./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 13cc57c6782c611a2cc29fdcbf3c29309805806e --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 12:07:55,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 12:07:55,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 12:07:55,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 12:07:55,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 12:07:55,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 12:07:55,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 12:07:55,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 12:07:55,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 12:07:55,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 12:07:55,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 12:07:55,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 12:07:55,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 12:07:55,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 12:07:55,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 12:07:55,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 12:07:55,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 12:07:55,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 12:07:55,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 12:07:55,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 12:07:55,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 12:07:55,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 12:07:55,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 12:07:55,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 12:07:55,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 12:07:55,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 12:07:55,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 12:07:55,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 12:07:55,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 12:07:55,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 12:07:55,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 12:07:55,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 12:07:55,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 12:07:55,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 12:07:55,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 12:07:55,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 12:07:55,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 12:07:55,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 12:07:55,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 12:07:55,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 12:07:55,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 12:07:55,166 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 12:07:55,180 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 12:07:55,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 12:07:55,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 12:07:55,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 12:07:55,182 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 12:07:55,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 12:07:55,183 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 12:07:55,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 12:07:55,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 12:07:55,183 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 12:07:55,184 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 12:07:55,184 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 12:07:55,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 12:07:55,184 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 12:07:55,184 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:55,185 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 12:07:55,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 12:07:55,185 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 12:07:55,185 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 12:07:55,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 12:07:55,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:07:55,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 12:07:55,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 12:07:55,186 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 12:07:55,187 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 12:07:55,187 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 12:07:55,187 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13cc57c6782c611a2cc29fdcbf3c29309805806e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 12:07:55,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 12:07:55,480 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 12:07:55,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 12:07:55,486 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 12:07:55,487 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 12:07:55,487 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i [2019-11-21 12:07:55,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a30fa9cd/5ef89d9bceb643549f5b7fa6514741af/FLAGbf225b7b6 [2019-11-21 12:07:56,091 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 12:07:56,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i [2019-11-21 12:07:56,110 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a30fa9cd/5ef89d9bceb643549f5b7fa6514741af/FLAGbf225b7b6 [2019-11-21 12:07:56,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a30fa9cd/5ef89d9bceb643549f5b7fa6514741af [2019-11-21 12:07:56,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 12:07:56,371 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 12:07:56,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 12:07:56,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 12:07:56,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 12:07:56,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:07:56" (1/1) ... [2019-11-21 12:07:56,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27471e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:56, skipping insertion in model container [2019-11-21 12:07:56,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:07:56" (1/1) ... [2019-11-21 12:07:56,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 12:07:56,441 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:07:56,895 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 12:07:56,896 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 12:07:56,896 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:56,919 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 12:07:56,920 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 12:07:56,920 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:56,925 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 12:07:56,925 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 12:07:56,925 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:56,930 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 12:07:56,930 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 12:07:56,930 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:56,971 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 12:07:56,971 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 12:07:56,971 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:56,991 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 12:07:56,991 INFO L969 CHandler]: at location: C: (struct A17 *)ldv_malloc(sizeof(struct A17)) [766] [2019-11-21 12:07:56,991 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:57,008 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 12:07:57,009 INFO L969 CHandler]: at location: C: (struct A17 **)ldv_malloc(sizeof(struct A17*)*len) [781] [2019-11-21 12:07:57,009 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:57,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:07:57,044 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 12:07:57,071 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:07:57,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:07:57,162 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 12:07:57,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:07:57,300 INFO L205 MainTranslator]: Completed translation [2019-11-21 12:07:57,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:57 WrapperNode [2019-11-21 12:07:57,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 12:07:57,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 12:07:57,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 12:07:57,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 12:07:57,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:57" (1/1) ... [2019-11-21 12:07:57,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:57" (1/1) ... [2019-11-21 12:07:57,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:57" (1/1) ... [2019-11-21 12:07:57,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:57" (1/1) ... [2019-11-21 12:07:57,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:57" (1/1) ... [2019-11-21 12:07:57,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:57" (1/1) ... [2019-11-21 12:07:57,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:57" (1/1) ... [2019-11-21 12:07:57,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 12:07:57,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 12:07:57,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 12:07:57,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 12:07:57,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:57" (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 12:07:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 12:07:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 12:07:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:07:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 12:07:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 12:07:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 12:07:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 12:07:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 12:07:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 12:07:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 12:07:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 12:07:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 12:07:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:07:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 12:07:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 12:07:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 12:07:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 12:07:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 12:07:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 12:07:57,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 12:07:57,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 12:07:57,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 12:07:57,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 12:07:57,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 12:07:57,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 12:07:57,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 12:07:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 