./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_e4b85102-862d-4f00-8944-f8f7678748e4/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b85102-862d-4f00-8944-f8f7678748e4/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_e4b85102-862d-4f00-8944-f8f7678748e4/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b85102-862d-4f00-8944-f8f7678748e4/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b85102-862d-4f00-8944-f8f7678748e4/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_e4b85102-862d-4f00-8944-f8f7678748e4/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 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:35:07,530 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:35:07,616 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b85102-862d-4f00-8944-f8f7678748e4/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:35:07,622 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:35:07,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:35:07,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:35:07,653 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:35:07,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:35:07,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:35:07,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:35:07,656 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:35:07,657 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:35:07,657 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:35:07,658 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:35:07,659 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:35:07,659 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:35:07,660 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:35:07,660 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:35:07,661 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:35:07,662 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:35:07,662 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:35:07,663 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:35:07,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:35:07,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:35:07,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:35:07,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:35:07,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:35:07,667 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:35:07,668 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:35:07,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:35:07,669 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:35:07,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:35:07,670 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:35:07,670 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:35:07,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:07,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:35:07,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:35:07,673 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:35:07,673 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:35:07,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:35:07,674 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:35:07,675 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:35:07,675 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:35:07,676 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:35:07,676 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_e4b85102-862d-4f00-8944-f8f7678748e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b85102-862d-4f00-8944-f8f7678748e4/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 [2023-11-23 20:35:07,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:35:07,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:35:07,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:35:07,981 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:35:07,982 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:35:07,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b85102-862d-4f00-8944-f8f7678748e4/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2023-11-23 20:35:11,460 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:35:12,304 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:35:12,305 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b85102-862d-4f00-8944-f8f7678748e4/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2023-11-23 20:35:12,377 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b85102-862d-4f00-8944-f8f7678748e4/bin/utaipan-verify-mE87zJ7Ire/data/565fa6a3f/bc585573d63d4b7dba75e445027491e7/FLAG894c860b6 [2023-11-23 20:35:12,401 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b85102-862d-4f00-8944-f8f7678748e4/bin/utaipan-verify-mE87zJ7Ire/data/565fa6a3f/bc585573d63d4b7dba75e445027491e7 [2023-11-23 20:35:12,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:35:12,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:35:12,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:12,417 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:35:12,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:35:12,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:12" (1/1) ... [2023-11-23 20:35:12,430 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37840e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:12, skipping insertion in model container [2023-11-23 20:35:12,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:12" (1/1) ... [2023-11-23 20:35:12,739 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:35:15,561 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_e4b85102-862d-4f00-8944-f8f7678748e4/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i[424236,424249] [2023-11-23 20:35:15,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:15,836 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:35:16,619 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_e4b85102-862d-4f00-8944-f8f7678748e4/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i[424236,424249] [2023-11-23 20:35:16,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:16,751 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:35:16,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16 WrapperNode [2023-11-23 20:35:16,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:16,753 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:16,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:35:16,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:35:16,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:16,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:17,394 INFO L138 Inliner]: procedures = 189, calls = 7574, calls flagged for inlining = 69, calls inlined = 54, statements flattened = 18320 [2023-11-23 20:35:17,395 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:17,395 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:35:17,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:35:17,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:35:17,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:17,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:17,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:17,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:18,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:18,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:18,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:18,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:18,314 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:35:18,315 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:35:18,316 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:35:18,316 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:35:18,317 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (1/1) ... [2023-11-23 20:35:18,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:18,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b85102-862d-4f00-8944-f8f7678748e4/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:18,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b85102-862d-4f00-8944-f8f7678748e4/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:35:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock [2023-11-23 20:35:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock [2023-11-23 20:35:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2023-11-23 20:35:18,394 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2023-11-23 20:35:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2023-11-23 20:35:18,394 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2023-11-23 20:35:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:35:18,395 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 20:35:18,395 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 20:35:18,395 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2023-11-23 20:35:18,395 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2023-11-23 20:35:18,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock [2023-11-23 20:35:18,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock [2023-11-23 20:35:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2023-11-23 20:35:18,396 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2023-11-23 20:35:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:35:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:35:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2023-11-23 20:35:18,397 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2023-11-23 20:35:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:35:18,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b85102-862d-4f00-8944-f8f7678748e4/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:35:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2023-11-23 20:35:18,402 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2023-11-23 20:35:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2023-11-23 20:35:18,403 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2023-11-23 20:35:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2023-11-23 20:35:18,404 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2023-11-23 20:35:18,404 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:35:18,405 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:35:18,405 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2023-11-23 20:35:18,405 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2023-11-23 20:35:18,406 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2023-11-23 20:35:18,406 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2023-11-23 20:35:18,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:35:18,406 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 20:35:18,407 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 20:35:18,407 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2023-11-23 20:35:18,408 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2023-11-23 20:35:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:35:18,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:35:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2023-11-23 20:35:18,409 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2023-11-23 20:35:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2023-11-23 20:35:18,409 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2023-11-23 20:35:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2023-11-23 20:35:18,410 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2023-11-23 20:35:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2023-11-23 20:35:18,410 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2023-11-23 20:35:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:35:18,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:35:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2023-11-23 20:35:18,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2023-11-23 20:35:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2023-11-23 20:35:18,411 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2023-11-23 20:35:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 20:35:18,412 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 20:35:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 20:35:18,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 20:35:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2023-11-23 20:35:18,412 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2023-11-23 20:35:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:35:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:35:18,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:35:18,414 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2023-11-23 20:35:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2023-11-23 20:35:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2023-11-23 20:35:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2023-11-23 20:35:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2023-11-23 20:35:18,416 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2023-11-23 20:35:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:35:18,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:35:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:35:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2023-11-23 20:35:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2023-11-23 20:35:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2023-11-23 20:35:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2023-11-23 20:35:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2023-11-23 20:35:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2023-11-23 20:35:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2023-11-23 20:35:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2023-11-23 20:35:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2023-11-23 20:35:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2023-11-23 20:35:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:35:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:35:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2023-11-23 20:35:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2023-11-23 20:35:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:35:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:35:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2023-11-23 20:35:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2023-11-23 20:35:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2023-11-23 20:35:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2023-11-23 20:35:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2023-11-23 20:35:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2023-11-23 20:35:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 20:35:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 20:35:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2023-11-23 20:35:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2023-11-23 20:35:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2023-11-23 20:35:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2023-11-23 20:35:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:35:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-23 20:35:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-23 20:35:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock [2023-11-23 20:35:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock [2023-11-23 20:35:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2023-11-23 20:35:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2023-11-23 20:35:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:35:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2023-11-23 20:35:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2023-11-23 20:35:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:35:18,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:35:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2023-11-23 20:35:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2023-11-23 20:35:19,782 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:35:19,786 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:35,844 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:35:47,283 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:35:47,284 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:35:47,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:47 BoogieIcfgContainer [2023-11-23 20:35:47,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:35:47,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:35:47,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:35:47,295 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:35:47,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:35:12" (1/3) ... [2023-11-23 20:35:47,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed50243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:47, skipping insertion in model container [2023-11-23 20:35:47,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:16" (2/3) ... [2023-11-23 20:35:47,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed50243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:47, skipping insertion in model container [2023-11-23 20:35:47,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:47" (3/3) ... [2023-11-23 20:35:47,298 INFO L112 eAbstractionObserver]: Analyzing ICFG main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2023-11-23 20:35:47,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:35:47,318 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:35:47,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:35:47,487 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;@318a931d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:35:47,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:35:47,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 5300 states, 3614 states have (on average 1.4468732706142777) internal successors, (5229), 3628 states have internal predecessors, (5229), 1635 states have call successors, (1635), 49 states have call predecessors, (1635), 49 states have return successors, (1635), 1634 states have call predecessors, (1635), 1635 states have call successors, (1635) [2023-11-23 20:35:47,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:35:47,519 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:47,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 20:35:47,521 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:47,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:47,527 INFO L85 PathProgramCache]: Analyzing trace with hash -28703905, now seen corresponding path program 1 times [2023-11-23 20:35:47,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:47,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318593746] [2023-11-23 20:35:47,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:47,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:48,929 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 20:35:48,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:48,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318593746] [2023-11-23 20:35:48,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318593746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:48,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:48,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:35:48,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470892041] [2023-11-23 20:35:48,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:48,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:35:48,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:48,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:35:48,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:35:49,017 INFO L87 Difference]: Start difference. First operand has 5300 states, 3614 states have (on average 1.4468732706142777) internal successors, (5229), 3628 states have internal predecessors, (5229), 1635 states have call successors, (1635), 49 states have call predecessors, (1635), 49 states have return successors, (1635), 1634 states have call predecessors, (1635), 1635 states have call successors, (1635) 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) [2023-11-23 20:35:52,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:52,016 INFO L93 Difference]: Finished difference Result 10597 states and 17051 transitions. [2023-11-23 20:35:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:35:52,018 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 [2023-11-23 20:35:52,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:52,122 INFO L225 Difference]: With dead ends: 10597 [2023-11-23 20:35:52,122 INFO L226 Difference]: Without dead ends: 5296 [2023-11-23 20:35:52,237 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 [2023-11-23 20:35:52,241 INFO L413 NwaCegarLoop]: 7932 mSDtfsCounter, 8483 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8483 SdHoareTripleChecker+Valid, 7932 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:52,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8483 Valid, 7932 Invalid, 554 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 20:35:52,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5296 states. [2023-11-23 20:35:53,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5296 to 5296. [2023-11-23 20:35:53,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 3613 states have (on average 1.4461666205369499) internal successors, (5225), 3624 states have internal predecessors, (5225), 1634 states have call successors, (1634), 49 states have call predecessors, (1634), 48 states have return successors, (1625), 1624 states have call predecessors, (1625), 1625 states have call successors, (1625) [2023-11-23 20:35:53,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 8484 transitions. [2023-11-23 20:35:53,322 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 8484 transitions. Word has length 6 [2023-11-23 20:35:53,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:53,324 INFO L495 AbstractCegarLoop]: Abstraction has 5296 states and 8484 transitions. [2023-11-23 20:35:53,324 INFO L496 AbstractCegarLoop]: INTERPOLANT 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) [2023-11-23 20:35:53,324 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 8484 transitions. [2023-11-23 20:35:53,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:35:53,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:53,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:53,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:35:53,326 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:53,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:53,326 INFO L85 PathProgramCache]: Analyzing trace with hash -892951178, now seen corresponding path program 1 times [2023-11-23 20:35:53,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:53,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660078344] [2023-11-23 20:35:53,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:53,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat