-11-21 13:27:41,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994055163] [2019-11-21 13:27:41,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-21 13:27:41,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:27:41,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-21 13:27:41,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-21 13:27:41,329 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand 19 states. [2019-11-21 13:27:42,989 WARN L192 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 13:27:43,443 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 13:27:44,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:27:44,192 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2019-11-21 13:27:44,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-21 13:27:44,193 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2019-11-21 13:27:44,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:27:44,194 INFO L225 Difference]: With dead ends: 82 [2019-11-21 13:27:44,195 INFO L226 Difference]: Without dead ends: 82 [2019-11-21 13:27:44,195 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2019-11-21 13:27:44,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-11-21 13:27:44,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 77. [2019-11-21 13:27:44,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-21 13:27:44,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2019-11-21 13:27:44,202 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 22 [2019-11-21 13:27:44,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:27:44,203 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2019-11-21 13:27:44,203 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-21 13:27:44,203 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2019-11-21 13:27:44,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-21 13:27:44,204 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:27:44,204 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:27:44,406 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:27:44,412 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:27:44,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:27:44,413 INFO L82 PathProgramCache]: Analyzing trace with hash 676551503, now seen corresponding path program 1 times [2019-11-21 13:27:44,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:27:44,414 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1254171811] [2019-11-21 13:27:44,414 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 13:27:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:27:44,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 13:27:44,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:27:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-21 13:27:44,679 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:27:44,719 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-21 13:27:44,719 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1254171811] [2019-11-21 13:27:44,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:27:44,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 13:27:44,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459896882] [2019-11-21 13:27:44,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 13:27:44,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:27:44,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 13:27:44,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:27:44,721 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand 5 states. [2019-11-21 13:27:44,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:27:44,752 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2019-11-21 13:27:44,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 13:27:44,754 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-21 13:27:44,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:27:44,755 INFO L225 Difference]: With dead ends: 76 [2019-11-21 13:27:44,756 INFO L226 Difference]: Without dead ends: 76 [2019-11-21 13:27:44,757 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 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 13:27:44,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-11-21 13:27:44,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-11-21 13:27:44,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-21 13:27:44,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2019-11-21 13:27:44,767 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 32 [2019-11-21 13:27:44,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:27:44,767 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2019-11-21 13:27:44,767 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 13:27:44,768 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2019-11-21 13:27:44,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-21 13:27:44,769 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:27:44,769 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:27:44,972 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:27:44,974 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:27:44,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:27:44,975 INFO L82 PathProgramCache]: Analyzing trace with hash -501739445, now seen corresponding path program 1 times [2019-11-21 13:27:44,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:27:44,976 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1587674370] [2019-11-21 13:27:44,976 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 13:27:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:27:45,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 13:27:45,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:27:45,338 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:27:45,338 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:27:45,484 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:27:45,485 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1587674370] [2019-11-21 13:27:45,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:27:45,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-21 13:27:45,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98361778] [2019-11-21 13:27:45,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-21 13:27:45,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:27:45,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-21 13:27:45,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-21 13:27:45,487 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 12 states. [2019-11-21 13:27:45,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:27:45,852 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2019-11-21 13:27:45,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 13:27:45,853 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2019-11-21 13:27:45,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:27:45,854 INFO L225 Difference]: With dead ends: 82 [2019-11-21 13:27:45,854 INFO L226 Difference]: Without dead ends: 82 [2019-11-21 13:27:45,854 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-11-21 13:27:45,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-11-21 13:27:45,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2019-11-21 13:27:45,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-11-21 13:27:45,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions. [2019-11-21 13:27:45,864 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 33 [2019-11-21 13:27:45,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:27:45,865 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 87 transitions. [2019-11-21 13:27:45,865 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-21 13:27:45,865 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2019-11-21 13:27:45,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-21 13:27:45,866 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:27:45,866 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:27:46,069 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:27:46,070 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:27:46,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:27:46,071 INFO L82 PathProgramCache]: Analyzing trace with hash -107747336, now seen corresponding path program 2 times [2019-11-21 13:27:46,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:27:46,072 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [603043541] [2019-11-21 13:27:46,072 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 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 13:27:46,455 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-21 13:27:46,455 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 13:27:46,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-21 13:27:46,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:27:46,484 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 13:27:46,484 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:27:46,490 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:27:46,490 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:27:46,490 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 13:27:46,714 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:27:46,715 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:27:48,928 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:27:48,928 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [603043541] [2019-11-21 13:27:48,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:27:48,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2019-11-21 13:27:48,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060313831] [2019-11-21 13:27:48,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-21 13:27:48,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:27:48,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-21 13:27:48,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2019-11-21 13:27:48,930 INFO L87 Difference]: Start difference. First operand 81 states and 87 transitions. Second operand 26 states. [2019-11-21 13:27:52,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:27:52,023 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2019-11-21 13:27:52,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-21 13:27:52,024 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 34 [2019-11-21 13:27:52,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:27:52,025 INFO L225 Difference]: With dead ends: 92 [2019-11-21 13:27:52,025 INFO L226 Difference]: Without dead ends: 92 [2019-11-21 13:27:52,027 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=291, Invalid=1349, Unknown=0, NotChecked=0, Total=1640 [2019-11-21 13:27:52,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-21 13:27:52,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2019-11-21 13:27:52,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-21 13:27:52,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2019-11-21 13:27:52,033 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 34 [2019-11-21 13:27:52,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:27:52,033 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2019-11-21 13:27:52,034 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-21 13:27:52,034 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2019-11-21 13:27:52,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-21 13:27:52,035 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:27:52,036 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:27:52,239 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:27:52,240 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:27:52,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:27:52,241 INFO L82 PathProgramCache]: Analyzing trace with hash 427824632, now seen corresponding path program 3 times [2019-11-21 13:27:52,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:27:52,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1821957760] [2019-11-21 13:27:52,243 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 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 13:27:52,834 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-21 13:27:52,834 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 13:27:52,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-21 13:27:52,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:27:52,886 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 13:27:52,886 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:27:52,890 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:27:52,890 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:27:52,891 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 13:27:53,522 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 17 treesize of output 13 [2019-11-21 13:27:53,523 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:27:53,538 INFO L567 ElimStorePlain]: treesize reduction 23, result has 28.1 percent of original size [2019-11-21 13:27:53,538 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 13:27:53,538 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:9 [2019-11-21 13:27:53,587 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:27:53,588 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:27:54,556 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 27 [2019-11-21 13:27:56,032 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2019-11-21 13:27:56,850 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2019-11-21 13:27:59,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:28:00,066 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 18 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:28:00,067 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1821957760] [2019-11-21 13:28:00,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:28:00,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25] total 42 [2019-11-21 13:28:00,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229469291] [2019-11-21 13:28:00,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-11-21 13:28:00,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:28:00,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-11-21 13:28:00,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=1438, Unknown=0, NotChecked=0, Total=1722 [2019-11-21 13:28:00,070 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand 42 states. [2019-11-21 13:28:03,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:28:03,329 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2019-11-21 13:28:03,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-21 13:28:03,331 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 46 [2019-11-21 13:28:03,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:28:03,332 INFO L225 Difference]: With dead ends: 88 [2019-11-21 13:28:03,333 INFO L226 Difference]: Without dead ends: 88 [2019-11-21 13:28:03,334 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 44 SyntacticMatches, 7 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=328, Invalid=1742, Unknown=0, NotChecked=0, Total=2070 [2019-11-21 13:28:03,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-11-21 13:28:03,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2019-11-21 13:28:03,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-21 13:28:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2019-11-21 13:28:03,339 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 46 [2019-11-21 13:28:03,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:28:03,340 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2019-11-21 13:28:03,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-11-21 13:28:03,340 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2019-11-21 13:28:03,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-11-21 13:28:03,342 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:28:03,342 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:28:03,546 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:28:03,547 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:28:03,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:28:03,548 INFO L82 PathProgramCache]: Analyzing trace with hash 2062874979, now seen corresponding path program 2 times [2019-11-21 13:28:03,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:28:03,549 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [727623708] [2019-11-21 13:28:03,550 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:28:03,803 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 13:28:03,803 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 13:28:03,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 13:28:03,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:28:03,842 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 13:28:03,842 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:28:03,922 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 13:28:03,922 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [727623708] [2019-11-21 13:28:03,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:28:03,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-21 13:28:03,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788448883] [2019-11-21 13:28:03,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 13:28:03,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:28:03,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 13:28:03,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-21 13:28:03,925 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand 7 states. [2019-11-21 13:28:04,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:28:04,066 INFO L93 Difference]: Finished difference Result 117 states and 125 transitions. [2019-11-21 13:28:04,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 13:28:04,067 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 54 [2019-11-21 13:28:04,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:28:04,069 INFO L225 Difference]: With dead ends: 117 [2019-11-21 13:28:04,069 INFO L226 Difference]: Without dead ends: 114 [2019-11-21 13:28:04,069 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-21 13:28:04,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-11-21 13:28:04,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 87. [2019-11-21 13:28:04,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-21 13:28:04,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2019-11-21 13:28:04,077 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 54 [2019-11-21 13:28:04,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:28:04,077 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2019-11-21 13:28:04,077 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 13:28:04,077 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2019-11-21 13:28:04,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 13:28:04,079 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:28:04,079 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:28:04,280 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:28:04,281 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:28:04,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:28:04,281 INFO L82 PathProgramCache]: Analyzing trace with hash -465490005, now seen corresponding path program 1 times [2019-11-21 13:28:04,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:28:04,282 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1180434043] [2019-11-21 13:28:04,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:28:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:28:04,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 13:28:04,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:28:04,733 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 13:28:04,733 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:28:04,735 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:28:04,736 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:28:04,736 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 13:28:04,840 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:28:04,841 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 13:28:04,841 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:28:04,859 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 13:28:04,859 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 13:28:04,859 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 13:28:04,890 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 13:28:04,890 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:28:07,162 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-21 13:28:07,162 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1180434043] [2019-11-21 13:28:07,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 13:28:07,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-21 13:28:07,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819326219] [2019-11-21 13:28:07,163 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 13:28:07,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:28:07,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 13:28:07,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-11-21 13:28:07,166 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 8 states. [2019-11-21 13:28:22,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:28:22,718 INFO L93 Difference]: Finished difference Result 148 states and 162 transitions. [2019-11-21 13:28:22,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 13:28:22,719 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-21 13:28:22,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:28:22,721 INFO L225 Difference]: With dead ends: 148 [2019-11-21 13:28:22,721 INFO L226 Difference]: Without dead ends: 148 [2019-11-21 13:28:22,721 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 96 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=95, Invalid=410, Unknown=1, NotChecked=0, Total=506 [2019-11-21 13:28:22,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-11-21 13:28:22,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 93. [2019-11-21 13:28:22,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-21 13:28:22,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 101 transitions. [2019-11-21 13:28:22,731 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 101 transitions. Word has length 56 [2019-11-21 13:28:22,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:28:22,733 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 101 transitions. [2019-11-21 13:28:22,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 13:28:22,734 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 101 transitions. [2019-11-21 13:28:22,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 13:28:22,738 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:28:22,741 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:28:22,944 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:28:22,945 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:28:22,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:28:22,946 INFO L82 PathProgramCache]: Analyzing trace with hash -465490004, now seen corresponding path program 1 times [2019-11-21 13:28:22,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:28:22,947 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1770075352] [2019-11-21 13:28:22,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:28:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:28:23,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-21 13:28:23,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:28:23,475 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 13:28:23,476 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:28:23,485 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:28:23,488 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 13:28:23,488 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:28:23,498 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:28:23,498 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:28:23,498 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 13:28:25,674 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 13:28:25,679 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 13:28:25,679 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:28:25,696 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:28:25,713 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:28:25,713 