./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.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_test22_3-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86e81ff2f197ef445354f5e78baab3ebc9b73948 --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 12:59:56,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 12:59:56,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 12:59:56,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 12:59:56,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 12:59:56,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 12:59:56,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 12:59:56,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 12:59:56,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 12:59:56,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 12:59:56,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 12:59:56,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 12:59:56,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 12:59:56,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 12:59:56,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 12:59:56,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 12:59:56,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 12:59:56,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 12:59:56,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 12:59:56,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 12:59:56,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 12:59:56,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 12:59:56,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 12:59:56,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 12:59:56,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 12:59:56,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 12:59:56,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 12:59:56,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 12:59:56,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 12:59:56,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 12:59:56,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 12:59:56,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 12:59:56,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 12:59:56,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 12:59:56,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 12:59:56,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 12:59:56,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 12:59:56,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 12:59:56,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 12:59:56,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 12:59:56,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 12:59:56,509 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 12:59:56,532 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 12:59:56,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 12:59:56,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 12:59:56,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 12:59:56,534 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 12:59:56,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 12:59:56,535 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 12:59:56,535 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 12:59:56,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 12:59:56,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 12:59:56,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 12:59:56,536 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 12:59:56,537 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 12:59:56,537 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 12:59:56,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 12:59:56,538 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 12:59:56,538 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 12:59:56,538 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 12:59:56,538 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 12:59:56,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 12:59:56,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 12:59:56,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 12:59:56,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 12:59:56,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:59:56,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 12:59:56,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 12:59:56,541 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 12:59:56,541 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 12:59:56,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 12:59:56,542 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 -> 86e81ff2f197ef445354f5e78baab3ebc9b73948 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 12:59:56,845 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 12:59:56,858 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 12:59:56,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 12:59:56,864 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 12:59:56,864 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 12:59:56,865 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2019-11-21 12:59:56,946 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bce73168/c243cd55f9464585a6ba5f40b1b1d615/FLAG8eb3e48b2 [2019-11-21 12:59:57,507 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 12:59:57,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2019-11-21 12:59:57,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bce73168/c243cd55f9464585a6ba5f40b1b1d615/FLAG8eb3e48b2 [2019-11-21 12:59:57,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bce73168/c243cd55f9464585a6ba5f40b1b1d615 [2019-11-21 12:59:57,783 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 12:59:57,785 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 12:59:57,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 12:59:57,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 12:59:57,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 12:59:57,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:59:57" (1/1) ... [2019-11-21 12:59:57,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f2aa46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:57, skipping insertion in model container [2019-11-21 12:59:57,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:59:57" (1/1) ... [2019-11-21 12:59:57,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 12:59:57,848 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:59:58,283 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 12:59:58,284 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 12:59:58,284 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:59:58,296 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 12:59:58,297 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 12:59:58,297 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:59:58,299 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 12:59:58,300 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 12:59:58,300 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:59:58,303 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 12:59:58,303 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 12:59:58,304 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:59:58,329 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 12:59:58,329 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 12:59:58,330 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:59:58,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:59:58,371 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 12:59:58,390 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:59:58,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:59:58,458 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 12:59:58,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:59:58,647 INFO L205 MainTranslator]: Completed translation [2019-11-21 12:59:58,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:58 WrapperNode [2019-11-21 12:59:58,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 12:59:58,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 12:59:58,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 12:59:58,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 12:59:58,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:58" (1/1) ... [2019-11-21 12:59:58,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:58" (1/1) ... [2019-11-21 12:59:58,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:58" (1/1) ... [2019-11-21 12:59:58,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:58" (1/1) ... [2019-11-21 12:59:58,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:58" (1/1) ... [2019-11-21 12:59:58,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:58" (1/1) ... [2019-11-21 12:59:58,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:58" (1/1) ... [2019-11-21 12:59:58,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 12:59:58,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 12:59:58,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 12:59:58,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 12:59:58,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:59:58,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 12:59:58,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 12:59:58,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:59:58,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 12:59:58,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 12:59:58,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 12:59:58,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 12:59:58,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 12:59:58,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 12:59:58,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 12:59:58,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 12:59:58,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 12:59:58,823 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:59:58,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 12:59:58,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 12:59:58,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 12:59:58,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 12:59:58,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 12:59:58,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 12:59:58,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 12:59:58,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 12:59:58,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 12:59:58,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 12:59:58,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 12:59:58,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 12:59:58,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 12:59:58,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 12:59:58,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 12:59:58,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 12:59:58,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 12:59:58,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 12:59:58,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 12:59:58,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 12:59:58,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 12:59:58,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 12:59:58,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 12:59:58,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 12:59:58,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 12:59:58,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 12:59:58,828 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 12:59:58,828 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 12:59:58,829 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_get [2019-11-21 12:59:58,829 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_put [2019-11-21 12:59:58,829 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 12:59:58,829 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 12:59:58,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 12:59:58,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 12:59:58,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 12:59:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 12:59:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 12:59:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 12:59:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 12:59:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 12:59:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 12:59:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 12:59:58,831 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 12:59:58,831 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 12:59:58,831 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 12:59:58,831 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 12:59:58,831 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 12:59:58,831 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 12:59:58,831 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 12:59:58,831 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 12:59:58,832 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 12:59:58,832 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 12:59:58,832 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 12:59:58,832 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 12:59:58,832 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 12:59:58,832 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 12:59:58,832 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 12:59:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 12:59:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 12:59:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 12:59:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 12:59:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 12:59:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 12:59:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 12:59:58,834 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 12:59:58,834 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 12:59:58,834 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 12:59:58,834 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 12:59:58,834 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 12:59:58,834 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 12:59:58,834 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 12:59:58,834 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 12:59:58,835 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 12:59:58,835 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 12:59:58,835 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 12:59:58,835 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 12:59:58,835 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 12:59:58,835 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 12:59:58,835 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 12:59:58,836 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 12:59:58,836 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 12:59:58,836 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 12:59:58,836 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 12:59:58,836 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 12:59:58,836 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 12:59:58,836 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 12:59:58,836 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 12:59:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 12:59:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 12:59:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 12:59:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 12:59:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 12:59:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 12:59:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 12:59:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 12:59:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 12:59:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 12:59:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 12:59:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 12:59:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 12:59:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 12:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 12:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 12:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 12:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 12:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 12:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 12:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 12:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 12:59:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 12:59:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 12:59:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 12:59:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 12:59:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 12:59:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 12:59:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 12:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 12:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 12:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 12:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 12:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 12:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 12:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 12:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 12:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 12:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 12:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 12:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 12:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 12:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 12:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 12:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 12:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 12:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 12:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 12:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 12:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 12:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 12:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 12:59:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 12:59:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 12:59:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 12:59:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 12:59:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 12:59:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 12:59:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 12:59:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 12:59:58,845 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 12:59:58,845 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 12:59:58,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 12:59:58,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 12:59:58,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 12:59:58,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 12:59:58,845 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:59:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 12:59:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 12:59:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 12:59:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 12:59:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 12:59:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 12:59:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 12:59:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 12:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 12:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 12:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 12:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 12:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 12:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 12:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 12:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 12:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 12:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 12:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 12:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 12:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 12:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 12:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 12:59:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 12:59:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 12:59:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 12:59:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 12:59:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 12:59:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 12:59:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 12:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 12:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 12:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 12:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 12:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 12:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_get [2019-11-21 12:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_put [2019-11-21 12:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 12:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 12:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 12:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 12:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 12:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 12:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 12:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 12:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 12:59:58,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 12:59:59,541 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:59:59,983 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 13:00:00,388 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 13:00:00,389 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 13:00:00,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:00:00 BoogieIcfgContainer [2019-11-21 13:00:00,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 13:00:00,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 13:00:00,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 13:00:00,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 13:00:00,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:59:57" (1/3) ... [2019-11-21 13:00:00,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a39133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:00:00, skipping insertion in model container [2019-11-21 13:00:00,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:58" (2/3) ... [2019-11-21 13:00:00,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a39133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:00:00, skipping insertion in model container [2019-11-21 13:00:00,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:00:00" (3/3) ... [2019-11-21 13:00:00,400 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test22_3-1.i [2019-11-21 13:00:00,412 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 13:00:00,425 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2019-11-21 13:00:00,437 INFO L249 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2019-11-21 13:00:00,462 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 13:00:00,462 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 13:00:00,462 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 13:00:00,463 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 13:00:00,463 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 13:00:00,463 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 13:00:00,463 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 13:00:00,463 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 13:00:00,486 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-11-21 13:00:00,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 13:00:00,496 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:00,497 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 13:00:00,498 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:00,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:00,505 INFO L82 PathProgramCache]: Analyzing trace with hash -543203063, now seen corresponding path program 1 times [2019-11-21 13:00:00,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:00,518 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [604501153] [2019-11-21 13:00:00,518 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 13:00:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:00,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 13:00:00,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:00,923 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 13:00:00,923 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:00:00,935 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:00:00,936 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:00:00,937 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 13:00:00,969 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 13:00:00,969 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:01,026 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 13:00:01,028 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [604501153] [2019-11-21 13:00:01,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:01,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 13:00:01,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405360757] [2019-11-21 13:00:01,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 13:00:01,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:01,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 13:00:01,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:00:01,053 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 5 states. [2019-11-21 13:00:01,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:01,452 INFO L93 Difference]: Finished difference Result 165 states and 177 transitions. [2019-11-21 13:00:01,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 13:00:01,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 13:00:01,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:01,469 INFO L225 Difference]: With dead ends: 165 [2019-11-21 13:00:01,469 INFO L226 Difference]: Without dead ends: 162 [2019-11-21 13:00:01,471 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 13:00:01,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-21 13:00:01,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2019-11-21 13:00:01,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-21 13:00:01,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 168 transitions. [2019-11-21 13:00:01,535 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 168 transitions. Word has length 17 [2019-11-21 13:00:01,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:01,535 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 168 transitions. [2019-11-21 13:00:01,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 13:00:01,536 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 168 transitions. [2019-11-21 13:00:01,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 13:00:01,537 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:01,537 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 13:00:01,740 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:01,742 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:01,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:01,743 INFO L82 PathProgramCache]: Analyzing trace with hash -543203062, now seen corresponding path program 1 times [2019-11-21 13:00:01,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:01,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1349565631] [2019-11-21 13:00:01,744 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 13:00:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:02,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-21 13:00:02,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:02,071 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 13:00:02,072 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:00:02,078 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:00:02,078 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:00:02,079 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 13:00:02,146 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 13:00:02,147 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:02,522 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 13:00:02,523 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1349565631] [2019-11-21 13:00:02,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:02,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-21 13:00:02,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658814802] [2019-11-21 13:00:02,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 13:00:02,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:02,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 13:00:02,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-21 13:00:02,527 INFO L87 Difference]: Start difference. First operand 156 states and 168 transitions. Second operand 10 states. [2019-11-21 13:00:03,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:03,302 INFO L93 Difference]: Finished difference Result 161 states and 173 transitions. [2019-11-21 13:00:03,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 13:00:03,305 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-21 13:00:03,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:03,308 INFO L225 Difference]: With dead ends: 161 [2019-11-21 13:00:03,308 INFO L226 Difference]: Without dead ends: 161 [2019-11-21 13:00:03,309 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-21 13:00:03,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-11-21 13:00:03,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 156. [2019-11-21 13:00:03,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-21 13:00:03,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 167 transitions. [2019-11-21 13:00:03,325 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 167 transitions. Word has length 17 [2019-11-21 13:00:03,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:03,325 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 167 transitions. [2019-11-21 13:00:03,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 13:00:03,326 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 167 transitions. [2019-11-21 13:00:03,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 13:00:03,326 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:03,326 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 13:00:03,529 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:03,530 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:03,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:03,531 INFO L82 PathProgramCache]: Analyzing trace with hash -514573912, now seen corresponding path program 1 times [2019-11-21 13:00:03,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:03,533 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [618831395] [2019-11-21 13:00:03,533 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 13:00:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:03,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 13:00:03,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:03,798 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 13:00:03,798 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:03,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:00:03,837 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [618831395] [2019-11-21 13:00:03,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:03,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 13:00:03,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790399555] [2019-11-21 13:00:03,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 13:00:03,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:03,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 13:00:03,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:00:03,839 INFO L87 Difference]: Start difference. First operand 156 states and 167 transitions. Second operand 5 states. [2019-11-21 13:00:03,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:03,884 INFO L93 Difference]: Finished difference Result 155 states and 164 transitions. [2019-11-21 13:00:03,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 13:00:03,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 13:00:03,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:03,889 INFO L225 Difference]: With dead ends: 155 [2019-11-21 13:00:03,889 INFO L226 Difference]: Without dead ends: 155 [2019-11-21 13:00:03,890 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 13:00:03,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-11-21 13:00:03,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2019-11-21 13:00:03,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-21 13:00:03,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 162 transitions. [2019-11-21 13:00:03,908 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 162 transitions. Word has length 17 [2019-11-21 13:00:03,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:03,909 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 162 transitions. [2019-11-21 13:00:03,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 13:00:03,909 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 162 transitions. [2019-11-21 13:00:03,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-21 13:00:03,910 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:03,911 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:00:04,115 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:04,118 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:04,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:04,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1816165994, now seen corresponding path program 1 times [2019-11-21 13:00:04,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:04,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [152456096] [2019-11-21 13:00:04,124 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 13:00:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:04,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 13:00:04,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:04,381 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 13:00:04,382 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:04,456 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 13:00:04,456 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [152456096] [2019-11-21 13:00:04,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:04,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 13:00:04,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345602701] [2019-11-21 13:00:04,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 13:00:04,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:04,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 13:00:04,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:00:04,458 INFO L87 Difference]: Start difference. First operand 153 states and 162 transitions. Second operand 5 states. [2019-11-21 13:00:04,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:04,483 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2019-11-21 13:00:04,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 13:00:04,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-21 13:00:04,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:04,487 INFO L225 Difference]: With dead ends: 155 [2019-11-21 13:00:04,487 INFO L226 Difference]: Without dead ends: 155 [2019-11-21 13:00:04,487 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 13:00:04,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-11-21 13:00:04,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2019-11-21 13:00:04,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-21 13:00:04,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 161 transitions. [2019-11-21 13:00:04,499 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 161 transitions. Word has length 29 [2019-11-21 13:00:04,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:04,499 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 161 transitions. [2019-11-21 13:00:04,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 13:00:04,499 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 161 transitions. [2019-11-21 13:00:04,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-21 13:00:04,500 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:04,501 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:00:04,711 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:04,712 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:04,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:04,712 INFO L82 PathProgramCache]: Analyzing trace with hash 819093641, now seen corresponding path program 1 times [2019-11-21 13:00:04,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:04,713 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1950005877] [2019-11-21 13:00:04,713 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 13:00:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:05,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-21 13:00:05,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:05,150 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 13:00:05,152 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:05,217 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 13:00:05,217 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1950005877] [2019-11-21 13:00:05,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:05,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2019-11-21 13:00:05,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447468545] [2019-11-21 13:00:05,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 13:00:05,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:05,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 13:00:05,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-21 13:00:05,223 INFO L87 Difference]: Start difference. First operand 153 states and 161 transitions. Second operand 9 states. [2019-11-21 13:00:05,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:05,384 INFO L93 Difference]: Finished difference Result 174 states and 184 transitions. [2019-11-21 13:00:05,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 13:00:05,387 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2019-11-21 13:00:05,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:05,389 INFO L225 Difference]: With dead ends: 174 [2019-11-21 13:00:05,391 INFO L226 Difference]: Without dead ends: 174 [2019-11-21 13:00:05,392 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-21 13:00:05,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2019-11-21 13:00:05,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 167. [2019-11-21 13:00:05,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-11-21 13:00:05,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 175 transitions. [2019-11-21 13:00:05,417 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 175 transitions. Word has length 29 [2019-11-21 13:00:05,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:05,417 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 175 transitions. [2019-11-21 13:00:05,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 13:00:05,418 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 175 transitions. [2019-11-21 13:00:05,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-21 13:00:05,421 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:05,421 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:00:05,628 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:05,629 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:05,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:05,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1080067075, now seen corresponding path program 1 times [2019-11-21 13:00:05,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:05,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [618328036] [2019-11-21 13:00:05,630 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 13:00:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:05,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 13:00:05,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:05,923 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 13:00:05,923 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:05,980 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 13:00:05,982 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [618328036] [2019-11-21 13:00:05,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:05,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 13:00:05,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536940456] [2019-11-21 13:00:05,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 13:00:05,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:05,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 13:00:05,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-21 13:00:05,984 INFO L87 Difference]: Start difference. First operand 167 states and 175 transitions. Second operand 6 states. [2019-11-21 13:00:06,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:06,038 INFO L93 Difference]: Finished difference Result 173 states and 181 transitions. [2019-11-21 13:00:06,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 13:00:06,039 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-21 13:00:06,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:06,040 INFO L225 Difference]: With dead ends: 173 [2019-11-21 13:00:06,040 INFO L226 Difference]: Without dead ends: 169 [2019-11-21 13:00:06,041 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-21 13:00:06,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2019-11-21 13:00:06,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2019-11-21 13:00:06,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-11-21 13:00:06,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 177 transitions. [2019-11-21 13:00:06,049 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 177 transitions. Word has length 32 [2019-11-21 13:00:06,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:06,049 INFO L462 AbstractCegarLoop]: Abstraction has 169 states and 177 transitions. [2019-11-21 13:00:06,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 13:00:06,049 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 177 transitions. [2019-11-21 13:00:06,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-21 13:00:06,051 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:06,051 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-21 13:00:06,262 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:06,263 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:06,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:06,263 INFO L82 PathProgramCache]: Analyzing trace with hash -909692963, now seen corresponding path program 1 times [2019-11-21 13:00:06,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:06,264 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1156811766] [2019-11-21 13:00:06,264 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 13:00:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:06,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 13:00:06,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:06,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:00:06,584 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:06,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:00:06,709 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1156811766] [2019-11-21 13:00:06,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:00:06,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-21 13:00:06,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197492263] [2019-11-21 13:00:06,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 13:00:06,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:06,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 13:00:06,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-21 13:00:06,711 INFO L87 Difference]: Start difference. First operand 169 states and 177 transitions. Second operand 10 states. [2019-11-21 13:00:06,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:06,919 INFO L93 Difference]: Finished difference Result 177 states and 187 transitions. [2019-11-21 13:00:06,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 13:00:06,920 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-11-21 13:00:06,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:06,922 INFO L225 Difference]: With dead ends: 177 [2019-11-21 13:00:06,923 INFO L226 Difference]: Without dead ends: 173 [2019-11-21 13:00:06,923 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2019-11-21 13:00:06,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-11-21 13:00:06,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2019-11-21 13:00:06,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-11-21 13:00:06,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 181 transitions. [2019-11-21 13:00:06,932 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 181 transitions. Word has length 34 [2019-11-21 13:00:06,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:06,933 INFO L462 AbstractCegarLoop]: Abstraction has 173 states and 181 transitions. [2019-11-21 13:00:06,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 13:00:06,933 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 181 transitions. [2019-11-21 13:00:06,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-21 13:00:06,935 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:06,935 INFO L410 BasicCegarLoop]: trace histogram [6, 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 13:00:07,138 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:07,139 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:07,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:07,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1849438109, now seen corresponding path program 2 times [2019-11-21 13:00:07,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:07,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1604710115] [2019-11-21 13:00:07,140 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:07,471 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 13:00:07,471 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 13:00:07,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 13:00:07,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:07,484 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 13:00:07,484 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:00:07,487 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:00:07,487 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:00:07,487 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 13:00:07,634 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-21 13:00:07,634 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:07,727 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-21 13:00:07,727 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1604710115] [2019-11-21 13:00:07,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:07,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 12 [2019-11-21 13:00:07,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198182210] [2019-11-21 13:00:07,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 13:00:07,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:07,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 13:00:07,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 13:00:07,731 INFO L87 Difference]: Start difference. First operand 173 states and 181 transitions. Second operand 13 states. [2019-11-21 13:00:09,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:09,186 INFO L93 Difference]: Finished difference Result 198 states and 214 transitions. [2019-11-21 13:00:09,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 13:00:09,187 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2019-11-21 13:00:09,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:09,188 INFO L225 Difference]: With dead ends: 198 [2019-11-21 13:00:09,189 INFO L226 Difference]: Without dead ends: 198 [2019-11-21 13:00:09,189 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-11-21 13:00:09,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2019-11-21 13:00:09,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 172. [2019-11-21 13:00:09,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-11-21 13:00:09,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 180 transitions. [2019-11-21 13:00:09,198 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 180 transitions. Word has length 38 [2019-11-21 13:00:09,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:09,198 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 180 transitions. [2019-11-21 13:00:09,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 13:00:09,198 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 180 transitions. [2019-11-21 13:00:09,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-21 13:00:09,200 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:09,200 INFO L410 BasicCegarLoop]: trace histogram [6, 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 13:00:09,413 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:09,414 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:09,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:09,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1849438110, now seen corresponding path program 1 times [2019-11-21 13:00:09,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:09,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [216063571] [2019-11-21 13:00:09,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:09,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 13:00:09,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:09,819 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:00:09,820 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:00:10,145 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [216063571] [2019-11-21 13:00:10,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:00:10,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-11-21 13:00:10,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133161857] [2019-11-21 13:00:10,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-21 13:00:10,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:10,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-21 13:00:10,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-11-21 13:00:10,147 INFO L87 Difference]: Start difference. First operand 172 states and 180 transitions. Second operand 18 states. [2019-11-21 13:00:11,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:11,104 INFO L93 Difference]: Finished difference Result 184 states and 198 transitions. [2019-11-21 13:00:11,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-21 13:00:11,105 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2019-11-21 13:00:11,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:11,106 INFO L225 Difference]: With dead ends: 184 [2019-11-21 13:00:11,107 INFO L226 Difference]: Without dead ends: 180 [2019-11-21 13:00:11,108 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2019-11-21 13:00:11,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2019-11-21 13:00:11,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2019-11-21 13:00:11,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-11-21 13:00:11,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 188 transitions. [2019-11-21 13:00:11,115 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 188 transitions. Word has length 38 [2019-11-21 13:00:11,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:11,115 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 188 transitions. [2019-11-21 13:00:11,115 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-21 13:00:11,115 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 188 transitions. [2019-11-21 13:00:11,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-21 13:00:11,117 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:11,117 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:00:11,320 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:11,321 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:11,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:11,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1796174276, now seen corresponding path program 1 times [2019-11-21 13:00:11,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:11,322 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2044367651] [2019-11-21 13:00:11,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:11,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-21 13:00:11,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:11,739 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 13:00:11,740 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:11,800 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 13:00:11,801 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2044367651] [2019-11-21 13:00:11,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:11,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2019-11-21 13:00:11,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910216698] [2019-11-21 13:00:11,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 13:00:11,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:11,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 13:00:11,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-21 13:00:11,803 INFO L87 Difference]: Start difference. First operand 180 states and 188 transitions. Second operand 9 states. [2019-11-21 13:00:11,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:11,906 INFO L93 Difference]: Finished difference Result 194 states and 204 transitions. [2019-11-21 13:00:11,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 13:00:11,907 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2019-11-21 13:00:11,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:11,909 INFO L225 Difference]: With dead ends: 194 [2019-11-21 13:00:11,909 INFO L226 Difference]: Without dead ends: 194 [2019-11-21 13:00:11,910 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-21 13:00:11,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-11-21 13:00:11,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 190. [2019-11-21 13:00:11,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-11-21 13:00:11,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 199 transitions. [2019-11-21 13:00:11,918 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 199 transitions. Word has length 42 [2019-11-21 13:00:11,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:11,918 INFO L462 AbstractCegarLoop]: Abstraction has 190 states and 199 transitions. [2019-11-21 13:00:11,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 13:00:11,919 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 199 transitions. [2019-11-21 13:00:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-21 13:00:11,919 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:11,920 INFO L410 BasicCegarLoop]: trace histogram [14, 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 13:00:12,123 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:12,124 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:12,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:12,124 INFO L82 PathProgramCache]: Analyzing trace with hash 453283614, now seen corresponding path program 2 times [2019-11-21 13:00:12,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:12,125 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [293005887] [2019-11-21 13:00:12,126 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 13:00:12,422 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 13:00:12,422 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 13:00:12,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-21 13:00:12,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:12,444 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 13:00:12,445 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:00:12,450 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:00:12,451 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:00:12,451 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 13:00:12,681 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-21 13:00:12,681 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:13,611 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-21 13:00:13,612 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [293005887] [2019-11-21 13:00:13,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:13,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-21 13:00:13,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022435812] [2019-11-21 13:00:13,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-21 13:00:13,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:13,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-21 13:00:13,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-21 13:00:13,617 INFO L87 Difference]: Start difference. First operand 190 states and 199 transitions. Second operand 23 states. [2019-11-21 13:00:16,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:16,740 INFO L93 Difference]: Finished difference Result 193 states and 201 transitions. [2019-11-21 13:00:16,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 13:00:16,740 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 46 [2019-11-21 13:00:16,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:16,742 INFO L225 Difference]: With dead ends: 193 [2019-11-21 13:00:16,742 INFO L226 Difference]: Without dead ends: 193 [2019-11-21 13:00:16,743 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-21 13:00:16,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-11-21 13:00:16,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 189. [2019-11-21 13:00:16,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-11-21 13:00:16,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 198 transitions. [2019-11-21 13:00:16,752 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 198 transitions. Word has length 46 [2019-11-21 13:00:16,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:16,753 INFO L462 AbstractCegarLoop]: Abstraction has 189 states and 198 transitions. [2019-11-21 13:00:16,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-21 13:00:16,753 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 198 transitions. [2019-11-21 13:00:16,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-21 13:00:16,754 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:16,754 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:00:16,957 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:16,958 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:16,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:16,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1225762158, now seen corresponding path program 1 times [2019-11-21 13:00:16,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:16,960 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2074119271] [2019-11-21 13:00:16,960 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 13:00:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:17,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 13:00:17,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:17,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 13:00:17,226 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:17,437 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 13:00:17,437 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2074119271] [2019-11-21 13:00:17,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:17,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 13:00:17,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712892711] [2019-11-21 13:00:17,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 13:00:17,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:17,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 13:00:17,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 13:00:17,439 INFO L87 Difference]: Start difference. First operand 189 states and 198 transitions. Second operand 3 states. [2019-11-21 13:00:17,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:17,641 INFO L93 Difference]: Finished difference Result 202 states and 211 transitions. [2019-11-21 13:00:17,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 13:00:17,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-11-21 13:00:17,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:17,644 INFO L225 Difference]: With dead ends: 202 [2019-11-21 13:00:17,644 INFO L226 Difference]: Without dead ends: 171 [2019-11-21 13:00:17,645 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 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 13:00:17,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-11-21 13:00:17,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 161. [2019-11-21 13:00:17,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-11-21 13:00:17,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 168 transitions. [2019-11-21 13:00:17,652 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 168 transitions. Word has length 47 [2019-11-21 13:00:17,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:17,652 INFO L462 AbstractCegarLoop]: Abstraction has 161 states and 168 transitions. [2019-11-21 13:00:17,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 13:00:17,653 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 168 transitions. [2019-11-21 13:00:17,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-21 13:00:17,653 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:17,654 INFO L410 BasicCegarLoop]: trace histogram [14, 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, 1, 1, 1, 1] [2019-11-21 13:00:17,856 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:17,856 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:17,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:17,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1594252556, now seen corresponding path program 1 times [2019-11-21 13:00:17,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:17,858 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1560161377] [2019-11-21 13:00:17,859 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 13:00:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:18,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-21 13:00:18,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:18,428 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:00:18,428 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:18,551 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-21 13:00:19,378 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:00:19,378 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1560161377] [2019-11-21 13:00:19,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:00:19,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2019-11-21 13:00:19,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558298371] [2019-11-21 13:00:19,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-21 13:00:19,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:19,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-21 13:00:19,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2019-11-21 13:00:19,381 INFO L87 Difference]: Start difference. First operand 161 states and 168 transitions. Second operand 34 states. [2019-11-21 13:00:20,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:20,161 INFO L93 Difference]: Finished difference Result 167 states and 174 transitions. [2019-11-21 13:00:20,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-21 13:00:20,162 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 51 [2019-11-21 13:00:20,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:20,165 INFO L225 Difference]: With dead ends: 167 [2019-11-21 13:00:20,165 INFO L226 Difference]: Without dead ends: 163 [2019-11-21 13:00:20,166 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2019-11-21 13:00:20,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-11-21 13:00:20,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2019-11-21 13:00:20,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2019-11-21 13:00:20,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 170 transitions. [2019-11-21 13:00:20,182 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 170 transitions. Word has length 51 [2019-11-21 13:00:20,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:20,182 INFO L462 AbstractCegarLoop]: Abstraction has 163 states and 170 transitions. [2019-11-21 13:00:20,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-21 13:00:20,182 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 170 transitions. [2019-11-21 13:00:20,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-21 13:00:20,183 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:20,183 INFO L410 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1] [2019-11-21 13:00:20,387 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:20,388 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:20,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:20,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1811981012, now seen corresponding path program 2 times [2019-11-21 13:00:20,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:20,390 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1670592795] [2019-11-21 13:00:20,391 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 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 13:00:20,704 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 13:00:20,704 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 13:00:20,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 13:00:20,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:20,714 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 13:00:20,715 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:00:20,717 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:00:20,717 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:00:20,717 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 13:00:20,898 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:20,898 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:20,975 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1670592795] [2019-11-21 13:00:20,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:20,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 12 [2019-11-21 13:00:20,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605392497] [2019-11-21 13:00:20,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 13:00:20,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:20,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 13:00:20,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 13:00:20,977 INFO L87 Difference]: Start difference. First operand 163 states and 170 transitions. Second operand 13 states. [2019-11-21 13:00:22,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:22,163 INFO L93 Difference]: Finished difference Result 187 states and 202 transitions. [2019-11-21 13:00:22,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 13:00:22,164 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2019-11-21 13:00:22,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:22,165 INFO L225 Difference]: With dead ends: 187 [2019-11-21 13:00:22,166 INFO L226 Difference]: Without dead ends: 187 [2019-11-21 13:00:22,166 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-11-21 13:00:22,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2019-11-21 13:00:22,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 161. [2019-11-21 13:00:22,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-11-21 13:00:22,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 168 transitions. [2019-11-21 13:00:22,173 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 168 transitions. Word has length 53 [2019-11-21 13:00:22,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:22,174 INFO L462 AbstractCegarLoop]: Abstraction has 161 states and 168 transitions. [2019-11-21 13:00:22,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 13:00:22,174 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 168 transitions. [2019-11-21 13:00:22,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-21 13:00:22,175 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:22,175 INFO L410 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1] [2019-11-21 13:00:22,378 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:22,379 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:22,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:22,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1811981011, now seen corresponding path program 1 times [2019-11-21 13:00:22,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:22,380 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [471375866] [2019-11-21 13:00:22,381 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 13:00:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:22,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-21 13:00:22,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:22,853 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 13:00:22,853 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:00:22,859 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:00:22,859 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:00:22,860 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 13:00:23,129 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:23,129 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:24,011 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:24,012 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [471375866] [2019-11-21 13:00:24,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:24,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-21 13:00:24,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141241766] [2019-11-21 13:00:24,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-21 13:00:24,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:24,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-21 13:00:24,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-21 13:00:24,014 INFO L87 Difference]: Start difference. First operand 161 states and 168 transitions. Second operand 23 states. [2019-11-21 13:00:27,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:27,239 INFO L93 Difference]: Finished difference Result 159 states and 166 transitions. [2019-11-21 13:00:27,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 13:00:27,240 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 53 [2019-11-21 13:00:27,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:27,242 INFO L225 Difference]: With dead ends: 159 [2019-11-21 13:00:27,242 INFO L226 Difference]: Without dead ends: 159 [2019-11-21 13:00:27,242 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-21 13:00:27,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-11-21 13:00:27,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2019-11-21 13:00:27,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-11-21 13:00:27,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 166 transitions. [2019-11-21 13:00:27,247 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 166 transitions. Word has length 53 [2019-11-21 13:00:27,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:27,248 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 166 transitions. [2019-11-21 13:00:27,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-21 13:00:27,248 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 166 transitions. [2019-11-21 13:00:27,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 13:00:27,249 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:27,249 INFO L410 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:00:27,453 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:27,454 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:27,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:27,455 INFO L82 PathProgramCache]: Analyzing trace with hash 69998689, now seen corresponding path program 1 times [2019-11-21 13:00:27,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:27,455 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1297912913] [2019-11-21 13:00:27,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 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 13:00:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:27,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 13:00:27,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:27,810 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:27,810 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:27,988 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:27,988 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1297912913] [2019-11-21 13:00:27,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:27,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2019-11-21 13:00:27,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868559921] [2019-11-21 13:00:27,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 13:00:27,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:27,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 13:00:27,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-21 13:00:27,990 INFO L87 Difference]: Start difference. First operand 159 states and 166 transitions. Second operand 8 states. [2019-11-21 13:00:28,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:28,040 INFO L93 Difference]: Finished difference Result 161 states and 167 transitions. [2019-11-21 13:00:28,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 13:00:28,043 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2019-11-21 13:00:28,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:28,044 INFO L225 Difference]: With dead ends: 161 [2019-11-21 13:00:28,044 INFO L226 Difference]: Without dead ends: 159 [2019-11-21 13:00:28,045 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-21 13:00:28,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-11-21 13:00:28,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2019-11-21 13:00:28,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-11-21 13:00:28,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 165 transitions. [2019-11-21 13:00:28,050 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 165 transitions. Word has length 58 [2019-11-21 13:00:28,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:28,051 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 165 transitions. [2019-11-21 13:00:28,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 13:00:28,051 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 165 transitions. [2019-11-21 13:00:28,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-21 13:00:28,052 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:28,052 INFO L410 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:00:28,255 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:28,256 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:28,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:28,257 INFO L82 PathProgramCache]: Analyzing trace with hash -164010428, now seen corresponding path program 1 times [2019-11-21 13:00:28,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:28,258 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1195064888] [2019-11-21 13:00:28,258 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 13:00:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:28,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 13:00:28,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:28,659 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:28,659 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:28,837 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:00:28,884 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:28,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1195064888] [2019-11-21 13:00:28,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:28,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2019-11-21 13:00:28,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454115185] [2019-11-21 13:00:28,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-21 13:00:28,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:28,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-21 13:00:28,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-21 13:00:28,885 INFO L87 Difference]: Start difference. First operand 159 states and 165 transitions. Second operand 11 states. [2019-11-21 13:00:29,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:29,020 INFO L93 Difference]: Finished difference Result 163 states and 168 transitions. [2019-11-21 13:00:29,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-21 13:00:29,021 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2019-11-21 13:00:29,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:29,022 INFO L225 Difference]: With dead ends: 163 [2019-11-21 13:00:29,022 INFO L226 Difference]: Without dead ends: 159 [2019-11-21 13:00:29,023 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 13:00:29,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-11-21 13:00:29,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2019-11-21 13:00:29,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-11-21 13:00:29,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 164 transitions. [2019-11-21 13:00:29,028 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 164 transitions. Word has length 63 [2019-11-21 13:00:29,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:29,028 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 164 transitions. [2019-11-21 13:00:29,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-21 13:00:29,028 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 164 transitions. [2019-11-21 13:00:29,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-11-21 13:00:29,029 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:29,030 INFO L410 BasicCegarLoop]: trace histogram [16, 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, 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 13:00:29,230 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:29,230 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:29,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:29,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1943906635, now seen corresponding path program 1 times [2019-11-21 13:00:29,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:29,231 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1776852666] [2019-11-21 13:00:29,231 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 13:00:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:29,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-21 13:00:29,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:29,697 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 13:00:29,697 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:00:29,698 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:00:29,699 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:00:29,699 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 13:00:29,997 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:29,998 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:30,385 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:30,385 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1776852666] [2019-11-21 13:00:30,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:30,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 14] imperfect sequences [] total 19 [2019-11-21 13:00:30,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838774549] [2019-11-21 13:00:30,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-21 13:00:30,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:30,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-21 13:00:30,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2019-11-21 13:00:30,387 INFO L87 Difference]: Start difference. First operand 159 states and 164 transitions. Second operand 20 states. [2019-11-21 13:00:32,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:32,622 INFO L93 Difference]: Finished difference Result 183 states and 196 transitions. [2019-11-21 13:00:32,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-21 13:00:32,622 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 74 [2019-11-21 13:00:32,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:32,624 INFO L225 Difference]: With dead ends: 183 [2019-11-21 13:00:32,624 INFO L226 Difference]: Without dead ends: 183 [2019-11-21 13:00:32,624 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 125 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2019-11-21 13:00:32,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-11-21 13:00:32,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 157. [2019-11-21 13:00:32,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-11-21 13:00:32,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 162 transitions. [2019-11-21 13:00:32,629 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 162 transitions. Word has length 74 [2019-11-21 13:00:32,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:32,630 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 162 transitions. [2019-11-21 13:00:32,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-21 13:00:32,630 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 162 transitions. [2019-11-21 13:00:32,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-11-21 13:00:32,631 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:32,632 INFO L410 BasicCegarLoop]: trace histogram [16, 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, 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 13:00:32,841 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:32,841 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:32,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:32,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1943906634, now seen corresponding path program 1 times [2019-11-21 13:00:32,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:32,843 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [30320137] [2019-11-21 13:00:32,843 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 13:00:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:33,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 40 conjunts are in the unsatisfiable core [2019-11-21 13:00:33,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:33,396 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 13:00:33,397 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:00:33,403 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:00:33,403 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:00:33,406 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 13:00:34,092 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:34,092 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:36,104 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:36,105 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [30320137] [2019-11-21 13:00:36,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:36,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 16] imperfect sequences [] total 34 [2019-11-21 13:00:36,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111404803] [2019-11-21 13:00:36,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-11-21 13:00:36,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:36,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-11-21 13:00:36,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1093, Unknown=0, NotChecked=0, Total=1190 [2019-11-21 13:00:36,107 INFO L87 Difference]: Start difference. First operand 157 states and 162 transitions. Second operand 35 states. [2019-11-21 13:00:40,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:40,958 INFO L93 Difference]: Finished difference Result 155 states and 160 transitions. [2019-11-21 13:00:40,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-21 13:00:40,960 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 74 [2019-11-21 13:00:40,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:40,962 INFO L225 Difference]: With dead ends: 155 [2019-11-21 13:00:40,962 INFO L226 Difference]: Without dead ends: 155 [2019-11-21 13:00:40,963 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 110 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=138, Invalid=1502, Unknown=0, NotChecked=0, Total=1640 [2019-11-21 13:00:40,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-11-21 13:00:40,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2019-11-21 13:00:40,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-11-21 13:00:40,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 160 transitions. [2019-11-21 13:00:40,968 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 160 transitions. Word has length 74 [2019-11-21 13:00:40,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:40,969 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 160 transitions. [2019-11-21 13:00:40,969 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-11-21 13:00:40,969 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 160 transitions. [2019-11-21 13:00:40,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-11-21 13:00:40,970 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:40,971 INFO L410 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1, 1, 1, 1] [2019-11-21 13:00:41,175 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:41,177 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:41,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:41,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1138687888, now seen corresponding path program 1 times [2019-11-21 13:00:41,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:41,178 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1832065719] [2019-11-21 13:00:41,178 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 13:00:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:41,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-21 13:00:41,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:41,627 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:41,627 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:41,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:00:41,867 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:41,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1832065719] [2019-11-21 13:00:41,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:41,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2019-11-21 13:00:41,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753256480] [2019-11-21 13:00:41,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 13:00:41,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:41,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 13:00:41,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-11-21 13:00:41,869 INFO L87 Difference]: Start difference. First operand 155 states and 160 transitions. Second operand 14 states. [2019-11-21 13:00:42,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:42,037 INFO L93 Difference]: Finished difference Result 161 states and 165 transitions. [2019-11-21 13:00:42,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 13:00:42,037 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 87 [2019-11-21 13:00:42,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:42,039 INFO L225 Difference]: With dead ends: 161 [2019-11-21 13:00:42,039 INFO L226 Difference]: Without dead ends: 155 [2019-11-21 13:00:42,040 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2019-11-21 13:00:42,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-11-21 13:00:42,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2019-11-21 13:00:42,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-11-21 13:00:42,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 159 transitions. [2019-11-21 13:00:42,045 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 159 transitions. Word has length 87 [2019-11-21 13:00:42,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:42,045 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 159 transitions. [2019-11-21 13:00:42,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 13:00:42,046 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 159 transitions. [2019-11-21 13:00:42,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-11-21 13:00:42,047 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:42,047 INFO L410 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:00:42,250 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:42,250 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:42,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:42,251 INFO L82 PathProgramCache]: Analyzing trace with hash 898009173, now seen corresponding path program 1 times [2019-11-21 13:00:42,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:42,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [732169277] [2019-11-21 13:00:42,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:42,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-21 13:00:42,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:42,809 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 13:00:42,809 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:00:42,813 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:00:42,814 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:00:42,814 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 13:00:43,501 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:43,501 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:43,952 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:43,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [732169277] [2019-11-21 13:00:43,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:43,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 16] imperfect sequences [] total 21 [2019-11-21 13:00:43,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011774180] [2019-11-21 13:00:43,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-21 13:00:43,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:43,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-21 13:00:43,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2019-11-21 13:00:43,954 INFO L87 Difference]: Start difference. First operand 155 states and 159 transitions. Second operand 22 states. [2019-11-21 13:00:46,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:46,313 INFO L93 Difference]: Finished difference Result 207 states and 224 transitions. [2019-11-21 13:00:46,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-21 13:00:46,314 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 100 [2019-11-21 13:00:46,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:46,315 INFO L225 Difference]: With dead ends: 207 [2019-11-21 13:00:46,315 INFO L226 Difference]: Without dead ends: 207 [2019-11-21 13:00:46,316 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 173 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2019-11-21 13:00:46,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2019-11-21 13:00:46,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 181. [2019-11-21 13:00:46,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2019-11-21 13:00:46,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 191 transitions. [2019-11-21 13:00:46,323 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 191 transitions. Word has length 100 [2019-11-21 13:00:46,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:46,324 INFO L462 AbstractCegarLoop]: Abstraction has 181 states and 191 transitions. [2019-11-21 13:00:46,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-21 13:00:46,324 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 191 transitions. [2019-11-21 13:00:46,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-11-21 13:00:46,325 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:46,325 INFO L410 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:00:46,527 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:46,528 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:46,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:46,528 INFO L82 PathProgramCache]: Analyzing trace with hash 898009174, now seen corresponding path program 1 times [2019-11-21 13:00:46,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:46,529 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [876024374] [2019-11-21 13:00:46,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:47,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 44 conjunts are in the unsatisfiable core [2019-11-21 13:00:47,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:47,220 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 13:00:47,221 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:00:47,227 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:00:47,227 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:00:47,227 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 13:00:47,846 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:47,846 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:50,256 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:50,256 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [876024374] [2019-11-21 13:00:50,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:50,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 18] imperfect sequences [] total 38 [2019-11-21 13:00:50,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293031897] [2019-11-21 13:00:50,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-11-21 13:00:50,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:50,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-11-21 13:00:50,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1373, Unknown=0, NotChecked=0, Total=1482 [2019-11-21 13:00:50,258 INFO L87 Difference]: Start difference. First operand 181 states and 191 transitions. Second operand 39 states. [2019-11-21 13:00:55,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:55,925 INFO L93 Difference]: Finished difference Result 179 states and 187 transitions. [2019-11-21 13:00:55,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-21 13:00:55,929 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 100 [2019-11-21 13:00:55,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:55,930 INFO L225 Difference]: With dead ends: 179 [2019-11-21 13:00:55,930 INFO L226 Difference]: Without dead ends: 179 [2019-11-21 13:00:55,931 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 156 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=157, Invalid=1913, Unknown=0, NotChecked=0, Total=2070 [2019-11-21 13:00:55,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-11-21 13:00:55,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2019-11-21 13:00:55,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-11-21 13:00:55,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 187 transitions. [2019-11-21 13:00:55,936 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 187 transitions. Word has length 100 [2019-11-21 13:00:55,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:55,937 INFO L462 AbstractCegarLoop]: Abstraction has 179 states and 187 transitions. [2019-11-21 13:00:55,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-11-21 13:00:55,937 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 187 transitions. [2019-11-21 13:00:55,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-11-21 13:00:55,938 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:55,939 INFO L410 BasicCegarLoop]: trace histogram [16, 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, 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, 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 13:00:56,144 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:56,144 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:56,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:56,145 INFO L82 PathProgramCache]: Analyzing trace with hash 25731743, now seen corresponding path program 1 times [2019-11-21 13:00:56,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:56,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1241891145] [2019-11-21 13:00:56,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 24 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:56,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-21 13:00:56,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:56,652 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:56,653 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:56,743 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:00:56,909 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:56,909 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1241891145] [2019-11-21 13:00:56,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:56,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2019-11-21 13:00:56,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418056659] [2019-11-21 13:00:56,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 13:00:56,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:56,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 13:00:56,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-11-21 13:00:56,911 INFO L87 Difference]: Start difference. First operand 179 states and 187 transitions. Second operand 14 states. [2019-11-21 13:00:57,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:00:57,115 INFO L93 Difference]: Finished difference Result 183 states and 189 transitions. [2019-11-21 13:00:57,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 13:00:57,115 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 107 [2019-11-21 13:00:57,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:00:57,117 INFO L225 Difference]: With dead ends: 183 [2019-11-21 13:00:57,117 INFO L226 Difference]: Without dead ends: 177 [2019-11-21 13:00:57,117 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2019-11-21 13:00:57,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2019-11-21 13:00:57,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2019-11-21 13:00:57,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2019-11-21 13:00:57,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 183 transitions. [2019-11-21 13:00:57,123 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 183 transitions. Word has length 107 [2019-11-21 13:00:57,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:00:57,124 INFO L462 AbstractCegarLoop]: Abstraction has 177 states and 183 transitions. [2019-11-21 13:00:57,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 13:00:57,124 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 183 transitions. [2019-11-21 13:00:57,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-11-21 13:00:57,126 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:00:57,126 INFO L410 BasicCegarLoop]: trace histogram [16, 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, 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, 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 13:00:57,333 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:57,333 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:00:57,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:00:57,334 INFO L82 PathProgramCache]: Analyzing trace with hash -600857835, now seen corresponding path program 1 times [2019-11-21 13:00:57,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:00:57,334 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1491652527] [2019-11-21 13:00:57,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:00:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:00:57,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 46 conjunts are in the unsatisfiable core [2019-11-21 13:00:57,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:00:57,928 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 13:00:57,928 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:00:57,931 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:00:57,931 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:00:57,932 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 13:00:58,854 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:58,854 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:00:59,397 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:00:59,398 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1491652527] [2019-11-21 13:00:59,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:00:59,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25, 20] imperfect sequences [] total 25 [2019-11-21 13:00:59,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810458592] [2019-11-21 13:00:59,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-21 13:00:59,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:00:59,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-21 13:00:59,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2019-11-21 13:00:59,400 INFO L87 Difference]: Start difference. First operand 177 states and 183 transitions. Second operand 26 states. [2019-11-21 13:01:02,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:01:02,184 INFO L93 Difference]: Finished difference Result 210 states and 226 transitions. [2019-11-21 13:01:02,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-11-21 13:01:02,184 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 113 [2019-11-21 13:01:02,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:01:02,186 INFO L225 Difference]: With dead ends: 210 [2019-11-21 13:01:02,186 INFO L226 Difference]: Without dead ends: 210 [2019-11-21 13:01:02,186 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 190 SyntacticMatches, 11 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=112, Invalid=1010, Unknown=0, NotChecked=0, Total=1122 [2019-11-21 13:01:02,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2019-11-21 13:01:02,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 183. [2019-11-21 13:01:02,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-11-21 13:01:02,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 193 transitions. [2019-11-21 13:01:02,200 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 193 transitions. Word has length 113 [2019-11-21 13:01:02,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:01:02,200 INFO L462 AbstractCegarLoop]: Abstraction has 183 states and 193 transitions. [2019-11-21 13:01:02,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-21 13:01:02,201 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 193 transitions. [2019-11-21 13:01:02,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-11-21 13:01:02,201 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:01:02,202 INFO L410 BasicCegarLoop]: trace histogram [16, 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, 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, 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 13:01:02,403 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:01:02,407 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:01:02,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:01:02,408 INFO L82 PathProgramCache]: Analyzing trace with hash -600857834, now seen corresponding path program 1 times [2019-11-21 13:01:02,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:01:02,408 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [57585097] [2019-11-21 13:01:02,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 26 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:01:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:01:03,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 56 conjunts are in the unsatisfiable core [2019-11-21 13:01:03,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:01:03,190 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 13:01:03,190 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:01:03,196 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:01:03,196 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:01:03,197 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 13:01:04,202 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:01:04,202 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:01:07,480 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:01:07,480 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [57585097] [2019-11-21 13:01:07,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:01:07,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25, 22] imperfect sequences [] total 46 [2019-11-21 13:01:07,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527605555] [2019-11-21 13:01:07,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2019-11-21 13:01:07,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:01:07,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2019-11-21 13:01:07,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=2029, Unknown=0, NotChecked=0, Total=2162 [2019-11-21 13:01:07,483 INFO L87 Difference]: Start difference. First operand 183 states and 193 transitions. Second operand 47 states. [2019-11-21 13:01:14,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:01:14,685 INFO L93 Difference]: Finished difference Result 181 states and 190 transitions. [2019-11-21 13:01:14,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-21 13:01:14,685 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 113 [2019-11-21 13:01:14,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:01:14,687 INFO L225 Difference]: With dead ends: 181 [2019-11-21 13:01:14,687 INFO L226 Difference]: Without dead ends: 181 [2019-11-21 13:01:14,688 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 172 SyntacticMatches, 8 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=195, Invalid=2885, Unknown=0, NotChecked=0, Total=3080 [2019-11-21 13:01:14,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2019-11-21 13:01:14,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2019-11-21 13:01:14,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2019-11-21 13:01:14,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 190 transitions. [2019-11-21 13:01:14,693 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 190 transitions. Word has length 113 [2019-11-21 13:01:14,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:01:14,694 INFO L462 AbstractCegarLoop]: Abstraction has 181 states and 190 transitions. [2019-11-21 13:01:14,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 47 states. [2019-11-21 13:01:14,694 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 190 transitions. [2019-11-21 13:01:14,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-11-21 13:01:14,695 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:01:14,695 INFO L410 BasicCegarLoop]: trace histogram [16, 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, 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, 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, 1] [2019-11-21 13:01:14,901 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:01:14,901 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:01:14,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:01:14,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1268172578, now seen corresponding path program 1 times [2019-11-21 13:01:14,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:01:14,903 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [666693305] [2019-11-21 13:01:14,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 27 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:01:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:01:15,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-21 13:01:15,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:01:16,538 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:01:16,538 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:01:17,468 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:01:17,468 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [666693305] [2019-11-21 13:01:17,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:01:17,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22, 21] imperfect sequences [] total 42 [2019-11-21 13:01:17,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682435074] [2019-11-21 13:01:17,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-11-21 13:01:17,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:01:17,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-11-21 13:01:17,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1683, Unknown=0, NotChecked=0, Total=1806 [2019-11-21 13:01:17,470 INFO L87 Difference]: Start difference. First operand 181 states and 190 transitions. Second operand 43 states. [2019-11-21 13:01:21,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:01:21,044 INFO L93 Difference]: Finished difference Result 180 states and 189 transitions. [2019-11-21 13:01:21,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-21 13:01:21,044 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 116 [2019-11-21 13:01:21,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:01:21,046 INFO L225 Difference]: With dead ends: 180 [2019-11-21 13:01:21,046 INFO L226 Difference]: Without dead ends: 180 [2019-11-21 13:01:21,048 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 186 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=179, Invalid=2371, Unknown=0, NotChecked=0, Total=2550 [2019-11-21 13:01:21,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2019-11-21 13:01:21,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2019-11-21 13:01:21,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-11-21 13:01:21,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 189 transitions. [2019-11-21 13:01:21,054 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 189 transitions. Word has length 116 [2019-11-21 13:01:21,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:01:21,054 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 189 transitions. [2019-11-21 13:01:21,055 INFO L463 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-11-21 13:01:21,055 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 189 transitions. [2019-11-21 13:01:21,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-11-21 13:01:21,056 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:01:21,056 INFO L410 BasicCegarLoop]: trace histogram [16, 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, 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, 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, 1, 1, 1, 1] [2019-11-21 13:01:21,262 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:01:21,262 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:01:21,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:01:21,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1597246489, now seen corresponding path program 1 times [2019-11-21 13:01:21,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:01:21,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1694363908] [2019-11-21 13:01:21,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 28 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:01:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:01:22,114 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 82 conjunts are in the unsatisfiable core [2019-11-21 13:01:22,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:01:22,600 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 23 [2019-11-21 13:01:22,603 INFO L343 Elim1Store]: treesize reduction 548, result has 6.0 percent of original size [2019-11-21 13:01:22,604 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 18 case distinctions, treesize of input 183 treesize of output 113 [2019-11-21 13:01:22,605 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:01:22,638 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:01:22,638 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:01:22,639 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:183, output treesize:167 [2019-11-21 13:01:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2019-11-21 13:01:22,777 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:01:23,154 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2019-11-21 13:01:24,850 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-11-21 13:01:25,906 WARN L192 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2019-11-21 13:01:26,853 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2019-11-21 13:01:28,002 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2019-11-21 13:01:29,013 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-11-21 13:01:29,226 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-11-21 13:01:29,708 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:01:29,708 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1694363908] [2019-11-21 13:01:29,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 13:01:29,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 25 [2019-11-21 13:01:29,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334470458] [2019-11-21 13:01:29,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-21 13:01:29,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:01:29,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-21 13:01:29,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=551, Unknown=0, NotChecked=0, Total=600 [2019-11-21 13:01:29,710 INFO L87 Difference]: Start difference. First operand 180 states and 189 transitions. Second operand 11 states. [2019-11-21 13:01:40,508 WARN L192 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-11-21 13:01:48,913 WARN L192 SmtUtils]: Spent 3.03 s on a formula simplification that was a NOOP. DAG size: 116 [2019-11-21 13:01:52,623 WARN L192 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 89 [2019-11-21 13:01:57,162 WARN L192 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 94 [2019-11-21 13:02:01,577 WARN L192 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 106 [2019-11-21 13:02:05,061 WARN L192 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 93 [2019-11-21 13:02:08,316 WARN L192 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 97 [2019-11-21 13:02:17,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:02:17,381 INFO L93 Difference]: Finished difference Result 142 states and 143 transitions. [2019-11-21 13:02:17,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 13:02:17,384 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 119 [2019-11-21 13:02:17,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:02:17,385 INFO L225 Difference]: With dead ends: 142 [2019-11-21 13:02:17,386 INFO L226 Difference]: Without dead ends: 142 [2019-11-21 13:02:17,386 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 212 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 31.3s TimeCoverageRelationStatistics Valid=97, Invalid=959, Unknown=0, NotChecked=0, Total=1056 [2019-11-21 13:02:17,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-11-21 13:02:17,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2019-11-21 13:02:17,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-11-21 13:02:17,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 143 transitions. [2019-11-21 13:02:17,390 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 143 transitions. Word has length 119 [2019-11-21 13:02:17,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:02:17,391 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 143 transitions. [2019-11-21 13:02:17,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-21 13:02:17,391 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 143 transitions. [2019-11-21 13:02:17,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-11-21 13:02:17,392 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:02:17,392 INFO L410 BasicCegarLoop]: trace histogram [16, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1] [2019-11-21 13:02:17,598 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:02:17,599 INFO L410 AbstractCegarLoop]: === Iteration 28 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:02:17,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:02:17,600 INFO L82 PathProgramCache]: Analyzing trace with hash -218371375, now seen corresponding path program 1 times [2019-11-21 13:02:17,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:02:17,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1506864699] [2019-11-21 13:02:17,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 29 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:02:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:02:18,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 38 conjunts are in the unsatisfiable core [2019-11-21 13:02:18,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:02:18,245 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 13:02:18,245 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:02:18,250 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:02:18,250 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:02:18,251 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 13:02:18,751 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-21 13:02:18,752 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:02:19,181 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:02:19,182 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 13:02:19,188 INFO L168 Benchmark]: Toolchain (without parser) took 141403.96 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 554.7 MB). Free memory was 955.0 MB in the beginning and 822.1 MB in the end (delta: 132.9 MB). Peak memory consumption was 687.6 MB. Max. memory is 11.5 GB. [2019-11-21 13:02:19,189 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 13:02:19,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 861.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -155.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-21 13:02:19,190 INFO L168 Benchmark]: Boogie Preprocessor took 112.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 13:02:19,190 INFO L168 Benchmark]: RCFGBuilder took 1629.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 994.8 MB in the end (delta: 103.9 MB). Peak memory consumption was 103.9 MB. Max. memory is 11.5 GB. [2019-11-21 13:02:19,190 INFO L168 Benchmark]: TraceAbstraction took 138794.88 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 404.2 MB). Free memory was 994.8 MB in the beginning and 822.1 MB in the end (delta: 172.7 MB). Peak memory consumption was 577.0 MB. Max. memory is 11.5 GB. [2019-11-21 13:02:19,191 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 861.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -155.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 112.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1629.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 994.8 MB in the end (delta: 103.9 MB). Peak memory consumption was 103.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 138794.88 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 404.2 MB). Free memory was 994.8 MB in the beginning and 822.1 MB in the end (delta: 172.7 MB). Peak memory consumption was 577.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...