./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47a446ab72b0e2eb3d0b617f2eb4b8d836905a9e --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 12:47:11,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 12:47:11,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 12:47:11,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 12:47:11,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 12:47:11,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 12:47:11,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 12:47:11,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 12:47:11,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 12:47:11,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 12:47:11,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 12:47:11,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 12:47:11,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 12:47:11,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 12:47:11,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 12:47:11,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 12:47:11,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 12:47:11,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 12:47:11,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 12:47:11,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 12:47:11,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 12:47:11,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 12:47:11,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 12:47:11,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 12:47:11,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 12:47:11,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 12:47:11,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 12:47:11,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 12:47:11,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 12:47:11,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 12:47:11,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 12:47:11,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 12:47:11,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 12:47:11,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 12:47:11,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 12:47:11,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 12:47:11,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 12:47:11,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 12:47:11,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 12:47:11,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 12:47:11,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 12:47:11,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 12:47:11,157 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 12:47:11,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 12:47:11,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 12:47:11,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 12:47:11,159 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 12:47:11,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 12:47:11,159 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 12:47:11,160 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 12:47:11,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 12:47:11,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 12:47:11,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 12:47:11,161 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 12:47:11,161 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 12:47:11,161 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 12:47:11,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 12:47:11,162 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 12:47:11,162 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 12:47:11,162 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 12:47:11,163 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 12:47:11,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 12:47:11,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 12:47:11,164 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 12:47:11,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 12:47:11,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:47:11,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 12:47:11,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 12:47:11,165 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 12:47:11,165 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 12:47:11,166 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 12:47:11,166 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 -> 47a446ab72b0e2eb3d0b617f2eb4b8d836905a9e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 12:47:11,464 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 12:47:11,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 12:47:11,480 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 12:47:11,482 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 12:47:11,482 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 12:47:11,483 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2019-11-21 12:47:11,556 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c74cdd9/122cd86d65cf400093eb92d05028e089/FLAG554a00a68 [2019-11-21 12:47:12,151 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 12:47:12,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2019-11-21 12:47:12,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c74cdd9/122cd86d65cf400093eb92d05028e089/FLAG554a00a68 [2019-11-21 12:47:12,403 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c74cdd9/122cd86d65cf400093eb92d05028e089 [2019-11-21 12:47:12,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 12:47:12,407 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 12:47:12,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 12:47:12,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 12:47:12,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 12:47:12,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:47:12" (1/1) ... [2019-11-21 12:47:12,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f265d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:12, skipping insertion in model container [2019-11-21 12:47:12,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:47:12" (1/1) ... [2019-11-21 12:47:12,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 12:47:12,467 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:47:12,867 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 12:47:12,868 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 12:47:12,868 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:47:12,881 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 12:47:12,881 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 12:47:12,882 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:47:12,884 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 12:47:12,884 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 12:47:12,885 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:47:12,887 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 12:47:12,888 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 12:47:12,888 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:47:12,915 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 12:47:12,916 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 12:47:12,916 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:47:12,927 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 12:47:12,927 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [766] [2019-11-21 12:47:12,927 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:47:12,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:47:12,957 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 12:47:12,968 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:47:13,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:47:13,028 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 12:47:13,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:47:13,165 INFO L205 MainTranslator]: Completed translation [2019-11-21 12:47:13,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:13 WrapperNode [2019-11-21 12:47:13,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 12:47:13,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 12:47:13,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 12:47:13,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 12:47:13,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:13" (1/1) ... [2019-11-21 12:47:13,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:13" (1/1) ... [2019-11-21 12:47:13,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:13" (1/1) ... [2019-11-21 12:47:13,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:13" (1/1) ... [2019-11-21 12:47:13,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:13" (1/1) ... [2019-11-21 12:47:13,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:13" (1/1) ... [2019-11-21 12:47:13,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:13" (1/1) ... [2019-11-21 12:47:13,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 12:47:13,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 12:47:13,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 12:47:13,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 12:47:13,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:13" (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 12:47:13,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 12:47:13,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 12:47:13,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:47:13,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 12:47:13,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 12:47:13,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 12:47:13,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 12:47:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 12:47:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 12:47:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 12:47:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 12:47:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 12:47:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:47:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 12:47:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 12:47:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 12:47:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 12:47:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 12:47:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 12:47:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 12:47:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 12:47:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 12:47:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 12:47:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 12:47:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 12:47:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 12:47:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 12:47:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 12:47:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 12:47:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 12:47:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 12:47:13,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 12:47:13,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 12:47:13,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 12:47:13,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 12:47:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 12:47:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 12:47:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 12:47:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 12:47:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 12:47:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 12:47:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2019-11-21 12:47:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2019-11-21 12:47:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure probe1_6 [2019-11-21 12:47:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_2_6 [2019-11-21 12:47:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 12:47:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 12:47:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 12:47:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 12:47:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 12:47:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 12:47:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 12:47:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 12:47:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 12:47:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 12:47:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 12:47:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 12:47:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 12:47:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 12:47:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 12:47:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 12:47:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 12:47:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 12:47:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 12:47:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 12:47:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 12:47:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 12:47:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 12:47:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 12:47:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 12:47:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 12:47:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 12:47:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 12:47:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 12:47:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 12:47:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 12:47:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 12:47:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 12:47:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 12:47:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 12:47:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 12:47:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 12:47:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 12:47:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 12:47:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 12:47:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 12:47:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 12:47:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 12:47:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 12:47:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 12:47:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 12:47:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 12:47:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 12:47:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 12:47:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 12:47:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 12:47:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 12:47:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 12:47:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 12:47:13,376 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 12:47:13,376 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 12:47:13,376 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 12:47:13,376 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 12:47:13,377 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 12:47:13,377 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 12:47:13,377 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 12:47:13,377 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 12:47:13,377 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 12:47:13,378 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 12:47:13,378 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 12:47:13,378 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 12:47:13,378 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 12:47:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 12:47:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 12:47:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 12:47:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 12:47:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 12:47:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 12:47:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 12:47:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 12:47:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 12:47:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 12:47:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 12:47:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 12:47:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 12:47:13,383 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 12:47:13,383 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 12:47:13,383 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 12:47:13,383 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 12:47:13,383 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 12:47:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 12:47:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 12:47:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 12:47:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 12:47:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 12:47:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 12:47:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 12:47:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 12:47:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 12:47:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 12:47:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 12:47:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 12:47:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 12:47:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 12:47:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 12:47:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 12:47:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 12:47:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 12:47:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 12:47:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 12:47:13,387 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 12:47:13,387 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 12:47:13,387 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 12:47:13,387 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 12:47:13,388 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 12:47:13,388 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 12:47:13,388 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 12:47:13,389 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 12:47:13,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 12:47:13,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 12:47:13,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 12:47:13,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 12:47:13,389 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 12:47:13,389 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 12:47:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 12:47:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 12:47:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 12:47:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 12:47:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:47:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 12:47:13,391 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 12:47:13,391 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 12:47:13,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 12:47:13,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 12:47:13,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 12:47:13,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 12:47:13,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 12:47:13,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 12:47:13,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 12:47:13,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 12:47:13,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 12:47:13,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 12:47:13,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 12:47:13,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 12:47:13,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 12:47:13,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 12:47:13,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 12:47:13,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 12:47:13,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 12:47:13,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 12:47:13,396 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:47:13,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 12:47:13,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 12:47:13,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 12:47:13,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 12:47:13,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 12:47:13,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 12:47:13,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 12:47:13,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 12:47:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 12:47:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 12:47:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 12:47:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 12:47:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 12:47:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 12:47:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2019-11-21 12:47:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2019-11-21 12:47:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure probe1_6 [2019-11-21 12:47:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_2_6 [2019-11-21 12:47:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 12:47:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 12:47:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 12:47:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 12:47:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 12:47:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 12:47:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 12:47:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 12:47:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 12:47:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 12:47:14,092 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:47:14,535 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:47:14,999 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 12:47:15,000 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 12:47:15,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:47:15 BoogieIcfgContainer [2019-11-21 12:47:15,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 12:47:15,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 12:47:15,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 12:47:15,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 12:47:15,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:47:12" (1/3) ... [2019-11-21 12:47:15,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71da908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:47:15, skipping insertion in model container [2019-11-21 12:47:15,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:13" (2/3) ... [2019-11-21 12:47:15,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71da908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:47:15, skipping insertion in model container [2019-11-21 12:47:15,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:47:15" (3/3) ... [2019-11-21 12:47:15,013 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test6_3.i [2019-11-21 12:47:15,023 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 12:47:15,033 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 78 error locations. [2019-11-21 12:47:15,045 INFO L249 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2019-11-21 12:47:15,073 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 12:47:15,074 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 12:47:15,075 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 12:47:15,076 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 12:47:15,076 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 12:47:15,076 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 12:47:15,076 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 12:47:15,077 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 12:47:15,101 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2019-11-21 12:47:15,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 12:47:15,114 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:47:15,116 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:47:15,117 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:47:15,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:47:15,131 INFO L82 PathProgramCache]: Analyzing trace with hash -989097340, now seen corresponding path program 1 times [2019-11-21 12:47:15,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:47:15,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1011928681] [2019-11-21 12:47:15,147 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 12:47:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:47:15,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:47:15,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:47:15,618 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 12:47:15,621 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:47:15,900 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 12:47:15,903 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1011928681] [2019-11-21 12:47:15,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:47:15,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 12:47:15,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655738589] [2019-11-21 12:47:15,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:47:15,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:47:15,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:47:15,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:47:15,942 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 5 states. [2019-11-21 12:47:16,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:47:16,082 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2019-11-21 12:47:16,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:47:16,084 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-21 12:47:16,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:47:16,101 INFO L225 Difference]: With dead ends: 76 [2019-11-21 12:47:16,101 INFO L226 Difference]: Without dead ends: 73 [2019-11-21 12:47:16,104 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:47:16,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-11-21 12:47:16,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2019-11-21 12:47:16,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-21 12:47:16,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2019-11-21 12:47:16,193 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 20 [2019-11-21 12:47:16,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:47:16,193 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2019-11-21 12:47:16,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:47:16,193 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2019-11-21 12:47:16,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 12:47:16,196 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:47:16,196 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:47:16,399 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:47:16,399 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:47:16,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:47:16,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1185610845, now