./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 902bca7b1502ca5dcb44bb7e7d9bc6d169c57d43 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 11:07:20,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:07:20,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:07:20,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:07:20,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:07:20,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:07:20,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:07:20,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:07:20,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:07:20,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:07:20,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:07:20,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:07:20,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:07:20,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:07:20,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:07:20,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:07:20,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:07:20,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:07:20,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:07:20,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:07:20,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:07:20,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:07:20,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:07:20,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:07:20,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:07:20,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:07:20,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:07:20,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:07:20,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:07:20,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:07:20,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:07:20,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:07:20,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:07:20,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:07:20,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:07:20,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:07:20,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:07:20,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:07:20,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:07:20,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:07:20,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:07:20,997 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 11:07:21,019 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:07:21,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:07:21,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:07:21,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:07:21,022 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:07:21,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:07:21,022 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:07:21,022 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 11:07:21,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:07:21,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:07:21,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:07:21,025 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 11:07:21,025 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 11:07:21,025 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 11:07:21,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:07:21,026 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 11:07:21,026 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 11:07:21,026 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:07:21,027 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:07:21,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:07:21,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:07:21,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:07:21,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:07:21,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:07:21,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:07:21,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:07:21,029 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 11:07:21,030 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 11:07:21,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 11:07:21,030 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 902bca7b1502ca5dcb44bb7e7d9bc6d169c57d43 [2019-11-20 11:07:21,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:07:21,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:07:21,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:07:21,367 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:07:21,368 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:07:21,369 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2019-11-20 11:07:21,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a20c1f55/70218aff13cf4980a56348a9d20ba31e/FLAG36ff9b86f [2019-11-20 11:07:22,001 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:07:22,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2019-11-20 11:07:22,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a20c1f55/70218aff13cf4980a56348a9d20ba31e/FLAG36ff9b86f [2019-11-20 11:07:22,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a20c1f55/70218aff13cf4980a56348a9d20ba31e [2019-11-20 11:07:22,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:07:22,318 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 11:07:22,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:07:22,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:07:22,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:07:22,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:07:22" (1/1) ... [2019-11-20 11:07:22,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74ea14b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:22, skipping insertion in model container [2019-11-20 11:07:22,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:07:22" (1/1) ... [2019-11-20 11:07:22,334 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:07:22,377 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:07:22,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:07:22,936 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:07:23,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:07:23,110 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:07:23,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:23 WrapperNode [2019-11-20 11:07:23,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:07:23,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:07:23,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:07:23,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:07:23,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:23" (1/1) ... [2019-11-20 11:07:23,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:23" (1/1) ... [2019-11-20 11:07:23,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:23" (1/1) ... [2019-11-20 11:07:23,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:23" (1/1) ... [2019-11-20 11:07:23,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:23" (1/1) ... [2019-11-20 11:07:23,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:23" (1/1) ... [2019-11-20 11:07:23,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:23" (1/1) ... [2019-11-20 11:07:23,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:07:23,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:07:23,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:07:23,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:07:23,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:23" (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 [2019-11-20 11:07:23,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 11:07:23,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:07:23,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 11:07:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 11:07:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 11:07:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 11:07:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 11:07:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 11:07:23,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 11:07:23,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 11:07:23,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 11:07:23,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 11:07:23,282 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 11:07:23,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 11:07:23,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 11:07:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 11:07:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 11:07:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 11:07:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 11:07:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 11:07:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 11:07:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 11:07:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 11:07:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 11:07:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 11:07:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 11:07:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 11:07:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 11:07:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 11:07:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 11:07:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 11:07:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 11:07:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 11:07:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 11:07:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 11:07:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 11:07:23,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 11:07:23,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 11:07:23,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 11:07:23,292 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 11:07:23,292 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 11:07:23,292 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-20 11:07:23,293 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-20 11:07:23,293 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 11:07:23,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 11:07:23,293 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 11:07:23,293 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 11:07:23,293 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 11:07:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 11:07:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 11:07:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 11:07:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 11:07:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 11:07:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 11:07:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 11:07:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 11:07:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 11:07:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 11:07:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 11:07:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 11:07:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 11:07:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 11:07:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 11:07:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 11:07:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 11:07:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 11:07:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 11:07:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 11:07:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 11:07:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 11:07:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 11:07:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 11:07:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 11:07:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 11:07:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 11:07:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 11:07:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 11:07:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 11:07:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 11:07:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 11:07:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 11:07:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 11:07:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 11:07:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 11:07:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 11:07:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 11:07:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 11:07:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 11:07:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 11:07:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 11:07:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 11:07:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 11:07:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 11:07:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 11:07:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 11:07:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 11:07:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 11:07:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 11:07:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 11:07:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 11:07:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 11:07:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 11:07:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 11:07:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 11:07:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 11:07:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 11:07:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 11:07:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 11:07:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 11:07:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 11:07:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 11:07:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 11:07:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 11:07:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 11:07:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 11:07:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 11:07:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 11:07:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 11:07:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 11:07:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 11:07:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 11:07:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 11:07:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 11:07:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 11:07:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 11:07:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 11:07:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 11:07:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 11:07:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 11:07:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 11:07:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 11:07:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 11:07:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 11:07:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 11:07:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 11:07:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 11:07:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 11:07:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 11:07:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 11:07:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 11:07:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 11:07:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 11:07:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 11:07:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 11:07:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 11:07:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 11:07:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 11:07:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 11:07:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 11:07:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 11:07:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 11:07:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 11:07:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 11:07:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 11:07:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 11:07:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 11:07:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 11:07:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 11:07:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 11:07:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 11:07:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 11:07:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 11:07:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 11:07:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 11:07:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 11:07:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 11:07:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 11:07:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 11:07:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 11:07:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 11:07:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 11:07:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 11:07:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 11:07:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 11:07:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 11:07:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 11:07:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 11:07:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 11:07:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 11:07:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 11:07:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 11:07:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 11:07:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 11:07:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 11:07:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 11:07:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 11:07:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 11:07:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 11:07:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 11:07:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 11:07:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 11:07:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 11:07:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 11:07:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 11:07:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 11:07:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 11:07:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 11:07:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 11:07:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 11:07:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 11:07:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 11:07:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 11:07:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 11:07:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-20 11:07:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-20 11:07:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-20 11:07:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 11:07:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 11:07:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 11:07:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 11:07:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 11:07:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:07:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 11:07:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 11:07:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 11:07:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 11:07:24,004 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 11:07:24,431 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 11:07:25,012 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:07:25,013 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 11:07:25,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:07:25 BoogieIcfgContainer [2019-11-20 11:07:25,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:07:25,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:07:25,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:07:25,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:07:25,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:07:22" (1/3) ... [2019-11-20 11:07:25,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114b920c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:07:25, skipping insertion in model container [2019-11-20 11:07:25,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:23" (2/3) ... [2019-11-20 11:07:25,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114b920c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:07:25, skipping insertion in model container [2019-11-20 11:07:25,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:07:25" (3/3) ... [2019-11-20 11:07:25,024 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_2-2.i [2019-11-20 11:07:25,034 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:07:25,043 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-20 11:07:25,055 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-20 11:07:25,076 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:07:25,076 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 11:07:25,077 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:07:25,077 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:07:25,077 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:07:25,077 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:07:25,078 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:07:25,078 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:07:25,100 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2019-11-20 11:07:25,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 11:07:25,110 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:25,111 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:25,113 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:25,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:25,120 INFO L82 PathProgramCache]: Analyzing trace with hash 597436025, now seen corresponding path program 1 times [2019-11-20 11:07:25,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:25,132 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [959740920] [2019-11-20 11:07:25,133 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 [2019-11-20 11:07:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:25,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 11:07:25,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:25,525 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 [2019-11-20 11:07:25,529 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:07:25,540 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:07:25,541 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:07:25,541 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 11:07:25,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:25,587 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:25,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:25,654 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [959740920] [2019-11-20 11:07:25,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:25,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 11:07:25,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822245230] [2019-11-20 11:07:25,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:07:25,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:25,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:07:25,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:07:25,681 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 5 states. [2019-11-20 11:07:25,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:25,995 INFO L93 Difference]: Finished difference Result 93 states and 105 transitions. [2019-11-20 11:07:25,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:07:25,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 11:07:25,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:26,010 INFO L225 Difference]: With dead ends: 93 [2019-11-20 11:07:26,011 INFO L226 Difference]: Without dead ends: 90 [2019-11-20 11:07:26,012 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:07:26,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-20 11:07:26,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2019-11-20 11:07:26,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-20 11:07:26,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2019-11-20 11:07:26,068 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 22 [2019-11-20 11:07:26,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:26,069 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2019-11-20 11:07:26,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:07:26,069 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2019-11-20 11:07:26,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 11:07:26,071 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:26,072 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:26,276 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:26,277 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:26,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:26,278 INFO L82 PathProgramCache]: Analyzing trace with hash 597436026, now seen corresponding path program 1 times [2019-11-20 11:07:26,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:26,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2085101027] [2019-11-20 11:07:26,279 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 [2019-11-20 11:07:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:26,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 11:07:26,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:26,692 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 [2019-11-20 11:07:26,692 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:07:26,700 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:07:26,700 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:07:26,701 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 11:07:26,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:26,897 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:27,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:07:28,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:28,279 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2085101027] [2019-11-20 11:07:28,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:28,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 17 [2019-11-20 11:07:28,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303425122] [2019-11-20 11:07:28,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-20 11:07:28,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:28,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-20 11:07:28,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-11-20 11:07:28,283 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand 18 states. [2019-11-20 11:07:30,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:30,011 INFO L93 Difference]: Finished difference Result 98 states and 113 transitions. [2019-11-20 11:07:30,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-20 11:07:30,012 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2019-11-20 11:07:30,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:30,014 INFO L225 Difference]: With dead ends: 98 [2019-11-20 11:07:30,014 INFO L226 Difference]: Without dead ends: 98 [2019-11-20 11:07:30,016 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2019-11-20 11:07:30,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-20 11:07:30,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 91. [2019-11-20 11:07:30,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-20 11:07:30,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2019-11-20 11:07:30,028 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 22 [2019-11-20 11:07:30,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:30,028 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2019-11-20 11:07:30,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-20 11:07:30,028 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2019-11-20 11:07:30,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 11:07:30,029 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:30,030 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:30,230 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:30,232 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:30,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:30,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1484939706, now seen corresponding path program 1 times [2019-11-20 11:07:30,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:30,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [200018500] [2019-11-20 11:07:30,234 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 [2019-11-20 11:07:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:30,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 11:07:30,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:30,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:30,517 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:30,568 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [200018500] [2019-11-20 11:07:30,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:30,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 11:07:30,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600484907] [2019-11-20 11:07:30,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:07:30,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:30,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:07:30,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:07:30,570 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand 5 states. [2019-11-20 11:07:30,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:30,624 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2019-11-20 11:07:30,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:07:30,625 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 11:07:30,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:30,627 INFO L225 Difference]: With dead ends: 90 [2019-11-20 11:07:30,627 INFO L226 Difference]: Without dead ends: 90 [2019-11-20 11:07:30,627 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:07:30,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-20 11:07:30,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-11-20 11:07:30,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-20 11:07:30,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2019-11-20 11:07:30,641 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 22 [2019-11-20 11:07:30,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:30,642 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2019-11-20 11:07:30,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:07:30,642 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2019-11-20 11:07:30,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 11:07:30,643 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:30,644 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:30,846 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:30,848 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:30,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:30,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1341474425, now seen corresponding path program 1 times [2019-11-20 11:07:30,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:30,850 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [731638979] [2019-11-20 11:07:30,850 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 [2019-11-20 11:07:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:31,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 11:07:31,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:31,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:31,103 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:31,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:31,194 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [731638979] [2019-11-20 11:07:31,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:31,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 11:07:31,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751929666] [2019-11-20 11:07:31,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:07:31,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:31,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:07:31,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:07:31,196 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand 5 states. [2019-11-20 11:07:31,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:31,255 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2019-11-20 11:07:31,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:07:31,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-20 11:07:31,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:31,258 INFO L225 Difference]: With dead ends: 90 [2019-11-20 11:07:31,258 INFO L226 Difference]: Without dead ends: 90 [2019-11-20 11:07:31,258 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:07:31,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-20 11:07:31,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-11-20 11:07:31,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-20 11:07:31,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2019-11-20 11:07:31,266 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 23 [2019-11-20 11:07:31,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:31,266 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2019-11-20 11:07:31,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:07:31,267 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2019-11-20 11:07:31,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 11:07:31,267 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:31,268 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:31,472 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:31,472 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:31,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:31,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1210682536, now seen corresponding path program 1 times [2019-11-20 11:07:31,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:31,473 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1154108899] [2019-11-20 11:07:31,473 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 [2019-11-20 11:07:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:31,700 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 11:07:31,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:31,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:31,710 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:31,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:31,781 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1154108899] [2019-11-20 11:07:31,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:31,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 11:07:31,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521546210] [2019-11-20 11:07:31,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:07:31,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:31,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:07:31,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:07:31,783 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand 3 states. [2019-11-20 11:07:31,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:31,912 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2019-11-20 11:07:31,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:07:31,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-20 11:07:31,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:31,915 INFO L225 Difference]: With dead ends: 126 [2019-11-20 11:07:31,916 INFO L226 Difference]: Without dead ends: 121 [2019-11-20 11:07:31,916 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:07:31,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-20 11:07:31,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 86. [2019-11-20 11:07:31,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-20 11:07:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2019-11-20 11:07:31,929 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 23 [2019-11-20 11:07:31,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:31,929 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2019-11-20 11:07:31,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:07:31,929 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2019-11-20 11:07:31,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 11:07:31,933 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:31,934 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:32,134 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:32,136 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:32,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:32,136 INFO L82 PathProgramCache]: Analyzing trace with hash -343863878, now seen corresponding path program 1 times [2019-11-20 11:07:32,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:32,138 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1004135193] [2019-11-20 11:07:32,138 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 [2019-11-20 11:07:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:32,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-20 11:07:32,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:32,505 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 [2019-11-20 11:07:32,506 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:07:32,514 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:07:32,514 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:07:32,515 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 11:07:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:32,912 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:34,615 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 11:07:35,362 WARN L191 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-11-20 11:07:35,940 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:35,940 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1004135193] [2019-11-20 11:07:35,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:07:35,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2019-11-20 11:07:35,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664507384] [2019-11-20 11:07:35,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-20 11:07:35,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:35,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-20 11:07:35,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2019-11-20 11:07:35,942 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand 25 states. [2019-11-20 11:07:37,922 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2019-11-20 11:07:38,298 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 29 [2019-11-20 11:07:38,745 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-20 11:07:39,039 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-11-20 11:07:40,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:40,731 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2019-11-20 11:07:40,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-20 11:07:40,733 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 28 [2019-11-20 11:07:40,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:40,734 INFO L225 Difference]: With dead ends: 101 [2019-11-20 11:07:40,734 INFO L226 Difference]: Without dead ends: 101 [2019-11-20 11:07:40,735 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=246, Invalid=944, Unknown=0, NotChecked=0, Total=1190 [2019-11-20 11:07:40,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-11-20 11:07:40,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2019-11-20 11:07:40,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-20 11:07:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2019-11-20 11:07:40,744 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 28 [2019-11-20 11:07:40,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:40,744 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2019-11-20 11:07:40,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-20 11:07:40,745 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2019-11-20 11:07:40,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 11:07:40,746 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:40,746 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:40,949 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:40,950 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:40,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:40,951 INFO L82 PathProgramCache]: Analyzing trace with hash 2025519899, now seen corresponding path program 1 times [2019-11-20 11:07:40,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:40,952 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [899055294] [2019-11-20 11:07:40,952 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 [2019-11-20 11:07:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:41,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 11:07:41,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:41,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:41,343 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:41,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:41,572 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [899055294] [2019-11-20 11:07:41,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:07:41,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 14 [2019-11-20 11:07:41,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477240813] [2019-11-20 11:07:41,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 11:07:41,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:41,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 11:07:41,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-20 11:07:41,574 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 14 states. [2019-11-20 11:07:41,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:41,999 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2019-11-20 11:07:42,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 11:07:42,000 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 35 [2019-11-20 11:07:42,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:42,003 INFO L225 Difference]: With dead ends: 140 [2019-11-20 11:07:42,004 INFO L226 Difference]: Without dead ends: 137 [2019-11-20 11:07:42,005 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2019-11-20 11:07:42,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-20 11:07:42,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2019-11-20 11:07:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-11-20 11:07:42,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2019-11-20 11:07:42,031 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 35 [2019-11-20 11:07:42,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:42,031 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2019-11-20 11:07:42,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 11:07:42,032 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2019-11-20 11:07:42,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 11:07:42,034 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:42,035 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:07:42,247 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:42,247 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:42,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:42,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1928439432, now seen corresponding path program 1 times [2019-11-20 11:07:42,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:42,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [492580813] [2019-11-20 11:07:42,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 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 [2019-11-20 11:07:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:42,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 11:07:42,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:42,567 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 [2019-11-20 11:07:42,567 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:07:42,569 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:07:42,569 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:07:42,570 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 11:07:42,713 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:07:42,714 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-20 11:07:42,716 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:07:42,736 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 11:07:42,737 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. [2019-11-20 11:07:42,738 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-20 11:07:42,765 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 11:07:42,765 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:45,117 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:07:45,117 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [492580813] [2019-11-20 11:07:45,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 11:07:45,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-20 11:07:45,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132510775] [2019-11-20 11:07:45,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 11:07:45,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:45,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 11:07:45,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=173, Unknown=1, NotChecked=0, Total=210 [2019-11-20 11:07:45,119 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 8 states. [2019-11-20 11:08:07,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:08:07,067 INFO L93 Difference]: Finished difference Result 157 states and 182 transitions. [2019-11-20 11:08:07,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 11:08:07,067 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-20 11:08:07,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:08:07,069 INFO L225 Difference]: With dead ends: 157 [2019-11-20 11:08:07,069 INFO L226 Difference]: Without dead ends: 157 [2019-11-20 11:08:07,070 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=83, Invalid=377, Unknown=2, NotChecked=0, Total=462 [2019-11-20 11:08:07,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-20 11:08:07,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 105. [2019-11-20 11:08:07,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-20 11:08:07,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2019-11-20 11:08:07,078 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 35 [2019-11-20 11:08:07,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:08:07,079 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2019-11-20 11:08:07,079 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 11:08:07,079 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2019-11-20 11:08:07,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 11:08:07,081 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:08:07,081 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:08:07,290 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:08:07,292 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:08:07,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:08:07,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1928439431, now seen corresponding path program 1 times [2019-11-20 11:08:07,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:08:07,294 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [247854661] [2019-11-20 11:08:07,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:08:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:07,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 35 conjunts are in the unsatisfiable core [2019-11-20 11:08:07,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:08:07,672 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 [2019-11-20 11:08:07,672 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:08:07,681 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:08:07,685 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 [2019-11-20 11:08:07,685 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 11:08:07,693 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:08:07,694 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:08:07,694 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 11:08:10,125 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:08:10,126 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 [2019-11-20 11:08:10,126 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:08:10,153 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:08:10,160 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 [2019-11-20 11:08:10,161 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 11:08:10,185 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:08:10,187 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 11:08:10,187 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:37, output treesize:21 [2019-11-20 11:08:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:10,248 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:08:10,494 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 11:08:12,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:08:12,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:08:12,775 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 11:08:12,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 11:08:12,778 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:08:12,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 11:08:12,780 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 11:08:19,319 WARN L191 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-20 11:08:19,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:08:30,101 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2019-11-20 11:08:30,790 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_231|], 2=[|v_#length_186|]} [2019-11-20 11:08:30,794 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 11:08:30,795 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:08:30,796 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:08:30,796 INFO L464 ElimStorePlain]: Eliminatee |v_#length_186| vanished before elimination [2019-11-20 11:08:30,796 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:08:30,796 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:30, output treesize:1 [2019-11-20 11:08:30,799 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 11:08:31,496 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-20 11:08:31,509 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 [2019-11-20 11:08:31,510 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:08:31,529 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:08:31,532 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 11:08:31,533 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 11:08:31,550 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:08:31,551 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. [2019-11-20 11:08:31,551 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:34, output treesize:17 [2019-11-20 11:08:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:31,764 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [247854661] [2019-11-20 11:08:31,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:08:31,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 29 [2019-11-20 11:08:31,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359246254] [2019-11-20 11:08:31,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-20 11:08:31,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:08:31,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-20 11:08:31,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=774, Unknown=5, NotChecked=0, Total=870 [2019-11-20 11:08:31,766 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 30 states. [2019-11-20 11:08:37,995 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|)))) is different from false [2019-11-20 11:09:13,306 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (= c_ldv_malloc_~size |c_ldv_malloc_#in~size|) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (= (_ bv0 32) |c_ldv_malloc_#res.offset|) (= (bvadd (select |c_#valid| |c_ldv_malloc_#res.base|) (_ bv1 1)) (_ bv0 1)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|) (forall ((|v_ldv_malloc_#t~malloc12.base_35| (_ BitVec 32)) (v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32)) (ldv_malloc_~size (_ BitVec 32))) (let ((.cse5 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse3 (bvadd .cse5 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse4 (bvadd .cse5 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse3)) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_35|) (_ bv0 1))) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse3 .cse4)) (bvsle .cse4 (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_35| ldv_malloc_~size) v_alloc_17_~array.base_BEFORE_CALL_4))))))) is different from false [2019-11-20 11:09:51,976 WARN L191 SmtUtils]: Spent 16.26 s on a formula simplification. DAG size of input: 54 DAG size of output: 25 [2019-11-20 11:10:05,410 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (= (_ bv1 1) (select |c_#valid| c_entry_point_~array~0.base)) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (= c_entry_point_~i~2 (_ bv0 32)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (bvmul (_ bv4 32) c_entry_point_~len~0) (select |c_#length| c_entry_point_~array~0.base)) (bvsgt c_entry_point_~len~0 (_ bv0 32)) (= (_ bv0 32) c_entry_point_~array~0.offset)) is different from false [2019-11-20 11:10:10,948 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2019-11-20 11:10:14,329 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-11-20 11:10:21,764 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-11-20 11:10:54,232 WARN L191 SmtUtils]: Spent 22.41 s on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-11-20 11:11:30,193 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse8 (bvmul c_alloc_17_~i~0 (_ bv4 32)))) (let ((.cse2 (bvadd .cse8 c_alloc_17_~array.offset (_ bv4 32))) (.cse7 (bvadd .cse8 c_alloc_17_~array.offset))) (let ((.cse0 (bvsle (_ bv0 32) .cse7)) (.cse6 (bvsle .cse7 .cse2)) (.cse1 (forall ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_34|) (_ bv0 1)))))) (and (or .cse0 .cse1) (forall ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32)) (v_ldv_malloc_~size_42 (_ BitVec 32))) (or (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_34|) (_ bv0 1))) (bvsle (bvadd (bvmul c_alloc_17_~i~0 (_ bv4 32)) c_alloc_17_~array.offset (_ bv4 32)) (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_34| v_ldv_malloc_~size_42) c_alloc_17_~array.base)))) (bvsle .cse2 (select |c_#length| c_alloc_17_~array.base)) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse5 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse3 (bvadd .cse5 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse4 (bvadd .cse5 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse3)) (bvsle .cse4 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse3 .cse4)))))) .cse0 .cse6 (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (or .cse6 .cse1))))) is different from false [2019-11-20 11:11:50,975 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 34 [2019-11-20 11:12:03,678 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-20 11:13:01,388 WARN L191 SmtUtils]: Spent 18.22 s on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2019-11-20 11:13:51,956 WARN L191 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-11-20 11:13:57,903 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-20 11:15:16,868 WARN L191 SmtUtils]: Spent 44.09 s on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-11-20 11:15:31,573 WARN L191 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 73 DAG size of output: 45 [2019-11-20 11:15:43,617 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-20 11:16:09,138 WARN L191 SmtUtils]: Spent 10.32 s on a formula simplification. DAG size of input: 71 DAG size of output: 33 [2019-11-20 11:16:11,825 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-11-20 11:16:32,503 WARN L191 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 62 DAG size of output: 34 [2019-11-20 11:16:35,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:16:35,521 INFO L93 Difference]: Finished difference Result 285 states and 334 transitions. [2019-11-20 11:16:35,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-11-20 11:16:35,522 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 35 [2019-11-20 11:16:35,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:16:35,526 INFO L225 Difference]: With dead ends: 285 [2019-11-20 11:16:35,526 INFO L226 Difference]: Without dead ends: 285 [2019-11-20 11:16:35,528 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 39 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 307.0s TimeCoverageRelationStatistics Valid=374, Invalid=3003, Unknown=61, NotChecked=468, Total=3906 [2019-11-20 11:16:35,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2019-11-20 11:16:35,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 168. [2019-11-20 11:16:35,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-11-20 11:16:35,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 221 transitions. [2019-11-20 11:16:35,538 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 221 transitions. Word has length 35 [2019-11-20 11:16:35,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:16:35,538 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 221 transitions. [2019-11-20 11:16:35,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-11-20 11:16:35,539 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 221 transitions. [2019-11-20 11:16:35,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-20 11:16:35,540 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:16:35,540 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:16:35,743 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:16:35,744 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:16:35,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:16:35,745 INFO L82 PathProgramCache]: Analyzing trace with hash -2099434107, now seen corresponding path program 1 times [2019-11-20 11:16:35,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:16:35,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1771974148] [2019-11-20 11:16:35,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:16:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:16:35,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 11:16:35,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:16:35,998 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 11:16:35,998 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:16:36,033 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 11:16:36,034 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1771974148] [2019-11-20 11:16:36,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:16:36,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 11:16:36,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395589237] [2019-11-20 11:16:36,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:16:36,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:16:36,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:16:36,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:16:36,035 INFO L87 Difference]: Start difference. First operand 168 states and 221 transitions. Second operand 5 states. [2019-11-20 11:16:36,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:16:36,118 INFO L93 Difference]: Finished difference Result 175 states and 228 transitions. [2019-11-20 11:16:36,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:16:36,119 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-11-20 11:16:36,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:16:36,121 INFO L225 Difference]: With dead ends: 175 [2019-11-20 11:16:36,121 INFO L226 Difference]: Without dead ends: 175 [2019-11-20 11:16:36,122 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:16:36,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-11-20 11:16:36,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 164. [2019-11-20 11:16:36,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-11-20 11:16:36,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 214 transitions. [2019-11-20 11:16:36,133 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 214 transitions. Word has length 37 [2019-11-20 11:16:36,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:16:36,133 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 214 transitions. [2019-11-20 11:16:36,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:16:36,133 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 214 transitions. [2019-11-20 11:16:36,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-20 11:16:36,135 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:16:36,135 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:16:36,338 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:16:36,339 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:16:36,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:16:36,340 INFO L82 PathProgramCache]: Analyzing trace with hash -356623772, now seen corresponding path program 1 times [2019-11-20 11:16:36,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:16:36,341 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2030418515] [2019-11-20 11:16:36,342 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 [2019-11-20 11:16:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:16:36,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:16:36,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:16:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-20 11:16:36,641 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:16:36,671 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-20 11:16:36,671 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2030418515] [2019-11-20 11:16:36,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:16:36,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 11:16:36,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054022006] [2019-11-20 11:16:36,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 11:16:36,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:16:36,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 11:16:36,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:16:36,673 INFO L87 Difference]: Start difference. First operand 164 states and 214 transitions. Second operand 6 states. [2019-11-20 11:16:36,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:16:36,785 INFO L93 Difference]: Finished difference Result 170 states and 211 transitions. [2019-11-20 11:16:36,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:16:36,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-11-20 11:16:36,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:16:36,787 INFO L225 Difference]: With dead ends: 170 [2019-11-20 11:16:36,787 INFO L226 Difference]: Without dead ends: 170 [2019-11-20 11:16:36,788 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:16:36,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2019-11-20 11:16:36,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 154. [2019-11-20 11:16:36,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-20 11:16:36,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 195 transitions. [2019-11-20 11:16:36,795 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 195 transitions. Word has length 37 [2019-11-20 11:16:36,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:16:36,795 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 195 transitions. [2019-11-20 11:16:36,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 11:16:36,795 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 195 transitions. [2019-11-20 11:16:36,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-20 11:16:36,797 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:16:36,797 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:16:37,005 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:16:37,006 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:16:37,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:16:37,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1765265242, now seen corresponding path program 1 times [2019-11-20 11:16:37,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:16:37,008 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2131810479] [2019-11-20 11:16:37,008 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 [2019-11-20 11:16:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:16:37,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 11:16:37,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:16:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-20 11:16:37,341 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:16:37,381 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-20 11:16:37,382 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2131810479] [2019-11-20 11:16:37,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:16:37,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 11:16:37,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898343227] [2019-11-20 11:16:37,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:16:37,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:16:37,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:16:37,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:16:37,383 INFO L87 Difference]: Start difference. First operand 154 states and 195 transitions. Second operand 5 states. [2019-11-20 11:16:37,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:16:37,414 INFO L93 Difference]: Finished difference Result 134 states and 157 transitions. [2019-11-20 11:16:37,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:16:37,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2019-11-20 11:16:37,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:16:37,417 INFO L225 Difference]: With dead ends: 134 [2019-11-20 11:16:37,417 INFO L226 Difference]: Without dead ends: 134 [2019-11-20 11:16:37,417 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:16:37,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-11-20 11:16:37,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2019-11-20 11:16:37,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-20 11:16:37,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2019-11-20 11:16:37,423 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 38 [2019-11-20 11:16:37,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:16:37,424 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2019-11-20 11:16:37,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:16:37,424 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2019-11-20 11:16:37,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-20 11:16:37,426 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:16:37,426 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:16:37,637 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:16:37,638 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:16:37,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:16:37,639 INFO L82 PathProgramCache]: Analyzing trace with hash 519015482, now seen corresponding path program 2 times [2019-11-20 11:16:37,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:16:37,640 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [45932684] [2019-11-20 11:16:37,640 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:16:37,985 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 11:16:37,986 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 11:16:37,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-20 11:16:37,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:16:38,017 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 [2019-11-20 11:16:38,018 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:16:38,023 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:16:38,023 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:16:38,023 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 11:16:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:16:38,833 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:16:40,496 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2019-11-20 11:16:41,121 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-20 11:16:41,593 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-20 11:16:42,086 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-20 11:16:42,611 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-20 11:16:43,640 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 11:16:44,596 WARN L191 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-11-20 11:16:45,397 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:16:45,398 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [45932684] [2019-11-20 11:16:45,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:16:45,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 33 [2019-11-20 11:16:45,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504537326] [2019-11-20 11:16:45,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-20 11:16:45,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:16:45,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-20 11:16:45,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=920, Unknown=0, NotChecked=0, Total=1122 [2019-11-20 11:16:45,401 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 34 states. [2019-11-20 11:16:46,712 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-20 11:16:47,416 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-20 11:16:48,194 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-20 11:16:48,877 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-20 11:16:49,507 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2019-11-20 11:16:50,155 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-11-20 11:16:52,564 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2019-11-20 11:16:54,282 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 98 DAG size of output: 29 [2019-11-20 11:16:56,402 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2019-11-20 11:16:58,479 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 84 DAG size of output: 29 [2019-11-20 11:17:00,560 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2019-11-20 11:17:02,578 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 28 [2019-11-20 11:17:04,678 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2019-11-20 11:17:06,239 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 29 [2019-11-20 11:17:08,194 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2019-11-20 11:17:09,402 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 29 [2019-11-20 11:17:10,284 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-20 11:17:12,018 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2019-11-20 11:17:12,717 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-11-20 11:17:14,537 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2019-11-20 11:17:17,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:17:17,507 INFO L93 Difference]: Finished difference Result 166 states and 216 transitions. [2019-11-20 11:17:17,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-20 11:17:17,510 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 40 [2019-11-20 11:17:17,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:17:17,512 INFO L225 Difference]: With dead ends: 166 [2019-11-20 11:17:17,512 INFO L226 Difference]: Without dead ends: 166 [2019-11-20 11:17:17,513 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 31.7s TimeCoverageRelationStatistics Valid=878, Invalid=2782, Unknown=0, NotChecked=0, Total=3660 [2019-11-20 11:17:17,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-11-20 11:17:17,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 156. [2019-11-20 11:17:17,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-20 11:17:17,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 186 transitions. [2019-11-20 11:17:17,522 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 186 transitions. Word has length 40 [2019-11-20 11:17:17,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:17:17,522 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 186 transitions. [2019-11-20 11:17:17,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-20 11:17:17,523 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 186 transitions. [2019-11-20 11:17:17,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-20 11:17:17,524 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:17:17,524 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:17:17,725 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:17:17,726 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:17:17,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:17:17,727 INFO L82 PathProgramCache]: Analyzing trace with hash -725997882, now seen corresponding path program 1 times [2019-11-20 11:17:17,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:17:17,727 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1116065471] [2019-11-20 11:17:17,728 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 [2019-11-20 11:17:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:17:18,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 11:17:18,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:17:18,033 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 [2019-11-20 11:17:18,034 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:17:18,036 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:17:18,036 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:17:18,036 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 11:17:18,094 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 11:17:18,095 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:17:18,364 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:17:18,366 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 11:17:18,372 INFO L168 Benchmark]: Toolchain (without parser) took 596053.39 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 251.7 MB). Free memory was 956.3 MB in the beginning and 1.2 GB in the end (delta: -209.0 MB). Peak memory consumption was 42.6 MB. Max. memory is 11.5 GB. [2019-11-20 11:17:18,372 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:17:18,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-11-20 11:17:18,373 INFO L168 Benchmark]: Boogie Preprocessor took 110.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:17:18,374 INFO L168 Benchmark]: RCFGBuilder took 1792.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.8 MB in the end (delta: 118.6 MB). Peak memory consumption was 118.6 MB. Max. memory is 11.5 GB. [2019-11-20 11:17:18,374 INFO L168 Benchmark]: TraceAbstraction took 593353.57 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 114.8 MB). Free memory was 972.8 MB in the beginning and 1.2 GB in the end (delta: -192.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:17:18,376 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 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 792.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 110.98 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1792.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.8 MB in the end (delta: 118.6 MB). Peak memory consumption was 118.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 593353.57 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 114.8 MB). Free memory was 972.8 MB in the beginning and 1.2 GB in the end (delta: -192.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request... Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:14:22,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:14:22,980 INFO L82 PathProgramCache]: Analyzing trace with hash -725997882, now seen corresponding path program 1 times [2019-11-20 11:14:22,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:14:22,981 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [395179858] [2019-11-20 11:14:22,981 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 [2019-11-20 11:14:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:14:23,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 11:14:23,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:14:23,283 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 [2019-11-20 11:14:23,283 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:14:23,284 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:14:23,285 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:14:23,285 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 11:14:23,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 11:14:23,333 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:14:23,618 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:14:23,619 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) [2019-11-20 11:14:23,625 INFO L168 Benchmark]: Toolchain (without parser) took 668844.77 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 237.0 MB). Free memory was 945.6 MB in the beginning and 924.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 257.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:14:23,626 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:14:23,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-20 11:14:23,630 INFO L168 Benchmark]: Boogie Preprocessor took 158.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:14:23,630 INFO L168 Benchmark]: RCFGBuilder took 1897.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.0 MB in the end (delta: 119.9 MB). Peak memory consumption was 119.9 MB. Max. memory is 11.5 GB. [2019-11-20 11:14:23,631 INFO L168 Benchmark]: TraceAbstraction took 666034.49 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 97.0 MB). Free memory was 976.0 MB in the beginning and 924.9 MB in the end (delta: 51.1 MB). Peak memory consumption was 148.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:14:23,633 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 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 749.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 158.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1897.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.0 MB in the end (delta: 119.9 MB). Peak memory consumption was 119.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 666034.49 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 97.0 MB). Free memory was 976.0 MB in the beginning and 924.9 MB in the end (delta: 51.1 MB). Peak memory consumption was 148.1 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...