./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire --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 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:27:06,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:27:06,815 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:27:06,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:27:06,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:27:06,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:27:06,862 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:27:06,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:27:06,864 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:27:06,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:27:06,870 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:27:06,870 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:27:06,871 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:27:06,873 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:27:06,873 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:27:06,874 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:27:06,874 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:27:06,874 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:27:06,875 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:27:06,876 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:27:06,876 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:27:06,877 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:27:06,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:27:06,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:27:06,879 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:27:06,879 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:27:06,879 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:27:06,880 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:27:06,880 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:27:06,881 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:27:06,882 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:27:06,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:27:06,882 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:27:06,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:27:06,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:06,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:27:06,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:27:06,884 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:27:06,884 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:27:06,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:27:06,884 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:27:06,885 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:27:06,886 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:27:06,886 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:27:06,886 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_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2023-11-23 21:27:07,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:27:07,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:27:07,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:27:07,311 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:27:07,315 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:27:07,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-23 21:27:10,646 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:27:11,356 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:27:11,357 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb3e26f-4b68-4deb-b860-528ca2ba2360/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-23 21:27:11,431 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire/data/088a2db23/9dc4f115b9ac4312bfd2265031d430a4/FLAGda0a93414 [2023-11-23 21:27:11,452 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire/data/088a2db23/9dc4f115b9ac4312bfd2265031d430a4 [2023-11-23 21:27:11,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:27:11,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:27:11,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:11,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:27:11,471 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:27:11,472 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:11" (1/1) ... [2023-11-23 21:27:11,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7101d0a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:11, skipping insertion in model container [2023-11-23 21:27:11,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:11" (1/1) ... [2023-11-23 21:27:11,719 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:14,347 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_5eb3e26f-4b68-4deb-b860-528ca2ba2360/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[419026,419039] [2023-11-23 21:27:14,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:14,590 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:27:15,452 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_5eb3e26f-4b68-4deb-b860-528ca2ba2360/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[419026,419039] [2023-11-23 21:27:15,461 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:15,567 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:27:15,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:15 WrapperNode [2023-11-23 21:27:15,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:15,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:15,570 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:27:15,570 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:27:15,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:15" (1/1) ... [2023-11-23 21:27:15,804 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:15" (1/1) ... [2023-11-23 21:27:16,532 INFO L138 Inliner]: procedures = 170, calls = 7298, calls flagged for inlining = 68, calls inlined = 55, statements flattened = 18214 [2023-11-23 21:27:16,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:16,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:27:16,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:27:16,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:27:16,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:15" (1/1) ... [2023-11-23 21:27:16,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:15" (1/1) ... [2023-11-23 21:27:16,828 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:15" (1/1) ... [2023-11-23 21:27:16,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:15" (1/1) ... [2023-11-23 21:27:17,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:15" (1/1) ... [2023-11-23 21:27:17,238 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:15" (1/1) ... [2023-11-23 21:27:17,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:15" (1/1) ... [2023-11-23 21:27:17,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:15" (1/1) ... [2023-11-23 21:27:17,455 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:27:17,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:27:17,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:27:17,458 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:27:17,459 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:15" (1/1) ... [2023-11-23 21:27:17,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:17,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:17,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:27:17,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb3e26f-4b68-4deb-b860-528ca2ba2360/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:27:17,553 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2023-11-23 21:27:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2023-11-23 21:27:17,553 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2023-11-23 21:27:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2023-11-23 21:27:17,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:27:17,554 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 21:27:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 21:27:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2023-11-23 21:27:17,557 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2023-11-23 21:27:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2023-11-23 21:27:17,557 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2023-11-23 21:27:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:27:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:27:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2023-11-23 21:27:17,558 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2023-11-23 21:27:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:27:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2023-11-23 21:27:17,558 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2023-11-23 21:27:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2023-11-23 21:27:17,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2023-11-23 21:27:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2023-11-23 21:27:17,560 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2023-11-23 21:27:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2023-11-23 21:27:17,560 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2023-11-23 21:27:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:27:17,561 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:27:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2023-11-23 21:27:17,562 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2023-11-23 21:27:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2023-11-23 21:27:17,563 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2023-11-23 21:27:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:27:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:27:17,563 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:27:17,564 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2023-11-23 21:27:17,565 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2023-11-23 21:27:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:27:17,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:27:17,566 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2023-11-23 21:27:17,566 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2023-11-23 21:27:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2023-11-23 21:27:17,567 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2023-11-23 21:27:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2023-11-23 21:27:17,567 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2023-11-23 21:27:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2023-11-23 21:27:17,568 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2023-11-23 21:27:17,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:27:17,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:27:17,568 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2023-11-23 21:27:17,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2023-11-23 21:27:17,569 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2023-11-23 21:27:17,569 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2023-11-23 21:27:17,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2023-11-23 21:27:17,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2023-11-23 21:27:17,569 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 21:27:17,570 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 21:27:17,699 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 21:27:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 21:27:17,699 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2023-11-23 21:27:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2023-11-23 21:27:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:27:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:27:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:27:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2023-11-23 21:27:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2023-11-23 21:27:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2023-11-23 21:27:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2023-11-23 21:27:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2023-11-23 21:27:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2023-11-23 21:27:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2023-11-23 21:27:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2023-11-23 21:27:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:27:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:27:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:27:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2023-11-23 21:27:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2023-11-23 21:27:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2023-11-23 21:27:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2023-11-23 21:27:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2023-11-23 21:27:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2023-11-23 21:27:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2023-11-23 21:27:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2023-11-23 21:27:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2023-11-23 21:27:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2023-11-23 21:27:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:27:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:27:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2023-11-23 21:27:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2023-11-23 21:27:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:27:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:27:17,703 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2023-11-23 21:27:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2023-11-23 21:27:17,703 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2023-11-23 21:27:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2023-11-23 21:27:17,703 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2023-11-23 21:27:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2023-11-23 21:27:17,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:27:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:27:17,703 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2023-11-23 21:27:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2023-11-23 21:27:17,704 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2023-11-23 21:27:17,704 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2023-11-23 21:27:17,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:27:17,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-23 21:27:17,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-23 21:27:17,704 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2023-11-23 21:27:17,704 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2023-11-23 21:27:17,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:27:17,704 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2023-11-23 21:27:17,704 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2023-11-23 21:27:17,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:27:17,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:27:17,705 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2023-11-23 21:27:17,705 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2023-11-23 21:27:19,189 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:27:19,193 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:27:35,930 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:27:49,822 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:27:49,823 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:27:49,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:49 BoogieIcfgContainer [2023-11-23 21:27:49,829 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:27:49,834 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:27:49,834 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:27:49,838 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:27:49,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:27:11" (1/3) ... [2023-11-23 21:27:49,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffa1609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:49, skipping insertion in model container [2023-11-23 21:27:49,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:15" (2/3) ... [2023-11-23 21:27:49,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffa1609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:49, skipping insertion in model container [2023-11-23 21:27:49,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:49" (3/3) ... [2023-11-23 21:27:49,846 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-23 21:27:49,873 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:27:49,873 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:27:50,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:27:50,079 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;@6dd9e241, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:27:50,079 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:27:50,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 5158 states, 3523 states have (on average 1.4445075219982968) internal successors, (5089), 3535 states have internal predecessors, (5089), 1584 states have call successors, (1584), 49 states have call predecessors, (1584), 49 states have return successors, (1584), 1583 states have call predecessors, (1584), 1584 states have call successors, (1584) [2023-11-23 21:27:50,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:27:50,123 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:50,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:27:50,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:50,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:50,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1175188005, now seen corresponding path program 1 times [2023-11-23 21:27:50,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:50,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559671799] [2023-11-23 21:27:50,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:50,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:51,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:27:51,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:27:51,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559671799] [2023-11-23 21:27:51,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559671799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:51,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:51,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:27:51,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437377919] [2023-11-23 21:27:51,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:51,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:27:51,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:27:51,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:27:51,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:27:51,553 INFO L87 Difference]: Start difference. First operand has 5158 states, 3523 states have (on average 1.4445075219982968) internal successors, (5089), 3535 states have internal predecessors, (5089), 1584 states have call successors, (1584), 49 states have call predecessors, (1584), 49 states have return successors, (1584), 1583 states have call predecessors, (1584), 1584 states have call successors, (1584) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)