./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 9bd2c7ff 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_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.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_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:15,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:15,408 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:46:15,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:15,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:15,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:15,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:15,454 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:15,455 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:15,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:15,462 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:15,462 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:15,463 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:15,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:15,465 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:15,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:15,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:15,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:15,467 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:15,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:15,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:15,468 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:15,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:15,470 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:15,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:15,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:15,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:15,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:15,472 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:46:15,473 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:15,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:46:15,474 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:15,474 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:46:15,475 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:15,475 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:15,475 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:15,475 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2023-11-19 07:46:15,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:15,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:15,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:15,849 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:15,850 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:15,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu/../../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 [2023-11-19 07:46:19,000 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:19,786 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:19,787 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97f2e873-2e17-4507-9f8b-3ad981045ead/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 [2023-11-19 07:46:19,868 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu/data/635a452c3/0dae2163b761442198e571fdd37438a0/FLAG167c2c96c [2023-11-19 07:46:19,886 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu/data/635a452c3/0dae2163b761442198e571fdd37438a0 [2023-11-19 07:46:19,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:19,895 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:19,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:19,899 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:19,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:19,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:19" (1/1) ... [2023-11-19 07:46:19,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ace6179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:19, skipping insertion in model container [2023-11-19 07:46:19,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:19" (1/1) ... [2023-11-19 07:46:20,163 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:22,434 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_97f2e873-2e17-4507-9f8b-3ad981045ead/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] [2023-11-19 07:46:22,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:22,627 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:23,399 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_97f2e873-2e17-4507-9f8b-3ad981045ead/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] [2023-11-19 07:46:23,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:23,546 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:23,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:23 WrapperNode [2023-11-19 07:46:23,547 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:23,548 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:23,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:23,549 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:23,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:23" (1/1) ... [2023-11-19 07:46:23,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:23" (1/1) ... [2023-11-19 07:46:24,520 INFO L138 Inliner]: procedures = 170, calls = 7298, calls flagged for inlining = 68, calls inlined = 55, statements flattened = 18214 [2023-11-19 07:46:24,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:24,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:24,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:24,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:24,533 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:23" (1/1) ... [2023-11-19 07:46:24,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:23" (1/1) ... [2023-11-19 07:46:24,626 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:23" (1/1) ... [2023-11-19 07:46:24,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:23" (1/1) ... [2023-11-19 07:46:24,997 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:23" (1/1) ... [2023-11-19 07:46:25,075 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:23" (1/1) ... [2023-11-19 07:46:25,135 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:23" (1/1) ... [2023-11-19 07:46:25,186 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:23" (1/1) ... [2023-11-19 07:46:25,294 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:25,296 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:25,296 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:25,296 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:25,297 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:23" (1/1) ... [2023-11-19 07:46:25,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:25,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:25,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:25,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97f2e873-2e17-4507-9f8b-3ad981045ead/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2023-11-19 07:46:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2023-11-19 07:46:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2023-11-19 07:46:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2023-11-19 07:46:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:46:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 07:46:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 07:46:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2023-11-19 07:46:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2023-11-19 07:46:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2023-11-19 07:46:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2023-11-19 07:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2023-11-19 07:46:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2023-11-19 07:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2023-11-19 07:46:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2023-11-19 07:46:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2023-11-19 07:46:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2023-11-19 