./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test5.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_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test5.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/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 a3c246dc22ee025e6722717057cde618bbb130ed ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 08:52:07,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:52:07,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:52:07,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:52:07,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:52:07,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:52:07,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:52:07,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:52:07,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:52:07,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:52:07,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:52:07,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:52:07,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:52:07,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:52:07,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:52:07,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:52:07,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:52:07,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:52:07,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:52:07,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:52:07,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:52:07,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:52:07,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:52:07,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:52:07,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:52:07,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:52:07,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:52:07,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:52:07,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:52:07,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:52:07,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:52:07,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:52:07,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:52:07,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:52:07,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:52:07,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:52:07,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:52:07,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:52:07,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:52:07,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:52:07,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:52:07,935 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-25 08:52:07,959 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:52:07,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:52:07,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:52:07,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:52:07,961 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:52:07,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:52:07,961 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:52:07,961 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:52:07,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:52:07,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:52:07,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:52:07,962 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-25 08:52:07,962 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-25 08:52:07,962 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-25 08:52:07,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:52:07,963 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:52:07,963 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:52:07,963 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:52:07,963 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:52:07,964 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:52:07,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:52:07,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:52:07,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:52:07,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:52:07,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:52:07,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:52:07,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:52:07,965 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:52:07,965 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:52:07,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:52:07,966 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_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/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 -> a3c246dc22ee025e6722717057cde618bbb130ed [2019-11-25 08:52:08,108 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:52:08,118 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:52:08,121 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:52:08,122 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:52:08,122 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:52:08,123 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test5.i [2019-11-25 08:52:08,176 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/bin/uautomizer/data/065cc525a/dabf45cfd648488da2adfdc3233817dd/FLAG7b8133f86 [2019-11-25 08:52:08,659 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:52:08,660 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/sv-benchmarks/c/ldv-memsafety/memleaks_test5.i [2019-11-25 08:52:08,699 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/bin/uautomizer/data/065cc525a/dabf45cfd648488da2adfdc3233817dd/FLAG7b8133f86 [2019-11-25 08:52:09,149 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/bin/uautomizer/data/065cc525a/dabf45cfd648488da2adfdc3233817dd [2019-11-25 08:52:09,151 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:52:09,153 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-25 08:52:09,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:09,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:52:09,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:52:09,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:09" (1/1) ... [2019-11-25 08:52:09,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4edd3c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:09, skipping insertion in model container [2019-11-25 08:52:09,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:09" (1/1) ... [2019-11-25 08:52:09,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:52:09,224 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:09,595 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 08:52:09,596 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [576] [2019-11-25 08:52:09,596 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:52:09,622 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 08:52:09,622 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [607] [2019-11-25 08:52:09,623 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:52:09,627 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 08:52:09,628 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [607] [2019-11-25 08:52:09,628 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:52:09,631 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 08:52:09,632 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [607] [2019-11-25 08:52:09,632 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:52:09,667 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 08:52:09,668 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [706] [2019-11-25 08:52:09,668 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:52:09,688 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 08:52:09,688 INFO L968 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [758] [2019-11-25 08:52:09,688 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:52:09,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:09,718 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-25 08:52:09,744 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:09,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:09,819 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:52:09,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:09,944 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:52:09,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:09 WrapperNode [2019-11-25 08:52:09,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:09,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:52:09,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:52:09,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:52:09,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:09" (1/1) ... [2019-11-25 08:52:09,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:09" (1/1) ... [2019-11-25 08:52:09,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:09" (1/1) ... [2019-11-25 08:52:09,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:09" (1/1) ... [2019-11-25 08:52:10,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:09" (1/1) ... [2019-11-25 08:52:10,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:09" (1/1) ... [2019-11-25 08:52:10,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:09" (1/1) ... [2019-11-25 08:52:10,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:52:10,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:52:10,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:52:10,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:52:10,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/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 08:52:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-25 08:52:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:52:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-25 08:52:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-25 08:52:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-25 08:52:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-25 08:52:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-25 08:52:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-25 08:52:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-25 08:52:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-25 08:52:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-25 08:52:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-25 08:52:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-25 08:52:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-25 08:52:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-25 08:52:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-25 08:52:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-25 08:52:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-25 08:52:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-25 08:52:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-25 08:52:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-25 08:52:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-25 08:52:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-25 08:52:10,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-25 08:52:10,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-25 08:52:10,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-25 08:52:10,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-25 08:52:10,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-25 08:52:10,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-25 08:52:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-25 08:52:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-25 08:52:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-25 08:52:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-25 08:52:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-25 08:52:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-25 08:52:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-25 08:52:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-25 08:52:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-25 08:52:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-25 08:52:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-25 08:52:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-25 08:52:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-25 08:52:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure h5 [2019-11-25 08:52:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure g5 [2019-11-25 08:52:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-25 08:52:10,177 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-25 08:52:10,177 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-25 08:52:10,177 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-25 08:52:10,177 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-25 08:52:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-25 08:52:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-25 08:52:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-25 08:52:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-25 08:52:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-25 08:52:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-25 08:52:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-25 08:52:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-25 08:52:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-25 08:52:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-25 08:52:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-25 08:52:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-25 08:52:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-25 08:52:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-25 08:52:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-25 08:52:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-25 08:52:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-25 08:52:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-25 08:52:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-25 08:52:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-25 08:52:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-25 08:52:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-25 08:52:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-25 08:52:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-25 08:52:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-25 08:52:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-25 08:52:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-25 08:52:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-25 08:52:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-25 08:52:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-25 08:52:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-25 08:52:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-25 08:52:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-25 08:52:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-25 08:52:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-25 08:52:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-25 08:52:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-25 08:52:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-25 08:52:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-25 08:52:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-25 08:52:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-25 08:52:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-25 08:52:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-25 08:52:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-25 08:52:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-25 08:52:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-25 08:52:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-25 08:52:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-25 08:52:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-25 08:52:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-25 08:52:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-25 08:52:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-25 08:52:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-25 08:52:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-25 08:52:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-25 08:52:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-25 08:52:10,187 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-25 08:52:10,187 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-25 08:52:10,187 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-25 08:52:10,188 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-25 08:52:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-25 08:52:10,191 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-25 08:52:10,191 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-25 08:52:10,191 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-25 08:52:10,191 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-25 08:52:10,191 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-25 08:52:10,192 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-25 08:52:10,192 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-25 08:52:10,192 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-25 08:52:10,192 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-25 08:52:10,193 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-25 08:52:10,193 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-25 08:52:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-25 08:52:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-25 08:52:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-25 08:52:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-25 08:52:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-25 08:52:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-25 08:52:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-25 08:52:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-25 08:52:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-25 08:52:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-25 08:52:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-25 08:52:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-25 08:52:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-25 08:52:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-25 08:52:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-25 08:52:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-25 08:52:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-25 08:52:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-25 08:52:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-25 08:52:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-25 08:52:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-25 08:52:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-25 08:52:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-25 08:52:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-25 08:52:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-25 08:52:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-25 08:52:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-25 08:52:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-25 08:52:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-25 08:52:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-25 08:52:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-25 08:52:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-25 08:52:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-25 08:52:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-25 08:52:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-25 08:52:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-25 08:52:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-25 08:52:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-25 08:52:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-25 08:52:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-25 08:52:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-25 08:52:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-25 08:52:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:52:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-25 08:52:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-25 08:52:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-25 08:52:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-25 08:52:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-25 08:52:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-25 08:52:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-25 08:52:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-25 08:52:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-25 08:52:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-25 08:52:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-25 08:52:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-25 08:52:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-25 08:52:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-25 08:52:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:52:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-25 08:52:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-25 08:52:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-25 08:52:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-25 08:52:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-25 08:52:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:52:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:52:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-25 08:52:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-25 08:52:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-25 08:52:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-25 08:52:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-25 08:52:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-25 08:52:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-25 08:52:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-25 08:52:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-25 08:52:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-25 08:52:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-25 08:52:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-25 08:52:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-25 08:52:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-25 08:52:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-25 08:52:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-25 08:52:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-25 08:52:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure h5 [2019-11-25 08:52:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure g5 [2019-11-25 08:52:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-25 08:52:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-25 08:52:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-25 08:52:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:52:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-25 08:52:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:52:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-25 08:52:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-25 08:52:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-25 08:52:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-25 08:52:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-25 08:52:10,907 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-25 08:52:11,302 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-25 08:52:11,672 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:11,673 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-25 08:52:11,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:11 BoogieIcfgContainer [2019-11-25 08:52:11,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:11,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:52:11,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:52:11,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:52:11,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:52:09" (1/3) ... [2019-11-25 08:52:11,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232c36c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:11, skipping insertion in model container [2019-11-25 08:52:11,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:09" (2/3) ... [2019-11-25 08:52:11,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232c36c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:11, skipping insertion in model container [2019-11-25 08:52:11,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:11" (3/3) ... [2019-11-25 08:52:11,681 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test5.i [2019-11-25 08:52:11,689 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:52:11,696 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-25 08:52:11,705 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-25 08:52:11,724 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:52:11,725 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-25 08:52:11,732 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:52:11,732 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:11,732 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:11,732 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:52:11,732 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:11,732 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:52:11,752 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-11-25 08:52:11,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-25 08:52:11,763 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:11,764 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:11,765 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, g5Err2ASSERT_VIOLATIONMEMORY_FREE, g5Err0ASSERT_VIOLATIONMEMORY_FREE, g5Err1ASSERT_VIOLATIONMEMORY_FREE, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:52:11,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:11,771 INFO L82 PathProgramCache]: Analyzing trace with hash -797462538, now seen corresponding path program 1 times [2019-11-25 08:52:11,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:11,782 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1379707783] [2019-11-25 08:52:11,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/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 08:52:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:12,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-25 08:52:12,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:12,162 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 08:52:12,162 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:12,273 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 08:52:12,273 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1379707783] [2019-11-25 08:52:12,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:12,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-25 08:52:12,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208159847] [2019-11-25 08:52:12,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-25 08:52:12,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:12,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-25 08:52:12,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:52:12,295 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 9 states. [2019-11-25 08:52:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:12,403 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-11-25 08:52:12,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:52:12,405 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2019-11-25 08:52:12,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:12,414 INFO L225 Difference]: With dead ends: 33 [2019-11-25 08:52:12,415 INFO L226 Difference]: Without dead ends: 30 [2019-11-25 08:52:12,417 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:52:12,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-25 08:52:12,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-25 08:52:12,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-25 08:52:12,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-25 08:52:12,455 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2019-11-25 08:52:12,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:12,456 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-25 08:52:12,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-25 08:52:12,456 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-25 08:52:12,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-25 08:52:12,457 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:12,458 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] [2019-11-25 08:52:12,660 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:12,662 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, g5Err2ASSERT_VIOLATIONMEMORY_FREE, g5Err0ASSERT_VIOLATIONMEMORY_FREE, g5Err1ASSERT_VIOLATIONMEMORY_FREE, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:52:12,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:12,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1048465454, now seen corresponding path program 1 times [2019-11-25 08:52:12,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:12,665 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1981193104] [2019-11-25 08:52:12,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/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 08:52:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:12,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-25 08:52:12,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:13,118 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 08:52:13,118 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:13,517 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1981193104] [2019-11-25 08:52:13,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:13,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 16 [2019-11-25 08:52:13,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721689697] [2019-11-25 08:52:13,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-25 08:52:13,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:13,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-25 08:52:13,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-11-25 08:52:13,520 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 17 states. [2019-11-25 08:52:13,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:13,925 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-11-25 08:52:13,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-25 08:52:13,926 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 21 [2019-11-25 08:52:13,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:13,927 INFO L225 Difference]: With dead ends: 29 [2019-11-25 08:52:13,927 INFO L226 Difference]: Without dead ends: 29 [2019-11-25 08:52:13,928 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-11-25 08:52:13,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-25 08:52:13,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-25 08:52:13,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-25 08:52:13,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-25 08:52:13,932 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 21 [2019-11-25 08:52:13,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:13,932 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-25 08:52:13,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-25 08:52:13,932 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-25 08:52:13,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-25 08:52:13,933 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:13,933 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:14,134 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:14,134 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, g5Err2ASSERT_VIOLATIONMEMORY_FREE, g5Err0ASSERT_VIOLATIONMEMORY_FREE, g5Err1ASSERT_VIOLATIONMEMORY_FREE, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:52:14,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:14,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1857308936, now seen corresponding path program 1 times [2019-11-25 08:52:14,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:14,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1853542853] [2019-11-25 08:52:14,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/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 08:52:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:14,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-25 08:52:14,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:14,392 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 08:52:14,392 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:14,396 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:14,397 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:14,397 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-25 08:52:14,477 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 08:52:14,477 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:14,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:14,633 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1853542853] [2019-11-25 08:52:14,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:14,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-25 08:52:14,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903072354] [2019-11-25 08:52:14,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-25 08:52:14,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:14,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-25 08:52:14,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:52:14,634 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 9 states. [2019-11-25 08:52:14,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:14,787 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2019-11-25 08:52:14,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:52:14,788 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2019-11-25 08:52:14,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:14,791 INFO L225 Difference]: With dead ends: 45 [2019-11-25 08:52:14,791 INFO L226 Difference]: Without dead ends: 45 [2019-11-25 08:52:14,791 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:52:14,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-25 08:52:14,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2019-11-25 08:52:14,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-25 08:52:14,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2019-11-25 08:52:14,801 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 22 [2019-11-25 08:52:14,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:14,802 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2019-11-25 08:52:14,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-25 08:52:14,802 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2019-11-25 08:52:14,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-25 08:52:14,803 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:14,803 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:15,007 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:15,008 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, g5Err2ASSERT_VIOLATIONMEMORY_FREE, g5Err0ASSERT_VIOLATIONMEMORY_FREE, g5Err1ASSERT_VIOLATIONMEMORY_FREE, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:52:15,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:15,008 INFO L82 PathProgramCache]: Analyzing trace with hash 2144255353, now seen corresponding path program 1 times [2019-11-25 08:52:15,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:15,008 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [778519493] [2019-11-25 08:52:15,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/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 08:52:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:15,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-25 08:52:15,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:15,311 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 08:52:15,311 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:15,396 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 08:52:15,397 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [778519493] [2019-11-25 08:52:15,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:15,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2019-11-25 08:52:15,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481502400] [2019-11-25 08:52:15,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-25 08:52:15,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:15,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-25 08:52:15,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:52:15,398 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 10 states. [2019-11-25 08:52:15,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:15,519 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2019-11-25 08:52:15,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-25 08:52:15,520 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2019-11-25 08:52:15,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:15,522 INFO L225 Difference]: With dead ends: 44 [2019-11-25 08:52:15,522 INFO L226 Difference]: Without dead ends: 43 [2019-11-25 08:52:15,522 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:52:15,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-25 08:52:15,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2019-11-25 08:52:15,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-25 08:52:15,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2019-11-25 08:52:15,532 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 22 [2019-11-25 08:52:15,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:15,532 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2019-11-25 08:52:15,533 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-25 08:52:15,533 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2019-11-25 08:52:15,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-25 08:52:15,533 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:15,534 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 08:52:15,734 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:15,735 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, g5Err2ASSERT_VIOLATIONMEMORY_FREE, g5Err0ASSERT_VIOLATIONMEMORY_FREE, g5Err1ASSERT_VIOLATIONMEMORY_FREE, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:52:15,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:15,735 INFO L82 PathProgramCache]: Analyzing trace with hash 2072621893, now seen corresponding path program 1 times [2019-11-25 08:52:15,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:15,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1594434995] [2019-11-25 08:52:15,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/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 08:52:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:15,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-25 08:52:15,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:15,991 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 08:52:15,991 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:16,257 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 08:52:16,257 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1594434995] [2019-11-25 08:52:16,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:16,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 10 [2019-11-25 08:52:16,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532685738] [2019-11-25 08:52:16,258 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-25 08:52:16,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:16,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-25 08:52:16,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:52:16,259 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 10 states. [2019-11-25 08:52:16,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:16,349 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2019-11-25 08:52:16,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:52:16,350 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2019-11-25 08:52:16,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:16,351 INFO L225 Difference]: With dead ends: 43 [2019-11-25 08:52:16,351 INFO L226 Difference]: Without dead ends: 41 [2019-11-25 08:52:16,351 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:52:16,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-25 08:52:16,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2019-11-25 08:52:16,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-25 08:52:16,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2019-11-25 08:52:16,356 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 24 [2019-11-25 08:52:16,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:16,356 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2019-11-25 08:52:16,356 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-25 08:52:16,356 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2019-11-25 08:52:16,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-25 08:52:16,357 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:16,357 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 08:52:16,557 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:16,558 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, g5Err2ASSERT_VIOLATIONMEMORY_FREE, g5Err0ASSERT_VIOLATIONMEMORY_FREE, g5Err1ASSERT_VIOLATIONMEMORY_FREE, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:52:16,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:16,558 INFO L82 PathProgramCache]: Analyzing trace with hash -714793594, now seen corresponding path program 1 times [2019-11-25 08:52:16,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:16,558 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1428805459] [2019-11-25 08:52:16,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/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 08:52:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:16,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-25 08:52:16,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:16,728 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 08:52:16,728 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:16,849 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 08:52:16,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1428805459] [2019-11-25 08:52:16,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:16,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-25 08:52:16,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897834167] [2019-11-25 08:52:16,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:52:16,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:16,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:52:16,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:52:16,850 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 3 states. [2019-11-25 08:52:16,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:16,884 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2019-11-25 08:52:16,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:52:16,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-25 08:52:16,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:16,885 INFO L225 Difference]: With dead ends: 42 [2019-11-25 08:52:16,886 INFO L226 Difference]: Without dead ends: 28 [2019-11-25 08:52:16,886 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 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 08:52:16,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-25 08:52:16,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-11-25 08:52:16,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-25 08:52:16,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2019-11-25 08:52:16,889 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 24 [2019-11-25 08:52:16,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:16,890 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2019-11-25 08:52:16,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:52:16,890 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2019-11-25 08:52:16,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-25 08:52:16,891 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:16,891 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] [2019-11-25 08:52:17,091 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:17,092 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, g5Err2ASSERT_VIOLATIONMEMORY_FREE, g5Err0ASSERT_VIOLATIONMEMORY_FREE, g5Err1ASSERT_VIOLATIONMEMORY_FREE, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:52:17,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:17,092 INFO L82 PathProgramCache]: Analyzing trace with hash -745239103, now seen corresponding path program 1 times [2019-11-25 08:52:17,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:17,093 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [198000204] [2019-11-25 08:52:17,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7232e2e8-46d3-4b38-be6a-ceb42b7127c5/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 08:52:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:17,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-25 08:52:17,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:17,324 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:17,325 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 08:52:17,325 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:17,340 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-25 08:52:17,341 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:17,343 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 08:52:17,343 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-25 08:52:17,343 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:17,351 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:17,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:17,376 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:25,635 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 08:52:25,635 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:32,112 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:32,113 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-25 08:52:32,116 INFO L168 Benchmark]: Toolchain (without parser) took 22963.56 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 296.7 MB). Free memory was 944.7 MB in the beginning and 1.3 GB in the end (delta: -335.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:32,116 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:32,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -116.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:32,118 INFO L168 Benchmark]: Boogie Preprocessor took 132.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:32,118 INFO L168 Benchmark]: RCFGBuilder took 1595.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 944.1 MB in the end (delta: 110.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:32,119 INFO L168 Benchmark]: TraceAbstraction took 20439.98 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 944.1 MB in the beginning and 1.3 GB in the end (delta: -336.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:32,121 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 791.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -116.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 132.96 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1595.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 944.1 MB in the end (delta: 110.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 20439.98 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 944.1 MB in the beginning and 1.3 GB in the end (delta: -336.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...