seen corresponding path program 1 times [2019-11-21 12:47:16,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:47:16,401 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2002112108] [2019-11-21 12:47:16,402 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 12:47:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:47:16,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-21 12:47:16,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:47:16,828 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 12:47:16,829 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 12:47:16,830 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:47:16,872 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-21 12:47:16,873 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:16,877 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:47:16,878 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-21 12:47:16,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:16,908 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-21 12:47:16,909 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:47:16,911 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:47:16,911 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:47:16,912 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2019-11-21 12:47:16,921 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 12:47:16,921 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:47:16,987 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:47:16,993 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2019-11-21 12:47:16,994 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:47:17,001 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:47:17,001 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:47:17,002 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:12 [2019-11-21 12:47:17,023 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 12:47:17,023 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2002112108] [2019-11-21 12:47:17,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:47:17,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-21 12:47:17,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498181021] [2019-11-21 12:47:17,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:47:17,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:47:17,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:47:17,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:47:17,027 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 5 states. [2019-11-21 12:47:17,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:47:17,275 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2019-11-21 12:47:17,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:47:17,275 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-21 12:47:17,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:47:17,278 INFO L225 Difference]: With dead ends: 92 [2019-11-21 12:47:17,278 INFO L226 Difference]: Without dead ends: 89 [2019-11-21 12:47:17,282 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:47:17,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-21 12:47:17,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2019-11-21 12:47:17,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-21 12:47:17,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2019-11-21 12:47:17,303 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 20 [2019-11-21 12:47:17,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:47:17,303 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2019-11-21 12:47:17,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:47:17,304 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2019-11-21 12:47:17,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 12:47:17,307 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:47:17,307 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:47:17,510 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:47:17,511 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:47:17,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:47:17,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1185610844, now seen corresponding path program 1 times [2019-11-21 12:47:17,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:47:17,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [727217494] [2019-11-21 12:47:17,513 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 12:47:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:47:17,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-21 12:47:17,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:47:17,800 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:47:17,800 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-21 12:47:17,801 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:47:17,828 INFO L567 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2019-11-21 12:47:17,829 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:47:17,829 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2019-11-21 12:47:17,852 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-21 12:47:17,853 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:47:17,859 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:47:17,859 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:47:17,860 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:7 [2019-11-21 12:47:17,880 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 12:47:17,880 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:47:18,025 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-21 12:47:18,039 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2019-11-21 12:47:18,041 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:47:18,074 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:47:18,075 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:47:18,075 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:32 [2019-11-21 12:47:18,144 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 12:47:18,145 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [727217494] [2019-11-21 12:47:18,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:47:18,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-21 12:47:18,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157121312] [2019-11-21 12:47:18,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:47:18,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:47:18,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:47:18,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:47:18,146 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand 6 states. [2019-11-21 12:47:18,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:47:18,373 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2019-11-21 12:47:18,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:47:18,374 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-11-21 12:47:18,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:47:18,375 INFO L225 Difference]: With dead ends: 110 [2019-11-21 12:47:18,375 INFO L226 Difference]: Without dead ends: 100 [2019-11-21 12:47:18,376 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:47:18,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-11-21 12:47:18,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2019-11-21 12:47:18,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-11-21 12:47:18,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2019-11-21 12:47:18,386 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 20 [2019-11-21 12:47:18,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:47:18,386 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2019-11-21 12:47:18,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:47:18,387 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2019-11-21 12:47:18,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 12:47:18,387 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:47:18,388 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:47:18,588 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:47:18,589 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:47:18,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:47:18,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1700031224, now seen corresponding path program 1 times [2019-11-21 12:47:18,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:47:18,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1073433176] [2019-11-21 12:47:18,592 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 12:47:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:47:18,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:47:18,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:47:18,855 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 12:47:18,855 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:47:18,902 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 12:47:18,903 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1073433176] [2019-11-21 12:47:18,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:47:18,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 12:47:18,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001196347] [2019-11-21 12:47:18,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:47:18,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:47:18,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:47:18,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:47:18,904 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand 5 states. [2019-11-21 12:47:18,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:47:18,935 INFO L93 Difference]: Finished difference Result 89 states and 101 transitions. [2019-11-21 12:47:18,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:47:18,937 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 12:47:18,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:47:18,941 INFO L225 Difference]: With dead ends: 89 [2019-11-21 12:47:18,941 INFO L226 Difference]: Without dead ends: 89 [2019-11-21 12:47:18,941 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:47:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-21 12:47:18,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2019-11-21 12:47:18,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-11-21 12:47:18,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 101 transitions. [2019-11-21 12:47:18,958 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 101 transitions. Word has length 22 [2019-11-21 12:47:18,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:47:18,959 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 101 transitions. [2019-11-21 12:47:18,959 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:47:18,959 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 101 transitions. [2019-11-21 12:47:18,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 12:47:18,961 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:47:18,961 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:47:19,168 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:47:19,169 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:47:19,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:47:19,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1161359959, now seen corresponding path program 1 times [2019-11-21 12:47:19,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:47:19,170 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [383969818] [2019-11-21 12:47:19,170 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 12:47:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:47:19,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 12:47:19,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:47:19,526 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 12:47:19,527 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:47:19,632 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 12:47:19,632 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [383969818] [2019-11-21 12:47:19,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:47:19,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-21 12:47:19,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042161144] [2019-11-21 12:47:19,633 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 12:47:19,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:47:19,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 12:47:19,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 12:47:19,634 INFO L87 Difference]: Start difference. First operand 89 states and 101 transitions. Second operand 9 states. [2019-11-21 12:47:19,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:47:19,796 INFO L93 Difference]: Finished difference Result 88 states and 99 transitions. [2019-11-21 12:47:19,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:47:19,796 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2019-11-21 12:47:19,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:47:19,797 INFO L225 Difference]: With dead ends: 88 [2019-11-21 12:47:19,798 INFO L226 Difference]: Without dead ends: 88 [2019-11-21 12:47:19,798 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 12:47:19,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-11-21 12:47:19,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-11-21 12:47:19,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-21 12:47:19,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2019-11-21 12:47:19,811 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 23 [2019-11-21 12:47:19,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:47:19,811 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2019-11-21 12:47:19,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 12:47:19,811 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2019-11-21 12:47:19,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-21 12:47:19,812 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:47:19,812 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:47:20,016 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:47:20,017 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:47:20,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:47:20,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1642419926, now seen corresponding path program 1 times [2019-11-21 12:47:20,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:47:20,019 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [111929254] [2019-11-21 12:47:20,020 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 12:47:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:47:20,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:47:20,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:47:20,289 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 12:47:20,289 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:47:20,292 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:47:20,292 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:47:20,292 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:47:20,344 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 12:47:20,344 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:47:20,405 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 12:47:20,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [111929254] [2019-11-21 12:47:20,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:47:20,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2019-11-21 12:47:20,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519951794] [2019-11-21 12:47:20,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:47:20,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:47:20,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:47:20,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:47:20,408 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand 6 states. [2019-11-21 12:47:20,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:47:20,596 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2019-11-21 12:47:20,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:47:20,597 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-21 12:47:20,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:47:20,598 INFO L225 Difference]: With dead ends: 91 [2019-11-21 12:47:20,598 INFO L226 Difference]: Without dead ends: 91 [2019-11-21 12:47:20,599 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:47:20,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-21 12:47:20,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2019-11-21 12:47:20,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-21 12:47:20,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2019-11-21 12:47:20,606 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 24 [2019-11-21 12:47:20,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:47:20,606 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2019-11-21 12:47:20,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:47:20,606 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2019-11-21 12:47:20,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-21 12:47:20,607 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:47:20,607 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:47:20,816 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:47:20,817 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:47:20,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:47:20,817 INFO L82 PathProgramCache]: Analyzing trace with hash 2146988745, now seen corresponding path program 1 times [2019-11-21 12:47:20,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:47:20,818 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2033152954] [2019-11-21 12:47:20,819 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 12:47:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:47:21,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:47:21,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:47:21,086 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 12:47:21,086 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:47:21,125 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 12:47:21,125 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2033152954] [2019-11-21 12:47:21,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:47:21,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-21 12:47:21,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684397562] [2019-11-21 12:47:21,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:47:21,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:47:21,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:47:21,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:47:21,128 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand 6 states. [2019-11-21 12:47:21,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:47:21,178 INFO L93 Difference]: Finished difference Result 78 states and 83 transitions. [2019-11-21 12:47:21,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:47:21,179 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-21 12:47:21,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:47:21,180 INFO L225 Difference]: With dead ends: 78 [2019-11-21 12:47:21,181 INFO L226 Difference]: Without dead ends: 77 [2019-11-21 12:47:21,181 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:47:21,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-11-21 12:47:21,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2019-11-21 12:47:21,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-11-21 12:47:21,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2019-11-21 12:47:21,187 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 24 [2019-11-21 12:47:21,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:47:21,188 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2019-11-21 12:47:21,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:47:21,188 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2019-11-21 12:47:21,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 12:47:21,189 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:47:21,189 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:47:21,391 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:47:21,393 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:47:21,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:47:21,394 INFO L82 PathProgramCache]: Analyzing trace with hash -514884290, now seen corresponding path program 1 times [2019-11-21 12:47:21,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:47:21,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [765652433] [2019-11-21 12:47:21,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 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 12:47:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:47:21,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 12:47:21,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:47:21,750 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 12:47:21,750 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 12:47:21,751 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:47:21,806 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-21 12:47:21,807 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:21,808 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:47:21,809 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-21 12:47:21,809 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:21,896 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:47:21,896 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-21 12:47:21,897 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:47:21,914 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 12:47:21,915 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:47:21,915 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 12:47:22,067 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 12:47:22,068 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:47:24,492 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 12:47:24,495 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [765652433] [2019-11-21 12:47:24,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:47:24,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2019-11-21 12:47:24,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538291866] [2019-11-21 12:47:24,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 12:47:24,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:47:24,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 12:47:24,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=146, Unknown=1, NotChecked=0, Total=182 [2019-11-21 12:47:24,500 INFO L87 Difference]: Start difference. First operand 75 states and 81 transitions. Second operand 14 states. [2019-11-21 12:47:25,094 WARN L192 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-11-21 12:47:25,624 WARN L192 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2019-11-21 12:47:26,046 WARN L192 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2019-11-21 12:47:32,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:47:32,805 INFO L93 Difference]: Finished difference Result 80 states and 82 transitions. [2019-11-21 12:47:32,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 12:47:32,807 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2019-11-21 12:47:32,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:47:32,809 INFO L225 Difference]: With dead ends: 80 [2019-11-21 12:47:32,809 INFO L226 Difference]: Without dead ends: 80 [2019-11-21 12:47:32,810 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 38 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=98, Invalid=281, Unknown=1, NotChecked=0, Total=380 [2019-11-21 12:47:32,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-11-21 12:47:32,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2019-11-21 12:47:32,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-21 12:47:32,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2019-11-21 12:47:32,815 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 28 [2019-11-21 12:47:32,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:47:32,816 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2019-11-21 12:47:32,816 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 12:47:32,816 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2019-11-21 12:47:32,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 12:47:32,817 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:47:32,817 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:47:33,018 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:47:33,019 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:47:33,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:47:33,020 INFO L82 PathProgramCache]: Analyzing trace with hash -514884289, now seen corresponding path program 1 times [2019-11-21 12:47:33,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:47:33,021 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [247722022] [2019-11-21 12:47:33,021 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 12:47:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:47:33,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-21 12:47:33,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:47:33,318 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:47:33,319 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-21 12:47:33,319 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:47:33,353 INFO L567 ElimStorePlain]: treesize reduction 10, result has 75.0 percent of original size [2019-11-21 12:47:33,412 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 12:47:33,412 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 12:47:33,413 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:47:33,468 INFO L567 ElimStorePlain]: treesize reduction 10, result has 80.0 percent of original size [2019-11-21 12:47:33,469 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:47:33,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:33,472 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:47:33,472 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:40 [2019-11-21 12:47:33,472 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:47:33,473 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:33,491 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:47:33,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:33,512 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:47:33,513 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:33,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:47:33,540 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:33,566 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:47:33,567 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:33,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:33,590 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:47:33,727 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 28 [2019-11-21 12:47:35,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:35,900 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:47:35,900 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2019-11-21 12:47:35,901 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:47:35,918 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:47:35,919 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 36 [2019-11-21 12:47:35,919 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:47:35,967 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:47:35,968 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 52 [2019-11-21 12:47:35,969 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-21 12:47:36,074 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 17 [2019-11-21 12:47:36,074 INFO L567 ElimStorePlain]: treesize reduction 57, result has 26.9 percent of original size [2019-11-21 12:47:36,078 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-21 12:47:36,079 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-21 12:47:36,090 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:47:36,091 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:47:36,091 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:103, output treesize:11 [2019-11-21 12:47:36,242 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 12:47:36,242 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:47:36,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:38,105 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:47:38,105 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:47:38,105 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:38,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:38,113 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:47:38,113 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:38,114 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:47:42,753 WARN L192 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-21 12:47:42,759 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:47:44,179 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 12:47:44,179 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [247722022] [2019-11-21 12:47:44,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:47:44,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2019-11-21 12:47:44,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373213542] [2019-11-21 12:47:44,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-21 12:47:44,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:47:44,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-21 12:47:44,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=169, Unknown=3, NotChecked=0, Total=210 [2019-11-21 12:47:44,181 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 15 states. [2019-11-21 12:47:56,798 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-11-21 12:48:00,897 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_probe1_6_~a.base_BEFORE_CALL_12 (_ BitVec 32)) (v_probe1_6_~a.offset_BEFORE_CALL_6 (_ BitVec 32))) (let ((.cse0 (bvadd v_probe1_6_~a.offset_BEFORE_CALL_6 (_ bv4 32)))) (or (exists ((|v_ldv_malloc_#t~malloc12.base_28| (_ BitVec 32)) (v_ldv_malloc_~size_41 (_ BitVec 32))) (and (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_28|) (_ bv0 1)) (not (bvsle (bvadd v_probe1_6_~a.offset_BEFORE_CALL_6 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_28| v_ldv_malloc_~size_41) v_probe1_6_~a.base_BEFORE_CALL_12))))) (not (bvsle (_ bv0 32) v_probe1_6_~a.offset_BEFORE_CALL_6)) (not (bvsle v_probe1_6_~a.offset_BEFORE_CALL_6 .cse0)) (bvsle .cse0 (select |c_#length| v_probe1_6_~a.base_BEFORE_CALL_12))))) (= |c_~#a6~0.offset| (_ bv0 32)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (exists ((|~#ldv_global_msg_list~0.base| (_ BitVec 32))) (and (or (= |c_~#a6~0.base| |~#ldv_global_msg_list~0.base|) (= (bvadd (select |c_#length| |~#ldv_global_msg_list~0.base|) (_ bv4294967288 32)) (_ bv0 32))) (= (bvadd (select |c_#valid| |~#ldv_global_msg_list~0.base|) (_ bv1 1)) (_ bv0 1)) (or (= (_ bv0 1) (select |c_#valid| (_ bv0 32))) (= (_ bv0 32) |~#ldv_global_msg_list~0.base|) (= |c_~#a6~0.base| (_ bv0 32))))) (= (_ bv1 1) (select |c_#valid| |c_~#a6~0.base|)) (exists ((v_prenex_4 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_4))) (= (_ bv4 32) (select |c_#length| |c_~#a6~0.base|))) is different from false [2019-11-21 12:48:21,280 WARN L192 SmtUtils]: Spent 8.12 s on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2019-11-21 12:48:23,494 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-11-21 12:48:57,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:48:57,459 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2019-11-21 12:48:57,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-21 12:48:57,460 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 28 [2019-11-21 12:48:57,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:48:57,461 INFO L225 Difference]: With dead ends: 73 [2019-11-21 12:48:57,461 INFO L226 Difference]: Without dead ends: 56 [2019-11-21 12:48:57,461 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 39.5s TimeCoverageRelationStatistics Valid=114, Invalid=385, Unknown=11, NotChecked=42, Total=552 [2019-11-21 12:48:57,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-21 12:48:57,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-11-21 12:48:57,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-21 12:48:57,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2019-11-21 12:48:57,467 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 28 [2019-11-21 12:48:57,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:48:57,467 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2019-11-21 12:48:57,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-21 12:48:57,468 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2019-11-21 12:48:57,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-21 12:48:57,469 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:48:57,469 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 12:48:57,672 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:48:57,673 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:48:57,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:48:57,674 INFO L82 PathProgramCache]: Analyzing trace with hash -441238595, now seen corresponding path program 1 times [2019-11-21 12:48:57,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:48:57,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [903308461] [2019-11-21 12:48:57,675 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 12:48:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:48:57,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-21 12:48:57,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:48:58,029 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 12:48:58,029 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 12:48:58,030 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:48:58,061 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-21 12:48:58,062 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:48:58,063 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:48:58,063 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-21 12:48:58,064 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:48:58,095 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-21 12:48:58,095 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:48:58,098 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:48:58,098 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:48:58,099 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2019-11-21 12:48:58,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:48:58,213 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2019-11-21 12:48:58,213 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:48:58,236 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:48:58,240 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2019-11-21 12:48:58,241 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:48:58,254 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:48:58,255 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-11-21 12:48:58,256 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:16 [2019-11-21 12:49:00,454 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:49:00,454 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-21 12:49:00,455 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:49:00,499 INFO L567 ElimStorePlain]: treesize reduction 18, result has 45.5 percent of original size [2019-11-21 12:49:00,499 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:49:00,503 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:15 [2019-11-21 12:49:00,528 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 12:49:00,529 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:49:08,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:49:08,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:49:08,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:49:08,890 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-11-21 12:49:09,100 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:49:09,101 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 12:49:09,109 INFO L168 Benchmark]: Toolchain (without parser) took 116700.91 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 339.7 MB). Free memory was 952.3 MB in the beginning and 1.3 GB in the end (delta: -325.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2019-11-21 12:49:09,110 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:49:09,114 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -142.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-11-21 12:49:09,117 INFO L168 Benchmark]: Boogie Preprocessor took 114.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-21 12:49:09,117 INFO L168 Benchmark]: RCFGBuilder took 1715.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.4 MB in the end (delta: 112.2 MB). Peak memory consumption was 112.2 MB. Max. memory is 11.5 GB. [2019-11-21 12:49:09,118 INFO L168 Benchmark]: TraceAbstraction took 114101.52 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 194.0 MB). Free memory was 976.4 MB in the beginning and 1.3 GB in the end (delta: -301.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:49:09,120 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 758.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -142.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 114.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1715.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.4 MB in the end (delta: 112.2 MB). Peak memory consumption was 112.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 114101.52 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 194.0 MB). Free memory was 976.4 MB in the beginning and 1.3 GB in the end (delta: -301.1 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...