12:07:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 12:07:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 12:07:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 12:07:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 12:07:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 12:07:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 12:07:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 12:07:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 12:07:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 12:07:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 12:07:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 12:07:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 12:07:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 12:07:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 12:07:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-21 12:07:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 12:07:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 12:07:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 12:07:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 12:07:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 12:07:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 12:07:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 12:07:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 12:07:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 12:07:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 12:07:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 12:07:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 12:07:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 12:07:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 12:07:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 12:07:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 12:07:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 12:07:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 12:07:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 12:07:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 12:07:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 12:07:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 12:07:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 12:07:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 12:07:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 12:07:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 12:07:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 12:07:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 12:07:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 12:07:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 12:07:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 12:07:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 12:07:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 12:07:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 12:07:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 12:07:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 12:07:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 12:07:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 12:07:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 12:07:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 12:07:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 12:07:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 12:07:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 12:07:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 12:07:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 12:07:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 12:07:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 12:07:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 12:07:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 12:07:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 12:07:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 12:07:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 12:07:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 12:07:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 12:07:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 12:07:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 12:07:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 12:07:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 12:07:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 12:07:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 12:07:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 12:07:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 12:07:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 12:07:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 12:07:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 12:07:57,499 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 12:07:57,499 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 12:07:57,499 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 12:07:57,499 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 12:07:57,499 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 12:07:57,499 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 12:07:57,499 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 12:07:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 12:07:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 12:07:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 12:07:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 12:07:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 12:07:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 12:07:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 12:07:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 12:07:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 12:07:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 12:07:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 12:07:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 12:07:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 12:07:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 12:07:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 12:07:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 12:07:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 12:07:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 12:07:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 12:07:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 12:07:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 12:07:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 12:07:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 12:07:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 12:07:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 12:07:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 12:07:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 12:07:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 12:07:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 12:07:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 12:07:57,504 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 12:07:57,504 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 12:07:57,504 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 12:07:57,504 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 12:07:57,504 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 12:07:57,504 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 12:07:57,504 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 12:07:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 12:07:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 12:07:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 12:07:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 12:07:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 12:07:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 12:07:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 12:07:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 12:07:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 12:07:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 12:07:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 12:07:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 12:07:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 12:07:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 12:07:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:07:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 12:07:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 12:07:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 12:07:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 12:07:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 12:07:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 12:07:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 12:07:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 12:07:57,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 12:07:57,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 12:07:57,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 12:07:57,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 12:07:57,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 12:07:57,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 12:07:57,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 12:07:57,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 12:07:57,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 12:07:57,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 12:07:57,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 12:07:57,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 12:07:57,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 12:07:57,510 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:07:57,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 12:07:57,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 12:07:57,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 12:07:57,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 12:07:57,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 12:07:57,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 12:07:57,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 12:07:57,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 12:07:57,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 12:07:57,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 12:07:57,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 12:07:57,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 12:07:57,512 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 12:07:57,512 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 12:07:57,512 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-21 12:07:57,513 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 12:07:57,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 12:07:57,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 12:07:57,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 12:07:57,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 12:07:57,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 12:07:57,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 12:07:57,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 12:07:57,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 12:07:57,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 12:07:58,126 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:07:58,511 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:07:59,055 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 12:07:59,055 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-21 12:07:59,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:07:59 BoogieIcfgContainer [2019-11-21 12:07:59,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 12:07:59,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 12:07:59,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 12:07:59,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 12:07:59,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:07:56" (1/3) ... [2019-11-21 12:07:59,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11475f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:07:59, skipping insertion in model container [2019-11-21 12:07:59,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:57" (2/3) ... [2019-11-21 12:07:59,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11475f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:07:59, skipping insertion in model container [2019-11-21 12:07:59,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:07:59" (3/3) ... [2019-11-21 12:07:59,067 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_3.i [2019-11-21 12:07:59,077 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 12:07:59,086 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 85 error locations. [2019-11-21 12:07:59,098 INFO L249 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2019-11-21 12:07:59,123 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 12:07:59,124 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 12:07:59,124 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 12:07:59,124 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 12:07:59,124 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 12:07:59,125 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 12:07:59,128 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 12:07:59,128 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 12:07:59,159 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2019-11-21 12:07:59,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 12:07:59,174 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:07:59,175 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:07:59,177 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:07:59,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:07:59,184 INFO L82 PathProgramCache]: Analyzing trace with hash 2012889847, now seen corresponding path program 1 times [2019-11-21 12:07:59,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:07:59,199 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1011910386] [2019-11-21 12:07:59,200 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 12:07:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:07:59,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:07:59,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:07:59,709 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 12:07:59,710 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:07:59,724 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:07:59,725 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:07:59,726 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:07:59,772 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 12:07:59,773 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:07:59,873 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 12:07:59,876 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1011910386] [2019-11-21 12:07:59,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:07:59,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 12:07:59,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831820522] [2019-11-21 12:07:59,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:07:59,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:07:59,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:07:59,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:07:59,921 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 5 states. [2019-11-21 12:08:00,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:08:00,225 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2019-11-21 12:08:00,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:08:00,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 12:08:00,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:08:00,242 INFO L225 Difference]: With dead ends: 72 [2019-11-21 12:08:00,243 INFO L226 Difference]: Without dead ends: 69 [2019-11-21 12:08:00,247 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:08:00,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-21 12:08:00,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2019-11-21 12:08:00,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-21 12:08:00,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2019-11-21 12:08:00,333 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 16 [2019-11-21 12:08:00,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:08:00,334 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2019-11-21 12:08:00,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:08:00,335 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2019-11-21 12:08:00,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 12:08:00,337 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:08:00,337 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:08:00,542 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:00,543 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:08:00,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:08:00,543 INFO L82 PathProgramCache]: Analyzing trace with hash 2012889848, now seen corresponding path program 1 times [2019-11-21 12:08:00,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:08:00,544 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1990568592] [2019-11-21 12:08:00,544 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 12:08:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:08:00,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 12:08:00,857 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:08:00,886 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 12:08:00,886 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:08:00,895 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:08:00,895 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:08:00,897 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 12:08:00,997 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 12:08:00,997 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:08:01,838 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 12:08:01,839 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1990568592] [2019-11-21 12:08:01,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:08:01,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-21 12:08:01,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74755915] [2019-11-21 12:08:01,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 12:08:01,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:08:01,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 12:08:01,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-21 12:08:01,844 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand 14 states. [2019-11-21 12:08:03,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:08:03,270 INFO L93 Difference]: Finished difference Result 80 states and 95 transitions. [2019-11-21 12:08:03,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 12:08:03,271 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-21 12:08:03,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:08:03,273 INFO L225 Difference]: With dead ends: 80 [2019-11-21 12:08:03,273 INFO L226 Difference]: Without dead ends: 80 [2019-11-21 12:08:03,274 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2019-11-21 12:08:03,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-11-21 12:08:03,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 70. [2019-11-21 12:08:03,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-11-21 12:08:03,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2019-11-21 12:08:03,284 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 16 [2019-11-21 12:08:03,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:08:03,284 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2019-11-21 12:08:03,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 12:08:03,284 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2019-11-21 12:08:03,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 12:08:03,285 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:08:03,285 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:08:03,488 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:03,490 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:08:03,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:08:03,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1394573768, now seen corresponding path program 1 times [2019-11-21 12:08:03,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:08:03,494 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [172548826] [2019-11-21 12:08:03,494 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 12:08:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:08:03,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 12:08:03,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:08:03,742 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 12:08:03,743 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:08:03,779 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 12:08:03,780 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [172548826] [2019-11-21 12:08:03,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:08:03,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 12:08:03,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233376605] [2019-11-21 12:08:03,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:08:03,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:08:03,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:08:03,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:08:03,781 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand 5 states. [2019-11-21 12:08:03,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:08:03,821 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2019-11-21 12:08:03,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:08:03,822 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 12:08:03,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:08:03,824 INFO L225 Difference]: With dead ends: 69 [2019-11-21 12:08:03,824 INFO L226 Difference]: Without dead ends: 69 [2019-11-21 12:08:03,825 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:08:03,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-21 12:08:03,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2019-11-21 12:08:03,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-11-21 12:08:03,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2019-11-21 12:08:03,833 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 16 [2019-11-21 12:08:03,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:08:03,834 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2019-11-21 12:08:03,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:08:03,834 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2019-11-21 12:08:03,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 12:08:03,835 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:08:03,835 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:08:04,038 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:04,040 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:08:04,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:08:04,040 INFO L82 PathProgramCache]: Analyzing trace with hash -2024128132, now seen corresponding path program 1 times [2019-11-21 12:08:04,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:08:04,041 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [378287333] [2019-11-21 12:08:04,042 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 12:08:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:08:04,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:08:04,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:08:04,270 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 12:08:04,270 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:08:04,336 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 12:08:04,337 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [378287333] [2019-11-21 12:08:04,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:08:04,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 12:08:04,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668563877] [2019-11-21 12:08:04,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:08:04,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:08:04,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:08:04,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:08:04,339 INFO L87 Difference]: Start difference. First operand 67 states and 75 transitions. Second operand 5 states. [2019-11-21 12:08:04,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:08:04,405 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2019-11-21 12:08:04,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:08:04,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 12:08:04,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:08:04,409 INFO L225 Difference]: With dead ends: 69 [2019-11-21 12:08:04,410 INFO L226 Difference]: Without dead ends: 69 [2019-11-21 12:08:04,410 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:08:04,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-21 12:08:04,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2019-11-21 12:08:04,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-11-21 12:08:04,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2019-11-21 12:08:04,428 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 17 [2019-11-21 12:08:04,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:08:04,429 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2019-11-21 12:08:04,430 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:08:04,430 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2019-11-21 12:08:04,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 12:08:04,431 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:08:04,431 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:08:04,639 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:04,639 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:08:04,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:08:04,640 INFO L82 PathProgramCache]: Analyzing trace with hash -281317797, now seen corresponding path program 1 times [2019-11-21 12:08:04,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:08:04,640 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1124509142] [2019-11-21 12:08:04,640 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 12:08:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:08:04,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 12:08:04,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:08:04,878 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 12:08:04,879 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:08:04,933 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 12:08:04,933 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1124509142] [2019-11-21 12:08:04,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:08:04,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 12:08:04,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470331563] [2019-11-21 12:08:04,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 12:08:04,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:08:04,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 12:08:04,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 12:08:04,935 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand 3 states. [2019-11-21 12:08:05,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:08:05,056 INFO L93 Difference]: Finished difference Result 93 states and 104 transitions. [2019-11-21 12:08:05,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 12:08:05,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-21 12:08:05,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:08:05,058 INFO L225 Difference]: With dead ends: 93 [2019-11-21 12:08:05,058 INFO L226 Difference]: Without dead ends: 88 [2019-11-21 12:08:05,058 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 12:08:05,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-11-21 12:08:05,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 65. [2019-11-21 12:08:05,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-21 12:08:05,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2019-11-21 12:08:05,068 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 17 [2019-11-21 12:08:05,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:08:05,068 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2019-11-21 12:08:05,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 12:08:05,068 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2019-11-21 12:08:05,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 12:08:05,069 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:08:05,069 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:08:05,272 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:05,274 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:08:05,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:08:05,274 INFO L82 PathProgramCache]: Analyzing trace with hash 189970936, now seen corresponding path program 1 times [2019-11-21 12:08:05,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:08:05,276 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1380205114] [2019-11-21 12:08:05,276 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 12:08:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:08:05,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-21 12:08:05,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:08:05,564 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 12:08:05,564 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:08:05,570 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:08:05,570 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:08:05,570 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 12:08:05,711 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:08:05,712 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:08:06,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:08:07,205 WARN L192 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-21 12:08:07,593 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:08:07,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1380205114] [2019-11-21 12:08:07,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:08:07,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2019-11-21 12:08:07,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630172521] [2019-11-21 12:08:07,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-21 12:08:07,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:08:07,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-21 12:08:07,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-21 12:08:07,597 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand 19 states. [2019-11-21 12:08:08,561 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 26 [2019-11-21 12:08:09,199 WARN L192 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 12:08:09,555 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 12:08:10,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:08:10,322 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2019-11-21 12:08:10,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-21 12:08:10,323 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2019-11-21 12:08:10,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:08:10,324 INFO L225 Difference]: With dead ends: 82 [2019-11-21 12:08:10,324 INFO L226 Difference]: Without dead ends: 82 [2019-11-21 12:08:10,325 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2019-11-21 12:08:10,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-11-21 12:08:10,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 77. [2019-11-21 12:08:10,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-21 12:08:10,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2019-11-21 12:08:10,335 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 22 [2019-11-21 12:08:10,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:08:10,336 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2019-11-21 12:08:10,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-21 12:08:10,336 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2019-11-21 12:08:10,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-21 12:08:10,337 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:08:10,338 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:08:10,550 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:10,551 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:08:10,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:08:10,552 INFO L82 PathProgramCache]: Analyzing trace with hash 676551503, now seen corresponding path program 1 times [2019-11-21 12:08:10,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:08:10,553 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2000653335] [2019-11-21 12:08:10,553 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 12:08:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:08:10,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:08:10,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:08:10,817 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-21 12:08:10,817 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:08:10,849 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-21 