./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 701f399f 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_test22_1-1.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 9181148b15e14afa3f85d7f56edfe966974a0845 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-701f399 [2019-11-22 09:37:02,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 09:37:02,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 09:37:02,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 09:37:02,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 09:37:02,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 09:37:02,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 09:37:02,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 09:37:02,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 09:37:02,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 09:37:02,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 09:37:02,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 09:37:02,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 09:37:02,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 09:37:02,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 09:37:02,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 09:37:02,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 09:37:02,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 09:37:02,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 09:37:02,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 09:37:02,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 09:37:02,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 09:37:02,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 09:37:02,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 09:37:02,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 09:37:02,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 09:37:02,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 09:37:02,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 09:37:02,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 09:37:02,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 09:37:02,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 09:37:02,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 09:37:02,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 09:37:02,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 09:37:02,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 09:37:02,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 09:37:02,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 09:37:02,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 09:37:02,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 09:37:02,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 09:37:02,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 09:37:02,318 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-22 09:37:02,335 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 09:37:02,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 09:37:02,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 09:37:02,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 09:37:02,337 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 09:37:02,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 09:37:02,338 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 09:37:02,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 09:37:02,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 09:37:02,339 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 09:37:02,339 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 09:37:02,339 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 09:37:02,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 09:37:02,340 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 09:37:02,340 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 09:37:02,340 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 09:37:02,341 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 09:37:02,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 09:37:02,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 09:37:02,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 09:37:02,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 09:37:02,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 09:37:02,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 09:37:02,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 09:37:02,343 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 09:37:02,343 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 09:37:02,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 09:37:02,344 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 -> 9181148b15e14afa3f85d7f56edfe966974a0845 [2019-11-22 09:37:02,648 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 09:37:02,668 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 09:37:02,671 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 09:37:02,673 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 09:37:02,673 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 09:37:02,674 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2019-11-22 09:37:02,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90266efab/5244ea3f4f714b1d96ca8986d6d20eed/FLAGc36bf2659 [2019-11-22 09:37:03,313 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 09:37:03,314 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2019-11-22 09:37:03,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90266efab/5244ea3f4f714b1d96ca8986d6d20eed/FLAGc36bf2659 [2019-11-22 09:37:03,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90266efab/5244ea3f4f714b1d96ca8986d6d20eed [2019-11-22 09:37:03,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 09:37:03,572 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 09:37:03,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 09:37:03,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 09:37:03,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 09:37:03,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:37:03" (1/1) ... [2019-11-22 09:37:03,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34aa0f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:37:03, skipping insertion in model container [2019-11-22 09:37:03,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:37:03" (1/1) ... [2019-11-22 09:37:03,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 09:37:03,640 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 09:37:04,105 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:37:04,107 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-22 09:37:04,107 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:37:04,121 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:37:04,121 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-22 09:37:04,122 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:37:04,124 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:37:04,125 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-22 09:37:04,125 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:37:04,127 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:37:04,128 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-22 09:37:04,128 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:37:04,151 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:37:04,152 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-22 09:37:04,152 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:37:04,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:37:04,194 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 09:37:04,207 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 09:37:04,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:37:04,289 INFO L201 MainTranslator]: Completed pre-run [2019-11-22 09:37:04,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:37:04,462 INFO L205 MainTranslator]: Completed translation [2019-11-22 09:37:04,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:37:04 WrapperNode [2019-11-22 09:37:04,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 09:37:04,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 09:37:04,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 09:37:04,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 09:37:04,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:37:04" (1/1) ... [2019-11-22 09:37:04,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:37:04" (1/1) ... [2019-11-22 09:37:04,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:37:04" (1/1) ... [2019-11-22 09:37:04,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:37:04" (1/1) ... [2019-11-22 09:37:04,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:37:04" (1/1) ... [2019-11-22 09:37:04,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:37:04" (1/1) ... [2019-11-22 09:37:04,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:37:04" (1/1) ... [2019-11-22 09:37:04,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 09:37:04,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 09:37:04,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 09:37:04,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 09:37:04,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:37:04" (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 [2019-11-22 09:37:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-22 09:37:04,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 09:37:04,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 09:37:04,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 09:37:04,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-22 09:37:04,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-22 09:37:04,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-22 09:37:04,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-22 09:37:04,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-22 09:37:04,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-22 09:37:04,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-22 09:37:04,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-22 09:37:04,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-22 09:37:04,642 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-22 09:37:04,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-22 09:37:04,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-22 09:37:04,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-22 09:37:04,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-22 09:37:04,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-22 09:37:04,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-22 09:37:04,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-22 09:37:04,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-22 09:37:04,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-22 09:37:04,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-22 09:37:04,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-22 09:37:04,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-22 09:37:04,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-22 09:37:04,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-22 09:37:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-22 09:37:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-22 09:37:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-22 09:37:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-22 09:37:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-22 09:37:04,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-22 09:37:04,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-22 09:37:04,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-22 09:37:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-22 09:37:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-22 09:37:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-22 09:37:04,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-22 09:37:04,653 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-22 09:37:04,653 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-22 09:37:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-22 09:37:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-22 09:37:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-22 09:37:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-22 09:37:04,655 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-22 09:37:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-22 09:37:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-22 09:37:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-22 09:37:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-22 09:37:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-22 09:37:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-22 09:37:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-22 09:37:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-22 09:37:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-22 09:37:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-22 09:37:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-22 09:37:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-22 09:37:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-22 09:37:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-22 09:37:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-22 09:37:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-22 09:37:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-22 09:37:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-22 09:37:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-22 09:37:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-22 09:37:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-22 09:37:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-22 09:37:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-22 09:37:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-22 09:37:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-22 09:37:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-22 09:37:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-22 09:37:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-22 09:37:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-22 09:37:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-22 09:37:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-22 09:37:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-22 09:37:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-22 09:37:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-22 09:37:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-22 09:37:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-22 09:37:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-22 09:37:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-22 09:37:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-22 09:37:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-22 09:37:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-22 09:37:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-22 09:37:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-22 09:37:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-22 09:37:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-22 09:37:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-22 09:37:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-22 09:37:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-22 09:37:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-22 09:37:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-22 09:37:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-22 09:37:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-22 09:37:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-22 09:37:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-22 09:37:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-22 09:37:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-22 09:37:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-22 09:37:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-22 09:37:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-22 09:37:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-22 09:37:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-22 09:37:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-22 09:37:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-22 09:37:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-22 09:37:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-22 09:37:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-22 09:37:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-22 09:37:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-22 09:37:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-22 09:37:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-22 09:37:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-22 09:37:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-22 09:37:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-22 09:37:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-22 09:37:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-22 09:37:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-22 09:37:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-22 09:37:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-22 09:37:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-22 09:37:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-22 09:37:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-22 09:37:04,691 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-22 09:37:04,691 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-22 09:37:04,691 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-22 09:37:04,691 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-22 09:37:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-22 09:37:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-22 09:37:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-22 09:37:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-22 09:37:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-22 09:37:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-22 09:37:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-22 09:37:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-22 09:37:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-22 09:37:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-22 09:37:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-22 09:37:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-22 09:37:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-22 09:37:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-22 09:37:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-22 09:37:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-22 09:37:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-22 09:37:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-22 09:37:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-22 09:37:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-22 09:37:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-22 09:37:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-22 09:37:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-22 09:37:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-22 09:37:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-22 09:37:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-22 09:37:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-22 09:37:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-22 09:37:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-22 09:37:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-22 09:37:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 09:37:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-22 09:37:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-22 09:37:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-22 09:37:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 09:37:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-22 09:37:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-22 09:37:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-22 09:37:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 09:37:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-22 09:37:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-22 09:37:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-22 09:37:04,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-22 09:37:04,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-22 09:37:04,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-22 09:37:04,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 09:37:04,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-22 09:37:04,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-22 09:37:04,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-22 09:37:04,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-22 09:37:04,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-22 09:37:04,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 09:37:04,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 09:37:04,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-22 09:37:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-22 09:37:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 09:37:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-22 09:37:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-22 09:37:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-22 09:37:04,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-22 09:37:04,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-22 09:37:04,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-22 09:37:04,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-22 09:37:04,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-22 09:37:04,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-22 09:37:04,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-22 09:37:04,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-22 09:37:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-22 09:37:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-22 09:37:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-22 09:37:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-22 09:37:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-22 09:37:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-22 09:37:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 09:37:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-22 09:37:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 09:37:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 09:37:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-22 09:37:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-22 09:37:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-22 09:37:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-22 09:37:05,412 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 09:37:05,809 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 09:37:06,138 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 09:37:06,139 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-22 09:37:06,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:37:06 BoogieIcfgContainer [2019-11-22 09:37:06,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 09:37:06,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 09:37:06,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 09:37:06,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 09:37:06,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:37:03" (1/3) ... [2019-11-22 09:37:06,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68973a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:37:06, skipping insertion in model container [2019-11-22 09:37:06,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:37:04" (2/3) ... [2019-11-22 09:37:06,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68973a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:37:06, skipping insertion in model container [2019-11-22 09:37:06,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:37:06" (3/3) ... [2019-11-22 09:37:06,149 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test22_1-1.i [2019-11-22 09:37:06,159 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 09:37:06,167 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2019-11-22 09:37:06,179 INFO L249 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2019-11-22 09:37:06,196 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 09:37:06,196 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-22 09:37:06,196 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 09:37:06,197 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 09:37:06,197 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 09:37:06,197 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 09:37:06,197 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 09:37:06,197 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 09:37:06,219 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2019-11-22 09:37:06,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 09:37:06,229 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:06,230 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:06,231 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:06,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:06,237 INFO L82 PathProgramCache]: Analyzing trace with hash -580210168, now seen corresponding path program 1 times [2019-11-22 09:37:06,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:06,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2071521585] [2019-11-22 09:37:06,249 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 [2019-11-22 09:37:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:06,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:37:06,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:06,668 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 [2019-11-22 09:37:06,668 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:06,679 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:06,679 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:06,680 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:37:06,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:06,715 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:06,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:06,794 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2071521585] [2019-11-22 09:37:06,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:06,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 09:37:06,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642239743] [2019-11-22 09:37:06,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:37:06,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:06,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:37:06,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:37:06,821 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 5 states. [2019-11-22 09:37:07,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:07,145 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2019-11-22 09:37:07,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:37:07,147 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-22 09:37:07,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:07,165 INFO L225 Difference]: With dead ends: 156 [2019-11-22 09:37:07,165 INFO L226 Difference]: Without dead ends: 153 [2019-11-22 09:37:07,167 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:37:07,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-22 09:37:07,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 147. [2019-11-22 09:37:07,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-11-22 09:37:07,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2019-11-22 09:37:07,268 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 17 [2019-11-22 09:37:07,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:07,269 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2019-11-22 09:37:07,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:37:07,269 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2019-11-22 09:37:07,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 09:37:07,271 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:07,271 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:07,475 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:07,475 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:07,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:07,476 INFO L82 PathProgramCache]: Analyzing trace with hash -580210167, now seen corresponding path program 1 times [2019-11-22 09:37:07,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:07,477 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1562876734] [2019-11-22 09:37:07,477 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 [2019-11-22 09:37:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:07,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-22 09:37:07,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:07,780 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 [2019-11-22 09:37:07,780 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:07,787 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:07,788 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:07,788 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:37:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:07,838 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:08,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:08,157 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1562876734] [2019-11-22 09:37:08,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:08,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-22 09:37:08,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527613256] [2019-11-22 09:37:08,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-22 09:37:08,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:08,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-22 09:37:08,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-22 09:37:08,162 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand 10 states. [2019-11-22 09:37:08,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:08,877 INFO L93 Difference]: Finished difference Result 152 states and 163 transitions. [2019-11-22 09:37:08,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 09:37:08,882 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-22 09:37:08,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:08,884 INFO L225 Difference]: With dead ends: 152 [2019-11-22 09:37:08,884 INFO L226 Difference]: Without dead ends: 152 [2019-11-22 09:37:08,885 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-22 09:37:08,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-22 09:37:08,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2019-11-22 09:37:08,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-11-22 09:37:08,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 157 transitions. [2019-11-22 09:37:08,896 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 157 transitions. Word has length 17 [2019-11-22 09:37:08,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:08,896 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 157 transitions. [2019-11-22 09:37:08,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-22 09:37:08,897 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2019-11-22 09:37:08,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 09:37:08,897 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:08,897 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:09,100 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:09,102 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:09,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:09,102 INFO L82 PathProgramCache]: Analyzing trace with hash -551581017, now seen corresponding path program 1 times [2019-11-22 09:37:09,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:09,103 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1170595744] [2019-11-22 09:37:09,103 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 [2019-11-22 09:37:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:09,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-22 09:37:09,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:09,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:09,373 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:09,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:09,411 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1170595744] [2019-11-22 09:37:09,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:09,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 09:37:09,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033563837] [2019-11-22 09:37:09,412 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:37:09,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:09,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:37:09,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:37:09,412 INFO L87 Difference]: Start difference. First operand 147 states and 157 transitions. Second operand 5 states. [2019-11-22 09:37:09,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:09,442 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2019-11-22 09:37:09,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:37:09,443 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-22 09:37:09,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:09,445 INFO L225 Difference]: With dead ends: 146 [2019-11-22 09:37:09,445 INFO L226 Difference]: Without dead ends: 146 [2019-11-22 09:37:09,445 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:37:09,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-11-22 09:37:09,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2019-11-22 09:37:09,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-22 09:37:09,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2019-11-22 09:37:09,456 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 17 [2019-11-22 09:37:09,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:09,457 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 152 transitions. [2019-11-22 09:37:09,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:37:09,457 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 152 transitions. [2019-11-22 09:37:09,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-22 09:37:09,458 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:09,458 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:09,670 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:09,671 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:09,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:09,672 INFO L82 PathProgramCache]: Analyzing trace with hash 180429038, now seen corresponding path program 1 times [2019-11-22 09:37:09,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:09,674 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [806085252] [2019-11-22 09:37:09,674 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 [2019-11-22 09:37:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:09,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:37:09,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:09,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:09,937 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:10,010 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [806085252] [2019-11-22 09:37:10,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:10,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 09:37:10,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136013192] [2019-11-22 09:37:10,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:37:10,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:10,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:37:10,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:37:10,012 INFO L87 Difference]: Start difference. First operand 144 states and 152 transitions. Second operand 5 states. [2019-11-22 09:37:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:10,037 INFO L93 Difference]: Finished difference Result 146 states and 153 transitions. [2019-11-22 09:37:10,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:37:10,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-22 09:37:10,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:10,040 INFO L225 Difference]: With dead ends: 146 [2019-11-22 09:37:10,040 INFO L226 Difference]: Without dead ends: 146 [2019-11-22 09:37:10,041 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:37:10,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-11-22 09:37:10,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2019-11-22 09:37:10,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-22 09:37:10,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 151 transitions. [2019-11-22 09:37:10,050 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 151 transitions. Word has length 27 [2019-11-22 09:37:10,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:10,050 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 151 transitions. [2019-11-22 09:37:10,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:37:10,050 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 151 transitions. [2019-11-22 09:37:10,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-22 09:37:10,057 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:10,057 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:10,259 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:10,260 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:10,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:10,260 INFO L82 PathProgramCache]: Analyzing trace with hash -330105139, now seen corresponding path program 1 times [2019-11-22 09:37:10,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:10,262 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [269387461] [2019-11-22 09:37:10,262 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 [2019-11-22 09:37:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:10,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-22 09:37:10,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:10,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:10,599 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:10,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:10,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [269387461] [2019-11-22 09:37:10,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:10,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-11-22 09:37:10,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090738627] [2019-11-22 09:37:10,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-22 09:37:10,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:10,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-22 09:37:10,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-22 09:37:10,648 INFO L87 Difference]: Start difference. First operand 144 states and 151 transitions. Second operand 7 states. [2019-11-22 09:37:10,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:10,717 INFO L93 Difference]: Finished difference Result 160 states and 168 transitions. [2019-11-22 09:37:10,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-22 09:37:10,719 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-11-22 09:37:10,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:10,721 INFO L225 Difference]: With dead ends: 160 [2019-11-22 09:37:10,721 INFO L226 Difference]: Without dead ends: 160 [2019-11-22 09:37:10,721 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-22 09:37:10,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-11-22 09:37:10,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 153. [2019-11-22 09:37:10,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-22 09:37:10,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 160 transitions. [2019-11-22 09:37:10,732 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 160 transitions. Word has length 27 [2019-11-22 09:37:10,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:10,732 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 160 transitions. [2019-11-22 09:37:10,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-22 09:37:10,732 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 160 transitions. [2019-11-22 09:37:10,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-22 09:37:10,737 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:10,738 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:10,948 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:10,949 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:10,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:10,949 INFO L82 PathProgramCache]: Analyzing trace with hash 317366699, now seen corresponding path program 1 times [2019-11-22 09:37:10,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:10,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1688081314] [2019-11-22 09:37:10,950 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 [2019-11-22 09:37:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:11,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-22 09:37:11,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:11,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:11,261 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:11,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:11,308 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1688081314] [2019-11-22 09:37:11,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:11,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-22 09:37:11,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494646643] [2019-11-22 09:37:11,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 09:37:11,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:11,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 09:37:11,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-22 09:37:11,310 INFO L87 Difference]: Start difference. First operand 153 states and 160 transitions. Second operand 6 states. [2019-11-22 09:37:11,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:11,370 INFO L93 Difference]: Finished difference Result 159 states and 166 transitions. [2019-11-22 09:37:11,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 09:37:11,370 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-22 09:37:11,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:11,372 INFO L225 Difference]: With dead ends: 159 [2019-11-22 09:37:11,372 INFO L226 Difference]: Without dead ends: 155 [2019-11-22 09:37:11,373 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-22 09:37:11,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-11-22 09:37:11,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2019-11-22 09:37:11,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-11-22 09:37:11,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 162 transitions. [2019-11-22 09:37:11,382 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 162 transitions. Word has length 32 [2019-11-22 09:37:11,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:11,382 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 162 transitions. [2019-11-22 09:37:11,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 09:37:11,382 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 162 transitions. [2019-11-22 09:37:11,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-22 09:37:11,384 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:11,384 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:11,595 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:11,596 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:11,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:11,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1135828661, now seen corresponding path program 1 times [2019-11-22 09:37:11,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:11,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1576863126] [2019-11-22 09:37:11,598 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 [2019-11-22 09:37:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:11,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:37:11,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:11,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:11,932 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:12,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:12,051 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1576863126] [2019-11-22 09:37:12,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:37:12,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-22 09:37:12,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255420482] [2019-11-22 09:37:12,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-22 09:37:12,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:12,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-22 09:37:12,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-22 09:37:12,052 INFO L87 Difference]: Start difference. First operand 155 states and 162 transitions. Second operand 10 states. [2019-11-22 09:37:12,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:12,247 INFO L93 Difference]: Finished difference Result 163 states and 172 transitions. [2019-11-22 09:37:12,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-22 09:37:12,248 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-11-22 09:37:12,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:12,249 INFO L225 Difference]: With dead ends: 163 [2019-11-22 09:37:12,249 INFO L226 Difference]: Without dead ends: 159 [2019-11-22 09:37:12,250 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2019-11-22 09:37:12,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-11-22 09:37:12,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2019-11-22 09:37:12,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-11-22 09:37:12,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 166 transitions. [2019-11-22 09:37:12,257 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 166 transitions. Word has length 34 [2019-11-22 09:37:12,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:12,258 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 166 transitions. [2019-11-22 09:37:12,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-22 09:37:12,258 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 166 transitions. [2019-11-22 09:37:12,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-22 09:37:12,259 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:12,260 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:12,462 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:12,463 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:12,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:12,464 INFO L82 PathProgramCache]: Analyzing trace with hash 591246760, now seen corresponding path program 1 times [2019-11-22 09:37:12,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:12,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2111344620] [2019-11-22 09:37:12,466 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 [2019-11-22 09:37:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:12,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-22 09:37:12,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:12,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:12,866 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:12,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:12,927 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2111344620] [2019-11-22 09:37:12,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:12,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-11-22 09:37:12,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404217030] [2019-11-22 09:37:12,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-22 09:37:12,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:12,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-22 09:37:12,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-22 09:37:12,929 INFO L87 Difference]: Start difference. First operand 159 states and 166 transitions. Second operand 7 states. [2019-11-22 09:37:12,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:12,990 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2019-11-22 09:37:12,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-22 09:37:12,990 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2019-11-22 09:37:12,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:12,992 INFO L225 Difference]: With dead ends: 169 [2019-11-22 09:37:12,992 INFO L226 Difference]: Without dead ends: 169 [2019-11-22 09:37:12,993 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-22 09:37:13,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2019-11-22 09:37:13,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165. [2019-11-22 09:37:13,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2019-11-22 09:37:13,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 172 transitions. [2019-11-22 09:37:13,026 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 172 transitions. Word has length 36 [2019-11-22 09:37:13,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:13,026 INFO L462 AbstractCegarLoop]: Abstraction has 165 states and 172 transitions. [2019-11-22 09:37:13,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-22 09:37:13,026 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 172 transitions. [2019-11-22 09:37:13,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-22 09:37:13,027 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:13,028 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:13,237 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:13,238 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:13,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:13,239 INFO L82 PathProgramCache]: Analyzing trace with hash -212953728, now seen corresponding path program 1 times [2019-11-22 09:37:13,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:13,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1313596022] [2019-11-22 09:37:13,240 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 [2019-11-22 09:37:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:13,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-22 09:37:13,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:13,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:13,499 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:13,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:13,648 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1313596022] [2019-11-22 09:37:13,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:13,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 09:37:13,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226534493] [2019-11-22 09:37:13,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-22 09:37:13,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:13,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-22 09:37:13,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 09:37:13,654 INFO L87 Difference]: Start difference. First operand 165 states and 172 transitions. Second operand 3 states. [2019-11-22 09:37:13,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:13,871 INFO L93 Difference]: Finished difference Result 176 states and 182 transitions. [2019-11-22 09:37:13,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-22 09:37:13,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-11-22 09:37:13,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:13,873 INFO L225 Difference]: With dead ends: 176 [2019-11-22 09:37:13,873 INFO L226 Difference]: Without dead ends: 154 [2019-11-22 09:37:13,874 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 09:37:13,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-11-22 09:37:13,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 146. [2019-11-22 09:37:13,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-11-22 09:37:13,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 152 transitions. [2019-11-22 09:37:13,883 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 152 transitions. Word has length 34 [2019-11-22 09:37:13,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:13,883 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 152 transitions. [2019-11-22 09:37:13,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-22 09:37:13,883 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 152 transitions. [2019-11-22 09:37:13,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-22 09:37:13,887 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:13,887 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:14,090 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:14,091 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:14,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:14,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1203345269, now seen corresponding path program 2 times [2019-11-22 09:37:14,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:14,093 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2000527551] [2019-11-22 09:37:14,093 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:14,372 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-22 09:37:14,372 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 09:37:14,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-22 09:37:14,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:14,382 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 [2019-11-22 09:37:14,382 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:14,384 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:14,384 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:14,385 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:37:14,543 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-22 09:37:14,543 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:14,647 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-22 09:37:14,647 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2000527551] [2019-11-22 09:37:14,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:14,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 12 [2019-11-22 09:37:14,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806340193] [2019-11-22 09:37:14,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-22 09:37:14,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:14,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-22 09:37:14,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-22 09:37:14,649 INFO L87 Difference]: Start difference. First operand 146 states and 152 transitions. Second operand 13 states. [2019-11-22 09:37:15,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:15,763 INFO L93 Difference]: Finished difference Result 157 states and 162 transitions. [2019-11-22 09:37:15,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-22 09:37:15,764 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2019-11-22 09:37:15,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:15,765 INFO L225 Difference]: With dead ends: 157 [2019-11-22 09:37:15,766 INFO L226 Difference]: Without dead ends: 157 [2019-11-22 09:37:15,766 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-11-22 09:37:15,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-22 09:37:15,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 145. [2019-11-22 09:37:15,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-11-22 09:37:15,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 151 transitions. [2019-11-22 09:37:15,771 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 151 transitions. Word has length 38 [2019-11-22 09:37:15,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:15,772 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 151 transitions. [2019-11-22 09:37:15,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-22 09:37:15,772 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 151 transitions. [2019-11-22 09:37:15,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-22 09:37:15,772 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:15,772 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:15,978 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:15,980 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:15,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:15,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1203345268, now seen corresponding path program 1 times [2019-11-22 09:37:15,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:15,982 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2043524847] [2019-11-22 09:37:15,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:16,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-22 09:37:16,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:16,394 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:16,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2043524847] [2019-11-22 09:37:16,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:37:16,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-11-22 09:37:16,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121172678] [2019-11-22 09:37:16,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-22 09:37:16,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:16,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-22 09:37:16,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-11-22 09:37:16,716 INFO L87 Difference]: Start difference. First operand 145 states and 151 transitions. Second operand 18 states. [2019-11-22 09:37:17,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:17,626 INFO L93 Difference]: Finished difference Result 157 states and 169 transitions. [2019-11-22 09:37:17,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-22 09:37:17,627 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2019-11-22 09:37:17,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:17,630 INFO L225 Difference]: With dead ends: 157 [2019-11-22 09:37:17,630 INFO L226 Difference]: Without dead ends: 153 [2019-11-22 09:37:17,631 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2019-11-22 09:37:17,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-22 09:37:17,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-11-22 09:37:17,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-22 09:37:17,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 159 transitions. [2019-11-22 09:37:17,640 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 159 transitions. Word has length 38 [2019-11-22 09:37:17,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:17,640 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 159 transitions. [2019-11-22 09:37:17,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-22 09:37:17,640 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 159 transitions. [2019-11-22 09:37:17,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-22 09:37:17,641 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:17,642 INFO L410 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:17,845 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:17,845 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:17,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:17,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1038685964, now seen corresponding path program 2 times [2019-11-22 09:37:17,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:17,848 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [985740125] [2019-11-22 09:37:17,848 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:18,168 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-22 09:37:18,168 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 09:37:18,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-22 09:37:18,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:18,205 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 [2019-11-22 09:37:18,206 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:18,214 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:18,214 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:18,215 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:37:18,509 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-22 09:37:18,509 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-22 09:37:19,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [985740125] [2019-11-22 09:37:19,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:19,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-22 09:37:19,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462674343] [2019-11-22 09:37:19,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-22 09:37:19,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:19,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-22 09:37:19,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-22 09:37:19,338 INFO L87 Difference]: Start difference. First operand 153 states and 159 transitions. Second operand 23 states. [2019-11-22 09:37:22,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:22,140 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2019-11-22 09:37:22,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-22 09:37:22,141 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 46 [2019-11-22 09:37:22,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:22,142 INFO L225 Difference]: With dead ends: 152 [2019-11-22 09:37:22,142 INFO L226 Difference]: Without dead ends: 152 [2019-11-22 09:37:22,143 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-22 09:37:22,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-22 09:37:22,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2019-11-22 09:37:22,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-22 09:37:22,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 158 transitions. [2019-11-22 09:37:22,148 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 158 transitions. Word has length 46 [2019-11-22 09:37:22,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:22,149 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 158 transitions. [2019-11-22 09:37:22,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-22 09:37:22,149 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2019-11-22 09:37:22,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-22 09:37:22,150 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:22,150 INFO L410 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:22,353 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:22,354 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:22,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:22,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1614588820, now seen corresponding path program 1 times [2019-11-22 09:37:22,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:22,356 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [695133757] [2019-11-22 09:37:22,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:22,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-22 09:37:22,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:22,923 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:22,923 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:23,035 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-22 09:37:24,011 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:24,012 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [695133757] [2019-11-22 09:37:24,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:37:24,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2019-11-22 09:37:24,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059841066] [2019-11-22 09:37:24,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-22 09:37:24,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:24,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-22 09:37:24,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=802, Unknown=0, NotChecked=0, Total=1122 [2019-11-22 09:37:24,014 INFO L87 Difference]: Start difference. First operand 152 states and 158 transitions. Second operand 34 states. [2019-11-22 09:37:27,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:27,891 INFO L93 Difference]: Finished difference Result 170 states and 188 transitions. [2019-11-22 09:37:27,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-22 09:37:27,892 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 51 [2019-11-22 09:37:27,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:27,894 INFO L225 Difference]: With dead ends: 170 [2019-11-22 09:37:27,894 INFO L226 Difference]: Without dead ends: 166 [2019-11-22 09:37:27,895 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=736, Invalid=1426, Unknown=0, NotChecked=0, Total=2162 [2019-11-22 09:37:27,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-11-22 09:37:27,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2019-11-22 09:37:27,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2019-11-22 09:37:27,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 172 transitions. [2019-11-22 09:37:27,901 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 172 transitions. Word has length 51 [2019-11-22 09:37:27,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:27,902 INFO L462 AbstractCegarLoop]: Abstraction has 166 states and 172 transitions. [2019-11-22 09:37:27,902 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-22 09:37:27,902 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 172 transitions. [2019-11-22 09:37:27,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-22 09:37:27,903 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:27,904 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:28,107 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:28,108 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:28,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:28,109 INFO L82 PathProgramCache]: Analyzing trace with hash 2083027508, now seen corresponding path program 2 times [2019-11-22 09:37:28,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:28,110 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [827898120] [2019-11-22 09:37:28,111 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:28,429 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-22 09:37:28,429 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 09:37:28,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-22 09:37:28,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:28,439 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 [2019-11-22 09:37:28,440 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:28,442 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:28,442 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:28,442 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:37:28,615 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:28,615 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:28,715 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:28,716 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [827898120] [2019-11-22 09:37:28,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:28,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 12 [2019-11-22 09:37:28,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340184251] [2019-11-22 09:37:28,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-22 09:37:28,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:28,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-22 09:37:28,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-22 09:37:28,717 INFO L87 Difference]: Start difference. First operand 166 states and 172 transitions. Second operand 13 states. [2019-11-22 09:37:29,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:29,664 INFO L93 Difference]: Finished difference Result 176 states and 181 transitions. [2019-11-22 09:37:29,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-22 09:37:29,664 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 65 [2019-11-22 09:37:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:29,667 INFO L225 Difference]: With dead ends: 176 [2019-11-22 09:37:29,667 INFO L226 Difference]: Without dead ends: 176 [2019-11-22 09:37:29,667 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 114 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-11-22 09:37:29,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2019-11-22 09:37:29,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 164. [2019-11-22 09:37:29,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-11-22 09:37:29,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 170 transitions. [2019-11-22 09:37:29,673 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 170 transitions. Word has length 65 [2019-11-22 09:37:29,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:29,674 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 170 transitions. [2019-11-22 09:37:29,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-22 09:37:29,674 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 170 transitions. [2019-11-22 09:37:29,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-22 09:37:29,675 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:29,675 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:29,878 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:29,878 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:29,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:29,879 INFO L82 PathProgramCache]: Analyzing trace with hash 2083027509, now seen corresponding path program 1 times [2019-11-22 09:37:29,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:29,881 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [565621467] [2019-11-22 09:37:29,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:30,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-22 09:37:30,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:30,487 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 [2019-11-22 09:37:30,487 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:30,492 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:30,493 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:30,493 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:37:30,746 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:30,747 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:31,550 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:31,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [565621467] [2019-11-22 09:37:31,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:31,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-22 09:37:31,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435284302] [2019-11-22 09:37:31,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-22 09:37:31,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:31,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-22 09:37:31,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-22 09:37:31,553 INFO L87 Difference]: Start difference. First operand 164 states and 170 transitions. Second operand 23 states. [2019-11-22 09:37:34,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:34,233 INFO L93 Difference]: Finished difference Result 162 states and 168 transitions. [2019-11-22 09:37:34,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-22 09:37:34,234 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 65 [2019-11-22 09:37:34,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:34,235 INFO L225 Difference]: With dead ends: 162 [2019-11-22 09:37:34,235 INFO L226 Difference]: Without dead ends: 162 [2019-11-22 09:37:34,236 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 104 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-22 09:37:34,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-22 09:37:34,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2019-11-22 09:37:34,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-22 09:37:34,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 168 transitions. [2019-11-22 09:37:34,244 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 168 transitions. Word has length 65 [2019-11-22 09:37:34,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:34,245 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 168 transitions. [2019-11-22 09:37:34,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-22 09:37:34,245 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 168 transitions. [2019-11-22 09:37:34,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-22 09:37:34,246 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:34,246 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:34,457 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:34,458 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:34,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:34,459 INFO L82 PathProgramCache]: Analyzing trace with hash -552054101, now seen corresponding path program 1 times [2019-11-22 09:37:34,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:34,461 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1060950694] [2019-11-22 09:37:34,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:34,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-22 09:37:34,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:34,844 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:34,844 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:34,994 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:34,994 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1060950694] [2019-11-22 09:37:34,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:34,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2019-11-22 09:37:34,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913739187] [2019-11-22 09:37:34,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-22 09:37:34,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:34,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-22 09:37:34,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-22 09:37:34,996 INFO L87 Difference]: Start difference. First operand 162 states and 168 transitions. Second operand 8 states. [2019-11-22 09:37:35,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:35,041 INFO L93 Difference]: Finished difference Result 164 states and 169 transitions. [2019-11-22 09:37:35,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-22 09:37:35,041 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2019-11-22 09:37:35,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:35,042 INFO L225 Difference]: With dead ends: 164 [2019-11-22 09:37:35,042 INFO L226 Difference]: Without dead ends: 162 [2019-11-22 09:37:35,043 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-22 09:37:35,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-22 09:37:35,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2019-11-22 09:37:35,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-22 09:37:35,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 167 transitions. [2019-11-22 09:37:35,047 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 167 transitions. Word has length 68 [2019-11-22 09:37:35,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:35,047 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 167 transitions. [2019-11-22 09:37:35,048 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-22 09:37:35,048 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 167 transitions. [2019-11-22 09:37:35,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-11-22 09:37:35,048 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:35,049 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:35,249 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:35,250 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:35,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:35,250 INFO L82 PathProgramCache]: Analyzing trace with hash -188472710, now seen corresponding path program 1 times [2019-11-22 09:37:35,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:35,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1502478898] [2019-11-22 09:37:35,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:35,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-22 09:37:35,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:35,680 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:35,681 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:35,843 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:37:35,890 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:35,890 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1502478898] [2019-11-22 09:37:35,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:35,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2019-11-22 09:37:35,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065987262] [2019-11-22 09:37:35,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-22 09:37:35,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:35,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-22 09:37:35,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-22 09:37:35,892 INFO L87 Difference]: Start difference. First operand 162 states and 167 transitions. Second operand 11 states. [2019-11-22 09:37:36,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:36,006 INFO L93 Difference]: Finished difference Result 166 states and 170 transitions. [2019-11-22 09:37:36,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-22 09:37:36,007 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2019-11-22 09:37:36,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:36,008 INFO L225 Difference]: With dead ends: 166 [2019-11-22 09:37:36,008 INFO L226 Difference]: Without dead ends: 162 [2019-11-22 09:37:36,008 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-22 09:37:36,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-22 09:37:36,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2019-11-22 09:37:36,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-22 09:37:36,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 166 transitions. [2019-11-22 09:37:36,013 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 166 transitions. Word has length 73 [2019-11-22 09:37:36,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:36,014 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 166 transitions. [2019-11-22 09:37:36,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-22 09:37:36,014 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 166 transitions. [2019-11-22 09:37:36,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-11-22 09:37:36,015 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:36,015 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:36,218 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:36,218 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:36,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:36,219 INFO L82 PathProgramCache]: Analyzing trace with hash -85285775, now seen corresponding path program 1 times [2019-11-22 09:37:36,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:36,220 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1877194098] [2019-11-22 09:37:36,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:36,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-22 09:37:36,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:36,753 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 [2019-11-22 09:37:36,753 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:36,755 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:36,755 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:36,755 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:37:37,062 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:37,062 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:37,435 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1877194098] [2019-11-22 09:37:37,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:37,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 12] imperfect sequences [] total 17 [2019-11-22 09:37:37,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685953132] [2019-11-22 09:37:37,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-22 09:37:37,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:37,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-22 09:37:37,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2019-11-22 09:37:37,438 INFO L87 Difference]: Start difference. First operand 162 states and 166 transitions. Second operand 18 states. [2019-11-22 09:37:39,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:39,217 INFO L93 Difference]: Finished difference Result 172 states and 175 transitions. [2019-11-22 09:37:39,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-22 09:37:39,217 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 84 [2019-11-22 09:37:39,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:39,219 INFO L225 Difference]: With dead ends: 172 [2019-11-22 09:37:39,219 INFO L226 Difference]: Without dead ends: 172 [2019-11-22 09:37:39,219 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 147 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2019-11-22 09:37:39,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-11-22 09:37:39,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 160. [2019-11-22 09:37:39,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-11-22 09:37:39,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 164 transitions. [2019-11-22 09:37:39,226 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 164 transitions. Word has length 84 [2019-11-22 09:37:39,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:39,229 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 164 transitions. [2019-11-22 09:37:39,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-22 09:37:39,229 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 164 transitions. [2019-11-22 09:37:39,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-11-22 09:37:39,231 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:39,231 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:39,435 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:39,436 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:39,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:39,436 INFO L82 PathProgramCache]: Analyzing trace with hash -85285774, now seen corresponding path program 1 times [2019-11-22 09:37:39,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:39,437 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [413736613] [2019-11-22 09:37:39,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:40,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 36 conjunts are in the unsatisfiable core [2019-11-22 09:37:40,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:40,135 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 [2019-11-22 09:37:40,135 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:40,142 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:40,142 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:40,142 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:37:40,569 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:40,569 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:42,554 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:42,555 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [413736613] [2019-11-22 09:37:42,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:42,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 14] imperfect sequences [] total 30 [2019-11-22 09:37:42,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9603493] [2019-11-22 09:37:42,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-11-22 09:37:42,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:42,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-11-22 09:37:42,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2019-11-22 09:37:42,557 INFO L87 Difference]: Start difference. First operand 160 states and 164 transitions. Second operand 31 states. [2019-11-22 09:37:46,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:46,041 INFO L93 Difference]: Finished difference Result 158 states and 162 transitions. [2019-11-22 09:37:46,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-22 09:37:46,042 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 84 [2019-11-22 09:37:46,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:46,044 INFO L225 Difference]: With dead ends: 158 [2019-11-22 09:37:46,044 INFO L226 Difference]: Without dead ends: 158 [2019-11-22 09:37:46,044 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 134 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=119, Invalid=1141, Unknown=0, NotChecked=0, Total=1260 [2019-11-22 09:37:46,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-22 09:37:46,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-11-22 09:37:46,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-11-22 09:37:46,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 162 transitions. [2019-11-22 09:37:46,049 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 162 transitions. Word has length 84 [2019-11-22 09:37:46,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:46,050 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 162 transitions. [2019-11-22 09:37:46,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-11-22 09:37:46,050 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 162 transitions. [2019-11-22 09:37:46,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-11-22 09:37:46,051 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:46,052 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:46,256 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:46,257 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:46,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:46,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1669081220, now seen corresponding path program 1 times [2019-11-22 09:37:46,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:46,260 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1409499776] [2019-11-22 09:37:46,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:46,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-22 09:37:46,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:46,692 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:46,692 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:46,850 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:46,850 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1409499776] [2019-11-22 09:37:46,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:46,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2019-11-22 09:37:46,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559692276] [2019-11-22 09:37:46,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-22 09:37:46,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:46,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-22 09:37:46,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-22 09:37:46,852 INFO L87 Difference]: Start difference. First operand 158 states and 162 transitions. Second operand 11 states. [2019-11-22 09:37:46,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:46,953 INFO L93 Difference]: Finished difference Result 161 states and 164 transitions. [2019-11-22 09:37:46,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-22 09:37:46,956 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2019-11-22 09:37:46,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:46,957 INFO L225 Difference]: With dead ends: 161 [2019-11-22 09:37:46,957 INFO L226 Difference]: Without dead ends: 158 [2019-11-22 09:37:46,957 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2019-11-22 09:37:46,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-22 09:37:46,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-11-22 09:37:46,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-11-22 09:37:46,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 161 transitions. [2019-11-22 09:37:46,961 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 161 transitions. Word has length 93 [2019-11-22 09:37:46,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:46,962 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 161 transitions. [2019-11-22 09:37:46,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-22 09:37:46,962 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 161 transitions. [2019-11-22 09:37:46,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-11-22 09:37:46,963 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:46,964 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:47,167 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:47,168 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:47,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:47,169 INFO L82 PathProgramCache]: Analyzing trace with hash -754183911, now seen corresponding path program 1 times [2019-11-22 09:37:47,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:47,170 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [346519910] [2019-11-22 09:37:47,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:47,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 30 conjunts are in the unsatisfiable core [2019-11-22 09:37:47,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:47,798 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 [2019-11-22 09:37:47,799 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:47,800 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:47,800 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:47,801 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:37:48,169 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:48,170 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:48,587 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:48,588 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [346519910] [2019-11-22 09:37:48,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:48,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 14] imperfect sequences [] total 19 [2019-11-22 09:37:48,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828143501] [2019-11-22 09:37:48,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-22 09:37:48,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:48,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-22 09:37:48,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2019-11-22 09:37:48,590 INFO L87 Difference]: Start difference. First operand 158 states and 161 transitions. Second operand 20 states. [2019-11-22 09:37:50,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:50,344 INFO L93 Difference]: Finished difference Result 172 states and 174 transitions. [2019-11-22 09:37:50,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-22 09:37:50,345 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 106 [2019-11-22 09:37:50,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:50,347 INFO L225 Difference]: With dead ends: 172 [2019-11-22 09:37:50,347 INFO L226 Difference]: Without dead ends: 172 [2019-11-22 09:37:50,348 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 187 SyntacticMatches, 6 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2019-11-22 09:37:50,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-11-22 09:37:50,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 156. [2019-11-22 09:37:50,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-22 09:37:50,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 159 transitions. [2019-11-22 09:37:50,353 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 159 transitions. Word has length 106 [2019-11-22 09:37:50,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:50,354 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 159 transitions. [2019-11-22 09:37:50,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-22 09:37:50,354 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 159 transitions. [2019-11-22 09:37:50,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-11-22 09:37:50,355 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:50,356 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:50,561 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:50,561 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:50,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:50,562 INFO L82 PathProgramCache]: Analyzing trace with hash -754183910, now seen corresponding path program 1 times [2019-11-22 09:37:50,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:50,563 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1534136340] [2019-11-22 09:37:50,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:51,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 40 conjunts are in the unsatisfiable core [2019-11-22 09:37:51,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:51,363 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 [2019-11-22 09:37:51,363 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:51,373 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:51,373 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:51,373 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:37:51,903 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:51,903 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:53,832 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:53,832 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1534136340] [2019-11-22 09:37:53,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:53,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 16] imperfect sequences [] total 34 [2019-11-22 09:37:53,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686438774] [2019-11-22 09:37:53,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-11-22 09:37:53,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:53,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-11-22 09:37:53,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1093, Unknown=0, NotChecked=0, Total=1190 [2019-11-22 09:37:53,834 INFO L87 Difference]: Start difference. First operand 156 states and 159 transitions. Second operand 35 states. [2019-11-22 09:37:57,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:57,991 INFO L93 Difference]: Finished difference Result 154 states and 157 transitions. [2019-11-22 09:37:57,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-22 09:37:57,993 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 106 [2019-11-22 09:37:57,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:57,994 INFO L225 Difference]: With dead ends: 154 [2019-11-22 09:37:57,994 INFO L226 Difference]: Without dead ends: 154 [2019-11-22 09:37:57,995 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 172 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=138, Invalid=1502, Unknown=0, NotChecked=0, Total=1640 [2019-11-22 09:37:57,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-11-22 09:37:57,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-11-22 09:37:57,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-22 09:37:57,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 157 transitions. [2019-11-22 09:37:57,999 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 157 transitions. Word has length 106 [2019-11-22 09:37:58,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:58,000 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 157 transitions. [2019-11-22 09:37:58,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-11-22 09:37:58,000 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 157 transitions. [2019-11-22 09:37:58,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-11-22 09:37:58,001 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:58,001 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:58,201 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:58,202 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:58,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:58,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1724966607, now seen corresponding path program 1 times [2019-11-22 09:37:58,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:58,204 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [316266456] [2019-11-22 09:37:58,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 24 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:58,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-22 09:37:58,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:58,679 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:58,680 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:59,153 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:37:59,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [316266456] [2019-11-22 09:37:59,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:59,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2019-11-22 09:37:59,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510447971] [2019-11-22 09:37:59,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-22 09:37:59,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:59,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-22 09:37:59,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-22 09:37:59,157 INFO L87 Difference]: Start difference. First operand 154 states and 157 transitions. Second operand 11 states. [2019-11-22 09:37:59,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:59,285 INFO L93 Difference]: Finished difference Result 156 states and 158 transitions. [2019-11-22 09:37:59,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-22 09:37:59,286 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 104 [2019-11-22 09:37:59,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:59,287 INFO L225 Difference]: With dead ends: 156 [2019-11-22 09:37:59,288 INFO L226 Difference]: Without dead ends: 154 [2019-11-22 09:37:59,288 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2019-11-22 09:37:59,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-11-22 09:37:59,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-11-22 09:37:59,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-22 09:37:59,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 156 transitions. [2019-11-22 09:37:59,299 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 156 transitions. Word has length 104 [2019-11-22 09:37:59,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:59,300 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 156 transitions. [2019-11-22 09:37:59,300 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-22 09:37:59,300 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 156 transitions. [2019-11-22 09:37:59,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-11-22 09:37:59,302 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:59,302 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:59,507 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:59,507 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:59,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:59,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1351384757, now seen corresponding path program 1 times [2019-11-22 09:37:59,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:59,509 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [379487172] [2019-11-22 09:37:59,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:38:00,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 42 conjunts are in the unsatisfiable core [2019-11-22 09:38:00,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:38:00,183 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 [2019-11-22 09:38:00,184 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:00,186 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:00,186 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:00,186 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:38:00,869 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:38:00,869 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:38:01,363 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:38:01,364 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [379487172] [2019-11-22 09:38:01,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:38:01,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23, 18] imperfect sequences [] total 23 [2019-11-22 09:38:01,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705527516] [2019-11-22 09:38:01,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-22 09:38:01,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:38:01,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-22 09:38:01,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2019-11-22 09:38:01,368 INFO L87 Difference]: Start difference. First operand 154 states and 156 transitions. Second operand 24 states. [2019-11-22 09:38:03,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:38:03,366 INFO L93 Difference]: Finished difference Result 164 states and 165 transitions. [2019-11-22 09:38:03,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-22 09:38:03,367 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 119 [2019-11-22 09:38:03,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:38:03,369 INFO L225 Difference]: With dead ends: 164 [2019-11-22 09:38:03,369 INFO L226 Difference]: Without dead ends: 164 [2019-11-22 09:38:03,369 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 205 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2019-11-22 09:38:03,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-11-22 09:38:03,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 152. [2019-11-22 09:38:03,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-22 09:38:03,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 154 transitions. [2019-11-22 09:38:03,374 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 154 transitions. Word has length 119 [2019-11-22 09:38:03,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:38:03,375 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 154 transitions. [2019-11-22 09:38:03,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-22 09:38:03,375 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 154 transitions. [2019-11-22 09:38:03,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-11-22 09:38:03,376 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:38:03,376 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:38:03,578 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:03,579 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:38:03,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:38:03,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1351384756, now seen corresponding path program 1 times [2019-11-22 09:38:03,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:38:03,580 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1290634982] [2019-11-22 09:38:03,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 26 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:38:04,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 52 conjunts are in the unsatisfiable core [2019-11-22 09:38:04,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:38:04,475 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 [2019-11-22 09:38:04,476 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:04,481 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:04,482 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:04,482 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:38:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:38:05,235 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:38:07,898 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:38:07,899 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1290634982] [2019-11-22 09:38:07,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:38:07,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23, 20] imperfect sequences [] total 42 [2019-11-22 09:38:07,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738921374] [2019-11-22 09:38:07,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-11-22 09:38:07,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:38:07,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-11-22 09:38:07,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1685, Unknown=0, NotChecked=0, Total=1806 [2019-11-22 09:38:07,901 INFO L87 Difference]: Start difference. First operand 152 states and 154 transitions. Second operand 43 states. [2019-11-22 09:38:13,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:38:13,955 INFO L93 Difference]: Finished difference Result 150 states and 152 transitions. [2019-11-22 09:38:13,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-22 09:38:13,956 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 119 [2019-11-22 09:38:13,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:38:13,958 INFO L225 Difference]: With dead ends: 150 [2019-11-22 09:38:13,958 INFO L226 Difference]: Without dead ends: 150 [2019-11-22 09:38:13,959 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 188 SyntacticMatches, 8 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=176, Invalid=2374, Unknown=0, NotChecked=0, Total=2550 [2019-11-22 09:38:13,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-22 09:38:13,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-11-22 09:38:13,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-22 09:38:13,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 152 transitions. [2019-11-22 09:38:13,963 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 152 transitions. Word has length 119 [2019-11-22 09:38:13,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:38:13,964 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 152 transitions. [2019-11-22 09:38:13,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-11-22 09:38:13,964 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 152 transitions. [2019-11-22 09:38:13,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-11-22 09:38:13,965 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:38:13,965 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:38:14,171 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:14,172 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:38:14,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:38:14,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1920404098, now seen corresponding path program 1 times [2019-11-22 09:38:14,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:38:14,175 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1828943] [2019-11-22 09:38:14,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 27 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:38:14,617 INFO L255 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-22 09:38:14,619 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:38:15,271 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:38:15,271 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:38:15,436 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:38:15,436 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1828943] [2019-11-22 09:38:15,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:38:15,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 20 [2019-11-22 09:38:15,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446427362] [2019-11-22 09:38:15,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-11-22 09:38:15,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:38:15,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-11-22 09:38:15,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2019-11-22 09:38:15,438 INFO L87 Difference]: Start difference. First operand 150 states and 152 transitions. Second operand 21 states. [2019-11-22 09:38:17,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:38:17,178 INFO L93 Difference]: Finished difference Result 149 states and 151 transitions. [2019-11-22 09:38:17,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-22 09:38:17,179 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 122 [2019-11-22 09:38:17,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:38:17,180 INFO L225 Difference]: With dead ends: 149 [2019-11-22 09:38:17,180 INFO L226 Difference]: Without dead ends: 149 [2019-11-22 09:38:17,181 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 217 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2019-11-22 09:38:17,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-11-22 09:38:17,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2019-11-22 09:38:17,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-11-22 09:38:17,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 151 transitions. [2019-11-22 09:38:17,185 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 151 transitions. Word has length 122 [2019-11-22 09:38:17,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:38:17,185 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 151 transitions. [2019-11-22 09:38:17,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-11-22 09:38:17,186 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 151 transitions. [2019-11-22 09:38:17,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-11-22 09:38:17,187 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:38:17,187 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:38:17,390 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:17,391 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:38:17,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:38:17,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1794433551, now seen corresponding path program 1 times [2019-11-22 09:38:17,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:38:17,393 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2064649864] [2019-11-22 09:38:17,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 28 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:38:18,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 157 conjunts are in the unsatisfiable core [2019-11-22 09:38:18,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:38:18,425 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16 treesize of output 12 [2019-11-22 09:38:18,425 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:18,434 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:18,434 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:18,434 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2019-11-22 09:38:18,517 INFO L343 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2019-11-22 09:38:18,517 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2019-11-22 09:38:18,518 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:18,533 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:18,533 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:18,533 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2019-11-22 09:38:18,607 INFO L343 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2019-11-22 09:38:18,608 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 36 treesize of output 38 [2019-11-22 09:38:18,608 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:18,624 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:18,624 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:18,624 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:37 [2019-11-22 09:38:18,819 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2019-11-22 09:38:18,819 INFO L343 Elim1Store]: treesize reduction 32, result has 77.5 percent of original size [2019-11-22 09:38:18,820 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 137 [2019-11-22 09:38:18,821 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:18,907 INFO L567 ElimStorePlain]: treesize reduction 84, result has 35.9 percent of original size [2019-11-22 09:38:18,908 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:18,908 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:47 [2019-11-22 09:38:55,924 WARN L192 SmtUtils]: Spent 36.95 s on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2019-11-22 09:38:55,925 INFO L343 Elim1Store]: treesize reduction 65, result has 70.7 percent of original size [2019-11-22 09:38:55,926 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 189 [2019-11-22 09:38:55,928 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:58,100 WARN L192 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 50 DAG size of output: 29 [2019-11-22 09:38:58,100 INFO L567 ElimStorePlain]: treesize reduction 148, result has 28.5 percent of original size [2019-11-22 09:38:58,101 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:58,101 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:59 [2019-11-22 09:38:58,322 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 28 [2019-11-22 09:38:58,323 INFO L343 Elim1Store]: treesize reduction 246, result has 15.2 percent of original size [2019-11-22 09:38:58,323 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 80 [2019-11-22 09:38:58,324 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:58,371 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:58,372 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:58,372 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:74, output treesize:70 [2019-11-22 09:38:58,668 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 33 [2019-11-22 09:38:58,669 INFO L343 Elim1Store]: treesize reduction 332, result has 13.8 percent of original size [2019-11-22 09:38:58,669 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 80 treesize of output 94 [2019-11-22 09:38:58,670 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:58,721 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:58,722 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:58,722 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:85, output treesize:81 [2019-11-22 09:38:59,229 WARN L192 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 38 [2019-11-22 09:38:59,229 INFO L343 Elim1Store]: treesize reduction 430, result has 12.6 percent of original size [2019-11-22 09:38:59,230 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 91 treesize of output 108 [2019-11-22 09:38:59,230 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:59,301 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:59,301 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:59,302 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:96, output treesize:92 [2019-11-22 09:38:59,812 WARN L192 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 43 [2019-11-22 09:38:59,812 INFO L343 Elim1Store]: treesize reduction 540, result has 11.6 percent of original size [2019-11-22 09:38:59,813 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 102 treesize of output 122 [2019-11-22 09:38:59,814 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:59,881 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:59,882 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:59,882 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:107, output treesize:103 [2019-11-22 09:39:00,939 WARN L192 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 99 [2019-11-22 09:39:00,940 INFO L343 Elim1Store]: treesize reduction 416, result has 45.3 percent of original size [2019-11-22 09:39:00,940 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 114 treesize of output 401 [2019-11-22 09:39:00,941 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:39:01,262 WARN L192 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 49 [2019-11-22 09:39:01,263 INFO L567 ElimStorePlain]: treesize reduction 264, result has 30.0 percent of original size [2019-11-22 09:39:01,264 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:39:01,264 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:117, output treesize:113 [2019-11-22 09:40:52,686 WARN L192 SmtUtils]: Spent 1.85 m on a formula simplification. DAG size of input: 289 DAG size of output: 140 [2019-11-22 09:40:52,687 INFO L343 Elim1Store]: treesize reduction 449, result has 51.1 percent of original size [2019-11-22 09:40:52,687 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 126 treesize of output 531 [2019-11-22 09:40:52,689 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:40:53,137 WARN L192 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 55 [2019-11-22 09:40:53,138 INFO L567 ElimStorePlain]: treesize reduction 460, result has 21.6 percent of original size [2019-11-22 09:40:53,138 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:40:53,139 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:131, output treesize:127 [2019-11-22 09:44:34,343 WARN L192 SmtUtils]: Spent 3.68 m on a formula simplification. DAG size of input: 339 DAG size of output: 181 [2019-11-22 09:44:34,344 INFO L343 Elim1Store]: treesize reduction 496, result has 54.5 percent of original size [2019-11-22 09:44:34,344 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 138 treesize of output 661 [2019-11-22 09:44:34,347 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:44:34,849 WARN L192 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 57 [2019-11-22 09:44:34,850 INFO L567 ElimStorePlain]: treesize reduction 460, result has 22.9 percent of original size [2019-11-22 09:44:34,851 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:44:34,851 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:137 [2019-11-22 09:44:35,099 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-11-22 09:46:13,832 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-11-22 09:46:14,033 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:46:14,034 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:118) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:178) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:163) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:133) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.simplifyWithStatistics(SmtUtils.java:220) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:361) 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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 55 more [2019-11-22 09:46:14,043 INFO L168 Benchmark]: Toolchain (without parser) took 550472.05 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 507.0 MB). Free memory was 956.3 MB in the beginning and 1.3 GB in the end (delta: -335.5 MB). Peak memory consumption was 171.5 MB. Max. memory is 11.5 GB. [2019-11-22 09:46:14,044 INFO L168 Benchmark]: CDTParser took 1.49 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. [2019-11-22 09:46:14,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 890.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -100.5 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-22 09:46:14,045 INFO L168 Benchmark]: Boogie Preprocessor took 98.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-22 09:46:14,045 INFO L168 Benchmark]: RCFGBuilder took 1578.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 942.1 MB in the end (delta: 107.9 MB). Peak memory consumption was 107.9 MB. Max. memory is 11.5 GB. [2019-11-22 09:46:14,045 INFO L168 Benchmark]: TraceAbstraction took 547900.12 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 391.6 MB). Free memory was 942.1 MB in the beginning and 1.3 GB in the end (delta: -349.8 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. [2019-11-22 09:46:14,047 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.49 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 890.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -100.5 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 98.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1578.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 942.1 MB in the end (delta: 107.9 MB). Peak memory consumption was 107.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 547900.12 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 391.6 MB). Free memory was 942.1 MB in the beginning and 1.3 GB in the end (delta: -349.8 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...