./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-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 32bit --witnessprinter.graph.data.programhash 902bca7b1502ca5dcb44bb7e7d9bc6d169c57d43 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 14:38:53,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 14:38:53,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 14:38:53,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 14:38:53,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 14:38:53,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 14:38:53,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 14:38:53,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 14:38:53,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 14:38:53,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 14:38:53,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 14:38:53,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 14:38:53,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 14:38:53,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 14:38:53,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 14:38:53,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 14:38:53,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 14:38:53,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 14:38:53,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 14:38:53,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 14:38:53,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 14:38:53,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 14:38:53,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 14:38:53,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 14:38:53,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 14:38:53,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 14:38:53,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 14:38:53,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 14:38:53,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 14:38:53,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 14:38:53,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 14:38:53,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 14:38:53,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 14:38:53,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 14:38:53,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 14:38:53,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 14:38:53,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 14:38:53,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 14:38:53,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 14:38:53,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 14:38:53,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 14:38:53,242 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 14:38:53,257 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 14:38:53,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 14:38:53,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 14:38:53,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 14:38:53,259 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 14:38:53,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 14:38:53,259 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 14:38:53,260 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 14:38:53,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 14:38:53,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 14:38:53,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 14:38:53,261 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 14:38:53,261 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 14:38:53,262 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 14:38:53,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 14:38:53,262 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 14:38:53,262 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 14:38:53,263 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 14:38:53,263 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 14:38:53,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 14:38:53,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 14:38:53,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 14:38:53,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 14:38:53,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 14:38:53,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 14:38:53,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 14:38:53,265 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 14:38:53,266 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 14:38:53,266 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 14:38:53,266 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 902bca7b1502ca5dcb44bb7e7d9bc6d169c57d43 [2019-11-21 14:38:53,551 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 14:38:53,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 14:38:53,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 14:38:53,577 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 14:38:53,579 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 14:38:53,580 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2019-11-21 14:38:53,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26149346d/1e874063560f41978f8463d6e5ffdaec/FLAG88c0ed410 [2019-11-21 14:38:54,206 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 14:38:54,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2019-11-21 14:38:54,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26149346d/1e874063560f41978f8463d6e5ffdaec/FLAG88c0ed410 [2019-11-21 14:38:54,459 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26149346d/1e874063560f41978f8463d6e5ffdaec [2019-11-21 14:38:54,465 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 14:38:54,467 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 14:38:54,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 14:38:54,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 14:38:54,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 14:38:54,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:38:54" (1/1) ... [2019-11-21 14:38:54,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db30c08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:38:54, skipping insertion in model container [2019-11-21 14:38:54,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:38:54" (1/1) ... [2019-11-21 14:38:54,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 14:38:54,548 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 14:38:55,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 14:38:55,140 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 14:38:55,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 14:38:55,289 INFO L205 MainTranslator]: Completed translation [2019-11-21 14:38:55,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:38:55 WrapperNode [2019-11-21 14:38:55,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 14:38:55,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 14:38:55,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 14:38:55,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 14:38:55,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:38:55" (1/1) ... [2019-11-21 14:38:55,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:38:55" (1/1) ... [2019-11-21 14:38:55,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:38:55" (1/1) ... [2019-11-21 14:38:55,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:38:55" (1/1) ... [2019-11-21 14:38:55,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:38:55" (1/1) ... [2019-11-21 14:38:55,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:38:55" (1/1) ... [2019-11-21 14:38:55,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:38:55" (1/1) ... [2019-11-21 14:38:55,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 14:38:55,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 14:38:55,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 14:38:55,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 14:38:55,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:38:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 14:38:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 14:38:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 14:38:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 14:38:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 14:38:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 14:38:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 14:38:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 14:38:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 14:38:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 14:38:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 14:38:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 14:38:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 14:38:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 14:38:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 14:38:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 14:38:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 14:38:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 14:38:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 14:38:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 14:38:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 14:38:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 14:38:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 14:38:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 14:38:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 14:38:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 14:38:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 14:38:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 14:38:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 