./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/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_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/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_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/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 6eb9348af754e598a94b08c8ab1d1ba8b50e9f79e34a72936f4d36ffd0927628 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:36:27,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:36:28,056 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:36:28,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:36:28,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:36:28,097 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:36:28,099 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:36:28,099 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:36:28,101 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:36:28,102 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:36:28,103 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:36:28,104 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:36:28,105 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:36:28,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:36:28,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:36:28,109 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:36:28,110 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:36:28,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:36:28,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:36:28,115 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:36:28,116 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:36:28,116 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:36:28,117 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:36:28,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:36:28,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:36:28,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:28,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:36:28,119 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:36:28,119 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:36:28,119 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:36:28,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:36:28,120 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:36:28,121 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:36:28,121 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:36:28,121 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:36:28,121 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:36:28,122 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_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6eb9348af754e598a94b08c8ab1d1ba8b50e9f79e34a72936f4d36ffd0927628 [2023-11-19 07:36:28,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:36:28,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:36:28,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:36:28,512 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:36:28,513 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:36:28,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2023-11-19 07:36:31,741 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:36:32,413 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:36:32,414 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2023-11-19 07:36:32,470 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/data/e4a512e92/d00ee80670124fe4b45029a662c95665/FLAGfabf21a30 [2023-11-19 07:36:32,493 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/data/e4a512e92/d00ee80670124fe4b45029a662c95665 [2023-11-19 07:36:32,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:36:32,504 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:36:32,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:32,511 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:36:32,518 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:36:32,521 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:32" (1/1) ... [2023-11-19 07:36:32,522 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5006456d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:32, skipping insertion in model container [2023-11-19 07:36:32,523 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:32" (1/1) ... [2023-11-19 07:36:32,663 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:36:34,245 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_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i[176209,176222] [2023-11-19 07:36:34,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:34,315 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:36:34,657 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_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i[176209,176222] [2023-11-19 07:36:34,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:34,757 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:36:34,765 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:36:34,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:34 WrapperNode [2023-11-19 07:36:34,766 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:34,768 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:34,768 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:36:34,768 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:36:34,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:34" (1/1) ... [2023-11-19 07:36:34,866 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:34" (1/1) ... [2023-11-19 07:36:35,086 INFO L138 Inliner]: procedures = 146, calls = 1243, calls flagged for inlining = 65, calls inlined = 65, statements flattened = 3155 [2023-11-19 07:36:35,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:35,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:36:35,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:36:35,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:36:35,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:34" (1/1) ... [2023-11-19 07:36:35,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:34" (1/1) ... [2023-11-19 07:36:35,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:34" (1/1) ... [2023-11-19 07:36:35,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:34" (1/1) ... [2023-11-19 07:36:35,233 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:34" (1/1) ... [2023-11-19 07:36:35,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:34" (1/1) ... [2023-11-19 07:36:35,303 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:34" (1/1) ... [2023-11-19 07:36:35,344 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:34" (1/1) ... [2023-11-19 07:36:35,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:36:35,391 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:36:35,391 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:36:35,391 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:36:35,392 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:34" (1/1) ... [2023-11-19 07:36:35,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:35,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:35,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:36:35,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:36:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_radio_text [2023-11-19 07:36:35,477 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_radio_text [2023-11-19 07:36:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:36:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:36:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:36:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:36:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2023-11-19 07:36:35,478 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2023-11-19 07:36:35,479 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_wait_stc [2023-11-19 07:36:35,479 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_wait_stc [2023-11-19 07:36:35,479 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_usecs [2023-11-19 07:36:35,479 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_usecs [2023-11-19 07:36:35,479 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_mute [2023-11-19 07:36:35,480 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_mute [2023-11-19 07:36:35,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 07:36:35,482 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 07:36:35,482 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2023-11-19 07:36:35,482 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2023-11-19 07:36:35,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:36:35,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:36:35,483 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_power_state [2023-11-19 07:36:35,483 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_power_state [2023-11-19 07:36:35,483 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_choose_econtrol_action [2023-11-19 07:36:35,483 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_choose_econtrol_action [2023-11-19 07:36:35,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2023-11-19 07:36:35,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2023-11-19 07:36:35,484 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:36:35,484 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:36:35,485 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 07:36:35,485 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 07:36:35,485 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_tune [2023-11-19 07:36:35,485 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_tune [2023-11-19 07:36:35,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:36:35,486 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:36:35,487 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:36:35,487 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 07:36:35,488 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 07:36:35,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_from_user_1 [2023-11-19 07:36:35,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_from_user_1 [2023-11-19 07:36:35,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-19 07:36:35,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-19 07:36:35,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:36:35,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:36:35,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_strlen [2023-11-19 07:36:35,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_strlen [2023-11-19 07:36:35,489 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2023-11-19 07:36:35,489 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2023-11-19 07:36:35,489 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_rds_buff [2023-11-19 07:36:35,490 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_rds_buff [2023-11-19 07:36:35,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:36:35,490 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_query_fill [2023-11-19 07:36:35,490 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_query_fill [2023-11-19 07:36:35,490 INFO L130 BoogieDeclarations]: Found specification of procedure validate_range [2023-11-19 07:36:35,490 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_range [2023-11-19 07:36:35,490 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_free [2023-11-19 07:36:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_free [2023-11-19 07:36:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_integers [2023-11-19 07:36:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_integers [2023-11-19 07:36:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:36:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:36:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_disable [2023-11-19 07:36:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_disable [2023-11-19 07:36:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:36:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_free [2023-11-19 07:36:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_free [2023-11-19 07:36:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_send_command [2023-11-19 07:36:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_send_command [2023-11-19 07:36:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2023-11-19 07:36:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2023-11-19 07:36:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2023-11-19 07:36:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2023-11-19 07:36:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_property [2023-11-19 07:36:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_property [2023-11-19 07:36:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:36:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 07:36:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 07:36:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:36:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:36:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_read_property [2023-11-19 07:36:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_read_property [2023-11-19 07:36:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 07:36:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 07:36:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_frequency [2023-11-19 07:36:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_frequency [2023-11-19 07:36:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:36:35,499 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:36:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2023-11-19 07:36:35,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2023-11-19 07:36:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 07:36:35,499 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 07:36:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 07:36:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 07:36:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 07:36:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 07:36:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:36:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-19 07:36:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-19 07:36:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_tune_status [2023-11-19 07:36:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_tune_status [2023-11-19 07:36:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2023-11-19 07:36:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2023-11-19 07:36:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_update_tune_status [2023-11-19 07:36:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_update_tune_status [2023-11-19 07:36:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_ps_name [2023-11-19 07:36:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_ps_name [2023-11-19 07:36:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_queryctrl [2023-11-19 07:36:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_queryctrl [2023-11-19 07:36:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_modulator [2023-11-19 07:36:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_modulator [2023-11-19 07:36:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:36:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-19 07:36:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:36:35,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:36:36,182 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:36:36,186 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:36:42,636 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:36:42,663 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:36:42,663 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:36:42,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:42 BoogieIcfgContainer [2023-11-19 07:36:42,677 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:36:42,681 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:36:42,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:36:42,684 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:36:42,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:36:32" (1/3) ... [2023-11-19 07:36:42,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661c5368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:42, skipping insertion in model container [2023-11-19 07:36:42,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:34" (2/3) ... [2023-11-19 07:36:42,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661c5368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:42, skipping insertion in model container [2023-11-19 07:36:42,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:42" (3/3) ... [2023-11-19 07:36:42,690 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2023-11-19 07:36:42,710 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:36:42,710 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:36:42,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:36:42,815 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;@4fec003e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:36:42,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:36:42,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 1165 states, 871 states have (on average 1.4087256027554536) internal successors, (1227), 879 states have internal predecessors, (1227), 244 states have call successors, (244), 48 states have call predecessors, (244), 48 states have return successors, (244), 244 states have call predecessors, (244), 244 states have call successors, (244) [2023-11-19 07:36:42,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 07:36:42,869 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:42,870 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2023-11-19 07:36:42,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:42,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:42,879 INFO L85 PathProgramCache]: Analyzing trace with hash 734361040, now seen corresponding path program 1 times [2023-11-19 07:36:42,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:42,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421929614] [2023-11-19 07:36:42,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:42,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:44,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:36:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:44,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:36:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:44,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:36:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:44,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:36:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:44,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-19 07:36:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:44,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:36:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:44,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-19 07:36:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:44,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 07:36:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:44,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-19 07:36:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:36:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:44,426 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-19 07:36:44,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:44,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421929614] [2023-11-19 07:36:44,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421929614] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:36:44,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126868198] [2023-11-19 07:36:44,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:44,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:44,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:44,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:44,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:36:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:45,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 1310 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:36:45,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:45,259 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:36:45,260 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:45,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126868198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:45,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:36:45,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2023-11-19 07:36:45,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963135075] [2023-11-19 07:36:45,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:45,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:36:45,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:45,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:36:45,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:36:45,313 INFO L87 Difference]: Start difference. First operand has 1165 states, 871 states have (on average 1.4087256027554536) internal successors, (1227), 879 states have internal predecessors, (1227), 244 states have call successors, (244), 48 states have call predecessors, (244), 48 states have return successors, (244), 244 states have call predecessors, (244), 244 states have call successors, (244) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:36:45,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:45,710 INFO L93 Difference]: Finished difference Result 2331 states and 3459 transitions. [2023-11-19 07:36:45,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:36:45,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 87 [2023-11-19 07:36:45,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:45,748 INFO L225 Difference]: With dead ends: 2331 [2023-11-19 07:36:45,748 INFO L226 Difference]: Without dead ends: 1156 [2023-11-19 07:36:45,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:36:45,769 INFO L413 NwaCegarLoop]: 1707 mSDtfsCounter, 1 mSDsluCounter, 5109 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6816 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:45,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6816 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:36:45,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2023-11-19 07:36:45,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1156. [2023-11-19 07:36:45,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 863 states have (on average 1.3974507531865585) internal successors, (1206), 871 states have internal predecessors, (1206), 243 states have call successors, (243), 48 states have call predecessors, (243), 49 states have return successors, (250), 243 states have call predecessors, (250), 243 states have call successors, (250) [2023-11-19 07:36:45,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1699 transitions. [2023-11-19 07:36:45,971 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1699 transitions. Word has length 87 [2023-11-19 07:36:45,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:45,972 INFO L495 AbstractCegarLoop]: Abstraction has 1156 states and 1699 transitions. [2023-11-19 07:36:45,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:36:45,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1699 transitions. [2023-11-19 07:36:45,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-19 07:36:45,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:45,985 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 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, 1] [2023-11-19 07:36:46,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:46,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:36:46,213 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:46,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:46,214 INFO L85 PathProgramCache]: Analyzing trace with hash -2071494465, now seen corresponding path program 1 times [2023-11-19 07:36:46,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:46,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859005362] [2023-11-19 07:36:46,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:46,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:46,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:36:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:46,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:36:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:46,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:36:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:47,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:36:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:47,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-19 07:36:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:47,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-19 07:36:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:47,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:36:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:47,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:36:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:47,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:36:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:47,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:36:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:47,105 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-19 07:36:47,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:47,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859005362] [2023-11-19 07:36:47,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859005362] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:36:47,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798854231] [2023-11-19 07:36:47,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:47,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:47,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:47,109 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:47,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:36:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:47,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:36:47,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:47,911 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 07:36:47,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:47,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798854231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:47,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:36:47,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 6 [2023-11-19 07:36:47,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968020745] [2023-11-19 07:36:47,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:47,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:36:47,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:47,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:36:47,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:36:47,916 INFO L87 Difference]: Start difference. First operand 1156 states and 1699 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:36:48,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:48,065 INFO L93 Difference]: Finished difference Result 2307 states and 3389 transitions. [2023-11-19 07:36:48,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:36:48,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 90 [2023-11-19 07:36:48,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:48,077 INFO L225 Difference]: With dead ends: 2307 [2023-11-19 07:36:48,078 INFO L226 Difference]: Without dead ends: 1156 [2023-11-19 07:36:48,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:36:48,086 INFO L413 NwaCegarLoop]: 1690 mSDtfsCounter, 0 mSDsluCounter, 5065 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6755 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:48,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6755 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:36:48,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2023-11-19 07:36:48,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1156. [2023-11-19 07:36:48,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 863 states have (on average 1.3974507531865585) internal successors, (1206), 871 states have internal predecessors, (1206), 243 states have call successors, (243), 48 states have call predecessors, (243), 49 states have return successors, (249), 243 states have call predecessors, (249), 243 states have call successors, (249) [2023-11-19 07:36:48,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1698 transitions. [2023-11-19 07:36:48,160 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1698 transitions. Word has length 90 [2023-11-19 07:36:48,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:48,161 INFO L495 AbstractCegarLoop]: Abstraction has 1156 states and 1698 transitions. [2023-11-19 07:36:48,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:36:48,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1698 transitions. [2023-11-19 07:36:48,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-19 07:36:48,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:48,180 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 2, 2, 2, 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] [2023-11-19 07:36:48,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:48,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe1b3dc1-f02f-42e7-8f5e-2c3d7dc58ce7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:48,381 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:48,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:48,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1020897852, now seen corresponding path program 2 times [2023-11-19 07:36:48,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:48,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832186823] [2023-11-19 07:36:48,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:48,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:50,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:36:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:50,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:36:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:50,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:36:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:50,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-19 07:36:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:50,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:36:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:50,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:36:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:50,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:36:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:50,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:36:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:50,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 07:36:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:50,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:36:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:50,397 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-19 07:36:50,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:50,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832186823] [2023-11-19 07:36:50,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832186823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:50,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:50,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:36:50,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241242801] [2023-11-19 07:36:50,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:50,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:36:50,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:50,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:36:50,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:36:50,403 INFO L87 Difference]: Start difference. First operand 1156 states and 1698 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-19 07:37:02,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:37:03,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:03,646 INFO L93 Difference]: Finished difference Result 2332 states and 3427 transitions. [2023-11-19 07:37:03,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:37:03,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 93 [2023-11-19 07:37:03,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:03,660 INFO L225 Difference]: With dead ends: 2332 [2023-11-19 07:37:03,663 INFO L226 Difference]: Without dead ends: 1199 [2023-11-19 07:37:03,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:37:03,679 INFO L413 NwaCegarLoop]: 1399 mSDtfsCounter, 317 mSDsluCounter, 6524 mSDsCounter, 0 mSdLazyCounter, 3418 mSolverCounterSat, 220 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 7923 SdHoareTripleChecker+Invalid, 3639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 3418 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:03,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 7923 Invalid, 3639 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [220 Valid, 3418 Invalid, 1 Unknown, 0 Unchecked, 12.8s Time] [2023-11-19 07:37:03,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2023-11-19 07:37:03,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1162. [2023-11-19 07:37:03,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 868 states have (on average 1.3963133640552996) internal successors, (1212), 876 states have internal predecessors, (1212), 243 states have call successors, (243), 48 states have call predecessors, (243), 50 states have return successors, (252), 244 states have call predecessors, (252), 243 states have call successors, (252) [2023-11-19 07:37:03,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1707 transitions. [2023-11-19 07:37:03,787 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1707 transitions. Word has length 93 [2023-11-19 07:37:03,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:03,789 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1707 transitions. [2023-11-19 07:37:03,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-19 07:37:03,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1707 transitions. [2023-11-19 07:37:03,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 07:37:03,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:03,799 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 2, 2, 2, 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] [2023-11-19 07:37:03,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:37:03,800 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:03,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:03,800 INFO L85 PathProgramCache]: Analyzing trace with hash 131201441, now seen corresponding path program 1 times [2023-11-19 07:37:03,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:03,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250618070] [2023-11-19 07:37:03,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:03,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:37:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-19 07:37:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:37:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:37:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:37:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:37:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 07:37:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:37:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,474 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-19 07:37:05,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:05,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250618070] [2023-11-19 07:37:05,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250618070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:05,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:05,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 07:37:05,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639309732] [2023-11-19 07:37:05,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:05,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:37:05,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:05,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:37:05,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:37:05,479 INFO L87 Difference]: Start difference. First operand 1162 states and 1707 transitions. Second operand has 10 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)