./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:46:52,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:46:52,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:46:52,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:46:52,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:46:52,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:46:52,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:46:52,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:46:52,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:46:52,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:46:52,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:46:52,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:46:52,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:46:52,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:46:52,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:46:52,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:46:52,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:46:52,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:46:52,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:46:52,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:46:52,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:46:52,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:46:52,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:46:52,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:46:52,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:46:52,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:46:52,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:46:53,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:46:53,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:46:53,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:46:53,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:46:53,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:46:53,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:46:53,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:46:53,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:46:53,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:46:53,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:46:53,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:46:53,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:46:53,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:46:53,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:46:53,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 07:46:53,061 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:46:53,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:46:53,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:46:53,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:46:53,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:46:53,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:46:53,068 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:46:53,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:46:53,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:46:53,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:46:53,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:46:53,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:46:53,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:46:53,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:46:53,071 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:46:53,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:46:53,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:46:53,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:46:53,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:46:53,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:46:53,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:46:53,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:46:53,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:46:53,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:46:53,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:46:53,074 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:46:53,075 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:46:53,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:46:53,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:46:53,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2021-11-07 07:46:53,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:46:53,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:46:53,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:46:53,432 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:46:53,433 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:46:53,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2021-11-07 07:46:53,515 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY/data/20d11bc67/3c8243c838294b3b8cdc05f8b3cf4741/FLAG3b79ad5e1 [2021-11-07 07:46:54,577 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:46:54,578 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2021-11-07 07:46:54,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY/data/20d11bc67/3c8243c838294b3b8cdc05f8b3cf4741/FLAG3b79ad5e1 [2021-11-07 07:46:54,902 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY/data/20d11bc67/3c8243c838294b3b8cdc05f8b3cf4741 [2021-11-07 07:46:54,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:46:54,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:46:54,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:46:54,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:46:54,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:46:54,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:46:54" (1/1) ... [2021-11-07 07:46:54,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@349a3fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:46:54, skipping insertion in model container [2021-11-07 07:46:54,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:46:54" (1/1) ... [2021-11-07 07:46:54,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:46:55,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:46:59,429 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2021-11-07 07:46:59,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:46:59,523 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:47:00,195 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2021-11-07 07:47:00,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:47:00,581 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:47:00,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:00 WrapperNode [2021-11-07 07:47:00,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:47:00,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:47:00,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:47:00,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:47:00,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:00" (1/1) ... [2021-11-07 07:47:00,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:00" (1/1) ... [2021-11-07 07:47:04,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:47:04,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:47:04,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:47:04,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:47:04,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:00" (1/1) ... [2021-11-07 07:47:04,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:00" (1/1) ... [2021-11-07 07:47:05,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:00" (1/1) ... [2021-11-07 07:47:05,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:00" (1/1) ... [2021-11-07 07:47:08,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:00" (1/1) ... [2021-11-07 07:47:08,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:00" (1/1) ... [2021-11-07 07:47:08,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:00" (1/1) ... [2021-11-07 07:47:08,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:47:08,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:47:08,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:47:08,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:47:08,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:00" (1/1) ... [2021-11-07 07:47:08,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:47:08,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:47:08,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:47:08,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab120846-dcd3-4ffe-b724-f2217eae135a/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:47:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 07:47:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:47:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure ath_hci_uart_work [2021-11-07 07:47:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_hci_uart_work [2021-11-07 07:47:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure btbcm_set_bdaddr [2021-11-07 07:47:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_setup [2021-11-07 07:47:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_setup [2021-11-07 07:47:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 07:47:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 07:47:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 07:47:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_close [2021-11-07 07:47:09,013 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_close [2021-11-07 07:47:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure btintel_set_bdaddr [2021-11-07 07:47:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 07:47:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 07:47:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 07:47:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 07:47:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_init_work [2021-11-07 07:47:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_init_work [2021-11-07 07:47:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 07:47:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 07:47:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure ath_wakeup_ar3k [2021-11-07 07:47:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_wakeup_ar3k [2021-11-07 07:47:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:47:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:47:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 07:47:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 07:47:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_send_frame [2021-11-07 07:47:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_send_frame [2021-11-07 07:47:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:47:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 07:47:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 07:47:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_flush [2021-11-07 07:47:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_flush [2021-11-07 07:47:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_close [2021-11-07 07:47:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_close [2021-11-07 07:47:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 07:47:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_open [2021-11-07 07:47:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_open [2021-11-07 07:47:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 07:47:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 07:47:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:49:34,495 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:49:34,495 INFO L299 CfgBuilder]: Removed 15904 assume(true) statements. [2021-11-07 07:49:34,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:49:34 BoogieIcfgContainer [2021-11-07 07:49:34,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:49:34,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:49:34,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:49:34,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:49:34,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:46:54" (1/3) ... [2021-11-07 07:49:34,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176c834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:49:34, skipping insertion in model container [2021-11-07 07:49:34,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:00" (2/3) ... [2021-11-07 07:49:34,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176c834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:49:34, skipping insertion in model container [2021-11-07 07:49:34,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:49:34" (3/3) ... [2021-11-07 07:49:34,520 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2021-11-07 07:49:34,525 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:49:34,526 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 147 error locations. [2021-11-07 07:49:34,639 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:49:34,644 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 07:49:34,644 INFO L340 AbstractCegarLoop]: Starting to check reachability of 147 error locations. [2021-11-07 07:49:34,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 16611 states, 16372 states have (on average 1.419191302223308) internal successors, (23235), 16522 states have internal predecessors, (23235), 79 states have call successors, (79), 12 states have call predecessors, (79), 12 states have return successors, (79), 77 states have call predecessors, (79), 79 states have call successors, (79) [2021-11-07 07:49:34,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 07:49:34,915 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:49:34,916 INFO L513 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] [2021-11-07 07:49:34,916 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [hci_uart_tty_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION (and 144 more)] === [2021-11-07 07:49:34,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:49:34,921 INFO L85 PathProgramCache]: Analyzing trace with hash 2059371291, now seen corresponding path program 1 times [2021-11-07 07:49:34,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:49:34,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268703565] [2021-11-07 07:49:34,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:49:34,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:49:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:49:36,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:49:36,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:49:36,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268703565] [2021-11-07 07:49:36,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268703565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:49:36,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:49:36,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:49:36,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847684738] [2021-11-07 07:49:36,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 07:49:36,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:49:36,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 07:49:36,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 07:49:36,160 INFO L87 Difference]: Start difference. First operand has 16611 states, 16372 states have (on average 1.419191302223308) internal successors, (23235), 16522 states have internal predecessors, (23235), 79 states have call successors, (79), 12 states have call predecessors, (79), 12 states have return successors, (79), 77 states have call predecessors, (79), 79 states have call successors, (79) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:49:37,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:49:37,103 INFO L93 Difference]: Finished difference Result 33216 states and 46859 transitions. [2021-11-07 07:49:37,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 07:49:37,105 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 07:49:37,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:49:37,242 INFO L225 Difference]: With dead ends: 33216 [2021-11-07 07:49:37,243 INFO L226 Difference]: Without dead ends: 16570 [2021-11-07 07:49:37,327 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 07:49:37,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16570 states. [2021-11-07 07:49:37,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16570 to 16570. [2021-11-07 07:49:37,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16570 states, 16332 states have (on average 1.3691525838843988) internal successors, (22361), 16481 states have internal predecessors, (22361), 79 states have call successors, (79), 12 states have call predecessors, (79), 12 states have return successors, (79), 77 states have call predecessors, (79), 79 states have call successors, (79) [2021-11-07 07:49:37,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16570 states to 16570 states and 22519 transitions. [2021-11-07 07:49:37,978 INFO L78 Accepts]: Start accepts. Automaton has 16570 states and 22519 transitions. Word has length 33 [2021-11-07 07:49:37,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:49:37,980 INFO L470 AbstractCegarLoop]: Abstraction has 16570 states and 22519 transitions. [2021-11-07 07:49:37,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:49:37,981 INFO L276 IsEmpty]: Start isEmpty. Operand 16570 states and 22519 transitions. [2021-11-07 07:49:37,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 07:49:37,989 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:49:37,990 INFO L513 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] [2021-11-07 07:49:37,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:49:37,993 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [hci_uart_tty_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION (and 144 more)] === [2021-11-07 07:49:37,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:49:37,996 INFO L85 PathProgramCache]: Analyzing trace with hash 284081303, now seen corresponding path program 1 times [2021-11-07 07:49:37,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:49:37,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522167217] [2021-11-07 07:49:37,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:49:38,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:49:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:49:39,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:49:39,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:49:39,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522167217] [2021-11-07 07:49:39,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522167217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:49:39,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:49:39,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:49:39,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223531098] [2021-11-07 07:49:39,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:49:39,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:49:39,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:49:39,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:49:39,053 INFO L87 Difference]: Start difference. First operand 16570 states and 22519 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:49:40,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:49:40,805 INFO L93 Difference]: Finished difference Result 49390 states and 67146 transitions. [2021-11-07 07:49:40,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:49:40,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 07:49:40,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:49:40,998 INFO L225 Difference]: With dead ends: 49390 [2021-11-07 07:49:41,005 INFO L226 Difference]: Without dead ends: 32826 [2021-11-07 07:49:41,053 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:49:41,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32826 states. [2021-11-07 07:49:42,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32826 to 32523. [2021-11-07 07:49:42,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32523 states, 32198 states have (on average 1.371669047766942) internal successors, (44165), 32350 states have internal predecessors, (44165), 154 states have call successors, (154), 24 states have call predecessors, (154), 24 states have return successors, (154), 150 states have call predecessors, (154), 154 states have call successors, (154) [2021-11-07 07:49:42,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32523 states to 32523 states and 44473 transitions. [2021-11-07 07:49:42,401 INFO L78 Accepts]: Start accepts. Automaton has 32523 states and 44473 transitions. Word has length 33 [2021-11-07 07:49:42,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:49:42,401 INFO L470 AbstractCegarLoop]: Abstraction has 32523 states and 44473 transitions. [2021-11-07 07:49:42,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:49:42,402 INFO L276 IsEmpty]: Start isEmpty. Operand 32523 states and 44473 transitions. [2021-11-07 07:49:42,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 07:49:42,406 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:49:42,407 INFO L513 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] [2021-11-07 07:49:42,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 07:49:42,407 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [hci_uart_tty_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION (and 144 more)] === [2021-11-07 07:49:42,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:49:42,408 INFO L85 PathProgramCache]: Analyzing trace with hash -481970160, now seen corresponding path program 1 times [2021-11-07 07:49:42,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:49:42,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082334589] [2021-11-07 07:49:42,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:49:42,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:49:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:49:43,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:49:43,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:49:43,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082334589] [2021-11-07 07:49:43,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082334589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:49:43,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:49:43,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:49:43,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823382358] [2021-11-07 07:49:43,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:49:43,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:49:43,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:49:43,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:49:43,101 INFO L87 Difference]: Start difference. First operand 32523 states and 44473 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:49:44,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:49:44,614 INFO L93 Difference]: Finished difference Result 32523 states and 44473 transitions. [2021-11-07 07:49:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:49:44,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 07:49:44,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:49:44,725 INFO L225 Difference]: With dead ends: 32523 [2021-11-07 07:49:44,726 INFO L226 Difference]: Without dead ends: 32291 [2021-11-07 07:49:44,747 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:49:44,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32291 states. [2021-11-07 07:49:45,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32291 to 32291. [2021-11-07 07:49:45,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32291 states, 32082 states have (on average 1.3658749454522785) internal successors, (43820), 32118 states have internal predecessors, (43820), 154 states have call successors, (154), 24 states have call predecessors, (154), 24 states have return successors, (154), 150 states have call predecessors, (154), 154 states have call successors, (154) [2021-11-07 07:49:45,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32291 states to 32291 states and 44128 transitions. [2021-11-07 07:49:45,922 INFO L78 Accepts]: Start accepts. Automaton has 32291 states and 44128 transitions. Word has length 33 [2021-11-07 07:49:45,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:49:45,923 INFO L470 AbstractCegarLoop]: Abstraction has 32291 states and 44128 transitions. [2021-11-07 07:49:45,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:49:45,923 INFO L276 IsEmpty]: Start isEmpty. Operand 32291 states and 44128 transitions. [2021-11-07 07:49:45,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 07:49:45,937 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:49:45,937 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:49:45,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 07:49:45,937 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [hci_uart_tty_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION (and 144 more)] === [2021-11-07 07:49:45,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:49:45,938 INFO L85 PathProgramCache]: Analyzing trace with hash -32864733, now seen corresponding path program 1 times [2021-11-07 07:49:45,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:49:45,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633514985] [2021-11-07 07:49:45,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:49:45,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:49:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:49:47,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:49:47,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:49:47,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633514985] [2021-11-07 07:49:47,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633514985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:49:47,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:49:47,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:49:47,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650752021] [2021-11-07 07:49:47,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:49:47,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:49:47,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:49:47,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:49:47,761 INFO L87 Difference]: Start difference. First operand 32291 states and 44128 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:50:00,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:50:00,644 INFO L93 Difference]: Finished difference Result 198935 states and 274095 transitions. [2021-11-07 07:50:00,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:50:00,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-07 07:50:00,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:50:01,441 INFO L225 Difference]: With dead ends: 198935 [2021-11-07 07:50:01,441 INFO L226 Difference]: Without dead ends: 166650 [2021-11-07 07:50:01,572 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:50:01,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166650 states. [2021-11-07 07:50:04,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166650 to 32363. [2021-11-07 07:50:04,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32363 states, 32154 states have (on average 1.3650556695900977) internal successors, (43892), 32190 states have internal predecessors, (43892), 154 states have call successors, (154), 24 states have call predecessors, (154), 24 states have return successors, (154), 150 states have call predecessors, (154), 154 states have call successors, (154) [2021-11-07 07:50:04,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32363 states to 32363 states and 44200 transitions. [2021-11-07 07:50:04,793 INFO L78 Accepts]: Start accepts. Automaton has 32363 states and 44200 transitions. Word has length 40 [2021-11-07 07:50:04,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:50:04,793 INFO L470 AbstractCegarLoop]: Abstraction has 32363 states and 44200 transitions. [2021-11-07 07:50:04,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:50:04,794 INFO L276 IsEmpty]: Start isEmpty. Operand 32363 states and 44200 transitions. [2021-11-07 07:50:04,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 07:50:04,811 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:50:04,812 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:50:04,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 07:50:04,812 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [hci_uart_tty_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION (and 144 more)] === [2021-11-07 07:50:04,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:04,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1897345237, now seen corresponding path program 1 times [2021-11-07 07:50:04,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:50:04,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372827865] [2021-11-07 07:50:04,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:04,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms