./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 34ebb1e4 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_1-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 85051d52521692aaf1a0de9e5f8f895724c83314 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-34ebb1e [2019-11-21 15:42:38,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 15:42:38,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 15:42:38,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 15:42:38,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 15:42:38,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 15:42:38,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 15:42:38,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 15:42:38,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 15:42:38,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 15:42:38,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 15:42:38,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 15:42:38,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 15:42:38,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 15:42:38,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 15:42:38,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 15:42:38,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 15:42:38,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 15:42:38,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 15:42:38,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 15:42:38,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 15:42:38,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 15:42:38,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 15:42:38,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 15:42:38,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 15:42:38,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 15:42:38,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 15:42:38,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 15:42:38,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 15:42:38,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 15:42:38,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 15:42:38,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 15:42:38,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 15:42:38,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 15:42:38,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 15:42:38,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 15:42:38,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 15:42:38,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 15:42:38,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 15:42:38,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 15:42:38,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 15:42:38,103 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 15:42:38,141 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 15:42:38,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 15:42:38,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 15:42:38,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 15:42:38,146 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 15:42:38,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 15:42:38,147 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 15:42:38,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 15:42:38,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 15:42:38,149 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 15:42:38,149 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 15:42:38,149 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 15:42:38,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 15:42:38,150 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 15:42:38,150 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 15:42:38,151 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 15:42:38,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 15:42:38,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 15:42:38,152 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 15:42:38,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 15:42:38,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 15:42:38,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 15:42:38,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 15:42:38,153 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 15:42:38,153 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 15:42:38,154 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 15:42:38,154 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85051d52521692aaf1a0de9e5f8f895724c83314 [2019-11-21 15:42:38,441 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 15:42:38,464 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 15:42:38,467 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 15:42:38,469 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 15:42:38,469 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 15:42:38,470 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i [2019-11-21 15:42:38,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b41e1a542/2164fb580ca44d0da8c09616db639179/FLAGca2ea4486 [2019-11-21 15:42:39,094 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 15:42:39,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i [2019-11-21 15:42:39,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b41e1a542/2164fb580ca44d0da8c09616db639179/FLAGca2ea4486 [2019-11-21 15:42:39,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b41e1a542/2164fb580ca44d0da8c09616db639179 [2019-11-21 15:42:39,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 15:42:39,421 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 15:42:39,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 15:42:39,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 15:42:39,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 15:42:39,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 03:42:39" (1/1) ... [2019-11-21 15:42:39,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462bd67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:42:39, skipping insertion in model container [2019-11-21 15:42:39,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 03:42:39" (1/1) ... [2019-11-21 15:42:39,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 15:42:39,498 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 15:42:40,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 15:42:40,022 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 15:42:40,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 15:42:40,189 INFO L205 MainTranslator]: Completed translation [2019-11-21 15:42:40,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:42:40 WrapperNode [2019-11-21 15:42:40,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 15:42:40,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 15:42:40,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 15:42:40,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 15:42:40,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:42:40" (1/1) ... [2019-11-21 15:42:40,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:42:40" (1/1) ... [2019-11-21 15:42:40,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:42:40" (1/1) ... [2019-11-21 15:42:40,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:42:40" (1/1) ... [2019-11-21 15:42:40,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:42:40" (1/1) ... [2019-11-21 15:42:40,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:42:40" (1/1) ... [2019-11-21 15:42:40,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:42:40" (1/1) ... [2019-11-21 15:42:40,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 15:42:40,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 15:42:40,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 15:42:40,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 15:42:40,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:42:40" (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 15:42:40,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 15:42:40,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 15:42:40,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 15:42:40,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 15:42:40,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 15:42:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 15:42:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 15:42:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 15:42:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 15:42:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 15:42:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 15:42:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 15:42:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 15:42:40,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 15:42:40,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 15:42:40,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 15:42:40,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 15:42:40,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 15:42:40,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 15:42:40,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 15:42:40,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 15:42:40,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 15:42:40,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 15:42:40,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 15:42:40,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 15:42:40,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 15:42:40,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 15:42:40,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 15:42:40,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 15:42:40,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 15:42:40,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 15:42:40,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 15:42:40,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 15:42:40,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 15:42:40,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 15:42:40,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 15:42:40,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 15:42:40,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 15:42:40,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 15:42:40,372 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 15:42:40,373 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 15:42:40,373 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-21 15:42:40,373 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-21 15:42:40,373 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 15:42:40,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 15:42:40,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 15:42:40,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 15:42:40,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 15:42:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 15:42:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 15:42:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 15:42:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 15:42:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 15:42:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 15:42:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 15:42:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 15:42:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 15:42:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 15:42:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 15:42:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 15:42:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 15:42:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 15:42:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 15:42:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 15:42:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 15:42:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 15:42:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 15:42:40,379 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 15:42:40,379 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 15:42:40,379 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 15:42:40,379 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 15:42:40,379 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 15:42:40,380 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 15:42:40,380 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 15:42:40,380 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 15:42:40,380 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 15:42:40,380 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 15:42:40,381 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 15:42:40,381 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 15:42:40,381 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 15:42:40,381 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 15:42:40,381 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 15:42:40,382 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 15:42:40,382 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 15:42:40,382 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 15:42:40,382 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 15:42:40,383 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 15:42:40,383 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 15:42:40,383 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 15:42:40,383 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 15:42:40,383 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 15:42:40,383 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 15:42:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 15:42:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 15:42:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 15:42:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 15:42:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 15:42:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 15:42:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 15:42:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 15:42:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 15:42:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 15:42:40,386 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 15:42:40,386 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 15:42:40,386 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 15:42:40,386 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 15:42:40,386 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 15:42:40,387 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 15:42:40,387 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 15:42:40,387 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 15:42:40,387 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 15:42:40,387 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 15:42:40,388 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 15:42:40,388 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 15:42:40,388 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 15:42:40,388 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 15:42:40,388 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 15:42:40,389 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 15:42:40,389 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 15:42:40,389 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 15:42:40,389 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 15:42:40,389 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 15:42:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 15:42:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 15:42:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 15:42:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 15:42:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 15:42:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 15:42:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 15:42:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 15:42:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 15:42:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 15:42:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 15:42:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 15:42:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 15:42:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 15:42:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 15:42:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 15:42:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 15:42:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 15:42:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 15:42:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 15:42:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 15:42:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 15:42:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 15:42:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 15:42:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 15:42:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 15:42:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 15:42:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 15:42:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 15:42:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 15:42:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 15:42:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 15:42:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 15:42:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 15:42:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 15:42:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 15:42:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 15:42:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 15:42:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 15:42:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 15:42:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 15:42:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 15:42:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 15:42:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 15:42:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 15:42:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 15:42:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 15:42:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 15:42:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 15:42:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 15:42:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 15:42:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 15:42:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 15:42:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 15:42:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 15:42:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 15:42:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 15:42:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 15:42:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 15:42:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 15:42:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 15:42:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 15:42:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 15:42:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 15:42:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 15:42:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 15:42:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 15:42:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 15:42:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 15:42:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 15:42:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 15:42:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 15:42:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 15:42:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 15:42:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 15:42:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 15:42:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 15:42:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 15:42:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 15:42:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 15:42:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 15:42:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-21 15:42:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-21 15:42:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 15:42:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 15:42:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 15:42:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 15:42:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 15:42:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 15:42:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 15:42:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 15:42:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 15:42:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 15:42:41,020 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 15:42:41,443 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 15:42:41,958 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 15:42:41,959 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-21 15:42:41,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 03:42:41 BoogieIcfgContainer [2019-11-21 15:42:41,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 15:42:41,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 15:42:41,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 15:42:41,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 15:42:41,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 03:42:39" (1/3) ... [2019-11-21 15:42:41,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75cc3dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 03:42:41, skipping insertion in model container [2019-11-21 15:42:41,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:42:40" (2/3) ... [2019-11-21 15:42:41,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75cc3dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 03:42:41, skipping insertion in model container [2019-11-21 15:42:41,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 03:42:41" (3/3) ... [2019-11-21 15:42:41,969 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-1.i [2019-11-21 15:42:41,980 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 15:42:41,988 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 87 error locations. [2019-11-21 15:42:42,001 INFO L249 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2019-11-21 15:42:42,022 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 15:42:42,023 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 15:42:42,023 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 15:42:42,023 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 15:42:42,024 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 15:42:42,024 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 15:42:42,024 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 15:42:42,024 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 15:42:42,046 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2019-11-21 15:42:42,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 15:42:42,058 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:42:42,059 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:42:42,060 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:42:42,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:42:42,067 INFO L82 PathProgramCache]: Analyzing trace with hash 525282912, now seen corresponding path program 1 times [2019-11-21 15:42:42,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:42:42,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1721582840] [2019-11-21 15:42:42,080 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 15:42:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:42:42,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 15:42:42,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:42:42,498 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 15:42:42,499 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:42:42,509 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:42:42,509 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:42:42,510 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 15:42:42,539 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 15:42:42,540 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:42:42,594 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 15:42:42,595 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1721582840] [2019-11-21 15:42:42,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:42:42,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 15:42:42,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665322555] [2019-11-21 15:42:42,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 15:42:42,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:42:42,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 15:42:42,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:42:42,624 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 5 states. [2019-11-21 15:42:42,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:42:42,953 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2019-11-21 15:42:42,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 15:42:42,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 15:42:42,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:42:42,977 INFO L225 Difference]: With dead ends: 81 [2019-11-21 15:42:42,977 INFO L226 Difference]: Without dead ends: 78 [2019-11-21 15:42:42,979 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:42:42,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-11-21 15:42:43,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2019-11-21 15:42:43,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-21 15:42:43,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2019-11-21 15:42:43,035 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 16 [2019-11-21 15:42:43,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:42:43,035 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2019-11-21 15:42:43,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 15:42:43,036 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2019-11-21 15:42:43,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 15:42:43,037 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:42:43,038 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:42:43,242 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:42:43,244 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:42:43,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:42:43,245 INFO L82 PathProgramCache]: Analyzing trace with hash 525282913, now seen corresponding path program 1 times [2019-11-21 15:42:43,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:42:43,246 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1634517874] [2019-11-21 15:42:43,246 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 15:42:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:42:43,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 15:42:43,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:42:43,580 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 15:42:43,580 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:42:43,590 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:42:43,591 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:42:43,591 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 15:42:43,690 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 15:42:43,690 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:42:44,585 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 15:42:44,585 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1634517874] [2019-11-21 15:42:44,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:42:44,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-21 15:42:44,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412803146] [2019-11-21 15:42:44,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 15:42:44,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:42:44,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 15:42:44,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-21 15:42:44,593 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand 14 states. [2019-11-21 15:42:45,966 WARN L192 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-11-21 15:42:46,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:42:46,335 INFO L93 Difference]: Finished difference Result 89 states and 105 transitions. [2019-11-21 15:42:46,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 15:42:46,337 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-21 15:42:46,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:42:46,339 INFO L225 Difference]: With dead ends: 89 [2019-11-21 15:42:46,339 INFO L226 Difference]: Without dead ends: 89 [2019-11-21 15:42:46,340 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2019-11-21 15:42:46,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-21 15:42:46,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2019-11-21 15:42:46,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-21 15:42:46,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2019-11-21 15:42:46,353 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 91 transitions. Word has length 16 [2019-11-21 15:42:46,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:42:46,353 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 91 transitions. [2019-11-21 15:42:46,353 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 15:42:46,353 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 91 transitions. [2019-11-21 15:42:46,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 15:42:46,354 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:42:46,355 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:42:46,557 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:42:46,558 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:42:46,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:42:46,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1412786593, now seen corresponding path program 1 times [2019-11-21 15:42:46,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:42:46,562 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [638769576] [2019-11-21 15:42:46,562 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 15:42:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:42:46,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 15:42:46,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:42:46,803 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 15:42:46,803 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:42:46,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:42:46,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [638769576] [2019-11-21 15:42:46,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:42:46,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 15:42:46,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070349549] [2019-11-21 15:42:46,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 15:42:46,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:42:46,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 15:42:46,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:42:46,855 INFO L87 Difference]: Start difference. First operand 79 states and 91 transitions. Second operand 5 states. [2019-11-21 15:42:46,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:42:46,913 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2019-11-21 15:42:46,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 15:42:46,915 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 15:42:46,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:42:46,916 INFO L225 Difference]: With dead ends: 78 [2019-11-21 15:42:46,918 INFO L226 Difference]: Without dead ends: 78 [2019-11-21 15:42:46,919 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:42:46,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-11-21 15:42:46,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2019-11-21 15:42:46,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-21 15:42:46,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2019-11-21 15:42:46,943 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 16 [2019-11-21 15:42:46,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:42:46,944 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2019-11-21 15:42:46,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 15:42:46,944 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2019-11-21 15:42:46,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 15:42:46,948 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:42:46,948 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:42:47,149 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:42:47,149 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:42:47,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:42:47,150 INFO L82 PathProgramCache]: Analyzing trace with hash -896115154, now seen corresponding path program 1 times [2019-11-21 15:42:47,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:42:47,150 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1381332463] [2019-11-21 15:42:47,150 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 15:42:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:42:47,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 15:42:47,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:42:47,381 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 15:42:47,381 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:42:47,462 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 15:42:47,463 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1381332463] [2019-11-21 15:42:47,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:42:47,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 15:42:47,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750104701] [2019-11-21 15:42:47,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 15:42:47,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:42:47,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 15:42:47,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:42:47,464 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 5 states. [2019-11-21 15:42:47,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:42:47,511 INFO L93 Difference]: Finished difference Result 78 states and 86 transitions. [2019-11-21 15:42:47,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 15:42:47,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 15:42:47,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:42:47,514 INFO L225 Difference]: With dead ends: 78 [2019-11-21 15:42:47,514 INFO L226 Difference]: Without dead ends: 78 [2019-11-21 15:42:47,515 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:42:47,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-11-21 15:42:47,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2019-11-21 15:42:47,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-21 15:42:47,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2019-11-21 15:42:47,524 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 17 [2019-11-21 15:42:47,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:42:47,524 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2019-11-21 15:42:47,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 15:42:47,524 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2019-11-21 15:42:47,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 15:42:47,525 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:42:47,525 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:42:47,726 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:42:47,727 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:42:47,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:42:47,728 INFO L82 PathProgramCache]: Analyzing trace with hash 846695181, now seen corresponding path program 1 times [2019-11-21 15:42:47,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:42:47,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [405303190] [2019-11-21 15:42:47,729 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 15:42:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:42:47,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 15:42:47,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:42:47,971 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 15:42:47,971 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:42:48,022 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 15:42:48,022 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [405303190] [2019-11-21 15:42:48,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:42:48,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 15:42:48,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570440390] [2019-11-21 15:42:48,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 15:42:48,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:42:48,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 15:42:48,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 15:42:48,024 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 3 states. [2019-11-21 15:42:48,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:42:48,169 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2019-11-21 15:42:48,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 15:42:48,169 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-21 15:42:48,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:42:48,171 INFO L225 Difference]: With dead ends: 114 [2019-11-21 15:42:48,171 INFO L226 Difference]: Without dead ends: 109 [2019-11-21 15:42:48,171 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 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 15:42:48,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-21 15:42:48,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 74. [2019-11-21 15:42:48,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-21 15:42:48,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2019-11-21 15:42:48,181 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 17 [2019-11-21 15:42:48,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:42:48,181 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2019-11-21 15:42:48,181 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 15:42:48,181 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2019-11-21 15:42:48,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 15:42:48,182 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:42:48,183 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:42:48,386 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:42:48,387 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:42:48,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:42:48,388 INFO L82 PathProgramCache]: Analyzing trace with hash 445572097, now seen corresponding path program 1 times [2019-11-21 15:42:48,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:42:48,389 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1896876737] [2019-11-21 15:42:48,389 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 15:42:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:42:48,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-21 15:42:48,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:42:48,692 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 15:42:48,692 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:42:48,698 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:42:48,699 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:42:48,699 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 15:42:48,857 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 15:42:48,857 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:42:49,773 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:42:50,179 WARN L192 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-21 15:42:50,582 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 15:42:50,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1896876737] [2019-11-21 15:42:50,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 15:42:50,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2019-11-21 15:42:50,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34077917] [2019-11-21 15:42:50,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-21 15:42:50,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:42:50,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-21 15:42:50,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-21 15:42:50,585 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 19 states. [2019-11-21 15:42:51,552 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2019-11-21 15:42:51,845 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2019-11-21 15:42:52,325 WARN L192 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 15:42:52,799 WARN L192 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 15:42:53,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:42:53,604 INFO L93 Difference]: Finished difference Result 91 states and 104 transitions. [2019-11-21 15:42:53,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-21 15:42:53,605 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2019-11-21 15:42:53,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:42:53,606 INFO L225 Difference]: With dead ends: 91 [2019-11-21 15:42:53,606 INFO L226 Difference]: Without dead ends: 91 [2019-11-21 15:42:53,606 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2019-11-21 15:42:53,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-21 15:42:53,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 86. [2019-11-21 15:42:53,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-21 15:42:53,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions. [2019-11-21 15:42:53,615 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 22 [2019-11-21 15:42:53,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:42:53,616 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions. [2019-11-21 15:42:53,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-21 15:42:53,616 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2019-11-21 15:42:53,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 15:42:53,618 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:42:53,618 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 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 15:42:53,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:42:53,822 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:42:53,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:42:53,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1352798049, now seen corresponding path program 1 times [2019-11-21 15:42:53,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:42:53,824 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2016012950] [2019-11-21 15:42:53,824 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 15:42:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:42:54,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 15:42:54,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:42:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:42:54,211 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:42:54,329 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:42:54,330 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2016012950] [2019-11-21 15:42:54,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 15:42:54,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-21 15:42:54,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417667579] [2019-11-21 15:42:54,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-21 15:42:54,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:42:54,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-21 15:42:54,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-21 15:42:54,331 INFO L87 Difference]: Start difference. First operand 86 states and 95 transitions. Second operand 12 states. [2019-11-21 15:42:54,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:42:54,765 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2019-11-21 15:42:54,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 15:42:54,766 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2019-11-21 15:42:54,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:42:54,768 INFO L225 Difference]: With dead ends: 92 [2019-11-21 15:42:54,768 INFO L226 Difference]: Without dead ends: 92 [2019-11-21 15:42:54,769 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-11-21 15:42:54,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-21 15:42:54,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2019-11-21 15:42:54,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-21 15:42:54,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2019-11-21 15:42:54,776 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 35 [2019-11-21 15:42:54,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:42:54,777 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2019-11-21 15:42:54,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-21 15:42:54,777 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2019-11-21 15:42:54,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-21 15:42:54,778 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:42:54,778 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:42:54,988 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:42:54,990 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:42:54,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:42:54,990 INFO L82 PathProgramCache]: Analyzing trace with hash 211035969, now seen corresponding path program 2 times [2019-11-21 15:42:54,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:42:54,991 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [494235865] [2019-11-21 15:42:54,992 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 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 15:42:55,328 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-21 15:42:55,328 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 15:42:55,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-21 15:42:55,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:42:55,349 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 15:42:55,349 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:42:55,356 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:42:55,356 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:42:55,356 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 15:42:55,655 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 15:42:55,656 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:42:57,606 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:42:57,972 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-21 15:42:58,422 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 15:42:58,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [494235865] [2019-11-21 15:42:58,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 15:42:58,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2019-11-21 15:42:58,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028638307] [2019-11-21 15:42:58,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-11-21 15:42:58,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:42:58,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-11-21 15:42:58,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2019-11-21 15:42:58,426 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand 27 states. [2019-11-21 15:43:00,222 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2019-11-21 15:43:01,066 WARN L192 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 15:43:01,585 WARN L192 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 15:43:02,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:43:02,570 INFO L93 Difference]: Finished difference Result 102 states and 113 transitions. [2019-11-21 15:43:02,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-21 15:43:02,572 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 34 [2019-11-21 15:43:02,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:43:02,573 INFO L225 Difference]: With dead ends: 102 [2019-11-21 15:43:02,573 INFO L226 Difference]: Without dead ends: 102 [2019-11-21 15:43:02,574 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=302, Invalid=1420, Unknown=0, NotChecked=0, Total=1722 [2019-11-21 15:43:02,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-21 15:43:02,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2019-11-21 15:43:02,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-21 15:43:02,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2019-11-21 15:43:02,583 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 34 [2019-11-21 15:43:02,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:43:02,584 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2019-11-21 15:43:02,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-11-21 15:43:02,584 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2019-11-21 15:43:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-21 15:43:02,586 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:43:02,586 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:43:02,790 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:43:02,812 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:43:02,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:43:02,812 INFO L82 PathProgramCache]: Analyzing trace with hash 177113729, now seen corresponding path program 3 times [2019-11-21 15:43:02,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:43:02,814 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [509245235] [2019-11-21 15:43:02,814 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 15:43:03,430 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-21 15:43:03,431 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 15:43:03,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-21 15:43:03,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:43:03,851 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:43:03,851 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:43:06,002 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 15:43:06,002 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [509245235] [2019-11-21 15:43:06,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 15:43:06,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22] total 38 [2019-11-21 15:43:06,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229834141] [2019-11-21 15:43:06,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-11-21 15:43:06,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:43:06,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-11-21 15:43:06,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1146, Unknown=0, NotChecked=0, Total=1406 [2019-11-21 15:43:06,005 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand 38 states. [2019-11-21 15:43:07,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:43:07,672 INFO L93 Difference]: Finished difference Result 96 states and 101 transitions. [2019-11-21 15:43:07,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-21 15:43:07,674 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 46 [2019-11-21 15:43:07,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:43:07,675 INFO L225 Difference]: With dead ends: 96 [2019-11-21 15:43:07,675 INFO L226 Difference]: Without dead ends: 96 [2019-11-21 15:43:07,675 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=285, Invalid=1197, Unknown=0, NotChecked=0, Total=1482 [2019-11-21 15:43:07,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-11-21 15:43:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2019-11-21 15:43:07,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-11-21 15:43:07,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2019-11-21 15:43:07,680 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 46 [2019-11-21 15:43:07,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:43:07,681 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2019-11-21 15:43:07,681 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-11-21 15:43:07,681 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2019-11-21 15:43:07,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 15:43:07,683 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:43:07,683 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 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 15:43:07,892 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:43:07,893 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:43:07,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:43:07,894 INFO L82 PathProgramCache]: Analyzing trace with hash -805853520, now seen corresponding path program 2 times [2019-11-21 15:43:07,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:43:07,895 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1189429405] [2019-11-21 15:43:07,896 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:43:08,164 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 15:43:08,165 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 15:43:08,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 15:43:08,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:43:08,202 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 15:43:08,202 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:43:08,282 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 15:43:08,282 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1189429405] [2019-11-21 15:43:08,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:43:08,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-21 15:43:08,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537205192] [2019-11-21 15:43:08,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 15:43:08,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:43:08,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 15:43:08,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-21 15:43:08,283 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand 7 states. [2019-11-21 15:43:08,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:43:08,390 INFO L93 Difference]: Finished difference Result 127 states and 136 transitions. [2019-11-21 15:43:08,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 15:43:08,391 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-21 15:43:08,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:43:08,393 INFO L225 Difference]: With dead ends: 127 [2019-11-21 15:43:08,393 INFO L226 Difference]: Without dead ends: 124 [2019-11-21 15:43:08,393 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-21 15:43:08,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-11-21 15:43:08,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 97. [2019-11-21 15:43:08,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-21 15:43:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 102 transitions. [2019-11-21 15:43:08,399 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 102 transitions. Word has length 56 [2019-11-21 15:43:08,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:43:08,400 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 102 transitions. [2019-11-21 15:43:08,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 15:43:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 102 transitions. [2019-11-21 15:43:08,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 15:43:08,402 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:43:08,402 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:43:08,611 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:43:08,612 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:43:08,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:43:08,613 INFO L82 PathProgramCache]: Analyzing trace with hash -368546806, now seen corresponding path program 1 times [2019-11-21 15:43:08,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:43:08,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2034063555] [2019-11-21 15:43:08,615 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 15:43:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:43:09,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 15:43:09,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:43:09,119 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 15:43:09,120 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:43:09,122 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:43:09,122 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:43:09,123 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 15:43:09,222 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:43:09,222 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 17 treesize of output 39 [2019-11-21 15:43:09,223 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:43:09,244 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 15:43:09,245 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 15:43:09,246 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-21 15:43:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 15:43:09,276 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:43:13,629 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-21 15:43:13,629 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2034063555] [2019-11-21 15:43:13,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 15:43:13,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-21 15:43:13,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198555394] [2019-11-21 15:43:13,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 15:43:13,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:43:13,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 15:43:13,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=173, Unknown=1, NotChecked=0, Total=210 [2019-11-21 15:43:13,631 INFO L87 Difference]: Start difference. First operand 97 states and 102 transitions. Second operand 8 states. [2019-11-21 15:43:28,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:43:28,237 INFO L93 Difference]: Finished difference Result 151 states and 169 transitions. [2019-11-21 15:43:28,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 15:43:28,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-21 15:43:28,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:43:28,240 INFO L225 Difference]: With dead ends: 151 [2019-11-21 15:43:28,240 INFO L226 Difference]: Without dead ends: 151 [2019-11-21 15:43:28,240 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=83, Invalid=377, Unknown=2, NotChecked=0, Total=462 [2019-11-21 15:43:28,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-11-21 15:43:28,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 103. [2019-11-21 15:43:28,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-21 15:43:28,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 112 transitions. [2019-11-21 15:43:28,247 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 112 transitions. Word has length 56 [2019-11-21 15:43:28,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:43:28,247 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 112 transitions. [2019-11-21 15:43:28,247 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 15:43:28,248 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 112 transitions. [2019-11-21 15:43:28,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 15:43:28,249 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:43:28,249 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 15:43:28,453 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:43:28,454 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:43:28,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:43:28,455 INFO L82 PathProgramCache]: Analyzing trace with hash -368546805, now seen corresponding path program 1 times [2019-11-21 15:43:28,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:43:28,456 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1915270327] [2019-11-21 15:43:28,457 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 15:43:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:43:29,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-21 15:43:29,073 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:43:29,089 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 15:43:29,089 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:43:29,099 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:43:29,104 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 15:43:29,104 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 15:43:29,114 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:43:29,115 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:43:29,115 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 15:43:31,327 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 15:43:31,329 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 15:43:31,329 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:43:31,346 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:43:31,357 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:43:31,358 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 15:43:31,358 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 15:43:31,374 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:43:31,375 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:43:31,375 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2019-11-21 15:43:31,414 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 15:43:31,414 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:43:31,619 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 15:43:33,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:43:33,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 15:43:33,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:43:33,890 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:43:33,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 15:43:33,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:43:33,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:43:33,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:43:42,056 WARN L192 SmtUtils]: Spent 7.33 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 15:43:42,061 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 15:43:47,311 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_253|], 2=[|v_#length_214|]} [2019-11-21 15:43:47,322 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 15:43:47,322 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:43:47,333 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:43:47,335 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 15:43:47,335 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 15:43:47,345 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:43:47,345 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 15:43:47,346 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-21 15:43:47,996 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 15:43:48,008 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 15:43:48,009 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:43:48,030 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:43:48,033 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 15:43:48,034 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 15:43:48,054 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:43:48,055 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 15:43:48,055 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-21 15:43:48,234 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 15:43:48,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1915270327] [2019-11-21 15:43:48,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 15:43:48,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-21 15:43:48,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673240962] [2019-11-21 15:43:48,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-21 15:43:48,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:43:48,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-21 15:43:48,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=407, Unknown=2, NotChecked=0, Total=462 [2019-11-21 15:43:48,236 INFO L87 Difference]: Start difference. First operand 103 states and 112 transitions. Second operand 22 states. [2019-11-21 15:44:06,045 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 15:44:13,222 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-21 15:44:21,764 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-21 15:44:23,274 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-11-21 15:44:41,040 WARN L192 SmtUtils]: Spent 8.20 s on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2019-11-21 15:45:01,014 WARN L192 SmtUtils]: Spent 4.53 s on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-11-21 15:45:08,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:08,027 INFO L93 Difference]: Finished difference Result 260 states and 301 transitions. [2019-11-21 15:45:08,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-21 15:45:08,028 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-21 15:45:08,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:08,031 INFO L225 Difference]: With dead ends: 260 [2019-11-21 15:45:08,031 INFO L226 Difference]: Without dead ends: 260 [2019-11-21 15:45:08,032 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 45.9s TimeCoverageRelationStatistics Valid=201, Invalid=1278, Unknown=3, NotChecked=0, Total=1482 [2019-11-21 15:45:08,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2019-11-21 15:45:08,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 113. [2019-11-21 15:45:08,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-21 15:45:08,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 129 transitions. [2019-11-21 15:45:08,048 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 129 transitions. Word has length 56 [2019-11-21 15:45:08,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:08,048 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 129 transitions. [2019-11-21 15:45:08,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-21 15:45:08,049 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 129 transitions. [2019-11-21 15:45:08,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 15:45:08,050 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:08,050 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 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] [2019-11-21 15:45:08,253 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:08,253 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:08,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:08,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1986206825, now seen corresponding path program 1 times [2019-11-21 15:45:08,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:08,255 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2089186378] [2019-11-21 15:45:08,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:08,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 15:45:08,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:08,559 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 15:45:08,559 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:45:08,593 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 15:45:08,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2089186378] [2019-11-21 15:45:08,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:45:08,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 15:45:08,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184073086] [2019-11-21 15:45:08,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 15:45:08,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:45:08,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 15:45:08,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 15:45:08,596 INFO L87 Difference]: Start difference. First operand 113 states and 129 transitions. Second operand 5 states. [2019-11-21 15:45:08,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:08,669 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2019-11-21 15:45:08,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 15:45:08,669 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-21 15:45:08,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:08,671 INFO L225 Difference]: With dead ends: 133 [2019-11-21 15:45:08,671 INFO L226 Difference]: Without dead ends: 133 [2019-11-21 15:45:08,671 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 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 15:45:08,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-11-21 15:45:08,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 117. [2019-11-21 15:45:08,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-11-21 15:45:08,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 132 transitions. [2019-11-21 15:45:08,677 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 132 transitions. Word has length 58 [2019-11-21 15:45:08,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:08,677 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 132 transitions. [2019-11-21 15:45:08,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 15:45:08,678 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 132 transitions. [2019-11-21 15:45:08,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 15:45:08,679 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:08,679 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 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] [2019-11-21 15:45:08,882 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:08,882 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:08,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:08,884 INFO L82 PathProgramCache]: Analyzing trace with hash -243396490, now seen corresponding path program 1 times [2019-11-21 15:45:08,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:08,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1694747526] [2019-11-21 15:45:08,885 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 15:45:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:09,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 15:45:09,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:09,312 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 15:45:09,312 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:45:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 15:45:09,371 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1694747526] [2019-11-21 15:45:09,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 15:45:09,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 15:45:09,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752941177] [2019-11-21 15:45:09,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 15:45:09,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 15:45:09,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 15:45:09,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 15:45:09,372 INFO L87 Difference]: Start difference. First operand 117 states and 132 transitions. Second operand 6 states. [2019-11-21 15:45:09,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 15:45:09,510 INFO L93 Difference]: Finished difference Result 124 states and 139 transitions. [2019-11-21 15:45:09,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 15:45:09,512 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-21 15:45:09,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 15:45:09,514 INFO L225 Difference]: With dead ends: 124 [2019-11-21 15:45:09,514 INFO L226 Difference]: Without dead ends: 124 [2019-11-21 15:45:09,514 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 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 15:45:09,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-11-21 15:45:09,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 119. [2019-11-21 15:45:09,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-21 15:45:09,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 134 transitions. [2019-11-21 15:45:09,526 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 134 transitions. Word has length 58 [2019-11-21 15:45:09,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 15:45:09,526 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 134 transitions. [2019-11-21 15:45:09,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 15:45:09,526 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 134 transitions. [2019-11-21 15:45:09,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-21 15:45:09,528 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 15:45:09,528 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 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 15:45:09,729 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:09,729 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 15:45:09,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 15:45:09,729 INFO L82 PathProgramCache]: Analyzing trace with hash -666295029, now seen corresponding path program 1 times [2019-11-21 15:45:09,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 15:45:09,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1021324505] [2019-11-21 15:45:09,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 15:45:10,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 15:45:10,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 15:45:10,161 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 15:45:10,161 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 15:45:10,165 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 15:45:10,165 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 15:45:10,165 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 15:45:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 15:45:10,240 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 15:45:10,520 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 15:45:10,521 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 15:45:10,528 INFO L168 Benchmark]: Toolchain (without parser) took 151107.82 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 342.9 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -105.6 MB). Peak memory consumption was 237.3 MB. Max. memory is 11.5 GB. [2019-11-21 15:45:10,532 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 15:45:10,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -149.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-21 15:45:10,533 INFO L168 Benchmark]: Boogie Preprocessor took 106.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 15:45:10,533 INFO L168 Benchmark]: RCFGBuilder took 1662.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.5 MB in the end (delta: 111.8 MB). Peak memory consumption was 111.8 MB. Max. memory is 11.5 GB. [2019-11-21 15:45:10,534 INFO L168 Benchmark]: TraceAbstraction took 148565.32 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 200.3 MB). Free memory was 985.5 MB in the beginning and 1.1 GB in the end (delta: -80.4 MB). Peak memory consumption was 119.9 MB. Max. memory is 11.5 GB. [2019-11-21 15:45:10,541 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 768.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -149.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 106.94 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 1662.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.5 MB in the end (delta: 111.8 MB). Peak memory consumption was 111.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 148565.32 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 200.3 MB). Free memory was 985.5 MB in the beginning and 1.1 GB in the end (delta: -80.4 MB). Peak memory consumption was 119.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...