12:08:10,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2000653335] [2019-11-21 12:08:10,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:08:10,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 12:08:10,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112004087] [2019-11-21 12:08:10,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:08:10,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:08:10,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:08:10,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:08:10,851 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand 5 states. [2019-11-21 12:08:10,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:08:10,886 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2019-11-21 12:08:10,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:08:10,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-21 12:08:10,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:08:10,890 INFO L225 Difference]: With dead ends: 76 [2019-11-21 12:08:10,890 INFO L226 Difference]: Without dead ends: 76 [2019-11-21 12:08:10,891 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:08:10,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-11-21 12:08:10,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-11-21 12:08:10,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-21 12:08:10,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2019-11-21 12:08:10,898 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 32 [2019-11-21 12:08:10,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:08:10,898 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2019-11-21 12:08:10,898 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:08:10,899 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2019-11-21 12:08:10,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-21 12:08:10,900 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:08:10,900 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:08:11,103 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:11,104 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:08:11,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:08:11,105 INFO L82 PathProgramCache]: Analyzing trace with hash -501739445, now seen corresponding path program 1 times [2019-11-21 12:08:11,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:08:11,106 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2067708960] [2019-11-21 12:08:11,106 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 12:08:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:08:11,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 12:08:11,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:08:11,483 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:08:11,484 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:08:11,620 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:08:11,620 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2067708960] [2019-11-21 12:08:11,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:08:11,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-21 12:08:11,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379984427] [2019-11-21 12:08:11,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-21 12:08:11,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:08:11,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-21 12:08:11,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-21 12:08:11,622 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 12 states. [2019-11-21 12:08:12,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:08:12,001 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2019-11-21 12:08:12,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 12:08:12,002 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2019-11-21 12:08:12,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:08:12,003 INFO L225 Difference]: With dead ends: 82 [2019-11-21 12:08:12,003 INFO L226 Difference]: Without dead ends: 82 [2019-11-21 12:08:12,003 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-11-21 12:08:12,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-11-21 12:08:12,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2019-11-21 12:08:12,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-11-21 12:08:12,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions. [2019-11-21 12:08:12,010 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 33 [2019-11-21 12:08:12,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:08:12,010 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 87 transitions. [2019-11-21 12:08:12,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-21 12:08:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2019-11-21 12:08:12,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-21 12:08:12,012 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:08:12,012 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:08:12,215 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:12,216 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:08:12,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:08:12,217 INFO L82 PathProgramCache]: Analyzing trace with hash -107747336, now seen corresponding path program 2 times [2019-11-21 12:08:12,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:08:12,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [846938817] [2019-11-21 12:08:12,219 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:12,590 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-21 12:08:12,590 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 12:08:12,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-21 12:08:12,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:08:12,618 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 12:08:12,618 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:08:12,624 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:08:12,624 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:08:12,624 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 12:08:12,827 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:08:12,828 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:08:14,908 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:08:14,908 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [846938817] [2019-11-21 12:08:14,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:08:14,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2019-11-21 12:08:14,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782114640] [2019-11-21 12:08:14,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-21 12:08:14,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:08:14,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-21 12:08:14,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2019-11-21 12:08:14,910 INFO L87 Difference]: Start difference. First operand 81 states and 87 transitions. Second operand 26 states. [2019-11-21 12:08:17,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:08:17,978 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2019-11-21 12:08:17,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-21 12:08:17,980 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 34 [2019-11-21 12:08:17,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:08:17,983 INFO L225 Difference]: With dead ends: 92 [2019-11-21 12:08:17,983 INFO L226 Difference]: Without dead ends: 92 [2019-11-21 12:08:17,984 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=291, Invalid=1349, Unknown=0, NotChecked=0, Total=1640 [2019-11-21 12:08:17,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-21 12:08:17,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2019-11-21 12:08:17,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-21 12:08:17,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2019-11-21 12:08:17,991 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 34 [2019-11-21 12:08:17,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:08:17,991 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2019-11-21 12:08:17,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-21 12:08:17,992 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2019-11-21 12:08:17,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-21 12:08:17,993 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:08:17,994 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:08:18,197 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:18,198 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:08:18,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:08:18,199 INFO L82 PathProgramCache]: Analyzing trace with hash 427824632, now seen corresponding path program 3 times [2019-11-21 12:08:18,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:08:18,200 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [461881151] [2019-11-21 12:08:18,200 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:18,768 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-21 12:08:18,769 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 12:08:18,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-21 12:08:18,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:08:18,794 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 12:08:18,794 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:08:18,801 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:08:18,802 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:08:18,802 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 12:08:19,463 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:08:19,464 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:08:20,053 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2019-11-21 12:08:20,981 WARN L192 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2019-11-21 12:08:21,588 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2019-11-21 12:08:22,147 WARN L192 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2019-11-21 12:08:25,565 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:08:26,478 WARN L192 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-11-21 12:08:27,240 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:08:27,240 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [461881151] [2019-11-21 12:08:27,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:08:27,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21] total 38 [2019-11-21 12:08:27,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964066568] [2019-11-21 12:08:27,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-11-21 12:08:27,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:08:27,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-11-21 12:08:27,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=1097, Unknown=0, NotChecked=0, Total=1406 [2019-11-21 12:08:27,243 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand 38 states. [2019-11-21 12:08:28,177 WARN L192 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-11-21 12:08:28,968 WARN L192 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-11-21 12:08:33,567 WARN L192 SmtUtils]: Spent 2.31 s on a formula simplification that was a NOOP. DAG size: 150 [2019-11-21 12:08:35,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:08:35,533 INFO L93 Difference]: Finished difference Result 86 states and 90 transitions. [2019-11-21 12:08:35,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-21 12:08:35,535 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 46 [2019-11-21 12:08:35,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:08:35,536 INFO L225 Difference]: With dead ends: 86 [2019-11-21 12:08:35,536 INFO L226 Difference]: Without dead ends: 86 [2019-11-21 12:08:35,537 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 50 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=358, Invalid=1364, Unknown=0, NotChecked=0, Total=1722 [2019-11-21 12:08:35,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-11-21 12:08:35,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2019-11-21 12:08:35,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-21 12:08:35,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2019-11-21 12:08:35,542 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 46 [2019-11-21 12:08:35,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:08:35,543 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2019-11-21 12:08:35,543 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-11-21 12:08:35,543 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2019-11-21 12:08:35,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-11-21 12:08:35,545 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:08:35,545 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:08:35,750 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:35,750 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:08:35,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:08:35,751 INFO L82 PathProgramCache]: Analyzing trace with hash 2062874979, now seen corresponding path program 2 times [2019-11-21 12:08:35,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:08:35,752 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1514569832] [2019-11-21 12:08:35,752 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:36,000 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 12:08:36,001 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 12:08:36,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:08:36,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:08:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 12:08:36,070 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:08:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 12:08:36,148 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1514569832] [2019-11-21 12:08:36,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:08:36,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-21 12:08:36,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846967090] [2019-11-21 12:08:36,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 12:08:36,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:08:36,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 12:08:36,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:08:36,150 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand 7 states. [2019-11-21 12:08:36,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:08:36,263 INFO L93 Difference]: Finished difference Result 117 states and 125 transitions. [2019-11-21 12:08:36,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:08:36,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 54 [2019-11-21 12:08:36,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:08:36,267 INFO L225 Difference]: With dead ends: 117 [2019-11-21 12:08:36,267 INFO L226 Difference]: Without dead ends: 114 [2019-11-21 12:08:36,267 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-21 12:08:36,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-11-21 12:08:36,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 87. [2019-11-21 12:08:36,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-21 12:08:36,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2019-11-21 12:08:36,273 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 54 [2019-11-21 12:08:36,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:08:36,274 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2019-11-21 12:08:36,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 12:08:36,274 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2019-11-21 12:08:36,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 12:08:36,276 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:08:36,276 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:08:36,479 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:36,481 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:08:36,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:08:36,482 INFO L82 PathProgramCache]: Analyzing trace with hash -465490005, now seen corresponding path program 1 times [2019-11-21 12:08:36,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:08:36,483 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [119133722] [2019-11-21 12:08:36,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:08:36,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 12:08:36,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:08:36,921 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 12:08:36,921 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:08:36,922 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:08:36,923 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:08:36,923 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:08:37,040 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:08:37,041 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 12:08:37,042 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:08:37,060 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 12:08:37,061 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 12:08:37,061 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 12:08:37,091 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 12:08:37,091 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:08:40,811 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-21 12:08:40,811 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [119133722] [2019-11-21 12:08:40,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 12:08:40,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-21 12:08:40,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324683847] [2019-11-21 12:08:40,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 12:08:40,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:08:40,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 12:08:40,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-11-21 12:08:40,813 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 8 states. [2019-11-21 12:08:56,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:08:56,846 INFO L93 Difference]: Finished difference Result 135 states and 147 transitions. [2019-11-21 12:08:56,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 12:08:56,848 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-21 12:08:56,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:08:56,849 INFO L225 Difference]: With dead ends: 135 [2019-11-21 12:08:56,849 INFO L226 Difference]: Without dead ends: 135 [2019-11-21 12:08:56,850 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 96 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=95, Invalid=410, Unknown=1, NotChecked=0, Total=506 [2019-11-21 12:08:56,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-11-21 12:08:56,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 93. [2019-11-21 12:08:56,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-21 12:08:56,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 101 transitions. [2019-11-21 12:08:56,856 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 101 transitions. Word has length 56 [2019-11-21 12:08:56,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:08:56,856 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 101 transitions. [2019-11-21 12:08:56,857 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 12:08:56,857 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 101 transitions. [2019-11-21 12:08:56,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 12:08:56,859 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:08:56,859 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:08:57,059 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:57,060 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:08:57,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:08:57,061 INFO L82 PathProgramCache]: Analyzing trace with hash -465490004, now seen corresponding path program 1 times [2019-11-21 12:08:57,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:08:57,062 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [597328233] [2019-11-21 12:08:57,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:08:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:08:57,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-21 12:08:57,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:08:57,591 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 12:08:57,592 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:08:57,602 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:08:57,606 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 12:08:57,606 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:08:57,628 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:08:57,629 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:08:57,629 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 12:08:59,818 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:08:59,819 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 12:08:59,820 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:08:59,836 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:08:59,848 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:08:59,848 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2019-11-21 12:08:59,849 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:08:59,864 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:08:59,865 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 12:08:59,865 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:12 [2019-11-21 12:08:59,904 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 12:08:59,904 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:09:00,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:09:02,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:09:02,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:09:02,373 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:09:02,375 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:09:02,376 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:09:02,377 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:09:02,378 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:09:02,379 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:09:02,379 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:09:09,834 WARN L192 SmtUtils]: Spent 4.74 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 12:09:09,838 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:09:17,276 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_260|], 2=[|v_#length_226|]} [2019-11-21 12:09:17,290 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 12:09:17,291 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:09:17,301 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:09:17,303 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 12:09:17,304 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:09:17,321 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:09:17,321 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:09:17,322 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-21 12:09:17,970 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 12:09:17,981 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 12:09:17,982 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:09:18,008 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:09:18,011 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 12:09:18,012 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:09:18,051 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:09:18,052 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:09:18,052 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-21 12:09:18,206 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 12:09:18,207 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [597328233] [2019-11-21 12:09:18,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:09:18,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-21 12:09:18,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372838345] [2019-11-21 12:09:18,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-21 12:09:18,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:09:18,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-21 12:09:18,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=405, Unknown=5, NotChecked=0, Total=462 [2019-11-21 12:09:18,210 INFO L87 Difference]: Start difference. First operand 93 states and 101 transitions. Second operand 22 states. [2019-11-21 12:09:41,582 WARN L192 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-11-21 12:09:52,275 WARN L192 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 58 DAG size of output: 29 [2019-11-21 12:09:57,061 WARN L192 SmtUtils]: Spent 4.22 s on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-11-21 12:10:04,337 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 12:10:08,694 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-21 12:10:22,713 WARN L192 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2019-11-21 12:10:36,746 WARN L192 SmtUtils]: Spent 8.28 s on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-11-21 12:11:05,079 WARN L192 SmtUtils]: Spent 19.17 s on a formula simplification. DAG size of input: 74 DAG size of output: 45 [2019-11-21 12:11:51,544 WARN L192 SmtUtils]: Spent 4.22 s on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-11-21 12:12:05,830 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-11-21 12:12:17,477 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2019-11-21 12:12:32,983 WARN L192 SmtUtils]: Spent 6.12 s on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-11-21 12:12:42,906 WARN L192 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2019-11-21 12:13:21,478 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-21 12:13:34,151 WARN L192 SmtUtils]: Spent 8.21 s on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2019-11-21 12:14:01,181 WARN L192 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 76 DAG size of output: 45 [2019-11-21 12:14:33,755 WARN L192 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 43 DAG size of output: 12 [2019-11-21 12:14:42,563 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 26 [2019-11-21 12:14:45,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:14:45,335 INFO L93 Difference]: Finished difference Result 348 states and 397 transitions. [2019-11-21 12:14:45,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-11-21 12:14:45,336 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-21 12:14:45,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:14:45,338 INFO L225 Difference]: With dead ends: 348 [2019-11-21 12:14:45,338 INFO L226 Difference]: Without dead ends: 348 [2019-11-21 12:14:45,339 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 88 SyntacticMatches, 6 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 189.7s TimeCoverageRelationStatistics Valid=365, Invalid=2245, Unknown=42, NotChecked=0, Total=2652 [2019-11-21 12:14:45,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-21 12:14:45,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 111. [2019-11-21 12:14:45,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-11-21 12:14:45,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2019-11-21 12:14:45,348 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 56 [2019-11-21 12:14:45,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:14:45,349 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2019-11-21 12:14:45,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-21 12:14:45,349 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2019-11-21 12:14:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 12:14:45,351 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:14:45,351 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:14:45,555 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:14:45,557 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:14:45,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:14:45,558 INFO L82 PathProgramCache]: Analyzing trace with hash -659340552, now seen corresponding path program 1 times [2019-11-21 12:14:45,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:14:45,559 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [127941657] [2019-11-21 12:14:45,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:14:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:14:45,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:14:45,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:14:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 12:14:45,862 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:14:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 12:14:45,926 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [127941657] [2019-11-21 12:14:45,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:14:45,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 12:14:45,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340845294] [2019-11-21 12:14:45,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:14:45,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:14:45,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:14:45,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:14:45,929 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand 5 states. [2019-11-21 12:14:45,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:14:45,990 INFO L93 Difference]: Finished difference Result 131 states and 152 transitions. [2019-11-21 12:14:45,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:14:45,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-21 12:14:45,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:14:45,992 INFO L225 Difference]: With dead ends: 131 [2019-11-21 12:14:45,992 INFO L226 Difference]: Without dead ends: 131 [2019-11-21 12:14:45,993 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:14:45,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-11-21 12:14:45,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 115. [2019-11-21 12:14:45,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-21 12:14:45,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 131 transitions. [2019-11-21 12:14:45,999 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 131 transitions. Word has length 58 [2019-11-21 12:14:46,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:14:46,000 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 131 transitions. [2019-11-21 12:14:46,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:14:46,000 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 131 transitions. [2019-11-21 12:14:46,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 12:14:46,001 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:14:46,001 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:14:46,211 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:14:46,212 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:14:46,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:14:46,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1083469783, now seen corresponding path program 1 times [2019-11-21 12:14:46,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:14:46,214 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [831225083] [2019-11-21 12:14:46,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:14:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:14:46,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 12:14:46,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:14:46,646 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 12:14:46,646 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:14:46,679 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 12:14:46,679 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [831225083] [2019-11-21 12:14:46,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:14:46,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 12:14:46,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043776924] [2019-11-21 12:14:46,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:14:46,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:14:46,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:14:46,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:14:46,680 INFO L87 Difference]: Start difference. First operand 115 states and 131 transitions. Second operand 6 states. [2019-11-21 12:14:46,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:14:46,783 INFO L93 Difference]: Finished difference Result 122 states and 138 transitions. [2019-11-21 12:14:46,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:14:46,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-21 12:14:46,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:14:46,786 INFO L225 Difference]: With dead ends: 122 [2019-11-21 12:14:46,786 INFO L226 Difference]: Without dead ends: 122 [2019-11-21 12:14:46,786 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:14:46,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-11-21 12:14:46,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 117. [2019-11-21 12:14:46,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-11-21 12:14:46,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 133 transitions. [2019-11-21 12:14:46,791 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 133 transitions. Word has length 58 [2019-11-21 12:14:46,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:14:46,792 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 133 transitions. [2019-11-21 12:14:46,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:14:46,792 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 133 transitions. [2019-11-21 12:14:46,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-21 12:14:46,793 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:14:46,794 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:14:46,997 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:14:46,998 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:14:46,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:14:46,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1826501826, now seen corresponding path program 1 times [2019-11-21 12:14:46,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:14:47,000 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [555296543] [2019-11-21 12:14:47,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:14:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:14:47,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 12:14:47,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:14:47,494 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 12:14:47,494 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:14:47,632 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 12:14:47,633 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [555296543] [2019-11-21 12:14:47,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:14:47,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-21 12:14:47,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254591116] [2019-11-21 12:14:47,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 12:14:47,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:14:47,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 12:14:47,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 12:14:47,635 INFO L87 Difference]: Start difference. First operand 117 states and 133 transitions. Second operand 9 states. [2019-11-21 12:14:47,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:14:47,894 INFO L93 Difference]: Finished difference Result 116 states and 131 transitions. [2019-11-21 12:14:47,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:14:47,895 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2019-11-21 12:14:47,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:14:47,897 INFO L225 Difference]: With dead ends: 116 [2019-11-21 12:14:47,897 INFO L226 Difference]: Without dead ends: 116 [2019-11-21 12:14:47,897 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 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 12:14:47,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-11-21 12:14:47,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-11-21 12:14:47,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-11-21 12:14:47,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 131 transitions. [2019-11-21 12:14:47,911 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 131 transitions. Word has length 63 [2019-11-21 12:14:47,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:14:47,912 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 131 transitions. [2019-11-21 12:14:47,912 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 12:14:47,912 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 131 transitions. [2019-11-21 12:14:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-21 12:14:47,913 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:14:47,914 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:14:48,123 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:14:48,124 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:14:48,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:14:48,124 INFO L82 PathProgramCache]: Analyzing trace with hash 404669401, now seen corresponding path program 1 times [2019-11-21 12:14:48,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:14:48,125 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1533021068] [2019-11-21 12:14:48,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:14:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:14:48,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 12:14:48,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:14:48,793 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 12:14:48,793 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:14:49,054 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:14:49,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:14:49,353 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2019-11-21 12:14:49,353 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 12:14:49,396 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2019-11-21 12:14:49,397 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:14:49,475 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:14:49,476 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-11-21 12:14:49,476 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:40 [2019-11-21 12:14:49,840 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 10 [2019-11-21 12:14:50,249 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 12:14:50,249 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1533021068] [2019-11-21 12:14:50,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:14:50,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2019-11-21 12:14:50,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013344881] [2019-11-21 12:14:50,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-21 12:14:50,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:14:50,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-21 12:14:50,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2019-11-21 12:14:50,251 INFO L87 Difference]: Start difference. First operand 116 states and 131 transitions. Second operand 20 states. [2019-11-21 12:14:52,839 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 19 [2019-11-21 12:14:53,084 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2019-11-21 12:14:54,600 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2019-11-21 12:14:55,155 WARN L192 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2019-11-21 12:14:55,711 WARN L192 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2019-11-21 12:14:55,996 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2019-11-21 12:14:57,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:14:57,722 INFO L93 Difference]: Finished difference Result 291 states and 327 transitions. [2019-11-21 12:14:57,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-11-21 12:14:57,724 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 68 [2019-11-21 12:14:57,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:14:57,726 INFO L225 Difference]: With dead ends: 291 [2019-11-21 12:14:57,726 INFO L226 Difference]: Without dead ends: 291 [2019-11-21 12:14:57,727 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=371, Invalid=1699, Unknown=0, NotChecked=0, Total=2070 [2019-11-21 12:14:57,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2019-11-21 12:14:57,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 116. [2019-11-21 12:14:57,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-11-21 12:14:57,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 129 transitions. [2019-11-21 12:14:57,738 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 129 transitions. Word has length 68 [2019-11-21 12:14:57,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:14:57,738 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 129 transitions. [2019-11-21 12:14:57,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-21 12:14:57,739 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 129 transitions. [2019-11-21 12:14:57,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-11-21 12:14:57,740 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:14:57,740 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:14:57,944 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:14:57,945 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:14:57,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:14:57,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1266589644, now seen corresponding path program 1 times [2019-11-21 12:14:57,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:14:57,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2082829184] [2019-11-21 12:14:57,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:14:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:14:58,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-21 12:14:58,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:14:58,428 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:14:58,428 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-21 12:14:58,429 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:14:58,444 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 12:14:58,444 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:14:58,445 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 12:14:58,445 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 12:14:58,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:14:58,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:14:58,455 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:14:58,461 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:15:04,638 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 12:15:04,638 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:15:09,013 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:15:09,015 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 12:15:09,023 INFO L168 Benchmark]: Toolchain (without parser) took 432652.64 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 334.5 MB). Free memory was 949.6 MB in the beginning and 1.2 GB in the end (delta: -267.3 MB). Peak memory consumption was 67.2 MB. Max. memory is 11.5 GB. [2019-11-21 12:15:09,023 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:15:09,023 INFO L168 Benchmark]: CACSL2BoogieTranslator took 929.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-21 12:15:09,024 INFO L168 Benchmark]: Boogie Preprocessor took 115.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 12:15:09,024 INFO L168 Benchmark]: RCFGBuilder took 1639.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 978.8 MB in the end (delta: 118.4 MB). Peak memory consumption was 118.4 MB. Max. memory is 11.5 GB. [2019-11-21 12:15:09,024 INFO L168 Benchmark]: TraceAbstraction took 429962.42 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 185.6 MB). Free memory was 978.8 MB in the beginning and 1.2 GB in the end (delta: -238.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:15:09,027 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 929.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 115.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1639.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 978.8 MB in the end (delta: 118.4 MB). Peak memory consumption was 118.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 429962.42 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 185.6 MB). Free memory was 978.8 MB in the beginning and 1.2 GB in the end (delta: -238.1 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...