./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test11_2.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test11_2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 238bdb5f7d99ba2e1fec6ce0d5e4dc0227502909 --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 11:47:41,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 11:47:41,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 11:47:41,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 11:47:41,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 11:47:41,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 11:47:41,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 11:47:41,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 11:47:41,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 11:47:41,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 11:47:41,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 11:47:41,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 11:47:41,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 11:47:41,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 11:47:41,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 11:47:41,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 11:47:41,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 11:47:41,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 11:47:41,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 11:47:41,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 11:47:41,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 11:47:41,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 11:47:41,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 11:47:41,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 11:47:41,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 11:47:41,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 11:47:41,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 11:47:41,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 11:47:41,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 11:47:41,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 11:47:41,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 11:47:41,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 11:47:41,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 11:47:41,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 11:47:41,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 11:47:41,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 11:47:41,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 11:47:41,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 11:47:41,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 11:47:41,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 11:47:41,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 11:47:41,190 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 11:47:41,213 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 11:47:41,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 11:47:41,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 11:47:41,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 11:47:41,217 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 11:47:41,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 11:47:41,218 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 11:47:41,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 11:47:41,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 11:47:41,219 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 11:47:41,220 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 11:47:41,220 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 11:47:41,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 11:47:41,221 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 11:47:41,221 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:41,221 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 11:47:41,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 11:47:41,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 11:47:41,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 11:47:41,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 11:47:41,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:47:41,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 11:47:41,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 11:47:41,223 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 11:47:41,223 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 11:47:41,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 11:47:41,224 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 238bdb5f7d99ba2e1fec6ce0d5e4dc0227502909 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 11:47:41,546 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 11:47:41,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 11:47:41,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 11:47:41,564 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 11:47:41,565 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 11:47:41,565 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test11_2.i [2019-11-21 11:47:41,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79218cbaf/8065a946294f43cba31cfbe1ce7f7853/FLAGb70a1bc69 [2019-11-21 11:47:42,174 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 11:47:42,175 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test11_2.i [2019-11-21 11:47:42,209 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79218cbaf/8065a946294f43cba31cfbe1ce7f7853/FLAGb70a1bc69 [2019-11-21 11:47:42,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79218cbaf/8065a946294f43cba31cfbe1ce7f7853 [2019-11-21 11:47:42,479 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 11:47:42,481 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 11:47:42,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 11:47:42,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 11:47:42,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 11:47:42,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:47:42" (1/1) ... [2019-11-21 11:47:42,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c177520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:42, skipping insertion in model container [2019-11-21 11:47:42,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:47:42" (1/1) ... [2019-11-21 11:47:42,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 11:47:42,559 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:47:43,085 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:43,086 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 11:47:43,086 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:43,110 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:43,111 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 11:47:43,111 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:43,116 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:43,118 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 11:47:43,118 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:43,122 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:43,123 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 11:47:43,123 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:43,164 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:43,165 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 11:47:43,165 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:43,189 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:43,190 INFO L969 CHandler]: at location: C: (struct Data11*)ldv_malloc(sizeof(struct Data11)) [787] [2019-11-21 11:47:43,190 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:43,201 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:43,202 INFO L969 CHandler]: at location: C: (struct Data11*)ldv_i2c_get_clientdata(client) [797] [2019-11-21 11:47:43,202 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:43,204 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:43,205 INFO L969 CHandler]: at location: C: (struct ldv_i2c_client *)ldv_malloc(sizeof(struct ldv_i2c_client)) [803] [2019-11-21 11:47:43,205 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:43,206 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:43,207 INFO L969 CHandler]: at location: C: (struct ldv_m88ts2022_config *) ldv_malloc(sizeof(struct ldv_m88ts2022_config)) [805-806] [2019-11-21 11:47:43,207 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:43,210 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:43,211 INFO L969 CHandler]: at location: C: (struct ldv_dvb_frontend *) ldv_malloc(sizeof(struct ldv_dvb_frontend)) [809-810] [2019-11-21 11:47:43,213 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:43,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:47:43,244 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 11:47:43,266 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:47:43,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:47:43,372 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 11:47:43,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:47:43,525 INFO L205 MainTranslator]: Completed translation [2019-11-21 11:47:43,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:43 WrapperNode [2019-11-21 11:47:43,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 11:47:43,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 11:47:43,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 11:47:43,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 11:47:43,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:43" (1/1) ... [2019-11-21 11:47:43,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:43" (1/1) ... [2019-11-21 11:47:43,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:43" (1/1) ... [2019-11-21 11:47:43,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:43" (1/1) ... [2019-11-21 11:47:43,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:43" (1/1) ... [2019-11-21 11:47:43,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:43" (1/1) ... [2019-11-21 11:47:43,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:43" (1/1) ... [2019-11-21 11:47:43,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 11:47:43,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 11:47:43,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 11:47:43,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 11:47:43,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:47:43,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 11:47:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 11:47:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:47:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 11:47:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 11:47:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 11:47:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 11:47:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 11:47:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 11:47:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 11:47:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 11:47:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 11:47:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:47:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 11:47:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 11:47:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 11:47:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 11:47:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 11:47:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 11:47:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 11:47:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 11:47:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 11:47:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 11:47:43,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 11:47:43,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 11:47:43,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 11:47:43,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 11:47:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 11:47:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 11:47:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 11:47:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 11:47:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 11:47:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 11:47:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 11:47:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 11:47:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 11:47:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 11:47:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 11:47:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 11:47:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 11:47:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 11:47:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_i2c_get_clientdata [2019-11-21 11:47:43,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_i2c_set_clientdata [2019-11-21 11:47:43,701 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_3_11 [2019-11-21 11:47:43,701 INFO L138 BoogieDeclarations]: Found implementation of procedure free_11 [2019-11-21 11:47:43,702 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 11:47:43,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 11:47:43,702 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 11:47:43,702 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 11:47:43,703 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 11:47:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 11:47:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 11:47:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 11:47:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 11:47:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 11:47:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 11:47:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 11:47:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 11:47:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 11:47:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 11:47:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 11:47:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 11:47:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 11:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 11:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 11:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 11:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 11:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 11:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 11:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 11:47:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 11:47:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 11:47:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 11:47:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 11:47:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 11:47:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 11:47:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 11:47:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 11:47:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 11:47:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 11:47:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 11:47:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 11:47:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 11:47:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 11:47:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 11:47:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 11:47:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 11:47:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 11:47:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 11:47:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 11:47:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 11:47:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 11:47:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 11:47:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 11:47:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 11:47:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 11:47:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 11:47:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 11:47:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 11:47:43,712 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 11:47:43,715 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 11:47:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 11:47:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 11:47:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 11:47:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 11:47:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 11:47:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 11:47:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 11:47:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 11:47:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 11:47:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 11:47:43,718 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 11:47:43,718 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 11:47:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 11:47:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 11:47:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 11:47:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 11:47:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 11:47:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 11:47:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 11:47:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 11:47:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 11:47:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 11:47:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 11:47:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 11:47:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 11:47:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 11:47:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 11:47:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 11:47:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 11:47:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 11:47:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 11:47:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 11:47:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 11:47:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 11:47:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 11:47:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 11:47:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 11:47:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 11:47:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 11:47:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 11:47:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 11:47:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 11:47:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 11:47:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 11:47:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 11:47:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 11:47:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 11:47:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 11:47:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 11:47:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 11:47:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 11:47:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 11:47:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 11:47:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 11:47:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 11:47:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 11:47:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 11:47:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 11:47:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 11:47:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 11:47:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 11:47:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 11:47:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 11:47:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 11:47:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 11:47:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 11:47:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 11:47:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:47:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 11:47:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 11:47:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 11:47:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 11:47:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 11:47:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 11:47:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 11:47:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 11:47:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 11:47:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 11:47:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 11:47:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 11:47:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 11:47:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 11:47:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 11:47:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 11:47:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 11:47:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 11:47:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 11:47:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 11:47:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 11:47:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:47:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 11:47:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 11:47:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 11:47:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 11:47:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 11:47:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 11:47:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 11:47:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 11:47:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 11:47:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 11:47:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 11:47:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 11:47:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 11:47:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 11:47:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_i2c_get_clientdata [2019-11-21 11:47:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_i2c_set_clientdata [2019-11-21 11:47:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_3_11 [2019-11-21 11:47:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure free_11 [2019-11-21 11:47:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 11:47:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 11:47:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 11:47:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 11:47:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 11:47:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 11:47:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 11:47:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 11:47:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 11:47:43,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 11:47:44,395 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:47:44,788 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:47:45,323 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 11:47:45,324 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 11:47:45,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:47:45 BoogieIcfgContainer [2019-11-21 11:47:45,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 11:47:45,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 11:47:45,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 11:47:45,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 11:47:45,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:47:42" (1/3) ... [2019-11-21 11:47:45,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2cc8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:47:45, skipping insertion in model container [2019-11-21 11:47:45,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:43" (2/3) ... [2019-11-21 11:47:45,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2cc8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:47:45, skipping insertion in model container [2019-11-21 11:47:45,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:47:45" (3/3) ... [2019-11-21 11:47:45,345 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test11_2.i [2019-11-21 11:47:45,357 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 11:47:45,369 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 93 error locations. [2019-11-21 11:47:45,383 INFO L249 AbstractCegarLoop]: Starting to check reachability of 93 error locations. [2019-11-21 11:47:45,408 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 11:47:45,408 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 11:47:45,408 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 11:47:45,409 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 11:47:45,411 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 11:47:45,412 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 11:47:45,412 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 11:47:45,412 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 11:47:45,444 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2019-11-21 11:47:45,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 11:47:45,457 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:45,458 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:47:45,459 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, alloc_3_11Err4REQUIRES_VIOLATION, alloc_3_11Err2REQUIRES_VIOLATION, alloc_3_11Err3REQUIRES_VIOLATION, alloc_3_11Err1REQUIRES_VIOLATION, alloc_3_11Err5REQUIRES_VIOLATION, alloc_3_11Err0REQUIRES_VIOLATION]=== [2019-11-21 11:47:45,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:45,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1172166147, now seen corresponding path program 1 times [2019-11-21 11:47:45,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:45,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1666407831] [2019-11-21 11:47:45,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:45,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:47:45,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:47:45,954 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:46,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:47:46,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1666407831] [2019-11-21 11:47:46,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:47:46,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 11:47:46,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958227761] [2019-11-21 11:47:46,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:47:46,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:46,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:47:46,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:46,133 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 5 states. [2019-11-21 11:47:46,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:47:46,332 INFO L93 Difference]: Finished difference Result 146 states and 167 transitions. [2019-11-21 11:47:46,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:47:46,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 11:47:46,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:47:46,355 INFO L225 Difference]: With dead ends: 146 [2019-11-21 11:47:46,355 INFO L226 Difference]: Without dead ends: 143 [2019-11-21 11:47:46,359 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:46,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-21 11:47:46,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 109. [2019-11-21 11:47:46,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-21 11:47:46,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2019-11-21 11:47:46,481 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 16 [2019-11-21 11:47:46,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:47:46,482 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2019-11-21 11:47:46,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:47:46,482 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2019-11-21 11:47:46,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 11:47:46,486 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:46,486 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:47:46,691 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:46,692 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, alloc_3_11Err4REQUIRES_VIOLATION, alloc_3_11Err2REQUIRES_VIOLATION, alloc_3_11Err3REQUIRES_VIOLATION, alloc_3_11Err1REQUIRES_VIOLATION, alloc_3_11Err5REQUIRES_VIOLATION, alloc_3_11Err0REQUIRES_VIOLATION]=== [2019-11-21 11:47:46,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:46,693 INFO L82 PathProgramCache]: Analyzing trace with hash 570644188, now seen corresponding path program 1 times [2019-11-21 11:47:46,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:46,695 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1704230906] [2019-11-21 11:47:46,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:46,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 11:47:46,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:46,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:47:46,968 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:47,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:47:47,059 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1704230906] [2019-11-21 11:47:47,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:47:47,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 11:47:47,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21425301] [2019-11-21 11:47:47,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 11:47:47,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:47,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 11:47:47,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 11:47:47,064 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand 3 states. [2019-11-21 11:47:47,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:47:47,290 INFO L93 Difference]: Finished difference Result 158 states and 182 transitions. [2019-11-21 11:47:47,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 11:47:47,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-21 11:47:47,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:47:47,293 INFO L225 Difference]: With dead ends: 158 [2019-11-21 11:47:47,293 INFO L226 Difference]: Without dead ends: 155 [2019-11-21 11:47:47,294 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 11:47:47,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-11-21 11:47:47,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 105. [2019-11-21 11:47:47,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-21 11:47:47,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 113 transitions. [2019-11-21 11:47:47,308 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 113 transitions. Word has length 16 [2019-11-21 11:47:47,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:47:47,309 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 113 transitions. [2019-11-21 11:47:47,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 11:47:47,309 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 113 transitions. [2019-11-21 11:47:47,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-21 11:47:47,310 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:47,310 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:47:47,513 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:47,515 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, alloc_3_11Err4REQUIRES_VIOLATION, alloc_3_11Err2REQUIRES_VIOLATION, alloc_3_11Err3REQUIRES_VIOLATION, alloc_3_11Err1REQUIRES_VIOLATION, alloc_3_11Err5REQUIRES_VIOLATION, alloc_3_11Err0REQUIRES_VIOLATION]=== [2019-11-21 11:47:47,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:47,515 INFO L82 PathProgramCache]: Analyzing trace with hash 184597210, now seen corresponding path program 1 times [2019-11-21 11:47:47,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:47,517 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [158147342] [2019-11-21 11:47:47,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:47,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:47:47,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:47,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:47,819 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:47,862 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:47,863 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [158147342] [2019-11-21 11:47:47,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:47:47,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-21 11:47:47,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993873777] [2019-11-21 11:47:47,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:47:47,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:47,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:47:47,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:47,865 INFO L87 Difference]: Start difference. First operand 105 states and 113 transitions. Second operand 5 states. [2019-11-21 11:47:47,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:47:47,900 INFO L93 Difference]: Finished difference Result 104 states and 112 transitions. [2019-11-21 11:47:47,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:47:47,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-21 11:47:47,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:47:47,905 INFO L225 Difference]: With dead ends: 104 [2019-11-21 11:47:47,905 INFO L226 Difference]: Without dead ends: 104 [2019-11-21 11:47:47,905 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:47,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-11-21 11:47:47,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-11-21 11:47:47,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-21 11:47:47,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2019-11-21 11:47:47,915 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 21 [2019-11-21 11:47:47,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:47:47,916 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2019-11-21 11:47:47,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:47:47,916 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2019-11-21 11:47:47,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-21 11:47:47,919 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:47,919 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:47:48,119 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:48,120 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, alloc_3_11Err4REQUIRES_VIOLATION, alloc_3_11Err2REQUIRES_VIOLATION, alloc_3_11Err3REQUIRES_VIOLATION, alloc_3_11Err1REQUIRES_VIOLATION, alloc_3_11Err5REQUIRES_VIOLATION, alloc_3_11Err0REQUIRES_VIOLATION]=== [2019-11-21 11:47:48,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:48,121 INFO L82 PathProgramCache]: Analyzing trace with hash 184597243, now seen corresponding path program 1 times [2019-11-21 11:47:48,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:48,122 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [449674971] [2019-11-21 11:47:48,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:48,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 11:47:48,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:48,425 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:47:48,425 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:47:48,431 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:47:48,432 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:47:48,432 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:47:48,552 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:47:48,553 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-21 11:47:48,554 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:47:48,576 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 11:47:48,577 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 11:47:48,577 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 11:47:48,613 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:47:48,613 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:51,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:47:51,032 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [449674971] [2019-11-21 11:47:51,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:47:51,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-21 11:47:51,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710536260] [2019-11-21 11:47:51,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 11:47:51,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:51,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 11:47:51,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2019-11-21 11:47:51,034 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand 13 states. [2019-11-21 11:48:31,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:48:31,240 INFO L93 Difference]: Finished difference Result 229 states and 272 transitions. [2019-11-21 11:48:31,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 11:48:31,241 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 21 [2019-11-21 11:48:31,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:48:31,245 INFO L225 Difference]: With dead ends: 229 [2019-11-21 11:48:31,245 INFO L226 Difference]: Without dead ends: 229 [2019-11-21 11:48:31,246 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=76, Invalid=265, Unknown=1, NotChecked=0, Total=342 [2019-11-21 11:48:31,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-11-21 11:48:31,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 115. [2019-11-21 11:48:31,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-21 11:48:31,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 131 transitions. [2019-11-21 11:48:31,264 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 131 transitions. Word has length 21 [2019-11-21 11:48:31,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:48:31,264 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 131 transitions. [2019-11-21 11:48:31,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 11:48:31,264 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 131 transitions. [2019-11-21 11:48:31,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-21 11:48:31,265 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:48:31,266 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:48:31,466 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:48:31,467 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, alloc_3_11Err4REQUIRES_VIOLATION, alloc_3_11Err2REQUIRES_VIOLATION, alloc_3_11Err3REQUIRES_VIOLATION, alloc_3_11Err1REQUIRES_VIOLATION, alloc_3_11Err5REQUIRES_VIOLATION, alloc_3_11Err0REQUIRES_VIOLATION]=== [2019-11-21 11:48:31,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:48:31,468 INFO L82 PathProgramCache]: Analyzing trace with hash 184597244, now seen corresponding path program 1 times [2019-11-21 11:48:31,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:48:31,470 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [565715000] [2019-11-21 11:48:31,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:48:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:48:31,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-21 11:48:31,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:48:31,797 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:48:31,798 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:48:31,809 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:48:31,813 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:48:31,814 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:48:31,822 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:48:31,823 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:48:31,823 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 11:48:33,969 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 11:48:33,971 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-21 11:48:33,972 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:48:33,988 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:48:34,001 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:48:34,001 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2019-11-21 11:48:34,002 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:48:34,024 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:48:34,025 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:48:34,025 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:9 [2019-11-21 11:48:34,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:48:34,048 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:48:34,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:48:36,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:48:36,340 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:48:36,341 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:48:36,342 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:48:36,345 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:48:36,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:48:36,348 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:48:38,395 WARN L192 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-21 11:48:38,404 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:48:43,601 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 11:48:43,614 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 11:48:43,614 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:48:43,626 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:48:43,627 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 11:48:43,628 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:48:43,637 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:48:43,638 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:48:43,639 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:25, output treesize:8 [2019-11-21 11:48:43,704 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:48:43,704 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [565715000] [2019-11-21 11:48:43,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:48:43,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2019-11-21 11:48:43,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562734373] [2019-11-21 11:48:43,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-21 11:48:43,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:48:43,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-21 11:48:43,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=199, Unknown=3, NotChecked=0, Total=240 [2019-11-21 11:48:43,706 INFO L87 Difference]: Start difference. First operand 115 states and 131 transitions. Second operand 16 states. [2019-11-21 11:49:05,863 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2019-11-21 11:49:08,509 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2019-11-21 11:49:10,582 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-21 11:49:24,259 WARN L192 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-11-21 11:49:37,894 WARN L192 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-11-21 11:49:44,807 WARN L192 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2019-11-21 11:49:58,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:49:58,024 INFO L93 Difference]: Finished difference Result 249 states and 286 transitions. [2019-11-21 11:49:58,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-21 11:49:58,025 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2019-11-21 11:49:58,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:49:58,028 INFO L225 Difference]: With dead ends: 249 [2019-11-21 11:49:58,029 INFO L226 Difference]: Without dead ends: 249 [2019-11-21 11:49:58,029 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 28.3s TimeCoverageRelationStatistics Valid=123, Invalid=576, Unknown=3, NotChecked=0, Total=702 [2019-11-21 11:49:58,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2019-11-21 11:49:58,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 119. [2019-11-21 11:49:58,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-21 11:49:58,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 134 transitions. [2019-11-21 11:49:58,045 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 134 transitions. Word has length 21 [2019-11-21 11:49:58,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:49:58,046 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 134 transitions. [2019-11-21 11:49:58,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-21 11:49:58,046 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 134 transitions. [2019-11-21 11:49:58,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-21 11:49:58,047 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:49:58,048 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:49:58,251 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:49:58,252 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, alloc_3_11Err4REQUIRES_VIOLATION, alloc_3_11Err2REQUIRES_VIOLATION, alloc_3_11Err3REQUIRES_VIOLATION, alloc_3_11Err1REQUIRES_VIOLATION, alloc_3_11Err5REQUIRES_VIOLATION, alloc_3_11Err0REQUIRES_VIOLATION]=== [2019-11-21 11:49:58,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:49:58,253 INFO L82 PathProgramCache]: Analyzing trace with hash -108805764, now seen corresponding path program 1 times [2019-11-21 11:49:58,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:49:58,254 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [976191441] [2019-11-21 11:49:58,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:49:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:49:58,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 11:49:58,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:49:58,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:49:58,529 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:49:58,570 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:49:58,570 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [976191441] [2019-11-21 11:49:58,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 11:49:58,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2019-11-21 11:49:58,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252168430] [2019-11-21 11:49:58,572 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:49:58,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:49:58,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:49:58,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:49:58,573 INFO L87 Difference]: Start difference. First operand 119 states and 134 transitions. Second operand 5 states. [2019-11-21 11:49:58,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:49:58,599 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2019-11-21 11:49:58,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:49:58,600 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-21 11:49:58,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:49:58,601 INFO L225 Difference]: With dead ends: 113 [2019-11-21 11:49:58,601 INFO L226 Difference]: Without dead ends: 111 [2019-11-21 11:49:58,602 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:49:58,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-11-21 11:49:58,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2019-11-21 11:49:58,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-21 11:49:58,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2019-11-21 11:49:58,610 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 21 [2019-11-21 11:49:58,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:49:58,610 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2019-11-21 11:49:58,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:49:58,610 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2019-11-21 11:49:58,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 11:49:58,611 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:49:58,611 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:49:58,814 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:49:58,815 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, alloc_3_11Err4REQUIRES_VIOLATION, alloc_3_11Err2REQUIRES_VIOLATION, alloc_3_11Err3REQUIRES_VIOLATION, alloc_3_11Err1REQUIRES_VIOLATION, alloc_3_11Err5REQUIRES_VIOLATION, alloc_3_11Err0REQUIRES_VIOLATION]=== [2019-11-21 11:49:58,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:49:58,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1427546670, now seen corresponding path program 1 times [2019-11-21 11:49:58,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:49:58,816 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [243767722] [2019-11-21 11:49:58,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:49:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:49:59,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:49:59,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:49:59,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:49:59,075 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:49:59,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:49:59,108 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [243767722] [2019-11-21 11:49:59,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:49:59,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 11:49:59,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429276470] [2019-11-21 11:49:59,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:49:59,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:49:59,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:49:59,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:49:59,110 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand 5 states. [2019-11-21 11:49:59,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:49:59,201 INFO L93 Difference]: Finished difference Result 141 states and 158 transitions. [2019-11-21 11:49:59,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:49:59,201 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 11:49:59,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:49:59,203 INFO L225 Difference]: With dead ends: 141 [2019-11-21 11:49:59,203 INFO L226 Difference]: Without dead ends: 141 [2019-11-21 11:49:59,203 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:49:59,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-11-21 11:49:59,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 113. [2019-11-21 11:49:59,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-21 11:49:59,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 124 transitions. [2019-11-21 11:49:59,212 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 124 transitions. Word has length 22 [2019-11-21 11:49:59,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:49:59,212 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 124 transitions. [2019-11-21 11:49:59,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:49:59,213 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 124 transitions. [2019-11-21 11:49:59,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 11:49:59,214 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:49:59,214 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:49:59,417 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:49:59,417 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, alloc_3_11Err4REQUIRES_VIOLATION, alloc_3_11Err2REQUIRES_VIOLATION, alloc_3_11Err3REQUIRES_VIOLATION, alloc_3_11Err1REQUIRES_VIOLATION, alloc_3_11Err5REQUIRES_VIOLATION, alloc_3_11Err0REQUIRES_VIOLATION]=== [2019-11-21 11:49:59,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:49:59,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1979916945, now seen corresponding path program 1 times [2019-11-21 11:49:59,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:49:59,419 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1866933758] [2019-11-21 11:49:59,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:49:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:49:59,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 11:49:59,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:49:59,815 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:49:59,816 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:49:59,926 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:49:59,927 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1866933758] [2019-11-21 11:49:59,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:49:59,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-21 11:49:59,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104563449] [2019-11-21 11:49:59,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 11:49:59,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:49:59,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 11:49:59,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:49:59,929 INFO L87 Difference]: Start difference. First operand 113 states and 124 transitions. Second operand 9 states. [2019-11-21 11:50:00,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:50:00,305 INFO L93 Difference]: Finished difference Result 112 states and 122 transitions. [2019-11-21 11:50:00,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:50:00,306 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2019-11-21 11:50:00,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:50:00,307 INFO L225 Difference]: With dead ends: 112 [2019-11-21 11:50:00,307 INFO L226 Difference]: Without dead ends: 112 [2019-11-21 11:50:00,308 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:50:00,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2019-11-21 11:50:00,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2019-11-21 11:50:00,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-11-21 11:50:00,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2019-11-21 11:50:00,316 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 22 [2019-11-21 11:50:00,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:50:00,317 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2019-11-21 11:50:00,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 11:50:00,317 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2019-11-21 11:50:00,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 11:50:00,318 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:50:00,319 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:50:00,519 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:50:00,520 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, alloc_3_11Err4REQUIRES_VIOLATION, alloc_3_11Err2REQUIRES_VIOLATION, alloc_3_11Err3REQUIRES_VIOLATION, alloc_3_11Err1REQUIRES_VIOLATION, alloc_3_11Err5REQUIRES_VIOLATION, alloc_3_11Err0REQUIRES_VIOLATION]=== [2019-11-21 11:50:00,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:50:00,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1564065087, now seen corresponding path program 1 times [2019-11-21 11:50:00,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:50:00,520 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1683663667] [2019-11-21 11:50:00,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:50:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:50:00,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-21 11:50:00,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:50:00,852 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:50:00,853 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-21 11:50:00,853 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:50:00,873 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 11:50:00,874 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:50:00,875 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 11:50:00,876 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 11:50:00,876 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:50:00,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:50:00,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:50:00,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:50:07,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:50:07,098 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:50:11,458 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:50:11,459 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 11:50:11,465 INFO L168 Benchmark]: Toolchain (without parser) took 148984.00 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 271.6 MB). Free memory was 960.4 MB in the beginning and 1.2 GB in the end (delta: -252.0 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-11-21 11:50:11,466 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:50:11,467 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1044.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -136.1 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-21 11:50:11,467 INFO L168 Benchmark]: Boogie Preprocessor took 109.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 11:50:11,472 INFO L168 Benchmark]: RCFGBuilder took 1689.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 959.4 MB in the end (delta: 125.1 MB). Peak memory consumption was 125.1 MB. Max. memory is 11.5 GB. [2019-11-21 11:50:11,473 INFO L168 Benchmark]: TraceAbstraction took 146134.07 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 135.3 MB). Free memory was 959.4 MB in the beginning and 1.2 GB in the end (delta: -253.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:50:11,476 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1044.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -136.1 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 109.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1689.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 959.4 MB in the end (delta: 125.1 MB). Peak memory consumption was 125.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 146134.07 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 135.3 MB). Free memory was 959.4 MB in the beginning and 1.2 GB in the end (delta: -253.0 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...