14:38:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 14:38:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 14:38:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 14:38:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 14:38:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 14:38:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 14:38:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 14:38:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 14:38:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 14:38:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 14:38:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 14:38:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 14:38:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 14:38:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-21 14:38:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-21 14:38:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 14:38:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 14:38:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 14:38:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 14:38:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 14:38:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 14:38:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 14:38:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 14:38:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 14:38:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 14:38:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 14:38:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 14:38:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 14:38:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 14:38:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 14:38:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 14:38:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 14:38:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 14:38:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 14:38:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 14:38:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 14:38:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 14:38:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 14:38:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 14:38:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 14:38:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 14:38:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 14:38:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 14:38:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 14:38:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 14:38:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 14:38:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 14:38:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 14:38:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 14:38:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 14:38:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 14:38:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 14:38:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 14:38:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 14:38:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 14:38:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 14:38:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 14:38:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 14:38:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 14:38:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 14:38:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 14:38:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 14:38:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 14:38:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 14:38:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 14:38:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 14:38:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 14:38:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 14:38:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 14:38:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 14:38:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 14:38:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 14:38:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 14:38:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 14:38:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 14:38:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 14:38:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 14:38:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 14:38:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 14:38:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 14:38:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 14:38:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 14:38:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 14:38:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 14:38:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 14:38:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 14:38:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 14:38:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 14:38:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 14:38:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 14:38:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 14:38:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 14:38:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 14:38:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 14:38:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 14:38:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 14:38:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 14:38:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 14:38:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 14:38:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 14:38:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 14:38:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 14:38:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 14:38:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 14:38:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 14:38:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 14:38:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 14:38:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 14:38:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 14:38:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 14:38:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 14:38:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 14:38:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 14:38:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 14:38:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 14:38:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 14:38:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 14:38:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 14:38:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 14:38:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 14:38:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 14:38:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 14:38:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 14:38:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 14:38:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 14:38:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 14:38:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 14:38:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 14:38:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 14:38:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 14:38:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 14:38:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 14:38:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 14:38:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 14:38:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 14:38:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 14:38:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 14:38:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 14:38:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 14:38:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 14:38:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 14:38:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 14:38:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 14:38:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 14:38:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 14:38:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 14:38:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 14:38:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 14:38:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 14:38:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 14:38:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 14:38:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 14:38:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 14:38:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 14:38:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 14:38:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 14:38:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 14:38:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 14:38:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 14:38:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 14:38:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 14:38:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 14:38:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 14:38:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 14:38:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 