./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91/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_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-24 23:58:20,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:58:20,523 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:58:20,532 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:58:20,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:58:20,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:58:20,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:58:20,574 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:58:20,575 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:58:20,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:58:20,581 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:58:20,581 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:58:20,581 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:58:20,583 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:58:20,584 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:58:20,584 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:58:20,584 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:58:20,585 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:58:20,585 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:58:20,586 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:58:20,586 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:58:20,587 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:58:20,588 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:58:20,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:58:20,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:58:20,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:58:20,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:58:20,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:58:20,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:58:20,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:58:20,592 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:58:20,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:58:20,592 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:58:20,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:58:20,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:20,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:58:20,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:58:20,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:58:20,594 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:58:20,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:58:20,594 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:58:20,595 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:58:20,595 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:58:20,595 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:58:20,595 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_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2023-11-24 23:58:20,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:58:20,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:58:20,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:58:20,887 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:58:20,888 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:58:20,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91/../../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 [2023-11-24 23:58:24,127 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:58:24,922 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:58:24,922 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566a6572-a1ec-4ffd-aa28-afeedc829cef/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 [2023-11-24 23:58:24,974 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91/data/c71e0bc6e/23bcc76f1c1d44589cdfe01f1d62de82/FLAG092549236 [2023-11-24 23:58:25,241 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91/data/c71e0bc6e/23bcc76f1c1d44589cdfe01f1d62de82 [2023-11-24 23:58:25,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:58:25,250 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:58:25,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:25,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:58:25,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:58:25,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:25" (1/1) ... [2023-11-24 23:58:25,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6956e0d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:25, skipping insertion in model container [2023-11-24 23:58:25,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:25" (1/1) ... [2023-11-24 23:58:25,553 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:58:28,000 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_566a6572-a1ec-4ffd-aa28-afeedc829cef/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] [2023-11-24 23:58:28,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:28,183 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:58:28,888 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_566a6572-a1ec-4ffd-aa28-afeedc829cef/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] [2023-11-24 23:58:28,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:29,102 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:58:29,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:29 WrapperNode [2023-11-24 23:58:29,103 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:29,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:29,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:58:29,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:58:29,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:29" (1/1) ... [2023-11-24 23:58:29,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:29" (1/1) ... [2023-11-24 23:58:29,855 INFO L138 Inliner]: procedures = 170, calls = 7298, calls flagged for inlining = 68, calls inlined = 55, statements flattened = 18616 [2023-11-24 23:58:29,859 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:29,860 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:58:29,860 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:58:29,860 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:58:29,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:29" (1/1) ... [2023-11-24 23:58:29,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:29" (1/1) ... [2023-11-24 23:58:30,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:29" (1/1) ... [2023-11-24 23:58:30,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:29" (1/1) ... [2023-11-24 23:58:30,490 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:29" (1/1) ... [2023-11-24 23:58:30,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:29" (1/1) ... [2023-11-24 23:58:30,609 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:29" (1/1) ... [2023-11-24 23:58:30,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:29" (1/1) ... [2023-11-24 23:58:30,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:58:30,732 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:58:30,732 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:58:30,732 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:58:30,733 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:29" (1/1) ... [2023-11-24 23:58:30,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:30,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:58:30,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:58:30,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566a6572-a1ec-4ffd-aa28-afeedc829cef/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:58:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2023-11-24 23:58:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2023-11-24 23:58:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2023-11-24 23:58:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2023-11-24 23:58:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:58:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-24 23:58:30,815 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-24 23:58:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2023-11-24 23:58:30,817 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2023-11-24 23:58:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2023-11-24 23:58:30,818 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2023-11-24 23:58:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:58:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:58:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2023-11-24 23:58:30,818 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2023-11-24 23:58:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:58:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2023-11-24 23:58:30,819 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2023-11-24 23:58:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2023-11-24 23:58:30,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2023-11-24 23:58:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2023-11-24 23:58:30,820 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2023-11-24 23:58:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2023-11-24 23:58:30,821 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2023-11-24 23:58:30,821 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 23:58:30,822 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 23:58:30,822 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2023-11-24 23:58:30,822 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2023-11-24 23:58:30,822 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2023-11-24 23:58:30,823 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2023-11-24 23:58:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:58:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-24 23:58:30,824 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-24 23:58:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2023-11-24 23:58:30,824 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2023-11-24 23:58:30,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-24 23:58:30,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-24 23:58:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2023-11-24 23:58:30,826 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2023-11-24 23:58:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2023-11-24 23:58:30,826 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2023-11-24 23:58:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2023-11-24 23:58:30,826 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2023-11-24 23:58:30,827 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2023-11-24 23:58:30,827 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2023-11-24 23:58:30,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:58:30,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:58:30,827 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2023-11-24 23:58:30,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2023-11-24 23:58:30,828 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2023-11-24 23:58:30,828 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2023-11-24 23:58:30,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2023-11-24 23:58:30,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2023-11-24 23:58:30,829 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-24 23:58:30,829 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-24 23:58:30,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-24 23:58:30,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-24 23:58:30,829 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2023-11-24 23:58:30,829 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2023-11-24 23:58:30,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:58:30,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:58:30,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:58:30,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2023-11-24 23:58:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2023-11-24 23:58:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2023-11-24 23:58:30,833 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2023-11-24 23:58:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2023-11-24 23:58:30,833 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2023-11-24 23:58:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2023-11-24 23:58:30,833 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2023-11-24 23:58:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:58:30,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:58:30,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:58:30,834 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2023-11-24 23:58:30,834 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2023-11-24 23:58:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2023-11-24 23:58:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2023-11-24 23:58:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2023-11-24 23:58:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2023-11-24 23:58:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2023-11-24 23:58:30,836 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2023-11-24 23:58:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2023-11-24 23:58:30,836 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2023-11-24 23:58:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:58:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:58:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2023-11-24 23:58:30,837 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2023-11-24 23:58:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:58:30,838 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:58:30,838 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2023-11-24 23:58:30,838 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2023-11-24 23:58:30,838 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2023-11-24 23:58:30,838 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2023-11-24 23:58:30,838 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2023-11-24 23:58:30,839 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2023-11-24 23:58:30,839 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-24 23:58:30,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-24 23:58:30,839 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2023-11-24 23:58:30,839 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2023-11-24 23:58:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2023-11-24 23:58:30,840 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2023-11-24 23:58:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:58:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-24 23:58:30,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-24 23:58:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2023-11-24 23:58:30,841 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2023-11-24 23:58:30,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:58:30,841 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2023-11-24 23:58:30,841 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2023-11-24 23:58:30,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:58:30,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:58:30,842 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2023-11-24 23:58:30,843 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2023-11-24 23:58:32,282 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:58:32,289 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:58:49,404 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:59:02,869 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:59:02,869 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:59:02,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:02 BoogieIcfgContainer [2023-11-24 23:59:02,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:59:02,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:59:02,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:59:02,881 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:59:02,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:58:25" (1/3) ... [2023-11-24 23:59:02,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202b13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:02, skipping insertion in model container [2023-11-24 23:59:02,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:29" (2/3) ... [2023-11-24 23:59:02,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202b13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:02, skipping insertion in model container [2023-11-24 23:59:02,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:02" (3/3) ... [2023-11-24 23:59:02,886 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 [2023-11-24 23:59:02,912 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:59:02,912 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:59:03,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:59:03,098 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;@4cbc1ede, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:59:03,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:59:03,125 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) [2023-11-24 23:59:03,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:59:03,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:03,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 23:59:03,137 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:03,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:03,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1175188005, now seen corresponding path program 1 times [2023-11-24 23:59:03,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:03,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754978383] [2023-11-24 23:59:03,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:03,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:04,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:04,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:04,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754978383] [2023-11-24 23:59:04,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754978383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:04,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:04,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:59:04,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388704049] [2023-11-24 23:59:04,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:04,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:59:04,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:04,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:59:04,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:59:04,582 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)