./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b5699aa Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6943849e6f46346ed71c5d8e09de50318fefe6a ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-25 08:51:18,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:18,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:18,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:18,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:18,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:18,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:18,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:18,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:18,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:18,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:18,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:18,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:18,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:18,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:18,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:18,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:18,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:18,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:18,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:18,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:18,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:18,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:18,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:18,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:18,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:18,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:18,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:18,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:18,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:18,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:18,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:18,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:18,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:18,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:18,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:18,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:18,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:18,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:18,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:18,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:18,461 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-25 08:51:18,485 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:18,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:18,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:18,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:18,489 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:18,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:18,489 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:51:18,489 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:51:18,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:51:18,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:51:18,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:18,491 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-25 08:51:18,491 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-25 08:51:18,491 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-25 08:51:18,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:51:18,492 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:51:18,492 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:51:18,492 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:18,492 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:51:18,492 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:18,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:18,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:18,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:51:18,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:51:18,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:18,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:18,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:51:18,494 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:51:18,494 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:51:18,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:51:18,495 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6943849e6f46346ed71c5d8e09de50318fefe6a [2019-11-25 08:51:18,663 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:18,677 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:18,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:18,682 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:18,682 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:18,683 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2019-11-25 08:51:18,745 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/data/ea304115c/1a5428f543a94481831983818a2899dd/FLAG2e550ab54 [2019-11-25 08:51:19,291 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:19,292 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2019-11-25 08:51:19,315 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/data/ea304115c/1a5428f543a94481831983818a2899dd/FLAG2e550ab54 [2019-11-25 08:51:19,598 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/data/ea304115c/1a5428f543a94481831983818a2899dd [2019-11-25 08:51:19,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:19,602 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-25 08:51:19,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:19,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:19,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:19,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:19" (1/1) ... [2019-11-25 08:51:19,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e433afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:19, skipping insertion in model container [2019-11-25 08:51:19,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:19" (1/1) ... [2019-11-25 08:51:19,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:19,682 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:20,110 INFO L965 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 [2019-11-25 08:51:20,110 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [576] [2019-11-25 08:51:20,111 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:20,121 INFO L965 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 [2019-11-25 08:51:20,122 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [607] [2019-11-25 08:51:20,122 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:20,124 INFO L965 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 [2019-11-25 08:51:20,125 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [607] [2019-11-25 08:51:20,125 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:20,127 INFO L965 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 [2019-11-25 08:51:20,128 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [607] [2019-11-25 08:51:20,128 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:20,150 INFO L965 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 [2019-11-25 08:51:20,150 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [706] [2019-11-25 08:51:20,150 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:20,162 INFO L965 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 [2019-11-25 08:51:20,162 INFO L968 CHandler]: at location: C: (struct A20*)ldv_malloc(sizeof(struct A20)) [772] [2019-11-25 08:51:20,162 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:20,165 INFO L965 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 [2019-11-25 08:51:20,165 INFO L968 CHandler]: at location: C: (struct A20 *)( (char *)__mptr - ((size_t) &((struct A20 *)0)->dev) ) [780] [2019-11-25 08:51:20,166 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:20,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:20,187 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-25 08:51:20,214 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:20,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:20,294 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:20,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:20,450 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:20,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:20 WrapperNode [2019-11-25 08:51:20,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:20,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:20,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:20,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:20,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:20" (1/1) ... [2019-11-25 08:51:20,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:20" (1/1) ... [2019-11-25 08:51:20,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:20" (1/1) ... [2019-11-25 08:51:20,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:20" (1/1) ... [2019-11-25 08:51:20,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:20" (1/1) ... [2019-11-25 08:51:20,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:20" (1/1) ... [2019-11-25 08:51:20,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:20" (1/1) ... [2019-11-25 08:51:20,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:20,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:20,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:20,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:20,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/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 [2019-11-25 08:51:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-25 08:51:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-25 08:51:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-25 08:51:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-25 08:51:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-25 08:51:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-25 08:51:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-25 08:51:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-25 08:51:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-25 08:51:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-25 08:51:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-25 08:51:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-25 08:51:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-25 08:51:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-25 08:51:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-25 08:51:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-25 08:51:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-25 08:51:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-25 08:51:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-25 08:51:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-25 08:51:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-25 08:51:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-25 08:51:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-25 08:51:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-25 08:51:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-25 08:51:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-25 08:51:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-25 08:51:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-25 08:51:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-25 08:51:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-25 08:51:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-25 08:51:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-25 08:51:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-25 08:51:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-25 08:51:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-25 08:51:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-25 08:51:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-25 08:51:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-25 08:51:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-25 08:51:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-25 08:51:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-25 08:51:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_device [2019-11-25 08:51:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_device [2019-11-25 08:51:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_deregister_device [2019-11-25 08:51:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_20 [2019-11-25 08:51:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure free_20 [2019-11-25 08:51:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-25 08:51:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-25 08:51:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-25 08:51:20,631 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-25 08:51:20,631 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-25 08:51:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-25 08:51:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-25 08:51:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-25 08:51:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-25 08:51:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-25 08:51:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-25 08:51:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-25 08:51:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-25 08:51:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-25 08:51:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-25 08:51:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-25 08:51:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-25 08:51:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-25 08:51:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-25 08:51:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-25 08:51:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-25 08:51:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-25 08:51:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-25 08:51:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-25 08:51:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-25 08:51:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-25 08:51:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-25 08:51:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-25 08:51:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-25 08:51:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-25 08:51:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-25 08:51:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-25 08:51:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-25 08:51:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-25 08:51:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-25 08:51:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-25 08:51:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-25 08:51:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-25 08:51:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-25 08:51:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-25 08:51:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-25 08:51:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-25 08:51:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-25 08:51:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-25 08:51:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-25 08:51:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-25 08:51:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-25 08:51:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-25 08:51:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-25 08:51:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-25 08:51:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-25 08:51:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-25 08:51:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-25 08:51:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-25 08:51:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-25 08:51:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-25 08:51:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-25 08:51:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-25 08:51:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-25 08:51:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-25 08:51:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-25 08:51:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-25 08:51:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-25 08:51:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-25 08:51:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-25 08:51:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-25 08:51:20,641 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-25 08:51:20,641 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-25 08:51:20,641 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-25 08:51:20,641 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-25 08:51:20,641 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-25 08:51:20,641 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-25 08:51:20,642 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-25 08:51:20,642 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-25 08:51:20,642 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-25 08:51:20,642 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-25 08:51:20,642 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-25 08:51:20,642 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-25 08:51:20,643 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-25 08:51:20,643 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-25 08:51:20,643 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-25 08:51:20,643 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-25 08:51:20,643 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-25 08:51:20,643 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-25 08:51:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-25 08:51:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-25 08:51:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-25 08:51:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-25 08:51:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-25 08:51:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-25 08:51:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-25 08:51:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-25 08:51:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-25 08:51:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-25 08:51:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-25 08:51:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-25 08:51:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-25 08:51:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-25 08:51:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-25 08:51:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-25 08:51:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-25 08:51:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-25 08:51:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-25 08:51:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-25 08:51:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-25 08:51:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-25 08:51:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-25 08:51:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-25 08:51:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-25 08:51:20,648 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-25 08:51:20,648 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-25 08:51:20,648 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-25 08:51:20,648 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-25 08:51:20,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-25 08:51:20,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-25 08:51:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-25 08:51:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-25 08:51:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-25 08:51:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-25 08:51:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:51:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-25 08:51:20,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-25 08:51:20,650 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-25 08:51:20,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-25 08:51:20,650 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-25 08:51:20,650 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-25 08:51:20,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-25 08:51:20,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-25 08:51:20,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-25 08:51:20,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-25 08:51:20,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-25 08:51:20,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-25 08:51:20,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-25 08:51:20,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-25 08:51:20,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:51:20,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-25 08:51:20,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-25 08:51:20,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-25 08:51:20,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-25 08:51:20,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-25 08:51:20,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:51:20,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:51:20,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-25 08:51:20,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-25 08:51:20,653 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-25 08:51:20,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-25 08:51:20,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-25 08:51:20,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-25 08:51:20,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-25 08:51:20,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-25 08:51:20,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-25 08:51:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-25 08:51:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-25 08:51:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-25 08:51:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-25 08:51:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-25 08:51:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-25 08:51:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-25 08:51:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-25 08:51:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_device [2019-11-25 08:51:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_device [2019-11-25 08:51:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_deregister_device [2019-11-25 08:51:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_20 [2019-11-25 08:51:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure free_20 [2019-11-25 08:51:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-25 08:51:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-25 08:51:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-25 08:51:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-25 08:51:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-25 08:51:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-25 08:51:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-25 08:51:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-25 08:51:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-25 08:51:21,303 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-25 08:51:21,733 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-25 08:51:22,111 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:22,116 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-25 08:51:22,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:22 BoogieIcfgContainer [2019-11-25 08:51:22,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:22,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:51:22,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:51:22,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:51:22,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:51:19" (1/3) ... [2019-11-25 08:51:22,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104467d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:22, skipping insertion in model container [2019-11-25 08:51:22,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:20" (2/3) ... [2019-11-25 08:51:22,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104467d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:22, skipping insertion in model container [2019-11-25 08:51:22,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:22" (3/3) ... [2019-11-25 08:51:22,132 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test20-2.i [2019-11-25 08:51:22,142 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:51:22,151 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-25 08:51:22,163 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-25 08:51:22,185 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:51:22,185 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-25 08:51:22,185 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:51:22,186 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:22,186 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:22,187 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:51:22,196 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:22,196 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:51:22,217 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-25 08:51:22,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-25 08:51:22,227 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:22,228 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:22,228 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:51:22,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:22,234 INFO L82 PathProgramCache]: Analyzing trace with hash -2108151956, now seen corresponding path program 1 times [2019-11-25 08:51:22,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:22,246 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [178035313] [2019-11-25 08:51:22,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/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 [2019-11-25 08:51:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:22,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:51:22,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:22,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:22,616 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:22,780 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [178035313] [2019-11-25 08:51:22,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:22,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-25 08:51:22,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874881722] [2019-11-25 08:51:22,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:51:22,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:22,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:51:22,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:51:22,803 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 5 states. [2019-11-25 08:51:22,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:22,850 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2019-11-25 08:51:22,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:51:22,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-11-25 08:51:22,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:22,863 INFO L225 Difference]: With dead ends: 50 [2019-11-25 08:51:22,863 INFO L226 Difference]: Without dead ends: 47 [2019-11-25 08:51:22,865 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:51:22,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-25 08:51:22,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2019-11-25 08:51:22,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-25 08:51:22,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2019-11-25 08:51:22,907 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 24 [2019-11-25 08:51:22,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:22,908 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2019-11-25 08:51:22,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:51:22,908 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2019-11-25 08:51:22,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-25 08:51:22,909 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:22,910 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:23,113 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:23,114 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:51:23,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:23,114 INFO L82 PathProgramCache]: Analyzing trace with hash -600600147, now seen corresponding path program 1 times [2019-11-25 08:51:23,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:23,115 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1155252946] [2019-11-25 08:51:23,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/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 [2019-11-25 08:51:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:23,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-25 08:51:23,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:23,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:23,569 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:23,770 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1155252946] [2019-11-25 08:51:23,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:23,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-11-25 08:51:23,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285386602] [2019-11-25 08:51:23,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-25 08:51:23,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:23,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-25 08:51:23,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:51:23,774 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand 9 states. [2019-11-25 08:51:24,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:24,282 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2019-11-25 08:51:24,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-25 08:51:24,283 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-25 08:51:24,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:24,284 INFO L225 Difference]: With dead ends: 60 [2019-11-25 08:51:24,284 INFO L226 Difference]: Without dead ends: 60 [2019-11-25 08:51:24,286 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2019-11-25 08:51:24,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-11-25 08:51:24,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 55. [2019-11-25 08:51:24,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-25 08:51:24,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2019-11-25 08:51:24,305 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 24 [2019-11-25 08:51:24,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:24,305 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2019-11-25 08:51:24,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-25 08:51:24,306 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2019-11-25 08:51:24,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-25 08:51:24,307 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:24,307 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:24,512 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:24,513 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:51:24,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:24,513 INFO L82 PathProgramCache]: Analyzing trace with hash 976042921, now seen corresponding path program 1 times [2019-11-25 08:51:24,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:24,514 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2128160221] [2019-11-25 08:51:24,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/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 [2019-11-25 08:51:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:24,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-25 08:51:24,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:24,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:24,879 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:25,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:25,166 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2128160221] [2019-11-25 08:51:25,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:25,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2019-11-25 08:51:25,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888727881] [2019-11-25 08:51:25,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-25 08:51:25,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:25,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-25 08:51:25,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:51:25,168 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 13 states. [2019-11-25 08:51:25,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:25,409 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2019-11-25 08:51:25,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-25 08:51:25,410 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2019-11-25 08:51:25,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:25,412 INFO L225 Difference]: With dead ends: 55 [2019-11-25 08:51:25,412 INFO L226 Difference]: Without dead ends: 55 [2019-11-25 08:51:25,412 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2019-11-25 08:51:25,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-25 08:51:25,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2019-11-25 08:51:25,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-25 08:51:25,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2019-11-25 08:51:25,421 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 28 [2019-11-25 08:51:25,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:25,422 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2019-11-25 08:51:25,422 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-25 08:51:25,422 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2019-11-25 08:51:25,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-25 08:51:25,424 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:25,424 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:25,627 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:25,628 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:51:25,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:25,628 INFO L82 PathProgramCache]: Analyzing trace with hash 192559894, now seen corresponding path program 1 times [2019-11-25 08:51:25,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:25,629 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1867021294] [2019-11-25 08:51:25,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/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 [2019-11-25 08:51:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:25,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-25 08:51:25,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:26,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:26,292 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:26,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:26,813 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1867021294] [2019-11-25 08:51:26,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:26,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 20 [2019-11-25 08:51:26,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299277630] [2019-11-25 08:51:26,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-11-25 08:51:26,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:26,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-11-25 08:51:26,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2019-11-25 08:51:26,815 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 21 states. [2019-11-25 08:51:27,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:27,509 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2019-11-25 08:51:27,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-25 08:51:27,511 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 29 [2019-11-25 08:51:27,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:27,512 INFO L225 Difference]: With dead ends: 53 [2019-11-25 08:51:27,513 INFO L226 Difference]: Without dead ends: 53 [2019-11-25 08:51:27,513 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=589, Unknown=0, NotChecked=0, Total=702 [2019-11-25 08:51:27,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-25 08:51:27,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-11-25 08:51:27,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-25 08:51:27,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2019-11-25 08:51:27,520 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 29 [2019-11-25 08:51:27,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:27,521 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2019-11-25 08:51:27,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-11-25 08:51:27,521 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2019-11-25 08:51:27,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-25 08:51:27,522 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:27,522 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:27,723 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:27,724 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:51:27,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:27,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1674389835, now seen corresponding path program 1 times [2019-11-25 08:51:27,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:27,725 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1205841362] [2019-11-25 08:51:27,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/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 [2019-11-25 08:51:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:27,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-25 08:51:27,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:28,016 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 [2019-11-25 08:51:28,017 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:28,020 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:28,020 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:51:28,020 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-25 08:51:28,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:28,186 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:28,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:28,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1205841362] [2019-11-25 08:51:28,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:28,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 13 [2019-11-25 08:51:28,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826646538] [2019-11-25 08:51:28,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-25 08:51:28,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:28,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-25 08:51:28,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2019-11-25 08:51:28,459 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 14 states. [2019-11-25 08:51:28,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:28,912 INFO L93 Difference]: Finished difference Result 71 states and 73 transitions. [2019-11-25 08:51:28,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-25 08:51:28,913 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 30 [2019-11-25 08:51:28,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:28,914 INFO L225 Difference]: With dead ends: 71 [2019-11-25 08:51:28,914 INFO L226 Difference]: Without dead ends: 71 [2019-11-25 08:51:28,915 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2019-11-25 08:51:28,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-25 08:51:28,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2019-11-25 08:51:28,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-11-25 08:51:28,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2019-11-25 08:51:28,922 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 30 [2019-11-25 08:51:28,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:28,923 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2019-11-25 08:51:28,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-25 08:51:28,923 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2019-11-25 08:51:28,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-25 08:51:28,925 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:28,925 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:29,125 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:29,126 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:51:29,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:29,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1885740748, now seen corresponding path program 1 times [2019-11-25 08:51:29,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:29,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [523603776] [2019-11-25 08:51:29,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/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 [2019-11-25 08:51:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:29,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-25 08:51:29,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:29,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:29,405 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:29,540 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [523603776] [2019-11-25 08:51:29,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:29,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2019-11-25 08:51:29,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263142107] [2019-11-25 08:51:29,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-25 08:51:29,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:29,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-25 08:51:29,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:51:29,542 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand 13 states. [2019-11-25 08:51:29,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:29,829 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2019-11-25 08:51:29,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-25 08:51:29,829 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2019-11-25 08:51:29,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:29,831 INFO L225 Difference]: With dead ends: 71 [2019-11-25 08:51:29,831 INFO L226 Difference]: Without dead ends: 71 [2019-11-25 08:51:29,831 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2019-11-25 08:51:29,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-25 08:51:29,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 52. [2019-11-25 08:51:29,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-25 08:51:29,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2019-11-25 08:51:29,838 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 30 [2019-11-25 08:51:29,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:29,838 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2019-11-25 08:51:29,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-25 08:51:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2019-11-25 08:51:29,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-25 08:51:29,841 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:29,841 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:30,044 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:30,045 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:51:30,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:30,045 INFO L82 PathProgramCache]: Analyzing trace with hash 844909557, now seen corresponding path program 1 times [2019-11-25 08:51:30,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:30,045 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1292610176] [2019-11-25 08:51:30,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/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 [2019-11-25 08:51:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:30,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-25 08:51:30,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:30,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:30,265 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:30,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:30,401 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1292610176] [2019-11-25 08:51:30,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:30,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-25 08:51:30,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126572843] [2019-11-25 08:51:30,402 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:51:30,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:30,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:51:30,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:51:30,403 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 3 states. [2019-11-25 08:51:30,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:30,463 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2019-11-25 08:51:30,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:51:30,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-11-25 08:51:30,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:30,465 INFO L225 Difference]: With dead ends: 60 [2019-11-25 08:51:30,465 INFO L226 Difference]: Without dead ends: 45 [2019-11-25 08:51:30,465 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:51:30,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-25 08:51:30,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2019-11-25 08:51:30,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-25 08:51:30,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2019-11-25 08:51:30,469 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 29 [2019-11-25 08:51:30,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:30,469 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2019-11-25 08:51:30,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:51:30,469 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2019-11-25 08:51:30,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-25 08:51:30,470 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:30,470 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:30,677 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:30,678 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:51:30,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:30,678 INFO L82 PathProgramCache]: Analyzing trace with hash -548127480, now seen corresponding path program 1 times [2019-11-25 08:51:30,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:30,678 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [115619333] [2019-11-25 08:51:30,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9094af7f-c461-48cd-9212-56ee5bafb14a/bin/uautomizer/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 [2019-11-25 08:51:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:30,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 27 conjunts are in the unsatisfiable core [2019-11-25 08:51:30,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:30,949 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:30,949 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 [2019-11-25 08:51:30,950 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:30,963 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-25 08:51:30,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:30,966 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. [2019-11-25 08:51:30,966 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-25 08:51:30,966 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:30,971 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:30,981 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:30,986 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:31,089 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2019-11-25 08:51:31,089 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:31,092 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:31,092 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. [2019-11-25 08:51:31,092 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2019-11-25 08:51:31,099 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:51:31,188 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-25 08:51:31,189 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:51:31,191 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:51:31,191 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:51:31,191 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2019-11-25 08:51:43,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:43,367 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:48,592 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:51:48,593 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-25 08:51:48,596 INFO L168 Benchmark]: Toolchain (without parser) took 28994.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 943.4 MB in the beginning and 976.2 MB in the end (delta: -32.8 MB). Peak memory consumption was 145.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:48,597 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:48,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 849.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -115.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:48,598 INFO L168 Benchmark]: Boogie Preprocessor took 101.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:48,598 INFO L168 Benchmark]: RCFGBuilder took 1563.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 938.5 MB in the end (delta: 114.6 MB). Peak memory consumption was 114.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:48,599 INFO L168 Benchmark]: TraceAbstraction took 26474.43 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 938.5 MB in the beginning and 976.2 MB in the end (delta: -37.8 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:48,604 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 849.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -115.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 101.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1563.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 938.5 MB in the end (delta: 114.6 MB). Peak memory consumption was 114.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26474.43 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 938.5 MB in the beginning and 976.2 MB in the end (delta: -37.8 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...