14:38:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 14:38:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 14:38:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 14:38:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 14:38:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 14:38:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 14:38:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 14:38:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 14:38:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 14:38:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 14:38:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-21 14:38:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-21 14:38:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-21 14:38:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 14:38:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 14:38:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 14:38:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 14:38:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 14:38:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 14:38:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 14:38:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 14:38:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 14:38:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 14:38:56,227 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 14:38:56,731 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 14:38:57,300 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 14:38:57,301 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-21 14:38:57,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:38:57 BoogieIcfgContainer [2019-11-21 14:38:57,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 14:38:57,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 14:38:57,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 14:38:57,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 14:38:57,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:38:54" (1/3) ... [2019-11-21 14:38:57,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1db324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:38:57, skipping insertion in model container [2019-11-21 14:38:57,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:38:55" (2/3) ... [2019-11-21 14:38:57,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1db324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:38:57, skipping insertion in model container [2019-11-21 14:38:57,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:38:57" (3/3) ... [2019-11-21 14:38:57,312 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_2-2.i [2019-11-21 14:38:57,321 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 14:38:57,330 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-21 14:38:57,343 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-21 14:38:57,366 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 14:38:57,366 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 14:38:57,369 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 14:38:57,369 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 14:38:57,369 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 14:38:57,369 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 14:38:57,369 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 14:38:57,370 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 14:38:57,390 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2019-11-21 14:38:57,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 14:38:57,401 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:38:57,402 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:38:57,403 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:38:57,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:38:57,409 INFO L82 PathProgramCache]: Analyzing trace with hash 597436025, now seen corresponding path program 1 times [2019-11-21 14:38:57,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:38:57,422 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1707007299] [2019-11-21 14:38:57,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:38:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:38:57,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:38:57,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:38:57,866 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:38:57,869 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:38:57,880 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:38:57,880 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:38:57,880 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 14:38:57,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:38:57,923 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:38:57,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:38:58,000 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1707007299] [2019-11-21 14:38:58,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:38:58,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 14:38:58,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546709850] [2019-11-21 14:38:58,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:38:58,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:38:58,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:38:58,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:38:58,038 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 5 states. [2019-11-21 14:38:58,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:38:58,328 INFO L93 Difference]: Finished difference Result 93 states and 105 transitions. [2019-11-21 14:38:58,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:38:58,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 14:38:58,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:38:58,342 INFO L225 Difference]: With dead ends: 93 [2019-11-21 14:38:58,343 INFO L226 Difference]: Without dead ends: 90 [2019-11-21 14:38:58,345 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:38:58,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-21 14:38:58,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2019-11-21 14:38:58,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-21 14:38:58,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2019-11-21 14:38:58,396 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 22 [2019-11-21 14:38:58,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:38:58,397 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2019-11-21 14:38:58,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:38:58,397 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2019-11-21 14:38:58,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 14:38:58,400 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:38:58,400 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:38:58,603 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:38:58,605 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:38:58,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:38:58,606 INFO L82 PathProgramCache]: Analyzing trace with hash 597436026, now seen corresponding path program 1 times [2019-11-21 14:38:58,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:38:58,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [794204885] [2019-11-21 14:38:58,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:38:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:38:58,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-21 14:38:58,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:38:58,957 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:38:58,957 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:38:58,964 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:38:58,964 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:38:58,965 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 14:38:59,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:38:59,157 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:38:59,843 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:39:00,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:39:00,380 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [794204885] [2019-11-21 14:39:00,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:39:00,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 17 [2019-11-21 14:39:00,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399640669] [2019-11-21 14:39:00,382 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-21 14:39:00,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:39:00,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-21 14:39:00,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-11-21 14:39:00,384 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand 18 states. [2019-11-21 14:39:02,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:39:02,041 INFO L93 Difference]: Finished difference Result 98 states and 113 transitions. [2019-11-21 14:39:02,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-21 14:39:02,042 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2019-11-21 14:39:02,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:39:02,044 INFO L225 Difference]: With dead ends: 98 [2019-11-21 14:39:02,044 INFO L226 Difference]: Without dead ends: 98 [2019-11-21 14:39:02,045 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2019-11-21 14:39:02,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-21 14:39:02,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 91. [2019-11-21 14:39:02,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-21 14:39:02,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2019-11-21 14:39:02,058 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 22 [2019-11-21 14:39:02,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:39:02,058 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2019-11-21 14:39:02,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-21 14:39:02,058 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2019-11-21 14:39:02,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 14:39:02,059 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:39:02,059 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:39:02,260 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:02,261 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:39:02,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:39:02,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1484939706, now seen corresponding path program 1 times [2019-11-21 14:39:02,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:39:02,264 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [815191467] [2019-11-21 14:39:02,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:39:02,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 14:39:02,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:39:02,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:39:02,512 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:39:02,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:39:02,555 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [815191467] [2019-11-21 14:39:02,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:39:02,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 14:39:02,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020795157] [2019-11-21 14:39:02,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:39:02,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:39:02,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:39:02,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:39:02,557 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand 5 states. [2019-11-21 14:39:02,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:39:02,614 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2019-11-21 14:39:02,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:39:02,615 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 14:39:02,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:39:02,617 INFO L225 Difference]: With dead ends: 90 [2019-11-21 14:39:02,617 INFO L226 Difference]: Without dead ends: 90 [2019-11-21 14:39:02,617 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:39:02,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-21 14:39:02,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-11-21 14:39:02,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-21 14:39:02,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2019-11-21 14:39:02,627 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 22 [2019-11-21 14:39:02,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:39:02,627 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2019-11-21 14:39:02,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:39:02,627 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2019-11-21 14:39:02,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 14:39:02,628 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:39:02,629 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] [2019-11-21 14:39:02,831 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:02,833 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:39:02,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:39:02,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1341474425, now seen corresponding path program 1 times [2019-11-21 14:39:02,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:39:02,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [464183048] [2019-11-21 14:39:02,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:39:03,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:39:03,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:39:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:39:03,078 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:39:03,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:39:03,169 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [464183048] [2019-11-21 14:39:03,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:39:03,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 14:39:03,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131843764] [2019-11-21 14:39:03,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:39:03,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:39:03,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:39:03,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:39:03,172 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand 5 states. [2019-11-21 14:39:03,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:39:03,237 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2019-11-21 14:39:03,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:39:03,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-21 14:39:03,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:39:03,241 INFO L225 Difference]: With dead ends: 90 [2019-11-21 14:39:03,242 INFO L226 Difference]: Without dead ends: 90 [2019-11-21 14:39:03,242 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:39:03,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-21 14:39:03,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-11-21 14:39:03,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-21 14:39:03,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2019-11-21 14:39:03,250 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 23 [2019-11-21 14:39:03,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:39:03,250 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2019-11-21 14:39:03,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:39:03,251 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2019-11-21 14:39:03,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 14:39:03,252 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:39:03,252 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] [2019-11-21 14:39:03,454 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:03,456 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:39:03,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:39:03,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1210682536, now seen corresponding path program 1 times [2019-11-21 14:39:03,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:39:03,458 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [894056324] [2019-11-21 14:39:03,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:39:03,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 14:39:03,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:39:03,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:39:03,702 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:39:03,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:39:03,760 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [894056324] [2019-11-21 14:39:03,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:39:03,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 14:39:03,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743077986] [2019-11-21 14:39:03,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 14:39:03,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:39:03,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 14:39:03,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 14:39:03,762 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand 3 states. [2019-11-21 14:39:03,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:39:03,926 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2019-11-21 14:39:03,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 14:39:03,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-21 14:39:03,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:39:03,929 INFO L225 Difference]: With dead ends: 126 [2019-11-21 14:39:03,929 INFO L226 Difference]: Without dead ends: 121 [2019-11-21 14:39:03,930 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 14:39:03,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-21 14:39:03,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 86. [2019-11-21 14:39:03,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-21 14:39:03,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2019-11-21 14:39:03,938 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 23 [2019-11-21 14:39:03,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:39:03,939 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2019-11-21 14:39:03,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 14:39:03,939 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2019-11-21 14:39:03,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 14:39:03,940 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:39:03,940 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:39:04,144 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:04,146 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:39:04,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:39:04,147 INFO L82 PathProgramCache]: Analyzing trace with hash -343863878, now seen corresponding path program 1 times [2019-11-21 14:39:04,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:39:04,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [604485508] [2019-11-21 14:39:04,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:39:04,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-21 14:39:04,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:39:04,511 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:39:04,511 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:39:04,516 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:39:04,516 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:39:04,517 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 14:39:04,912 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:39:04,913 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:39:06,598 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:39:07,266 WARN L192 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-11-21 14:39:07,865 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:39:07,866 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [604485508] [2019-11-21 14:39:07,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:39:07,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2019-11-21 14:39:07,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972397718] [2019-11-21 14:39:07,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-21 14:39:07,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:39:07,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-21 14:39:07,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2019-11-21 14:39:07,869 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand 25 states. [2019-11-21 14:39:10,080 WARN L192 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2019-11-21 14:39:10,470 WARN L192 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 29 [2019-11-21 14:39:10,977 WARN L192 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-21 14:39:11,286 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-11-21 14:39:12,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:39:12,885 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2019-11-21 14:39:12,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-21 14:39:12,886 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 28 [2019-11-21 14:39:12,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:39:12,887 INFO L225 Difference]: With dead ends: 101 [2019-11-21 14:39:12,887 INFO L226 Difference]: Without dead ends: 101 [2019-11-21 14:39:12,888 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=246, Invalid=944, Unknown=0, NotChecked=0, Total=1190 [2019-11-21 14:39:12,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-11-21 14:39:12,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2019-11-21 14:39:12,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-21 14:39:12,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2019-11-21 14:39:12,896 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 28 [2019-11-21 14:39:12,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:39:12,897 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2019-11-21 14:39:12,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-21 14:39:12,897 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2019-11-21 14:39:12,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 14:39:12,898 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:39:12,898 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] [2019-11-21 14:39:13,098 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:13,099 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:39:13,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:39:13,100 INFO L82 PathProgramCache]: Analyzing trace with hash 2025519899, now seen corresponding path program 1 times [2019-11-21 14:39:13,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:39:13,101 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1586021215] [2019-11-21 14:39:13,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:39:13,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-21 14:39:13,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:39:13,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:39:13,485 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:39:13,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:39:13,703 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1586021215] [2019-11-21 14:39:13,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:39:13,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 14 [2019-11-21 14:39:13,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768886877] [2019-11-21 14:39:13,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 14:39:13,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:39:13,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 14:39:13,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-21 14:39:13,705 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 14 states. [2019-11-21 14:39:14,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:39:14,111 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2019-11-21 14:39:14,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 14:39:14,113 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 35 [2019-11-21 14:39:14,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:39:14,116 INFO L225 Difference]: With dead ends: 140 [2019-11-21 14:39:14,117 INFO L226 Difference]: Without dead ends: 137 [2019-11-21 14:39:14,118 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2019-11-21 14:39:14,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-21 14:39:14,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2019-11-21 14:39:14,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-11-21 14:39:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2019-11-21 14:39:14,146 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 35 [2019-11-21 14:39:14,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:39:14,146 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2019-11-21 14:39:14,147 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 14:39:14,147 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2019-11-21 14:39:14,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 14:39:14,151 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:39:14,151 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:39:14,354 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:14,359 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:39:14,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:39:14,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1928439432, now seen corresponding path program 1 times [2019-11-21 14:39:14,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:39:14,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [398739611] [2019-11-21 14:39:14,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:39:14,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 14:39:14,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:39:14,675 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:39:14,675 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:39:14,676 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:39:14,677 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:39:14,677 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 14:39:14,775 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:39:14,775 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-21 14:39:14,778 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:39:14,801 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 14:39:14,801 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 14:39:14,802 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 14:39:14,831 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-21 14:39:14,831 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:39:19,245 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:39:19,246 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [398739611] [2019-11-21 14:39:19,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 14:39:19,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-21 14:39:19,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963762608] [2019-11-21 14:39:19,247 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 14:39:19,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:39:19,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 14:39:19,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=173, Unknown=1, NotChecked=0, Total=210 [2019-11-21 14:39:19,248 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 8 states. [2019-11-21 14:39:32,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:39:32,054 INFO L93 Difference]: Finished difference Result 157 states and 182 transitions. [2019-11-21 14:39:32,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 14:39:32,055 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-21 14:39:32,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:39:32,056 INFO L225 Difference]: With dead ends: 157 [2019-11-21 14:39:32,056 INFO L226 Difference]: Without dead ends: 157 [2019-11-21 14:39:32,057 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=83, Invalid=378, Unknown=1, NotChecked=0, Total=462 [2019-11-21 14:39:32,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-21 14:39:32,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 105. [2019-11-21 14:39:32,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-21 14:39:32,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2019-11-21 14:39:32,066 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 35 [2019-11-21 14:39:32,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:39:32,067 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2019-11-21 14:39:32,067 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 14:39:32,067 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2019-11-21 14:39:32,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 14:39:32,068 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:39:32,068 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:39:32,268 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:32,269 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:39:32,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:39:32,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1928439431, now seen corresponding path program 1 times [2019-11-21 14:39:32,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:39:32,271 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [572590680] [2019-11-21 14:39:32,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:39:32,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 35 conjunts are in the unsatisfiable core [2019-11-21 14:39:32,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:39:32,620 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:39:32,620 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:39:32,630 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:39:32,634 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:39:32,634 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:39:32,642 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:39:32,642 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:39:32,642 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 14:39:35,107 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:39:35,108 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-21 14:39:35,108 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:39:35,134 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:39:35,140 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-21 14:39:35,141 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:39:35,180 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:39:35,181 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 14:39:35,181 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:37, output treesize:21 [2019-11-21 14:39:35,262 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:39:35,262 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:39:35,522 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:39:37,823 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:39:37,824 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:39:37,824 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:39:37,826 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:39:37,827 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:39:37,828 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:39:37,829 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:39:48,435 WARN L192 SmtUtils]: Spent 7.40 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 14:39:48,440 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:39:58,468 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2019-11-21 14:39:59,158 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_231|], 2=[|v_#length_186|]} [2019-11-21 14:39:59,163 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 14:39:59,165 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:39:59,166 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:39:59,166 INFO L464 ElimStorePlain]: Eliminatee |v_#length_186| vanished before elimination [2019-11-21 14:39:59,167 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:39:59,167 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:30, output treesize:1 [2019-11-21 14:39:59,170 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:39:59,952 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 14:39:59,963 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 14:39:59,963 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:39:59,981 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:39:59,984 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 14:39:59,985 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:40:00,004 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:40:00,005 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 14:40:00,005 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:34, output treesize:17 [2019-11-21 14:40:00,220 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:40:00,221 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [572590680] [2019-11-21 14:40:00,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:40:00,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 29 [2019-11-21 14:40:00,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400471442] [2019-11-21 14:40:00,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-21 14:40:00,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:40:00,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-21 14:40:00,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=774, Unknown=5, NotChecked=0, Total=870 [2019-11-21 14:40:00,223 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 30 states. [2019-11-21 14:40:06,269 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|)))) is different from false [2019-11-21 14:40:43,521 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (= c_ldv_malloc_~size |c_ldv_malloc_#in~size|) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (= (_ bv0 32) |c_ldv_malloc_#res.offset|) (= (bvadd (select |c_#valid| |c_ldv_malloc_#res.base|) (_ bv1 1)) (_ bv0 1)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|)) is different from false [2019-11-21 14:41:14,231 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 25 [2019-11-21 14:41:50,124 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (= (_ bv1 1) (select |c_#valid| c_entry_point_~array~0.base)) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (= c_entry_point_~i~2 (_ bv0 32)) (forall ((v_prenex_13 (_ BitVec 32)) (v_ldv_malloc_~size_42 (_ BitVec 32))) (or (not (= (select |c_#valid| v_prenex_13) (_ bv0 1))) (bvsle (bvadd c_entry_point_~array~0.offset (_ bv4 32)) (select (store |c_#length| v_prenex_13 v_ldv_malloc_~size_42) c_entry_point_~array~0.base)))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (or (bvsle (_ bv0 32) c_entry_point_~array~0.offset) (forall ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_34|) (_ bv0 1))))) (= (bvmul (_ bv4 32) c_entry_point_~len~0) (select |c_#length| c_entry_point_~array~0.base)) (bvsgt c_entry_point_~len~0 (_ bv0 32)) (or (bvsle c_entry_point_~array~0.offset (bvadd c_entry_point_~array~0.offset (_ bv4 32))) (forall ((v_prenex_14 (_ BitVec 32))) (not (= (select |c_#valid| v_prenex_14) (_ bv0 1))))) (= (_ bv0 32) c_entry_point_~array~0.offset)) is different from false [2019-11-21 14:41:50,696 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-11-21 14:41:55,504 WARN L192 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2019-11-21 14:41:58,321 WARN L192 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-11-21 14:42:11,975 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-11-21 14:43:10,528 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse8 (bvmul c_alloc_17_~i~0 (_ bv4 32)))) (let ((.cse2 (bvadd .cse8 c_alloc_17_~array.offset (_ bv4 32))) (.cse7 (bvadd .cse8 c_alloc_17_~array.offset))) (let ((.cse0 (bvsle (_ bv0 32) .cse7)) (.cse6 (bvsle .cse7 .cse2)) (.cse1 (forall ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_34|) (_ bv0 1)))))) (and (or .cse0 .cse1) (forall ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32)) (v_ldv_malloc_~size_42 (_ BitVec 32))) (or (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_34|) (_ bv0 1))) (bvsle (bvadd (bvmul c_alloc_17_~i~0 (_ bv4 32)) c_alloc_17_~array.offset (_ bv4 32)) (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_34| v_ldv_malloc_~size_42) c_alloc_17_~array.base)))) (bvsle .cse2 (select |c_#length| c_alloc_17_~array.base)) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse5 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse3 (bvadd .cse5 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse4 (bvadd .cse5 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse3)) (bvsle .cse4 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse3 .cse4)))))) .cse0 .cse6 (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (or .cse6 .cse1))))) is different from false [2019-11-21 14:43:42,958 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv1 1) (select |c_#valid| c_alloc_17_~array.base)) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= c_alloc_17_~array.offset (_ bv0 32)) (= (_ bv0 32) c_alloc_17_~i~0) (exists ((entry_point_~len~0 (_ BitVec 32))) (and (not (bvslt (_ bv1 32) entry_point_~len~0)) (= (bvmul (_ bv4 32) entry_point_~len~0) (select |c_#length| c_alloc_17_~array.base)) (bvsgt entry_point_~len~0 (_ bv0 32))))) is different from false [2019-11-21 14:43:51,545 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-21 14:44:27,380 WARN L192 SmtUtils]: Spent 6.09 s on a formula simplification. DAG size of input: 46 DAG size of output: 16 [2019-11-21 14:45:15,154 WARN L192 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-11-21 14:45:20,955 WARN L192 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-21 14:45:23,503 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv1 1) (select |c_#valid| c_alloc_17_~array.base)) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= |c_#valid| |c_old(#valid)|) (exists ((entry_point_~len~0 (_ BitVec 32))) (and (not (bvslt (_ bv1 32) entry_point_~len~0)) (bvsgt entry_point_~len~0 (_ bv0 32)) (= (bvmul (_ bv4 32) entry_point_~len~0) (select |c_#length| |c_alloc_17_#in~array.base|)))) (= |c_old(#length)| |c_#length|) (= c_alloc_17_~array.offset (_ bv0 32)) (= (_ bv0 32) c_alloc_17_~i~0) (= (_ bv1 1) (select |c_#valid| |c_alloc_17_#in~array.base|)) (= |c_alloc_17_#in~array.offset| (_ bv0 32)) (exists ((entry_point_~len~0 (_ BitVec 32))) (and (not (bvslt (_ bv1 32) entry_point_~len~0)) (= (bvmul (_ bv4 32) entry_point_~len~0) (select |c_#length| c_alloc_17_~array.base)) (bvsgt entry_point_~len~0 (_ bv0 32))))) is different from false [2019-11-21 14:46:34,993 WARN L192 SmtUtils]: Spent 1.10 m on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-11-21 14:46:46,492 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-21 14:47:01,221 WARN L192 SmtUtils]: Spent 6.22 s on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2019-11-21 14:47:25,379 WARN L192 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-11-21 14:48:19,382 WARN L192 SmtUtils]: Spent 16.62 s on a formula simplification. DAG size of input: 71 DAG size of output: 33 [2019-11-21 14:48:24,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:48:24,731 INFO L93 Difference]: Finished difference Result 295 states and 352 transitions. [2019-11-21 14:48:24,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2019-11-21 14:48:24,732 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 35 [2019-11-21 14:48:24,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:48:24,735 INFO L225 Difference]: With dead ends: 295 [2019-11-21 14:48:24,736 INFO L226 Difference]: Without dead ends: 295 [2019-11-21 14:48:24,742 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 39 SyntacticMatches, 7 SemanticMatches, 63 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 307.0s TimeCoverageRelationStatistics Valid=359, Invalid=3024, Unknown=63, NotChecked=714, Total=4160 [2019-11-21 14:48:24,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2019-11-21 14:48:24,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 181. [2019-11-21 14:48:24,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2019-11-21 14:48:24,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 244 transitions. [2019-11-21 14:48:24,763 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 244 transitions. Word has length 35 [2019-11-21 14:48:24,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:48:24,763 INFO L462 AbstractCegarLoop]: Abstraction has 181 states and 244 transitions. [2019-11-21 14:48:24,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-11-21 14:48:24,764 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 244 transitions. [2019-11-21 14:48:24,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-21 14:48:24,768 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:48:24,768 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:48:24,968 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:48:24,971 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:48:24,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:48:24,972 INFO L82 PathProgramCache]: Analyzing trace with hash -2099434107, now seen corresponding path program 1 times [2019-11-21 14:48:24,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:48:24,973 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [350718734] [2019-11-21 14:48:24,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:48:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:48:25,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:48:25,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:48:25,283 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-21 14:48:25,283 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:48:25,330 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-21 14:48:25,332 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [350718734] [2019-11-21 14:48:25,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:48:25,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 14:48:25,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167252982] [2019-11-21 14:48:25,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:48:25,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:48:25,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:48:25,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:48:25,333 INFO L87 Difference]: Start difference. First operand 181 states and 244 transitions. Second operand 5 states. [2019-11-21 14:48:25,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:48:25,424 INFO L93 Difference]: Finished difference Result 191 states and 255 transitions. [2019-11-21 14:48:25,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 14:48:25,424 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-11-21 14:48:25,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:48:25,429 INFO L225 Difference]: With dead ends: 191 [2019-11-21 14:48:25,429 INFO L226 Difference]: Without dead ends: 191 [2019-11-21 14:48:25,429 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 14:48:25,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2019-11-21 14:48:25,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 178. [2019-11-21 14:48:25,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-11-21 14:48:25,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 236 transitions. [2019-11-21 14:48:25,443 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 236 transitions. Word has length 37 [2019-11-21 14:48:25,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:48:25,443 INFO L462 AbstractCegarLoop]: Abstraction has 178 states and 236 transitions. [2019-11-21 14:48:25,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:48:25,444 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 236 transitions. [2019-11-21 14:48:25,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-21 14:48:25,448 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:48:25,448 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:48:25,658 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:48:25,659 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:48:25,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:48:25,660 INFO L82 PathProgramCache]: Analyzing trace with hash -356623772, now seen corresponding path program 1 times [2019-11-21 14:48:25,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:48:25,660 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [275348460] [2019-11-21 14:48:25,660 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 [2019-11-21 14:48:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:48:25,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 14:48:25,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:48:25,960 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-21 14:48:25,960 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:48:25,990 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-21 14:48:25,991 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [275348460] [2019-11-21 14:48:25,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:48:25,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 14:48:25,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117522276] [2019-11-21 14:48:25,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 14:48:25,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:48:25,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 14:48:25,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 14:48:25,993 INFO L87 Difference]: Start difference. First operand 178 states and 236 transitions. Second operand 6 states. [2019-11-21 14:48:26,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:48:26,129 INFO L93 Difference]: Finished difference Result 188 states and 237 transitions. [2019-11-21 14:48:26,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:48:26,130 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-11-21 14:48:26,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:48:26,132 INFO L225 Difference]: With dead ends: 188 [2019-11-21 14:48:26,133 INFO L226 Difference]: Without dead ends: 188 [2019-11-21 14:48:26,133 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-21 14:48:26,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-11-21 14:48:26,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 171. [2019-11-21 14:48:26,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-11-21 14:48:26,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 220 transitions. [2019-11-21 14:48:26,141 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 220 transitions. Word has length 37 [2019-11-21 14:48:26,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:48:26,141 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 220 transitions. [2019-11-21 14:48:26,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 14:48:26,142 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 220 transitions. [2019-11-21 14:48:26,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-21 14:48:26,143 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:48:26,143 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:48:26,346 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:48:26,347 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:48:26,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:48:26,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1765265242, now seen corresponding path program 1 times [2019-11-21 14:48:26,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:48:26,349 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2002565690] [2019-11-21 14:48:26,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-21 14:48:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:48:26,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 14:48:26,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:48:26,680 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-21 14:48:26,680 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:48:26,724 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-21 14:48:26,724 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2002565690] [2019-11-21 14:48:26,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:48:26,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 14:48:26,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414750981] [2019-11-21 14:48:26,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:48:26,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:48:26,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:48:26,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:48:26,726 INFO L87 Difference]: Start difference. First operand 171 states and 220 transitions. Second operand 5 states. [2019-11-21 14:48:26,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:48:26,761 INFO L93 Difference]: Finished difference Result 147 states and 174 transitions. [2019-11-21 14:48:26,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:48:26,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2019-11-21 14:48:26,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:48:26,765 INFO L225 Difference]: With dead ends: 147 [2019-11-21 14:48:26,765 INFO L226 Difference]: Without dead ends: 147 [2019-11-21 14:48:26,766 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:48:26,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-11-21 14:48:26,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2019-11-21 14:48:26,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-11-21 14:48:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 171 transitions. [2019-11-21 14:48:26,772 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 171 transitions. Word has length 38 [2019-11-21 14:48:26,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:48:26,773 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 171 transitions. [2019-11-21 14:48:26,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:48:26,773 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 171 transitions. [2019-11-21 14:48:26,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-21 14:48:26,774 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:48:26,774 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:48:26,978 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:48:26,983 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:48:26,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:48:26,984 INFO L82 PathProgramCache]: Analyzing trace with hash 519015482, now seen corresponding path program 2 times [2019-11-21 14:48:26,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:48:26,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [576902043] [2019-11-21 14:48:26,985 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 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 [2019-11-21 14:48:27,333 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-21 14:48:27,333 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 14:48:27,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-21 14:48:27,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:48:27,367 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:48:27,367 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:48:27,374 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:48:27,374 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:48:27,374 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 14:48:28,176 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:48:28,177 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:48:29,007 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-11-21 14:48:29,881 WARN L192 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2019-11-21 14:48:30,580 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-21 14:48:31,074 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-21 14:48:31,581 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-21 14:48:32,161 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-21 14:48:33,206 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:48:34,153 WARN L192 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-11-21 14:48:34,971 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:48:34,971 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [576902043] [2019-11-21 14:48:34,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:48:34,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 33 [2019-11-21 14:48:34,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602988457] [2019-11-21 14:48:34,972 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-21 14:48:34,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:48:34,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-21 14:48:34,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=920, Unknown=0, NotChecked=0, Total=1122 [2019-11-21 14:48:34,973 INFO L87 Difference]: Start difference. First operand 145 states and 171 transitions. Second operand 34 states. [2019-11-21 14:48:36,466 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-21 14:48:37,213 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-21 14:48:37,931 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-21 14:48:38,670 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-21 14:48:39,326 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-11-21 14:48:40,023 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-11-21 14:48:42,752 WARN L192 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2019-11-21 14:48:44,533 WARN L192 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 98 DAG size of output: 29 [2019-11-21 14:48:46,829 WARN L192 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2019-11-21 14:48:48,791 WARN L192 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 29 [2019-11-21 14:48:50,947 WARN L192 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2019-11-21 14:48:52,985 WARN L192 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 28 [2019-11-21 14:48:54,864 WARN L192 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2019-11-21 14:48:56,461 WARN L192 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 29 [2019-11-21 14:48:58,256 WARN L192 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2019-11-21 14:48:59,333 WARN L192 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 29 [2019-11-21 14:49:00,392 WARN L192 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-21 14:49:02,000 WARN L192 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2019-11-21 14:49:02,732 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-11-21 14:49:04,613 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2019-11-21 14:49:07,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:49:07,634 INFO L93 Difference]: Finished difference Result 179 states and 233 transitions. [2019-11-21 14:49:07,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-21 14:49:07,636 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 40 [2019-11-21 14:49:07,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:49:07,638 INFO L225 Difference]: With dead ends: 179 [2019-11-21 14:49:07,638 INFO L226 Difference]: Without dead ends: 179 [2019-11-21 14:49:07,639 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 32.2s TimeCoverageRelationStatistics Valid=878, Invalid=2782, Unknown=0, NotChecked=0, Total=3660 [2019-11-21 14:49:07,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-11-21 14:49:07,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 169. [2019-11-21 14:49:07,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-11-21 14:49:07,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2019-11-21 14:49:07,649 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 40 [2019-11-21 14:49:07,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:49:07,649 INFO L462 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2019-11-21 14:49:07,649 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-21 14:49:07,649 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2019-11-21 14:49:07,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-21 14:49:07,650 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:49:07,650 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:49:07,858 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:49:07,858 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:49:07,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:49:07,859 INFO L82 PathProgramCache]: Analyzing trace with hash -725997882, now seen corresponding path program 1 times [2019-11-21 14:49:07,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:49:07,860 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [733748920] [2019-11-21 14:49:07,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-21 14:49:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:49:08,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 14:49:08,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:49:08,162 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 14:49:08,163 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:49:08,165 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:49:08,165 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:49:08,165 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 14:49:08,225 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-21 14:49:08,225 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:49:08,496 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:49:08,497 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 14:49:08,504 INFO L168 Benchmark]: Toolchain (without parser) took 614036.21 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 259.0 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 83.7 MB. Max. memory is 11.5 GB. [2019-11-21 14:49:08,504 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 14:49:08,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 822.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-21 14:49:08,505 INFO L168 Benchmark]: Boogie Preprocessor took 112.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 14:49:08,506 INFO L168 Benchmark]: RCFGBuilder took 1899.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.5 MB in the end (delta: 117.0 MB). Peak memory consumption was 117.0 MB. Max. memory is 11.5 GB. [2019-11-21 14:49:08,506 INFO L168 Benchmark]: TraceAbstraction took 611197.23 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 109.1 MB). Free memory was 988.5 MB in the beginning and 1.1 GB in the end (delta: -135.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 14:49:08,508 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 822.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 112.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1899.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.5 MB in the end (delta: 117.0 MB). Peak memory consumption was 117.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 611197.23 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 109.1 MB). Free memory was 988.5 MB in the beginning and 1.1 GB in the end (delta: -135.1 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...