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 13 treesize of output 17 [2019-11-21 13:28:25,714 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:28:25,726 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:28:25,727 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 13:28:25,727 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:12 [2019-11-21 13:28:25,767 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 13:28:25,767 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:28:25,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:28:28,195 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:28:28,195 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:28:28,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:28:28,197 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:28:28,198 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:28:28,198 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:28:28,200 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:28:36,490 WARN L192 SmtUtils]: Spent 3.58 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 13:28:36,495 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:28:39,059 WARN L192 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2019-11-21 13:28:46,124 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_260|], 2=[|v_#length_226|]} [2019-11-21 13:28:46,135 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 13:28:46,135 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:28:46,145 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:28:46,146 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 13:28:46,147 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:28:46,156 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:28:46,157 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:28:46,157 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-21 13:28:46,835 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 13:28:46,855 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 13:28:46,855 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:28:46,885 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:28:46,889 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 13:28:46,890 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:28:46,912 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:28:46,913 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 13:28:46,913 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-21 13:28:47,119 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 13:28:47,120 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1770075352] [2019-11-21 13:28:47,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:28:47,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-21 13:28:47,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932461934] [2019-11-21 13:28:47,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-21 13:28:47,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:28:47,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-21 13:28:47,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=404, Unknown=6, NotChecked=0, Total=462 [2019-11-21 13:28:47,125 INFO L87 Difference]: Start difference. First operand 93 states and 101 transitions. Second operand 22 states. [2019-11-21 13:29:48,289 WARN L192 SmtUtils]: Spent 20.31 s on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-11-21 13:30:05,525 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 29 [2019-11-21 13:30:32,451 WARN L192 SmtUtils]: Spent 8.22 s on a formula simplification. DAG size of input: 58 DAG size of output: 29 [2019-11-21 13:31:18,229 WARN L192 SmtUtils]: Spent 16.29 s on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-11-21 13:31:29,727 WARN L192 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-11-21 13:31:36,158 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv1 1) (select |c_#valid| c_alloc_17_~array.base)) (exists ((|v_ldv_malloc_#t~malloc12.base_49| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_49|))) (= (_ bv40 32) (select |c_#length| c_alloc_17_~array.base)) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_56 (_ BitVec 32)) (v_prenex_11 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_11)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_11 v_ldv_malloc_~size_56) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (_ bv40 32) (select |c_#length| |c_alloc_17_#in~array.base|)) (= |c_#valid| |c_old(#valid)|) (= |c_old(#length)| |c_#length|) (= c_alloc_17_~array.offset (_ bv0 32)) (= (_ bv0 32) c_alloc_17_~i~0) (= (_ bv1 1) (select |c_#valid| |c_alloc_17_#in~array.base|)) (= |c_alloc_17_#in~array.offset| (_ bv0 32))) is different from false [2019-11-21 13:32:07,699 WARN L192 SmtUtils]: Spent 12.21 s on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-11-21 13:32:43,950 WARN L192 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 53 DAG size of output: 25 [2019-11-21 13:32:49,591 WARN L192 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 76 DAG size of output: 45 [2019-11-21 13:32:50,051 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-21 13:33:27,003 WARN L192 SmtUtils]: Spent 6.13 s on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2019-11-21 13:33:43,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:33:43,838 INFO L93 Difference]: Finished difference Result 208 states and 234 transitions. [2019-11-21 13:33:43,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-11-21 13:33:43,839 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-21 13:33:43,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:33:43,841 INFO L225 Difference]: With dead ends: 208 [2019-11-21 13:33:43,841 INFO L226 Difference]: Without dead ends: 208 [2019-11-21 13:33:43,842 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 226.4s TimeCoverageRelationStatistics Valid=201, Invalid=1306, Unknown=57, NotChecked=76, Total=1640 [2019-11-21 13:33:43,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2019-11-21 13:33:43,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 124. [2019-11-21 13:33:43,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-11-21 13:33:43,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 149 transitions. [2019-11-21 13:33:43,849 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 149 transitions. Word has length 56 [2019-11-21 13:33:43,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:33:43,849 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 149 transitions. [2019-11-21 13:33:43,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-21 13:33:43,850 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 149 transitions. [2019-11-21 13:33:43,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 13:33:43,851 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:33:43,851 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:33:44,052 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:33:44,053 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:33:44,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:33:44,054 INFO L82 PathProgramCache]: Analyzing trace with hash -659340552, now seen corresponding path program 1 times [2019-11-21 13:33:44,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:33:44,055 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [828526239] [2019-11-21 13:33:44,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:33:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:33:44,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 13:33:44,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:33:44,368 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 13:33:44,368 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:33:44,418 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 13:33:44,419 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [828526239] [2019-11-21 13:33:44,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:33:44,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 13:33:44,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007468126] [2019-11-21 13:33:44,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 13:33:44,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:33:44,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 13:33:44,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:33:44,420 INFO L87 Difference]: Start difference. First operand 124 states and 149 transitions. Second operand 5 states. [2019-11-21 13:33:44,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:33:44,482 INFO L93 Difference]: Finished difference Result 132 states and 157 transitions. [2019-11-21 13:33:44,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 13:33:44,484 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-21 13:33:44,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:33:44,486 INFO L225 Difference]: With dead ends: 132 [2019-11-21 13:33:44,486 INFO L226 Difference]: Without dead ends: 132 [2019-11-21 13:33:44,486 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 13:33:44,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-21 13:33:44,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 123. [2019-11-21 13:33:44,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-11-21 13:33:44,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 146 transitions. [2019-11-21 13:33:44,496 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 146 transitions. Word has length 58 [2019-11-21 13:33:44,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:33:44,497 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 146 transitions. [2019-11-21 13:33:44,497 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 13:33:44,497 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 146 transitions. [2019-11-21 13:33:44,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 13:33:44,501 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:33:44,502 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:33:44,709 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:33:44,710 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:33:44,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:33:44,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1083469783, now seen corresponding path program 1 times [2019-11-21 13:33:44,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:33:44,711 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1322416808] [2019-11-21 13:33:44,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:33:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:33:45,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 13:33:45,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:33:45,151 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 13:33:45,152 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:33:45,201 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 13:33:45,202 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1322416808] [2019-11-21 13:33:45,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:33:45,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 13:33:45,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763460767] [2019-11-21 13:33:45,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 13:33:45,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:33:45,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 13:33:45,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 13:33:45,203 INFO L87 Difference]: Start difference. First operand 123 states and 146 transitions. Second operand 6 states. [2019-11-21 13:33:45,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:33:45,330 INFO L93 Difference]: Finished difference Result 136 states and 159 transitions. [2019-11-21 13:33:45,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 13:33:45,331 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-21 13:33:45,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:33:45,333 INFO L225 Difference]: With dead ends: 136 [2019-11-21 13:33:45,333 INFO L226 Difference]: Without dead ends: 136 [2019-11-21 13:33:45,334 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-21 13:33:45,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-11-21 13:33:45,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 125. [2019-11-21 13:33:45,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-21 13:33:45,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 148 transitions. [2019-11-21 13:33:45,339 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 148 transitions. Word has length 58 [2019-11-21 13:33:45,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:33:45,340 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 148 transitions. [2019-11-21 13:33:45,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 13:33:45,340 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 148 transitions. [2019-11-21 13:33:45,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-21 13:33:45,341 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:33:45,341 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:33:45,545 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:33:45,546 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:33:45,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:33:45,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1826501826, now seen corresponding path program 1 times [2019-11-21 13:33:45,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:33:45,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1670151766] [2019-11-21 13:33:45,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:33:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:33:45,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 13:33:45,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:33:46,038 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 13:33:46,038 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:33:46,129 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 13:33:46,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1670151766] [2019-11-21 13:33:46,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:33:46,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-21 13:33:46,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026906320] [2019-11-21 13:33:46,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 13:33:46,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:33:46,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 13:33:46,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 13:33:46,131 INFO L87 Difference]: Start difference. First operand 125 states and 148 transitions. Second operand 9 states. [2019-11-21 13:33:46,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:33:46,350 INFO L93 Difference]: Finished difference Result 124 states and 146 transitions. [2019-11-21 13:33:46,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 13:33:46,351 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2019-11-21 13:33:46,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:33:46,352 INFO L225 Difference]: With dead ends: 124 [2019-11-21 13:33:46,352 INFO L226 Difference]: Without dead ends: 124 [2019-11-21 13:33:46,353 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 13:33:46,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-11-21 13:33:46,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-11-21 13:33:46,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-11-21 13:33:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 146 transitions. [2019-11-21 13:33:46,359 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 146 transitions. Word has length 63 [2019-11-21 13:33:46,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:33:46,359 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 146 transitions. [2019-11-21 13:33:46,359 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 13:33:46,359 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 146 transitions. [2019-11-21 13:33:46,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-21 13:33:46,360 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:33:46,360 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:33:46,565 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:33:46,566 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:33:46,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:33:46,566 INFO L82 PathProgramCache]: Analyzing trace with hash -2039074825, now seen corresponding path program 1 times [2019-11-21 13:33:46,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:33:46,567 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [263722296] [2019-11-21 13:33:46,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:33:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:33:46,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 13:33:46,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:33:47,017 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 13:33:47,017 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:33:47,132 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 13:33:47,132 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [263722296] [2019-11-21 13:33:47,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:33:47,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-11-21 13:33:47,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387689274] [2019-11-21 13:33:47,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 13:33:47,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:33:47,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 13:33:47,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 13:33:47,133 INFO L87 Difference]: Start difference. First operand 124 states and 146 transitions. Second operand 9 states. [2019-11-21 13:33:47,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:33:47,312 INFO L93 Difference]: Finished difference Result 176 states and 204 transitions. [2019-11-21 13:33:47,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 13:33:47,314 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-11-21 13:33:47,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:33:47,316 INFO L225 Difference]: With dead ends: 176 [2019-11-21 13:33:47,316 INFO L226 Difference]: Without dead ends: 170 [2019-11-21 13:33:47,316 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-21 13:33:47,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2019-11-21 13:33:47,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 129. [2019-11-21 13:33:47,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-11-21 13:33:47,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2019-11-21 13:33:47,327 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 65 [2019-11-21 13:33:47,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:33:47,327 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2019-11-21 13:33:47,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 13:33:47,327 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2019-11-21 13:33:47,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-11-21 13:33:47,328 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:33:47,328 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:33:47,532 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:33:47,533 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:33:47,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:33:47,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1695245266, now seen corresponding path program 1 times [2019-11-21 13:33:47,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:33:47,534 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [802372402] [2019-11-21 13:33:47,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:33:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:33:48,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 36 conjunts are in the unsatisfiable core [2019-11-21 13:33:48,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:33:48,064 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 13:33:48,065 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:33:48,074 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:33:48,078 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 13:33:48,078 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:33:48,086 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:33:48,086 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:33:48,086 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 13:33:50,328 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 13:33:50,329 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 12 treesize of output 14 [2019-11-21 13:33:50,330 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:33:50,352 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:33:50,368 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:33:50,368 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-21 13:33:50,369 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:33:50,387 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:33:50,388 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 13:33:50,388 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2019-11-21 13:33:50,494 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 13:33:50,496 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 12 treesize of output 14 [2019-11-21 13:33:50,496 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:33:50,536 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:33:50,550 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:33:50,551 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-21 13:33:50,551 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:33:50,570 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:33:50,571 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 13:33:50,571 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2019-11-21 13:33:50,691 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 13:33:50,692 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:33:51,016 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:33:51,321 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:33:51,322 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:33:51,322 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:33:51,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:33:51,324 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:33:51,325 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:33:51,325 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:33:51,326 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:33:51,327 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:33:58,580 WARN L192 SmtUtils]: Spent 3.94 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 13:33:58,583 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:34:02,085 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:34:02,133 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:34:02,134 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 26 treesize of output 30 [2019-11-21 13:34:02,135 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:34:02,165 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:34:02,166 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 26 treesize of output 30 [2019-11-21 13:34:02,167 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:34:02,185 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:34:02,185 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 21 treesize of output 25 [2019-11-21 13:34:02,186 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-21 13:34:02,260 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:34:02,260 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2019-11-21 13:34:02,261 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:74, output treesize:39 [2019-11-21 13:34:02,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:34:03,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:34:03,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:34:03,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:34:03,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:34:03,275 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:34:03,275 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:34:03,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:34:03,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:34:03,280 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2019-11-21 13:34:03,284 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-21 13:34:20,005 WARN L192 SmtUtils]: Spent 9.17 s on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2019-11-21 13:34:20,009 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:34:28,287 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-11-21 13:34:33,788 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_338|], 2=[|v_#length_304|]} [2019-11-21 13:34:33,794 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 13:34:33,794 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:34:33,803 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:34:33,805 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 13:34:33,806 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:34:33,815 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:34:33,816 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:34:33,816 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-21 13:34:34,791 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 13:34:34,800 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 13:34:34,800 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:34:34,839 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:34:34,843 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 13:34:34,844 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:34:34,867 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:34:34,868 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 13:34:34,868 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-21 13:34:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 2 proven. 11 refuted. 4 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 13:34:35,076 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [802372402] [2019-11-21 13:34:35,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:34:35,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 27 [2019-11-21 13:34:35,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826869555] [2019-11-21 13:34:35,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-21 13:34:35,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:34:35,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-21 13:34:35,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=673, Unknown=7, NotChecked=0, Total=756 [2019-11-21 13:34:35,079 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand 28 states. [2019-11-21 13:35:09,300 WARN L192 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 62 DAG size of output: 26 [2019-11-21 13:35:26,753 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2019-11-21 13:35:29,186 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-11-21 13:35:33,406 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_prenex_24 (_ BitVec 32))) (= (select |c_old(#valid)| v_prenex_24) (_ bv0 1))) (= c_ldv_malloc_~size |c_ldv_malloc_#in~size|) (= (_ bv0 32) |c_ldv_malloc_#res.offset|) (= (bvadd (select |c_#valid| |c_ldv_malloc_#res.base|) (_ bv1 1)) (_ bv0 1)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|) (forall ((v_alloc_17_~array.base_BEFORE_CALL_8 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_6 (_ BitVec 32)) (v_alloc_17_~i~0_BEFORE_CALL_10 (_ BitVec 32))) (let ((.cse1 (bvmul v_alloc_17_~i~0_BEFORE_CALL_10 (_ bv4 32)))) (let ((.cse0 (bvadd v_alloc_17_~array.offset_BEFORE_CALL_6 .cse1 (_ bv4 32)))) (or (exists ((v_prenex_26 (_ BitVec 32)) (v_prenex_25 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_26)) (not (bvsle (bvadd v_alloc_17_~array.offset_BEFORE_CALL_6 (bvmul v_alloc_17_~i~0_BEFORE_CALL_10 (_ bv4 32)) (_ bv8 32)) (select (store |c_old(#length)| v_prenex_26 v_prenex_25) v_alloc_17_~array.base_BEFORE_CALL_8))))) (forall ((v_ldv_malloc_~size_94 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_80| (_ BitVec 32))) (or (bvsle (bvadd v_alloc_17_~array.offset_BEFORE_CALL_6 (bvmul v_alloc_17_~i~0_BEFORE_CALL_10 (_ bv4 32)) (_ bv8 32)) (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_80| v_ldv_malloc_~size_94) v_alloc_17_~array.base_BEFORE_CALL_8)) (= |v_ldv_malloc_#t~malloc12.base_80| v_alloc_17_~array.base_BEFORE_CALL_8))) (not (bvsle .cse0 (bvadd v_alloc_17_~array.offset_BEFORE_CALL_6 .cse1 (_ bv8 32)))) (not (bvsle (_ bv0 32) .cse0)))))) (forall ((v_alloc_17_~array.base_BEFORE_CALL_8 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_6 (_ BitVec 32)) (ldv_malloc_~size (_ BitVec 32)) (v_alloc_17_~i~0_BEFORE_CALL_10 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_85| (_ BitVec 32))) (let ((.cse3 (bvmul v_alloc_17_~i~0_BEFORE_CALL_10 (_ bv4 32)))) (let ((.cse2 (bvadd v_alloc_17_~array.offset_BEFORE_CALL_6 .cse3 (_ bv4 32)))) (or (exists ((v_prenex_26 (_ BitVec 32)) (v_prenex_25 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_26)) (not (bvsle (bvadd v_alloc_17_~array.offset_BEFORE_CALL_6 (bvmul v_alloc_17_~i~0_BEFORE_CALL_10 (_ bv4 32)) (_ bv8 32)) (select (store |c_old(#length)| v_prenex_26 v_prenex_25) v_alloc_17_~array.base_BEFORE_CALL_8))))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_85|) (_ bv0 1))) (not (bvsle .cse2 (bvadd v_alloc_17_~array.offset_BEFORE_CALL_6 .cse3 (_ bv8 32)))) (forall ((v_ldv_malloc_~size_94 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_80| (_ BitVec 32))) (or (bvsle (bvadd v_alloc_17_~array.offset_BEFORE_CALL_6 (bvmul v_alloc_17_~i~0_BEFORE_CALL_10 (_ bv4 32)) (_ bv8 32)) (select (store (store |c_#length| |v_ldv_malloc_#t~malloc12.base_85| ldv_malloc_~size) |v_ldv_malloc_#t~malloc12.base_80| v_ldv_malloc_~size_94) v_alloc_17_~array.base_BEFORE_CALL_8)) (= |v_ldv_malloc_#t~malloc12.base_80| v_alloc_17_~array.base_BEFORE_CALL_8))) (not (bvsle (_ bv0 32) .cse2))))))) is different from false [2019-11-21 13:36:10,036 WARN L192 SmtUtils]: Spent 22.29 s on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-11-21 13:36:57,203 WARN L192 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 31 [2019-11-21 13:37:17,649 WARN L192 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2019-11-21 13:37:39,466 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2019-11-21 13:37:41,244 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-21 13:38:03,656 WARN L192 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2019-11-21 13:40:08,895 WARN L192 SmtUtils]: Spent 1.97 m on a formula simplification. DAG size of input: 174 DAG size of output: 169 [2019-11-21 13:40:28,267 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 13:41:25,761 WARN L192 SmtUtils]: Spent 56.78 s on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2019-11-21 13:41:38,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:41:38,849 INFO L93 Difference]: Finished difference Result 282 states and 329 transitions. [2019-11-21 13:41:38,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-11-21 13:41:38,850 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 66 [2019-11-21 13:41:38,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:41:38,852 INFO L225 Difference]: With dead ends: 282 [2019-11-21 13:41:38,852 INFO L226 Difference]: Without dead ends: 282 [2019-11-21 13:41:38,853 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 100 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 292.1s TimeCoverageRelationStatistics Valid=271, Invalid=1972, Unknown=17, NotChecked=92, Total=2352 [2019-11-21 13:41:38,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2019-11-21 13:41:38,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 165. [2019-11-21 13:41:38,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2019-11-21 13:41:38,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 206 transitions. [2019-11-21 13:41:38,862 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 206 transitions. Word has length 66 [2019-11-21 13:41:38,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:41:38,862 INFO L462 AbstractCegarLoop]: Abstraction has 165 states and 206 transitions. [2019-11-21 13:41:38,863 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-21 13:41:38,863 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 206 transitions. [2019-11-21 13:41:38,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-21 13:41:38,864 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:41:38,864 