./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.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_test18_2.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 09bd2b4d877b02d6e4448e44897944243667e3ce --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 12:07:10,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 12:07:10,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 12:07:10,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 12:07:10,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 12:07:10,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 12:07:10,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 12:07:10,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 12:07:10,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 12:07:10,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 12:07:10,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 12:07:10,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 12:07:10,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 12:07:10,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 12:07:10,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 12:07:10,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 12:07:10,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 12:07:10,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 12:07:10,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 12:07:10,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 12:07:10,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 12:07:10,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 12:07:10,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 12:07:10,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 12:07:10,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 12:07:10,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 12:07:10,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 12:07:10,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 12:07:10,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 12:07:10,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 12:07:10,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 12:07:10,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 12:07:10,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 12:07:10,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 12:07:10,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 12:07:10,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 12:07:11,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 12:07:11,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 12:07:11,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 12:07:11,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 12:07:11,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 12:07:11,005 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 12:07:11,039 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 12:07:11,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 12:07:11,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 12:07:11,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 12:07:11,045 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 12:07:11,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 12:07:11,046 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 12:07:11,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 12:07:11,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 12:07:11,047 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 12:07:11,049 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 12:07:11,049 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 12:07:11,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 12:07:11,050 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 12:07:11,050 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:11,051 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 12:07:11,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 12:07:11,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 12:07:11,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 12:07:11,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 12:07:11,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:07:11,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 12:07:11,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 12:07:11,052 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 12:07:11,052 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 12:07:11,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 12:07:11,053 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 -> 09bd2b4d877b02d6e4448e44897944243667e3ce Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 12:07:11,361 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 12:07:11,378 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 12:07:11,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 12:07:11,384 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 12:07:11,384 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 12:07:11,385 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2019-11-21 12:07:11,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c028e467/d62baef6985e4a52a6cdf234b943861a/FLAG476e7be5d [2019-11-21 12:07:11,975 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 12:07:11,976 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2019-11-21 12:07:11,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c028e467/d62baef6985e4a52a6cdf234b943861a/FLAG476e7be5d [2019-11-21 12:07:12,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c028e467/d62baef6985e4a52a6cdf234b943861a [2019-11-21 12:07:12,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 12:07:12,266 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 12:07:12,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 12:07:12,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 12:07:12,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 12:07:12,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:07:12" (1/1) ... [2019-11-21 12:07:12,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@792d49a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:12, skipping insertion in model container [2019-11-21 12:07:12,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:07:12" (1/1) ... [2019-11-21 12:07:12,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 12:07:12,361 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:07:12,978 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 12:07:12,979 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 12:07:12,979 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:13,004 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 12:07:13,004 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 12:07:13,005 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:13,009 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 12:07:13,009 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 12:07:13,010 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:13,017 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 12:07:13,017 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 12:07:13,017 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:13,042 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 12:07:13,042 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 12:07:13,042 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:13,051 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 12:07:13,052 INFO L969 CHandler]: at location: C: (struct A18 **)ldv_malloc(sizeof(struct A18*)*len) [763] [2019-11-21 12:07:13,052 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:13,054 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 12:07:13,055 INFO L969 CHandler]: at location: C: (struct A18 *)ldv_malloc(sizeof(struct A18)) [769] [2019-11-21 12:07:13,055 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:07:13,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:07:13,081 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 12:07:13,089 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:07:13,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:07:13,191 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 12:07:13,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:07:13,336 INFO L205 MainTranslator]: Completed translation [2019-11-21 12:07:13,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:13 WrapperNode [2019-11-21 12:07:13,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 12:07:13,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 12:07:13,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 12:07:13,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 12:07:13,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:13" (1/1) ... [2019-11-21 12:07:13,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:13" (1/1) ... [2019-11-21 12:07:13,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:13" (1/1) ... [2019-11-21 12:07:13,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:13" (1/1) ... [2019-11-21 12:07:13,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:13" (1/1) ... [2019-11-21 12:07:13,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:13" (1/1) ... [2019-11-21 12:07:13,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:13" (1/1) ... [2019-11-21 12:07:13,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 12:07:13,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 12:07:13,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 12:07:13,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 12:07:13,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:07:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 12:07:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 12:07:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:07:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 12:07:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 12:07:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 12:07:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 12:07:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 12:07:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 12:07:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 12:07:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 12:07:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 12:07:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:07:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 12:07:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 12:07:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 12:07:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 12:07:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 12:07:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 12:07:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 12:07:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 12:07:13,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 12:07:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 12:07:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 12:07:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 12:07:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 12:07:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 12:07:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 12:07:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 12:07:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 12:07:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 12:07:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 12:07:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 12:07:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 12:07:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 12:07:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 12:07:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 12:07:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 12:07:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 12:07:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 12:07:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 12:07:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 12:07:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 12:07:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 12:07:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 12:07:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 12:07:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 12:07:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 12:07:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 12:07:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 12:07:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 12:07:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 12:07:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 12:07:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 12:07:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 12:07:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 12:07:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 12:07:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 12:07:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 12:07:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 12:07:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 12:07:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 12:07:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 12:07:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 12:07:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 12:07:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 12:07:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 12:07:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 12:07:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 12:07:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 12:07:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 12:07:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 12:07:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 12:07:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 12:07:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 12:07:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 12:07:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 12:07:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 12:07:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 12:07:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 12:07:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 12:07:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 12:07:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 12:07:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 12:07:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 12:07:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 12:07:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 12:07:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 12:07:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 12:07:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 12:07:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 12:07:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 12:07:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 12:07:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 12:07:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 12:07:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 12:07:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 12:07:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 12:07:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 12:07:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 12:07:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 12:07:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 12:07:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 12:07:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 12:07:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 12:07:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 12:07:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 12:07:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 12:07:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 12:07:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 12:07:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 12:07:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 12:07:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 12:07:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 12:07:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 12:07:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 12:07:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 12:07:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 12:07:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 12:07:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 12:07:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 12:07:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 12:07:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 12:07:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 12:07:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 12:07:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 12:07:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 12:07:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 12:07:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 12:07:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 12:07:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 12:07:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 12:07:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 12:07:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 12:07:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 12:07:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 12:07:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 12:07:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 12:07:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 12:07:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 12:07:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 12:07:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 12:07:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 12:07:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 12:07:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 12:07:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 12:07:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 12:07:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 12:07:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 12:07:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 12:07:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 12:07:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 12:07:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 12:07:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 12:07:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 12:07:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 12:07:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 12:07:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 12:07:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 12:07:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 12:07:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 12:07:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 12:07:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 12:07:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 12:07:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:07:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 12:07:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 12:07:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 12:07:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 12:07:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 12:07:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 12:07:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 12:07:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 12:07:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 12:07:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 12:07:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 12:07:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 12:07:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 12:07:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 12:07:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 12:07:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 12:07:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 12:07:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 12:07:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 12:07:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 12:07:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 12:07:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:07:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 12:07:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 12:07:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 12:07:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 12:07:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 12:07:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 12:07:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 12:07:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 12:07:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 12:07:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 12:07:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 12:07:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 12:07:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 12:07:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 12:07:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 12:07:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 12:07:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 12:07:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 12:07:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 12:07:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 12:07:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 12:07:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 12:07:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 12:07:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 12:07:14,109 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:07:14,531 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:07:15,016 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 12:07:15,017 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-21 12:07:15,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:07:15 BoogieIcfgContainer [2019-11-21 12:07:15,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 12:07:15,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 12:07:15,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 12:07:15,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 12:07:15,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:07:12" (1/3) ... [2019-11-21 12:07:15,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a67bed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:07:15, skipping insertion in model container [2019-11-21 12:07:15,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:07:13" (2/3) ... [2019-11-21 12:07:15,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a67bed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:07:15, skipping insertion in model container [2019-11-21 12:07:15,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:07:15" (3/3) ... [2019-11-21 12:07:15,031 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test18_2.i [2019-11-21 12:07:15,041 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 12:07:15,052 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 81 error locations. [2019-11-21 12:07:15,065 INFO L249 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2019-11-21 12:07:15,088 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 12:07:15,089 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 12:07:15,089 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 12:07:15,089 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 12:07:15,089 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 12:07:15,089 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 12:07:15,089 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 12:07:15,090 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 12:07:15,121 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2019-11-21 12:07:15,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 12:07:15,137 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:07:15,138 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 12:07:15,139 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:07:15,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:07:15,147 INFO L82 PathProgramCache]: Analyzing trace with hash 902709096, now seen corresponding path program 1 times [2019-11-21 12:07:15,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:07:15,160 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [932977186] [2019-11-21 12:07:15,161 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 12:07:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:07:15,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:07:15,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:07:15,554 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 12:07:15,555 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:07:15,676 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 12:07:15,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [932977186] [2019-11-21 12:07:15,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:07:15,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 12:07:15,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713184631] [2019-11-21 12:07:15,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:07:15,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:07:15,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:07:15,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:07:15,713 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 5 states. [2019-11-21 12:07:15,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:07:15,938 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2019-11-21 12:07:15,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:07:15,941 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 12:07:15,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:07:15,957 INFO L225 Difference]: With dead ends: 78 [2019-11-21 12:07:15,958 INFO L226 Difference]: Without dead ends: 75 [2019-11-21 12:07:15,960 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 12:07:15,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-11-21 12:07:16,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2019-11-21 12:07:16,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-21 12:07:16,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2019-11-21 12:07:16,027 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2019-11-21 12:07:16,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:07:16,028 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2019-11-21 12:07:16,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:07:16,029 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2019-11-21 12:07:16,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 12:07:16,031 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:07:16,032 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 12:07:16,244 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:07:16,245 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:07:16,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:07:16,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1649447865, now seen corresponding path program 1 times [2019-11-21 12:07:16,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:07:16,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1717710556] [2019-11-21 12:07:16,247 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 12:07:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:07:16,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 12:07:16,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:07:16,517 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 12:07:16,518 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:07:16,587 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 12:07:16,588 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1717710556] [2019-11-21 12:07:16,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:07:16,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 12:07:16,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172285136] [2019-11-21 12:07:16,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 12:07:16,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:07:16,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 12:07:16,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 12:07:16,592 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand 3 states. [2019-11-21 12:07:16,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:07:16,710 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2019-11-21 12:07:16,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 12:07:16,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-21 12:07:16,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:07:16,712 INFO L225 Difference]: With dead ends: 76 [2019-11-21 12:07:16,712 INFO L226 Difference]: Without dead ends: 73 [2019-11-21 12:07:16,715 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 12:07:16,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-11-21 12:07:16,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2019-11-21 12:07:16,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-21 12:07:16,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2019-11-21 12:07:16,737 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 17 [2019-11-21 12:07:16,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:07:16,737 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2019-11-21 12:07:16,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 12:07:16,738 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2019-11-21 12:07:16,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-21 12:07:16,741 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:07:16,741 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:07:16,953 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:07:16,957 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:07:16,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:07:16,961 INFO L82 PathProgramCache]: Analyzing trace with hash -2081301391, now seen corresponding path program 1 times [2019-11-21 12:07:16,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:07:16,964 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1954253479] [2019-11-21 12:07:16,964 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 12:07:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:07:17,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 12:07:17,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:07:17,324 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 12:07:17,324 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:07:17,364 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 12:07:17,365 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1954253479] [2019-11-21 12:07:17,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:07:17,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 12:07:17,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394917711] [2019-11-21 12:07:17,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:07:17,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:07:17,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:07:17,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:07:17,369 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 6 states. [2019-11-21 12:07:17,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:07:17,456 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2019-11-21 12:07:17,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:07:17,458 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-11-21 12:07:17,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:07:17,460 INFO L225 Difference]: With dead ends: 92 [2019-11-21 12:07:17,460 INFO L226 Difference]: Without dead ends: 92 [2019-11-21 12:07:17,460 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:07:17,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-21 12:07:17,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 63. [2019-11-21 12:07:17,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-11-21 12:07:17,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2019-11-21 12:07:17,470 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 18 [2019-11-21 12:07:17,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:07:17,471 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2019-11-21 12:07:17,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:07:17,471 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2019-11-21 12:07:17,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 12:07:17,472 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:07:17,474 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:07:17,684 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:07:17,684 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:07:17,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:07:17,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1625657181, now seen corresponding path program 1 times [2019-11-21 12:07:17,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:07:17,685 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [927975021] [2019-11-21 12:07:17,686 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 12:07:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:07:17,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 12:07:17,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:07:18,027 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 12:07:18,028 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:07:18,035 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:07:18,035 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:07:18,035 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:07:18,136 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:07:18,136 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 17 treesize of output 39 [2019-11-21 12:07:18,137 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:07:18,164 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 12:07:18,165 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 12:07:18,166 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-21 12:07:18,202 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:07:18,202 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:07:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:07:20,599 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [927975021] [2019-11-21 12:07:20,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:07:20,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-21 12:07:20,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701825090] [2019-11-21 12:07:20,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 12:07:20,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:07:20,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 12:07:20,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2019-11-21 12:07:20,601 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand 13 states. [2019-11-21 12:07:38,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:07:38,203 INFO L93 Difference]: Finished difference Result 173 states and 204 transitions. [2019-11-21 12:07:38,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 12:07:38,204 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2019-11-21 12:07:38,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:07:38,208 INFO L225 Difference]: With dead ends: 173 [2019-11-21 12:07:38,208 INFO L226 Difference]: Without dead ends: 173 [2019-11-21 12:07:38,209 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=66, Invalid=239, Unknown=1, NotChecked=0, Total=306 [2019-11-21 12:07:38,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-11-21 12:07:38,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 75. [2019-11-21 12:07:38,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-11-21 12:07:38,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 100 transitions. [2019-11-21 12:07:38,222 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 100 transitions. Word has length 23 [2019-11-21 12:07:38,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:07:38,222 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 100 transitions. [2019-11-21 12:07:38,222 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 12:07:38,222 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 100 transitions. [2019-11-21 12:07:38,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 12:07:38,223 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:07:38,223 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:07:38,424 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:07:38,425 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:07:38,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:07:38,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1625657180, now seen corresponding path program 1 times [2019-11-21 12:07:38,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:07:38,427 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2052359749] [2019-11-21 12:07:38,428 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 12:07:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:07:38,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-21 12:07:38,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:07:38,724 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 12:07:38,724 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:07:38,732 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:07:38,736 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 12:07:38,736 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:07:38,744 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:07:38,744 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:07:38,744 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 12:07:40,915 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:07:40,916 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 12:07:40,917 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:07:40,934 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:07:40,947 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:07:40,947 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-21 12:07:40,948 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:07:40,974 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:07:40,975 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 12:07:40,975 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2019-11-21 12:07:41,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:07:41,007 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:07:41,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:07:41,541 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2019-11-21 12:07:41,545 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:07:41,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:07:41,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:07:41,548 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:07:41,549 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:07:41,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:07:41,552 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:07:52,915 WARN L192 SmtUtils]: Spent 8.33 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 12:07:52,923 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:07:59,970 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_194|], 2=[|v_#length_151|]} [2019-11-21 12:07:59,978 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 12:07:59,979 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:07:59,989 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:07:59,991 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 12:07:59,994 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:08:00,004 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:08:00,005 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 12:08:00,005 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-21 12:08:00,646 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 12:08:00,662 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 12:08:00,662 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:08:00,693 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:08:00,696 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 12:08:00,697 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:08:00,721 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:08:00,722 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 12:08:00,723 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-21 12:08:00,857 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:08:00,858 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2052359749] [2019-11-21 12:08:00,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:08:00,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-11-21 12:08:00,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035496107] [2019-11-21 12:08:00,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-21 12:08:00,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:08:00,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-21 12:08:00,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=259, Unknown=5, NotChecked=0, Total=306 [2019-11-21 12:08:00,861 INFO L87 Difference]: Start difference. First operand 75 states and 100 transitions. Second operand 18 states. [2019-11-21 12:08:30,155 WARN L192 SmtUtils]: Spent 4.24 s on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-11-21 12:08:59,199 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 12:09:11,973 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2019-11-21 12:09:26,111 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 31 [2019-11-21 12:09:38,658 WARN L192 SmtUtils]: Spent 6.72 s on a formula simplification. DAG size of input: 70 DAG size of output: 40 [2019-11-21 12:10:33,314 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (bvmul c_entry_point_~i~0 (_ bv8 32)))) (let ((.cse0 (bvadd .cse5 c_entry_point_~array~0.offset)) (.cse1 (bvadd .cse5 c_entry_point_~array~0.offset (_ bv8 32)))) (and (bvsle .cse0 .cse1) (bvsle (_ bv0 32) .cse0) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (bvadd c_entry_point_~len~0 (_ bv4294967286 32)) (_ bv0 32)) (forall ((v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse4 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv8 32)))) (let ((.cse2 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse4)) (.cse3 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse4 (_ bv8 32)))) (or (not (bvsle (_ bv0 32) .cse2)) (bvsle .cse3 (select |c_#length| v_entry_point_~array~0.base_BEFORE_CALL_4)) (not (bvsle .cse2 .cse3)) (exists ((v_prenex_1 (_ BitVec 32)) (v_ldv_malloc_~size_31 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1)) (not (bvsle (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv8 32)) (_ bv8 32)) (select (store |c_old(#length)| v_prenex_1 v_ldv_malloc_~size_31) v_entry_point_~array~0.base_BEFORE_CALL_4))))))))) (bvsle .cse1 (select |c_#length| c_entry_point_~array~0.base)) (exists ((v_prenex_2 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_2)))))) is different from false [2019-11-21 12:10:51,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:10:51,045 INFO L93 Difference]: Finished difference Result 250 states and 306 transitions. [2019-11-21 12:10:51,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-21 12:10:51,047 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 23 [2019-11-21 12:10:51,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:10:51,049 INFO L225 Difference]: With dead ends: 250 [2019-11-21 12:10:51,050 INFO L226 Difference]: Without dead ends: 250 [2019-11-21 12:10:51,050 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 25 SyntacticMatches, 6 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 72.1s TimeCoverageRelationStatistics Valid=190, Invalid=919, Unknown=17, NotChecked=64, Total=1190 [2019-11-21 12:10:51,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-11-21 12:10:51,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 92. [2019-11-21 12:10:51,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-21 12:10:51,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 127 transitions. [2019-11-21 12:10:51,065 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 127 transitions. Word has length 23 [2019-11-21 12:10:51,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:10:51,065 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 127 transitions. [2019-11-21 12:10:51,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-21 12:10:51,066 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 127 transitions. [2019-11-21 12:10:51,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 12:10:51,067 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:10:51,067 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:10:51,270 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:10:51,270 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:10:51,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:10:51,271 INFO L82 PathProgramCache]: Analyzing trace with hash -2131215806, now seen corresponding path program 1 times [2019-11-21 12:10:51,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:10:51,271 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1220418612] [2019-11-21 12:10:51,271 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 12:10:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:10:51,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 12:10:51,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:10:51,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:10:51,537 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:10:51,613 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:10:51,613 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1220418612] [2019-11-21 12:10:51,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 12:10:51,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2019-11-21 12:10:51,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687903503] [2019-11-21 12:10:51,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:10:51,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:10:51,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:10:51,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:10:51,615 INFO L87 Difference]: Start difference. First operand 92 states and 127 transitions. Second operand 5 states. [2019-11-21 12:10:51,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:10:51,675 INFO L93 Difference]: Finished difference Result 74 states and 96 transitions. [2019-11-21 12:10:51,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:10:51,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-21 12:10:51,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:10:51,677 INFO L225 Difference]: With dead ends: 74 [2019-11-21 12:10:51,677 INFO L226 Difference]: Without dead ends: 72 [2019-11-21 12:10:51,678 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 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 12:10:51,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-11-21 12:10:51,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-11-21 12:10:51,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-11-21 12:10:51,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 94 transitions. [2019-11-21 12:10:51,687 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 94 transitions. Word has length 23 [2019-11-21 12:10:51,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:10:51,688 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 94 transitions. [2019-11-21 12:10:51,688 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:10:51,688 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 94 transitions. [2019-11-21 12:10:51,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 12:10:51,689 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:10:51,689 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:10:51,892 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:10:51,893 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:10:51,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:10:51,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1111503791, now seen corresponding path program 1 times [2019-11-21 12:10:51,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:10:51,895 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1128067392] [2019-11-21 12:10:51,895 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 12:10:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:10:52,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:10:52,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:10:52,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:10:52,147 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:10:52,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:10:52,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1128067392] [2019-11-21 12:10:52,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:10:52,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 12:10:52,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794536697] [2019-11-21 12:10:52,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:10:52,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:10:52,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:10:52,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:10:52,184 INFO L87 Difference]: Start difference. First operand 72 states and 94 transitions. Second operand 5 states. [2019-11-21 12:10:52,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:10:52,232 INFO L93 Difference]: Finished difference Result 94 states and 121 transitions. [2019-11-21 12:10:52,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:10:52,232 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-21 12:10:52,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:10:52,234 INFO L225 Difference]: With dead ends: 94 [2019-11-21 12:10:52,234 INFO L226 Difference]: Without dead ends: 94 [2019-11-21 12:10:52,234 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 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 12:10:52,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-11-21 12:10:52,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 78. [2019-11-21 12:10:52,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-21 12:10:52,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2019-11-21 12:10:52,242 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 25 [2019-11-21 12:10:52,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:10:52,242 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2019-11-21 12:10:52,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:10:52,243 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2019-11-21 12:10:52,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 12:10:52,243 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:10:52,244 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:10:52,446 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:10:52,447 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:10:52,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:10:52,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1440653170, now seen corresponding path program 1 times [2019-11-21 12:10:52,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:10:52,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [294537454] [2019-11-21 12:10:52,449 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 12:10:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:10:52,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 12:10:52,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:10:52,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 12:10:52,724 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:10:52,777 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 12:10:52,777 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [294537454] [2019-11-21 12:10:52,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:10:52,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 12:10:52,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370094401] [2019-11-21 12:10:52,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:10:52,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:10:52,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:10:52,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:10:52,779 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand 6 states. [2019-11-21 12:10:52,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:10:52,846 INFO L93 Difference]: Finished difference Result 77 states and 91 transitions. [2019-11-21 12:10:52,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:10:52,847 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-11-21 12:10:52,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:10:52,849 INFO L225 Difference]: With dead ends: 77 [2019-11-21 12:10:52,849 INFO L226 Difference]: Without dead ends: 77 [2019-11-21 12:10:52,849 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 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 12:10:52,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-11-21 12:10:52,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 70. [2019-11-21 12:10:52,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-11-21 12:10:52,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2019-11-21 12:10:52,856 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 25 [2019-11-21 12:10:52,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:10:52,857 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2019-11-21 12:10:52,857 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:10:52,857 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2019-11-21 12:10:52,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 12:10:52,858 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:10:52,858 INFO L410 BasicCegarLoop]: trace histogram [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 12:10:53,061 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:10:53,062 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:10:53,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:10:53,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1710576442, now seen corresponding path program 1 times [2019-11-21 12:10:53,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:10:53,064 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1754780106] [2019-11-21 12:10:53,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:10:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:10:53,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 12:10:53,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:10:53,372 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:10:53,372 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:10:53,449 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:10:53,450 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1754780106] [2019-11-21 12:10:53,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:10:53,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-21 12:10:53,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929186930] [2019-11-21 12:10:53,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 12:10:53,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:10:53,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 12:10:53,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 12:10:53,452 INFO L87 Difference]: Start difference. First operand 70 states and 84 transitions. Second operand 9 states. [2019-11-21 12:10:53,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:10:53,644 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2019-11-21 12:10:53,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:10:53,646 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2019-11-21 12:10:53,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:10:53,648 INFO L225 Difference]: With dead ends: 69 [2019-11-21 12:10:53,648 INFO L226 Difference]: Without dead ends: 69 [2019-11-21 12:10:53,649 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 12:10:53,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-21 12:10:53,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2019-11-21 12:10:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-11-21 12:10:53,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 82 transitions. [2019-11-21 12:10:53,654 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 82 transitions. Word has length 26 [2019-11-21 12:10:53,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:10:53,654 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 82 transitions. [2019-11-21 12:10:53,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 12:10:53,654 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 82 transitions. [2019-11-21 12:10:53,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-21 12:10:53,655 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:10:53,656 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-21 12:10:53,863 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:10:53,864 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:10:53,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:10:53,865 INFO L82 PathProgramCache]: Analyzing trace with hash 142617433, now seen corresponding path program 1 times [2019-11-21 12:10:53,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:10:53,866 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1138888430] [2019-11-21 12:10:53,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:10:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:10:54,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-21 12:10:54,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:10:54,209 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:10:54,209 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 12:10:54,210 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:10:54,269 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 12:10:54,270 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:10:54,271 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 12:10:54,271 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 12:10:54,271 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:10:54,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:10:54,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:10:54,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:11:00,444 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:11:00,444 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:11:04,815 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:11:04,817 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 12:11:04,821 INFO L168 Benchmark]: Toolchain (without parser) took 232556.11 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 323.0 MB). Free memory was 956.3 MB in the beginning and 1.3 GB in the end (delta: -318.1 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2019-11-21 12:11:04,822 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:11:04,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1069.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-21 12:11:04,823 INFO L168 Benchmark]: Boogie Preprocessor took 104.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-21 12:11:04,824 INFO L168 Benchmark]: RCFGBuilder took 1578.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. [2019-11-21 12:11:04,824 INFO L168 Benchmark]: TraceAbstraction took 229798.22 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 154.7 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -273.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:11:04,827 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1069.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 104.29 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1578.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 229798.22 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 154.7 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -273.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...