./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 cf1a7837 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_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX/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_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX --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-cf1a783 [2023-11-12 00:52:25,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:52:25,117 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:52:25,124 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:52:25,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:52:25,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:52:25,163 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:52:25,164 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:52:25,164 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:52:25,165 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:52:25,165 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:52:25,166 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:52:25,167 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:52:25,167 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:52:25,168 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:52:25,168 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:52:25,169 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:52:25,169 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:52:25,170 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:52:25,170 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:52:25,171 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:52:25,173 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:52:25,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:52:25,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:52:25,175 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:52:25,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:52:25,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:52:25,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:52:25,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:52:25,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:52:25,177 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:52:25,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:52:25,178 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:52:25,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:25,178 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:52:25,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:52:25,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:52:25,179 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:52:25,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:52:25,179 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:52:25,179 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:52:25,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:52:25,182 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_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2023-11-12 00:52:25,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:52:25,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:52:25,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:52:25,425 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:52:25,426 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:52:25,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX/../../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 [2023-11-12 00:52:28,606 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:52:29,264 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:52:29,266 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/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 [2023-11-12 00:52:29,325 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX/data/d690d62f9/3e1537c043ad4090a402ae20a2551c6a/FLAG6a1f1a959 [2023-11-12 00:52:29,342 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX/data/d690d62f9/3e1537c043ad4090a402ae20a2551c6a [2023-11-12 00:52:29,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:52:29,350 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:52:29,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:29,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:52:29,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:52:29,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:29" (1/1) ... [2023-11-12 00:52:29,359 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7aeef0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:29, skipping insertion in model container [2023-11-12 00:52:29,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:29" (1/1) ... [2023-11-12 00:52:29,589 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:31,684 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_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/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] [2023-11-12 00:52:31,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:31,884 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:52:32,638 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_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/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] [2023-11-12 00:52:32,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:32,797 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:52:32,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:32 WrapperNode [2023-11-12 00:52:32,798 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:32,799 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:32,799 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:52:32,799 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:52:32,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:32" (1/1) ... [2023-11-12 00:52:33,049 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:32" (1/1) ... [2023-11-12 00:52:33,521 INFO L138 Inliner]: procedures = 170, calls = 7298, calls flagged for inlining = 68, calls inlined = 55, statements flattened = 18214 [2023-11-12 00:52:33,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:33,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:52:33,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:52:33,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:52:33,532 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:32" (1/1) ... [2023-11-12 00:52:33,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:32" (1/1) ... [2023-11-12 00:52:33,632 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:32" (1/1) ... [2023-11-12 00:52:33,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:32" (1/1) ... [2023-11-12 00:52:34,041 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:32" (1/1) ... [2023-11-12 00:52:34,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:32" (1/1) ... [2023-11-12 00:52:34,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:32" (1/1) ... [2023-11-12 00:52:34,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:32" (1/1) ... [2023-11-12 00:52:34,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:52:34,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:52:34,444 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:52:34,444 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:52:34,445 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:32" (1/1) ... [2023-11-12 00:52:34,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:34,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:52:34,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:52:34,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df8117b-1ce7-4e67-95e3-94f25ff7fb09/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:52:34,515 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2023-11-12 00:52:34,516 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2023-11-12 00:52:34,516 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2023-11-12 00:52:34,516 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2023-11-12 00:52:34,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:52:34,516 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-12 00:52:34,516 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-12 00:52:34,516 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2023-11-12 00:52:34,517 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2023-11-12 00:52:34,518 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2023-11-12 00:52:34,518 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2023-11-12 00:52:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:52:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:52:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2023-11-12 00:52:34,519 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2023-11-12 00:52:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:52:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2023-11-12 00:52:34,519 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2023-11-12 00:52:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2023-11-12 00:52:34,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2023-11-12 00:52:34,520 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2023-11-12 00:52:34,520 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2023-11-12 00:52:34,521 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2023-11-12 00:52:34,521 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2023-11-12 00:52:34,521 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:52:34,521 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:52:34,521 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2023-11-12 00:52:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2023-11-12 00:52:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2023-11-12 00:52:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2023-11-12 00:52:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:52:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:52:34,523 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:52:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2023-11-12 00:52:34,524 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2023-11-12 00:52:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:52:34,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:52:34,525 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2023-11-12 00:52:34,525 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2023-11-12 00:52:34,525 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2023-11-12 00:52:34,525 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2023-11-12 00:52:34,525 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2023-11-12 00:52:34,525 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2023-11-12 00:52:34,525 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2023-11-12 00:52:34,526 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2023-11-12 00:52:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:52:34,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:52:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2023-11-12 00:52:34,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2023-11-12 00:52:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2023-11-12 00:52:34,526 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2023-11-12 00:52:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2023-11-12 00:52:34,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2023-11-12 00:52:34,527 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 00:52:34,527 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 00:52:34,527 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-12 00:52:34,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-12 00:52:34,527 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2023-11-12 00:52:34,527 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2023-11-12 00:52:34,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:52:34,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:52:34,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:52:34,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2023-11-12 00:52:34,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2023-11-12 00:52:34,529 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2023-11-12 00:52:34,530 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2023-11-12 00:52:34,530 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2023-11-12 00:52:34,530 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2023-11-12 00:52:34,530 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2023-11-12 00:52:34,530 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2023-11-12 00:52:34,530 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:52:34,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:52:34,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:52:34,531 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2023-11-12 00:52:34,531 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2023-11-12 00:52:34,531 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2023-11-12 00:52:34,532 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2023-11-12 00:52:34,532 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2023-11-12 00:52:34,532 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2023-11-12 00:52:34,532 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2023-11-12 00:52:34,532 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2023-11-12 00:52:34,532 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2023-11-12 00:52:34,532 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2023-11-12 00:52:34,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:52:34,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:52:34,533 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2023-11-12 00:52:34,533 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2023-11-12 00:52:34,533 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:52:34,534 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:52:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2023-11-12 00:52:34,534 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2023-11-12 00:52:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2023-11-12 00:52:34,534 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2023-11-12 00:52:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2023-11-12 00:52:34,534 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2023-11-12 00:52:34,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 00:52:34,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 00:52:34,535 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2023-11-12 00:52:34,535 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2023-11-12 00:52:34,535 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2023-11-12 00:52:34,535 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2023-11-12 00:52:34,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:52:34,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-12 00:52:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-12 00:52:34,536 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2023-11-12 00:52:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2023-11-12 00:52:34,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:52:34,536 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2023-11-12 00:52:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2023-11-12 00:52:34,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:52:34,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:52:34,537 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2023-11-12 00:52:34,537 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2023-11-12 00:52:35,886 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:52:35,889 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:52:52,080 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:53:04,663 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:53:04,663 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:53:04,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:04 BoogieIcfgContainer [2023-11-12 00:53:04,672 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:53:04,675 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:53:04,675 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:53:04,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:53:04,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:52:29" (1/3) ... [2023-11-12 00:53:04,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6281bdc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:53:04, skipping insertion in model container [2023-11-12 00:53:04,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:32" (2/3) ... [2023-11-12 00:53:04,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6281bdc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:53:04, skipping insertion in model container [2023-11-12 00:53:04,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:04" (3/3) ... [2023-11-12 00:53:04,682 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 [2023-11-12 00:53:04,702 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:53:04,703 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:53:04,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:53:04,886 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;@51a6af0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:53:04,886 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:53:04,912 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) [2023-11-12 00:53:04,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 00:53:04,920 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:04,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 00:53:04,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:53:04,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:04,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1373401080, now seen corresponding path program 1 times [2023-11-12 00:53:04,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:04,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719030084] [2023-11-12 00:53:04,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:04,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:06,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:53:06,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:06,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719030084] [2023-11-12 00:53:06,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719030084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:06,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:06,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:53:06,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597562507] [2023-11-12 00:53:06,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:06,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:53:06,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:06,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:53:06,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:06,114 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) [2023-11-12 00:53:10,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-12 00:53:11,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:11,489 INFO L93 Difference]: Finished difference Result 10391 states and 16678 transitions. [2023-11-12 00:53:11,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:53:11,492 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 6 [2023-11-12 00:53:11,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:11,605 INFO L225 Difference]: With dead ends: 10391 [2023-11-12 00:53:11,606 INFO L226 Difference]: Without dead ends: 5232 [2023-11-12 00:53:11,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:11,750 INFO L413 NwaCegarLoop]: 7674 mSDtfsCounter, 7987 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7987 SdHoareTripleChecker+Valid, 7985 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:11,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7987 Valid, 7985 Invalid, 628 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 625 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2023-11-12 00:53:11,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5232 states.