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:41:39,068 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:41:39,069 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:41:39,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:41:39,069 INFO L82 PathProgramCache]: Analyzing trace with hash 404669401, now seen corresponding path program 1 times [2019-11-21 13:41:39,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:41:39,070 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [125092828] [2019-11-21 13:41:39,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:41:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:41:39,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 13:41:39,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:41:39,815 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 13:41:39,816 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:41:40,115 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:41:40,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:41:40,441 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 24 treesize of output 22 [2019-11-21 13:41:40,441 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 13:41:40,456 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 19 treesize of output 17 [2019-11-21 13:41:40,457 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 13:41:40,502 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:41:40,503 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-11-21 13:41:40,504 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:40 [2019-11-21 13:41:41,198 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 13:41:41,198 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [125092828] [2019-11-21 13:41:41,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:41:41,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2019-11-21 13:41:41,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044596571] [2019-11-21 13:41:41,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-21 13:41:41,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:41:41,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-21 13:41:41,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2019-11-21 13:41:41,200 INFO L87 Difference]: Start difference. First operand 165 states and 206 transitions. Second operand 20 states. [2019-11-21 13:41:43,577 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 19 [2019-11-21 13:41:44,555 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2019-11-21 13:41:45,469 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2019-11-21 13:41:45,774 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2019-11-21 13:41:46,248 WARN L192 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2019-11-21 13:41:47,371 WARN L192 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2019-11-21 13:41:47,642 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2019-11-21 13:41:48,541 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-11-21 13:41:49,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:41:49,009 INFO L93 Difference]: Finished difference Result 309 states and 359 transitions. [2019-11-21 13:41:49,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-11-21 13:41:49,011 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 68 [2019-11-21 13:41:49,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:41:49,013 INFO L225 Difference]: With dead ends: 309 [2019-11-21 13:41:49,013 INFO L226 Difference]: Without dead ends: 309 [2019-11-21 13:41:49,014 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=371, Invalid=1699, Unknown=0, NotChecked=0, Total=2070 [2019-11-21 13:41:49,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2019-11-21 13:41:49,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 168. [2019-11-21 13:41:49,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-11-21 13:41:49,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 209 transitions. [2019-11-21 13:41:49,023 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 209 transitions. Word has length 68 [2019-11-21 13:41:49,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:41:49,023 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 209 transitions. [2019-11-21 13:41:49,024 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-21 13:41:49,024 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 209 transitions. [2019-11-21 13:41:49,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-11-21 13:41:49,025 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:41:49,025 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:41:49,229 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:41:49,230 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:41:49,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:41:49,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1266589644, now seen corresponding path program 1 times [2019-11-21 13:41:49,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:41:49,232 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [452965059] [2019-11-21 13:41:49,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:41:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:41:49,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-21 13:41:49,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:41:49,688 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:41:49,689 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-21 13:41:49,689 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:41:49,707 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 13:41:49,707 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:41:49,708 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 13:41:49,708 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 13:41:49,709 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:41:49,713 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:41:49,719 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:41:49,723 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:41:55,893 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 13:41:55,893 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:42:00,254 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:42:00,256 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 13:42:00,261 INFO L168 Benchmark]: Toolchain (without parser) took 869448.74 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 309.9 MB). Free memory was 955.0 MB in the beginning and 1.2 GB in the end (delta: -205.5 MB). Peak memory consumption was 104.4 MB. Max. memory is 11.5 GB. [2019-11-21 13:42:00,262 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 13:42:00,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 850.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -131.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-21 13:42:00,262 INFO L168 Benchmark]: Boogie Preprocessor took 129.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-21 13:42:00,263 INFO L168 Benchmark]: RCFGBuilder took 1700.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 960.7 MB in the end (delta: 113.4 MB). Peak memory consumption was 113.4 MB. Max. memory is 11.5 GB. [2019-11-21 13:42:00,263 INFO L168 Benchmark]: TraceAbstraction took 866763.75 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 183.0 MB). Free memory was 960.7 MB in the beginning and 1.2 GB in the end (delta: -199.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 13:42:00,265 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 850.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -131.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 129.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1700.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 960.7 MB in the end (delta: 113.4 MB). Peak memory consumption was 113.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 866763.75 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 183.0 MB). Free memory was 960.7 MB in the beginning and 1.2 GB in the end (delta: -199.8 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. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...