07:46:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2023-11-19 07:46:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2023-11-19 07:46:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2023-11-19 07:46:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2023-11-19 07:46:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:46:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:46:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2023-11-19 07:46:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2023-11-19 07:46:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2023-11-19 07:46:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2023-11-19 07:46:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:46:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:46:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:46:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2023-11-19 07:46:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2023-11-19 07:46:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:46:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:46:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2023-11-19 07:46:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2023-11-19 07:46:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2023-11-19 07:46:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2023-11-19 07:46:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2023-11-19 07:46:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2023-11-19 07:46:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2023-11-19 07:46:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2023-11-19 07:46:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:46:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:46:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2023-11-19 07:46:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2023-11-19 07:46:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2023-11-19 07:46:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2023-11-19 07:46:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2023-11-19 07:46:25,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2023-11-19 07:46:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 07:46:25,380 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 07:46:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 07:46:25,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 07:46:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2023-11-19 07:46:25,381 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2023-11-19 07:46:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:46:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:46:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2023-11-19 07:46:25,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2023-11-19 07:46:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2023-11-19 07:46:25,382 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2023-11-19 07:46:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2023-11-19 07:46:25,382 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2023-11-19 07:46:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2023-11-19 07:46:25,382 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2023-11-19 07:46:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 07:46:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 07:46:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:46:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2023-11-19 07:46:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2023-11-19 07:46:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2023-11-19 07:46:25,384 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2023-11-19 07:46:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2023-11-19 07:46:25,384 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2023-11-19 07:46:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2023-11-19 07:46:25,384 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2023-11-19 07:46:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2023-11-19 07:46:25,385 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2023-11-19 07:46:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:46:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2023-11-19 07:46:25,385 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2023-11-19 07:46:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:46:25,386 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:46:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2023-11-19 07:46:25,386 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2023-11-19 07:46:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2023-11-19 07:46:25,386 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2023-11-19 07:46:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2023-11-19 07:46:25,387 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2023-11-19 07:46:25,387 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 07:46:25,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 07:46:25,387 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2023-11-19 07:46:25,387 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2023-11-19 07:46:25,387 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2023-11-19 07:46:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2023-11-19 07:46:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:46:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-19 07:46:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-19 07:46:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2023-11-19 07:46:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2023-11-19 07:46:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:46:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2023-11-19 07:46:25,389 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2023-11-19 07:46:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:25,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2023-11-19 07:46:25,389 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2023-11-19 07:46:26,740 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:26,749 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:43,008 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:43,057 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:43,057 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:46:43,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:43 BoogieIcfgContainer [2023-11-19 07:46:43,087 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:43,091 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:46:43,092 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:46:43,095 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:46:43,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:19" (1/3) ... [2023-11-19 07:46:43,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6791fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:43, skipping insertion in model container [2023-11-19 07:46:43,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:23" (2/3) ... [2023-11-19 07:46:43,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6791fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:43, skipping insertion in model container [2023-11-19 07:46:43,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:43" (3/3) ... [2023-11-19 07:46:43,101 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 [2023-11-19 07:46:43,120 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:46:43,120 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:46:43,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:46:43,307 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=PETRI_NET, 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;@7bb853c1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:46:43,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:46:43,334 INFO L276 IsEmpty]: Start isEmpty. Operand has 6396 states, 4761 states have (on average 1.5148078134845622) internal successors, (7212), 4773 states have internal predecessors, (7212), 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) [2023-11-19 07:46:43,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:46:43,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:43,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:43,343 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:46:43,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:43,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1691867965, now seen corresponding path program 1 times [2023-11-19 07:46:43,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:43,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359445589] [2023-11-19 07:46:43,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:43,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:44,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:44,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:44,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359445589] [2023-11-19 07:46:44,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359445589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:44,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:44,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:46:44,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032506956] [2023-11-19 07:46:44,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:44,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:46:44,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:44,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:46:44,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:44,740 INFO L87 Difference]: Start difference. First operand has 6396 states, 4761 states have (on average 1.5148078134845622) internal successors, (7212), 4773 states have internal predecessors, (7212), 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 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-19 07:46:45,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:45,815 INFO L93 Difference]: Finished difference Result 12883 states and 20965 transitions. [2023-11-19 07:46:45,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:46:45,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 8 [2023-11-19 07:46:45,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:45,942 INFO L225 Difference]: With dead ends: 12883 [2023-11-19 07:46:45,947 INFO L226 Difference]: Without dead ends: 6486 [2023-11-19 07:46:46,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:46,095 INFO L413 NwaCegarLoop]: 10303 mSDtfsCounter, 9852 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9852 SdHoareTripleChecker+Valid, 10888 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:46,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9852 Valid, 10888 Invalid, 8 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:46:46,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6486 states. [2023-11-19 07:46:47,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6486 to 6484. [2023-11-19 07:46:47,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6484 states, 4828 states have (on average 1.5006213753106876) internal successors, (7245), 4836 states have internal predecessors, (7245), 1601 states have call successors, (1601), 55 states have call predecessors, (1601), 54 states have return successors, (1595), 1594 states have call predecessors, (1595), 1595 states have call successors, (1595) [2023-11-19 07:46:48,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6484 states to 6484 states and 10441 transitions. [2023-11-19 07:46:48,063 INFO L78 Accepts]: Start accepts. Automaton has 6484 states and 10441 transitions. Word has length 8 [2023-11-19 07:46:48,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:48,064 INFO L495 AbstractCegarLoop]: Abstraction has 6484 states and 10441 transitions. [2023-11-19 07:46:48,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-19 07:46:48,064 INFO L276 IsEmpty]: Start isEmpty. Operand 6484 states and 10441 transitions. [2023-11-19 07:46:48,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:46:48,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:48,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:48,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:46:48,066 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:46:48,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:48,067 INFO L85 PathProgramCache]: Analyzing trace with hash -911306608, now seen corresponding path program 1 times [2023-11-19 07:46:48,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:48,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933829110] [2023-11-19 07:46:48,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:48,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:48,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:48,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:48,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933829110] [2023-11-19 07:46:48,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933829110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:48,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:48,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:46:48,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652645580] [2023-11-19 07:46:48,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:49,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:46:49,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:49,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:46:49,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:49,007 INFO L87 Difference]: Start difference. First operand 6484 states and 10441 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-19 07:46:49,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:49,763 INFO L93 Difference]: Finished difference Result 6486 states and 10442 transitions. [2023-11-19 07:46:49,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:46:49,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 9 [2023-11-19 07:46:49,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:49,870 INFO L225 Difference]: With dead ends: 6486 [2023-11-19 07:46:49,871 INFO L226 Difference]: Without dead ends: 6483 [2023-11-19 07:46:49,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:49,883 INFO L413 NwaCegarLoop]: 10296 mSDtfsCounter, 10291 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10291 SdHoareTripleChecker+Valid, 10296 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:49,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10291 Valid, 10296 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:46:49,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6483 states. [2023-11-19 07:46:51,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6483 to 6483. [2023-11-19 07:46:51,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6483 states, 4828 states have (on average 1.5004142502071252) internal successors, (7244), 4835 states have internal predecessors, (7244), 1600 states have call successors, (1600), 55 states have call predecessors, (1600), 54 states have return successors, (1595), 1594 states have call predecessors, (1595), 1595 states have call successors, (1595) [2023-11-19 07:46:51,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6483 states to 6483 states and 10439 transitions. [2023-11-19 07:46:51,851 INFO L78 Accepts]: Start accepts. Automaton has 6483 states and 10439 transitions. Word has length 9 [2023-11-19 07:46:51,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:51,852 INFO L495 AbstractCegarLoop]: Abstraction has 6483 states and 10439 transitions. [2023-11-19 07:46:51,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-19 07:46:51,853 INFO L276 IsEmpty]: Start isEmpty. Operand 6483 states and 10439 transitions. [2023-11-19 07:46:51,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 07:46:51,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:51,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:51,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:46:51,855 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:46:51,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:51,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1811263846, now seen corresponding path program 1 times [2023-11-19 07:46:51,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:51,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544002168] [2023-11-19 07:46:51,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:51,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:52,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:52,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:52,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544002168] [2023-11-19 07:46:52,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544002168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:52,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:52,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:46:52,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635601815] [2023-11-19 07:46:52,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:52,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:46:52,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:52,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:46:52,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:52,640 INFO L87 Difference]: Start difference. First operand 6483 states and 10439 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-19 07:46:53,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:53,202 INFO L93 Difference]: Finished difference Result 6485 states and 10440 transitions. [2023-11-19 07:46:53,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:46:53,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 10 [2023-11-19 07:46:53,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:53,286 INFO L225 Difference]: With dead ends: 6485 [2023-11-19 07:46:53,286 INFO L226 Difference]: Without dead ends: 6482 [2023-11-19 07:46:53,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:53,304 INFO L413 NwaCegarLoop]: 10294 mSDtfsCounter, 10288 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10288 SdHoareTripleChecker+Valid, 10294 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:53,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10288 Valid, 10294 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:46:53,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6482 states. [2023-11-19 07:46:54,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6482 to 6482. [2023-11-19 07:46:54,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6482 states, 4828 states have (on average 1.5002071251035625) internal successors, (7243), 4834 states have internal predecessors, (7243), 1599 states have call successors, (1599), 55 states have call predecessors, (1599), 54 states have return successors, (1595), 1594 states have call predecessors, (1595), 1595 states have call successors, (1595) [2023-11-19 07:46:54,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6482 states to 6482 states and 10437 transitions. [2023-11-19 07:46:54,605 INFO L78 Accepts]: Start accepts. Automaton has 6482 states and 10437 transitions. Word has length 10 [2023-11-19 07:46:54,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:54,605 INFO L495 AbstractCegarLoop]: Abstraction has 6482 states and 10437 transitions. [2023-11-19 07:46:54,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-19 07:46:54,606 INFO L276 IsEmpty]: Start isEmpty. Operand 6482 states and 10437 transitions. [2023-11-19 07:46:54,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 07:46:54,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:54,607 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:54,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:46:54,607 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:46:54,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:54,608 INFO L85 PathProgramCache]: Analyzing trace with hash 311606867, now seen corresponding path program 1 times [2023-11-19 07:46:54,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:54,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085512091] [2023-11-19 07:46:54,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:54,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:55,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:55,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:55,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085512091] [2023-11-19 07:46:55,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085512091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:55,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:55,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:46:55,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233284315] [2023-11-19 07:46:55,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:55,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:46:55,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:55,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:46:55,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:55,189 INFO L87 Difference]: Start difference. First operand 6482 states and 10437 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-19 07:46:56,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:56,337 INFO L93 Difference]: Finished difference Result 19424 states and 31417 transitions. [2023-11-19 07:46:56,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:46:56,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 11 [2023-11-19 07:46:56,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:56,523 INFO L225 Difference]: With dead ends: 19424 [2023-11-19 07:46:56,524 INFO L226 Difference]: Without dead ends: 12941 [2023-11-19 07:46:56,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:56,799 INFO L413 NwaCegarLoop]: 10420 mSDtfsCounter, 10316 mSDsluCounter, 10307 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10316 SdHoareTripleChecker+Valid, 20727 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:56,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10316 Valid, 20727 Invalid, 12 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:46:56,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12941 states. [2023-11-19 07:46:59,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12941 to 12937. [2023-11-19 07:46:59,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12937 states, 9639 states have (on average 1.500778089013383) internal successors, (14466), 9649 states have internal predecessors, (14466), 3191 states have call successors, (3191), 108 states have call predecessors, (3191), 106 states have return successors, (3265), 3183 states have call predecessors, (3265), 3185 states have call successors, (3265) [2023-11-19 07:47:00,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12937 states to 12937 states and 20922 transitions. [2023-11-19 07:47:00,097 INFO L78 Accepts]: Start accepts. Automaton has 12937 states and 20922 transitions. Word has length 11 [2023-11-19 07:47:00,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:00,098 INFO L495 AbstractCegarLoop]: Abstraction has 12937 states and 20922 transitions. [2023-11-19 07:47:00,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-19 07:47:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand 12937 states and 20922 transitions. [2023-11-19 07:47:00,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-19 07:47:00,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:00,124 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:00,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:47:00,125 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:00,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:00,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1615139550, now seen corresponding path program 1 times [2023-11-19 07:47:00,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:00,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968887245] [2023-11-19 07:47:00,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:00,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms