./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--tty--synclinkmp.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--synclinkmp.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX --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 2472cece0c5850e18a2b5f94d1cf0b687bb4a9cf075a19883fc5a2f42ed6c5a6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:33:25,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:33:25,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:33:25,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:33:25,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:33:25,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:33:25,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:33:25,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:33:25,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:33:25,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:33:25,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:33:25,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:33:25,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:33:25,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:33:25,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:33:25,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:33:25,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:33:25,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:33:25,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:33:25,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:33:25,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:33:25,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:33:25,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:33:25,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:33:25,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:33:25,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:33:25,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:33:25,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:33:25,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:33:25,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:33:25,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:33:25,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:33:25,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:33:25,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:33:25,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:33:25,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:33:25,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:33:25,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:33:25,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:33:25,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:33:25,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:33:25,969 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-09 08:33:26,021 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:33:26,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:33:26,024 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:33:26,024 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:33:26,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:33:26,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:33:26,027 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:33:26,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:33:26,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:33:26,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:33:26,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:33:26,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:33:26,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:33:26,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:33:26,031 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:33:26,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:33:26,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:33:26,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:33:26,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:33:26,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:33:26,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:33:26,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:33:26,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:33:26,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:33:26,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:33:26,035 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:33:26,035 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:33:26,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:33:26,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:33:26,038 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_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2472cece0c5850e18a2b5f94d1cf0b687bb4a9cf075a19883fc5a2f42ed6c5a6 [2021-11-09 08:33:26,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:33:26,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:33:26,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:33:26,495 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:33:26,496 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:33:26,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--synclinkmp.ko-entry_point.cil.out.i [2021-11-09 08:33:26,598 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX/data/c0d743cd9/b352bbd272bd4de98a4ac8e78b9c6d13/FLAG196ac35ef [2021-11-09 08:33:28,026 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:33:28,027 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--synclinkmp.ko-entry_point.cil.out.i [2021-11-09 08:33:28,095 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX/data/c0d743cd9/b352bbd272bd4de98a4ac8e78b9c6d13/FLAG196ac35ef [2021-11-09 08:33:28,137 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX/data/c0d743cd9/b352bbd272bd4de98a4ac8e78b9c6d13 [2021-11-09 08:33:28,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:33:28,143 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:33:28,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:33:28,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:33:28,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:33:28,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:33:28" (1/1) ... [2021-11-09 08:33:28,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61039f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:28, skipping insertion in model container [2021-11-09 08:33:28,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:33:28" (1/1) ... [2021-11-09 08:33:28,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:33:28,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:33:32,875 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_45b7656c-0929-4914-9b31-d72748793f2f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--synclinkmp.ko-entry_point.cil.out.i[431060,431073] [2021-11-09 08:33:32,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:33:33,011 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:33:34,092 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_45b7656c-0929-4914-9b31-d72748793f2f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--synclinkmp.ko-entry_point.cil.out.i[431060,431073] [2021-11-09 08:33:34,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:33:34,375 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:33:34,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:34 WrapperNode [2021-11-09 08:33:34,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:33:34,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:33:34,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:33:34,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:33:34,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:34" (1/1) ... [2021-11-09 08:33:34,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:34" (1/1) ... [2021-11-09 08:33:45,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:33:45,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:33:45,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:33:45,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:33:45,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:34" (1/1) ... [2021-11-09 08:33:45,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:34" (1/1) ... [2021-11-09 08:33:47,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:34" (1/1) ... [2021-11-09 08:33:47,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:34" (1/1) ... [2021-11-09 08:33:51,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:34" (1/1) ... [2021-11-09 08:33:52,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:34" (1/1) ... [2021-11-09 08:33:52,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:34" (1/1) ... [2021-11-09 08:33:54,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:33:54,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:33:54,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:33:54,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:33:54,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:34" (1/1) ... [2021-11-09 08:33:54,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:33:54,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:33:54,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:33:54,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b7656c-0929-4914-9b31-d72748793f2f/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:33:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-09 08:33:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-09 08:33:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:33:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-09 08:33:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-09 08:33:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 08:33:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 08:33:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 08:33:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-09 08:33:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:33:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:33:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-09 08:33:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-09 08:33:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:33:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 08:33:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 08:33:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:33:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:43:24,163 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:43:24,163 INFO L299 CfgBuilder]: Removed 20239 assume(true) statements. [2021-11-09 08:43:24,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:43:24 BoogieIcfgContainer [2021-11-09 08:43:24,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:43:24,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:43:24,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:43:24,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:43:24,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:33:28" (1/3) ... [2021-11-09 08:43:24,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1798ef70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:43:24, skipping insertion in model container [2021-11-09 08:43:24,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:34" (2/3) ... [2021-11-09 08:43:24,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1798ef70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:43:24, skipping insertion in model container [2021-11-09 08:43:24,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:43:24" (3/3) ... [2021-11-09 08:43:24,223 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--tty--synclinkmp.ko-entry_point.cil.out.i [2021-11-09 08:43:24,230 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:43:24,230 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-11-09 08:43:24,448 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:43:24,454 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 [2021-11-09 08:43:24,454 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-09 08:43:25,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 51574 states, 51558 states have (on average 1.5619884402032662) internal successors, (80533), 51573 states have internal predecessors, (80533), 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) [2021-11-09 08:43:25,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-09 08:43:25,513 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:43:25,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:43:25,515 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-09 08:43:25,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:25,528 INFO L85 PathProgramCache]: Analyzing trace with hash 667904686, now seen corresponding path program 1 times [2021-11-09 08:43:25,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:25,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209186034] [2021-11-09 08:43:25,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:25,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:26,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:26,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:26,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209186034] [2021-11-09 08:43:26,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209186034] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:26,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:26,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:43:26,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750718594] [2021-11-09 08:43:26,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 08:43:26,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:26,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 08:43:26,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:43:26,872 INFO L87 Difference]: Start difference. First operand has 51574 states, 51558 states have (on average 1.5619884402032662) internal successors, (80533), 51573 states have internal predecessors, (80533), 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) Second operand has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 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) [2021-11-09 08:43:28,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:43:28,861 INFO L93 Difference]: Finished difference Result 103144 states and 161061 transitions. [2021-11-09 08:43:28,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:43:28,862 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 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 109 [2021-11-09 08:43:28,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:43:29,139 INFO L225 Difference]: With dead ends: 103144 [2021-11-09 08:43:29,139 INFO L226 Difference]: Without dead ends: 51353 [2021-11-09 08:43:29,266 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 [2021-11-09 08:43:29,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51353 states. [2021-11-09 08:43:30,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51353 to 51353. [2021-11-09 08:43:30,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51353 states, 51338 states have (on average 1.5601308971911645) internal successors, (80094), 51352 states have internal predecessors, (80094), 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) [2021-11-09 08:43:31,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51353 states to 51353 states and 80094 transitions. [2021-11-09 08:43:31,126 INFO L78 Accepts]: Start accepts. Automaton has 51353 states and 80094 transitions. Word has length 109 [2021-11-09 08:43:31,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:43:31,128 INFO L470 AbstractCegarLoop]: Abstraction has 51353 states and 80094 transitions. [2021-11-09 08:43:31,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 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) [2021-11-09 08:43:31,128 INFO L276 IsEmpty]: Start isEmpty. Operand 51353 states and 80094 transitions. [2021-11-09 08:43:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-09 08:43:31,133 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:43:31,133 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:43:31,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:43:31,134 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-09 08:43:31,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:31,139 INFO L85 PathProgramCache]: Analyzing trace with hash 111881436, now seen corresponding path program 1 times [2021-11-09 08:43:31,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:31,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696112716] [2021-11-09 08:43:31,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:31,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:32,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:32,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:32,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696112716] [2021-11-09 08:43:32,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696112716] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:32,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:32,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:43:32,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369296050] [2021-11-09 08:43:32,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:43:32,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:32,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:43:32,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:43:32,384 INFO L87 Difference]: Start difference. First operand 51353 states and 80094 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2021-11-09 08:43:35,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:43:35,304 INFO L93 Difference]: Finished difference Result 144076 states and 224913 transitions. [2021-11-09 08:43:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:43:35,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 109 [2021-11-09 08:43:35,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:43:35,649 INFO L225 Difference]: With dead ends: 144076 [2021-11-09 08:43:35,649 INFO L226 Difference]: Without dead ends: 92818 [2021-11-09 08:43:35,791 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 [2021-11-09 08:43:36,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92818 states. [2021-11-09 08:43:38,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92818 to 92802. [2021-11-09 08:43:38,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92802 states, 92787 states have (on average 1.5618243935034002) internal successors, (144917), 92801 states have internal predecessors, (144917), 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)