./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash db09076fa9a5c529090d66c116e7ec6dbccd2fd7809e50a63c87ed8084989776 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:30:56,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:30:56,905 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 18:30:56,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:30:56,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:30:56,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:30:56,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:30:56,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:30:56,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:30:56,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:30:56,938 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:30:56,938 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:30:56,939 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:30:56,939 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:30:56,940 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:30:56,940 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:30:56,941 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:30:56,941 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:30:56,942 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:30:56,942 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:30:56,943 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:30:56,944 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:30:56,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:30:56,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:30:56,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:30:56,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:30:56,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:30:56,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:30:56,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:30:56,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:30:56,948 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:30:56,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:30:56,949 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:30:56,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:30:56,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:30:56,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:30:56,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:30:56,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:30:56,951 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:30:56,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:30:56,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:30:56,951 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:30:56,951 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:30:56,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:30:56,952 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db09076fa9a5c529090d66c116e7ec6dbccd2fd7809e50a63c87ed8084989776 [2023-12-02 18:30:57,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:30:57,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:30:57,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:30:57,191 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:30:57,192 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:30:57,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i [2023-12-02 18:30:59,921 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:31:00,267 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:31:00,268 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i [2023-12-02 18:31:00,293 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh/data/c47d7e8e6/253e7366acfa418cab31daef401f83d3/FLAG17d354d6b [2023-12-02 18:31:00,312 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh/data/c47d7e8e6/253e7366acfa418cab31daef401f83d3 [2023-12-02 18:31:00,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:31:00,316 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:31:00,317 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:31:00,317 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:31:00,322 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:31:00,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:31:00" (1/1) ... [2023-12-02 18:31:00,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb8c321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:31:00, skipping insertion in model container [2023-12-02 18:31:00,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:31:00" (1/1) ... [2023-12-02 18:31:00,407 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:31:00,715 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1268] [2023-12-02 18:31:00,716 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1269-1270] [2023-12-02 18:31:00,784 WARN L240 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_14eac192-1b9c-4142-b687-e4bb3a122c3b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i[40937,40950] [2023-12-02 18:31:00,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:31:01,134 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:31:01,188 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1268] [2023-12-02 18:31:01,188 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1269-1270] [2023-12-02 18:31:01,198 WARN L240 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_14eac192-1b9c-4142-b687-e4bb3a122c3b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i[40937,40950] [2023-12-02 18:31:01,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:31:01,420 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:31:01,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:31:01 WrapperNode [2023-12-02 18:31:01,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:31:01,423 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:31:01,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:31:01,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:31:01,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:31:01" (1/1) ... [2023-12-02 18:31:01,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:31:01" (1/1) ... [2023-12-02 18:31:01,579 INFO L138 Inliner]: procedures = 93, calls = 964, calls flagged for inlining = 34, calls inlined = 31, statements flattened = 1560 [2023-12-02 18:31:01,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:31:01,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:31:01,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:31:01,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:31:01,590 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:31:01" (1/1) ... [2023-12-02 18:31:01,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:31:01" (1/1) ... [2023-12-02 18:31:01,603 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:31:01" (1/1) ... [2023-12-02 18:31:01,604 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:31:01" (1/1) ... [2023-12-02 18:31:01,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:31:01" (1/1) ... [2023-12-02 18:31:01,655 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:31:01" (1/1) ... [2023-12-02 18:31:01,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:31:01" (1/1) ... [2023-12-02 18:31:01,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:31:01" (1/1) ... [2023-12-02 18:31:01,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:31:01,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:31:01,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:31:01,693 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:31:01,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:31:01" (1/1) ... [2023-12-02 18:31:01,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:31:01,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:31:01,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:31:01,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14eac192-1b9c-4142-b687-e4bb3a122c3b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:31:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:31:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 18:31:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 18:31:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 18:31:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-12-02 18:31:01,767 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-12-02 18:31:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_device_unregister_n [2023-12-02 18:31:01,768 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_device_unregister_n [2023-12-02 18:31:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 18:31:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 18:31:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 18:31:01,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 18:31:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 18:31:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 18:31:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure ff_validate [2023-12-02 18:31:01,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_validate [2023-12-02 18:31:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 18:31:01,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 18:31:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure ff_irq_request [2023-12-02 18:31:01,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_irq_request [2023-12-02 18:31:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 18:31:01,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 18:31:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure device_unregister [2023-12-02 18:31:01,771 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unregister [2023-12-02 18:31:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure ff_reprogram [2023-12-02 18:31:01,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_reprogram [2023-12-02 18:31:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure ff_writel [2023-12-02 18:31:01,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_writel [2023-12-02 18:31:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 18:31:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 18:31:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 18:31:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure ff_readl [2023-12-02 18:31:01,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_readl [2023-12-02 18:31:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-12-02 18:31:01,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-12-02 18:31:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_device_register_n [2023-12-02 18:31:01,773 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_device_register_n [2023-12-02 18:31:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2023-12-02 18:31:01,773 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2023-12-02 18:31:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-12-02 18:31:01,774 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-12-02 18:31:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-12-02 18:31:01,774 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-12-02 18:31:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:31:01,774 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:31:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:31:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure ff_dev_create [2023-12-02 18:31:01,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_dev_create [2023-12-02 18:31:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 18:31:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 18:31:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-12-02 18:31:01,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-12-02 18:31:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:31:01,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:31:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-12-02 18:31:01,776 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-12-02 18:31:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-12-02 18:31:01,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-12-02 18:31:02,037 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:31:02,040 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:31:02,102 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 18:31:12,744 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:31:13,429 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:31:13,429 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 18:31:13,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:31:13 BoogieIcfgContainer [2023-12-02 18:31:13,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:31:13,434 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:31:13,434 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:31:13,437 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:31:13,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:31:00" (1/3) ... [2023-12-02 18:31:13,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ce8247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:31:13, skipping insertion in model container [2023-12-02 18:31:13,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:31:01" (2/3) ... [2023-12-02 18:31:13,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ce8247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:31:13, skipping insertion in model container [2023-12-02 18:31:13,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:31:13" (3/3) ... [2023-12-02 18:31:13,441 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i [2023-12-02 18:31:13,462 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:31:13,462 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:31:13,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:31:13,534 INFO L357 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1ca32927, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:31:13,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:31:13,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 236 states, 157 states have (on average 1.4394904458598725) internal successors, (226), 165 states have internal predecessors, (226), 57 states have call successors, (57), 21 states have call predecessors, (57), 20 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-02 18:31:13,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 18:31:13,555 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:31:13,556 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:31:13,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:31:13,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:31:13,563 INFO L85 PathProgramCache]: Analyzing trace with hash -114928683, now seen corresponding path program 1 times [2023-12-02 18:31:13,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:31:13,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866269259] [2023-12-02 18:31:13,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:31:13,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:39:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:39:52,138 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 18:39:52,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:39:52,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866269259] [2023-12-02 18:39:52,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866269259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:39:52,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:39:52,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:39:52,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832036339] [2023-12-02 18:39:52,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:39:52,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:39:52,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:39:52,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:39:52,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:39:52,180 INFO L87 Difference]: Start difference. First operand has 236 states, 157 states have (on average 1.4394904458598725) internal successors, (226), 165 states have internal predecessors, (226), 57 states have call successors, (57), 21 states have call predecessors, (57), 20 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 18:39:54,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 18:39:56,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 18:39:57,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:39:57,935 INFO L93 Difference]: Finished difference Result 466 states and 667 transitions. [2023-12-02 18:39:57,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:39:57,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 45 [2023-12-02 18:39:57,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:39:57,952 INFO L225 Difference]: With dead ends: 466 [2023-12-02 18:39:57,952 INFO L226 Difference]: Without dead ends: 231 [2023-12-02 18:39:57,957 INFO L412 NwaCegarLoop]: 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 [2023-12-02 18:39:57,960 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 5 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-02 18:39:57,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 575 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2023-12-02 18:39:57,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-12-02 18:39:58,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 225. [2023-12-02 18:39:58,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 154 states have (on average 1.396103896103896) internal successors, (215), 155 states have internal predecessors, (215), 51 states have call successors, (51), 20 states have call predecessors, (51), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-02 18:39:58,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 316 transitions. [2023-12-02 18:39:58,021 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 316 transitions. Word has length 45 [2023-12-02 18:39:58,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:39:58,022 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 316 transitions. [2023-12-02 18:39:58,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 18:39:58,023 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 316 transitions. [2023-12-02 18:39:58,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 18:39:58,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:39:58,027 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:39:58,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:39:58,028 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:39:58,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:39:58,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1804508348, now seen corresponding path program 1 times [2023-12-02 18:39:58,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:39:58,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824057222] [2023-12-02 18:39:58,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:39:58,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms