./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.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_9e65d496-528b-4e3d-b172-9092f5ad6d16/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e65d496-528b-4e3d-b172-9092f5ad6d16/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_9e65d496-528b-4e3d-b172-9092f5ad6d16/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e65d496-528b-4e3d-b172-9092f5ad6d16/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e65d496-528b-4e3d-b172-9092f5ad6d16/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_9e65d496-528b-4e3d-b172-9092f5ad6d16/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 98c33dd4a8b9d397de123c51515d9ce94b0ce1f1fda3976c2bf2bd86eef00096 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:05:00,410 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:05:00,530 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e65d496-528b-4e3d-b172-9092f5ad6d16/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 08:05:00,539 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:05:00,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:05:00,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:05:00,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:05:00,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:05:00,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:05:00,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:05:00,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:05:00,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:05:00,587 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:05:00,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:05:00,589 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:05:00,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:05:00,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:05:00,590 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:05:00,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:05:00,591 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:05:00,592 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:05:00,592 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:05:00,593 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:05:00,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:05:00,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:05:00,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:00,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:05:00,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:05:00,596 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:05:00,596 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:05:00,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:05:00,598 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:05:00,598 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:05:00,598 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:05:00,598 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:05:00,599 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:05:00,599 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_9e65d496-528b-4e3d-b172-9092f5ad6d16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e65d496-528b-4e3d-b172-9092f5ad6d16/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98c33dd4a8b9d397de123c51515d9ce94b0ce1f1fda3976c2bf2bd86eef00096 [2023-11-19 08:05:00,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:05:00,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:05:00,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:05:00,956 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:05:00,957 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:05:00,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e65d496-528b-4e3d-b172-9092f5ad6d16/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i [2023-11-19 08:05:04,196 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:05:04,873 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:05:04,873 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e65d496-528b-4e3d-b172-9092f5ad6d16/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i [2023-11-19 08:05:04,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e65d496-528b-4e3d-b172-9092f5ad6d16/bin/uautomizer-verify-uCwYo4JHxu/data/f0cba7130/3db5728a75b247acb925cc5bdfb010c2/FLAG26eb2e225 [2023-11-19 08:05:04,951 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e65d496-528b-4e3d-b172-9092f5ad6d16/bin/uautomizer-verify-uCwYo4JHxu/data/f0cba7130/3db5728a75b247acb925cc5bdfb010c2 [2023-11-19 08:05:04,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:05:04,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:05:04,961 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:04,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:05:04,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:05:04,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:04" (1/1) ... [2023-11-19 08:05:04,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b7eae0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:04, skipping insertion in model container [2023-11-19 08:05:04,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:04" (1/1) ... [2023-11-19 08:05:05,094 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:05:06,903 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_9e65d496-528b-4e3d-b172-9092f5ad6d16/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i[231089,231102] [2023-11-19 08:05:07,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:07,193 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:05:07,547 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_9e65d496-528b-4e3d-b172-9092f5ad6d16/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i[231089,231102] [2023-11-19 08:05:07,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:07,941 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:05:07,949 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:05:07,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:07 WrapperNode [2023-11-19 08:05:07,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:07,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:07,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:05:07,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:05:07,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:07" (1/1) ... [2023-11-19 08:05:08,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:07" (1/1) ... [2023-11-19 08:05:08,383 INFO L138 Inliner]: procedures = 206, calls = 3189, calls flagged for inlining = 90, calls inlined = 82, statements flattened = 8855 [2023-11-19 08:05:08,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:08,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:05:08,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:05:08,385 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:05:08,394 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:07" (1/1) ... [2023-11-19 08:05:08,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:07" (1/1) ... [2023-11-19 08:05:08,432 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:07" (1/1) ... [2023-11-19 08:05:08,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:07" (1/1) ... [2023-11-19 08:05:08,695 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:07" (1/1) ... [2023-11-19 08:05:08,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:07" (1/1) ... [2023-11-19 08:05:08,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:07" (1/1) ... [2023-11-19 08:05:08,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:07" (1/1) ... [2023-11-19 08:05:08,853 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:05:08,854 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:05:08,854 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:05:08,855 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:05:08,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:07" (1/1) ... [2023-11-19 08:05:08,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:08,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e65d496-528b-4e3d-b172-9092f5ad6d16/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:08,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e65d496-528b-4e3d-b172-9092f5ad6d16/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:05:08,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e65d496-528b-4e3d-b172-9092f5ad6d16/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:05:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_read_value [2023-11-19 08:05:08,993 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_read_value [2023-11-19 08:05:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2023-11-19 08:05:08,993 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2023-11-19 08:05:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_detect [2023-11-19 08:05:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_detect [2023-11-19 08:05:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2023-11-19 08:05:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2023-11-19 08:05:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure store_beep [2023-11-19 08:05:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure store_beep [2023-11-19 08:05:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 08:05:08,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 08:05:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure store_pwm [2023-11-19 08:05:08,995 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pwm [2023-11-19 08:05:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_min [2023-11-19 08:05:08,997 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_min [2023-11-19 08:05:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_div [2023-11-19 08:05:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_div [2023-11-19 08:05:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_FROM_REG [2023-11-19 08:05:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_FROM_REG [2023-11-19 08:05:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 08:05:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 08:05:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 08:05:08,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 08:05:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-19 08:05:08,999 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-19 08:05:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure show_sensor [2023-11-19 08:05:09,000 INFO L138 BoogieDeclarations]: Found implementation of procedure show_sensor [2023-11-19 08:05:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 08:05:09,000 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 08:05:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2023-11-19 08:05:09,001 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2023-11-19 08:05:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:05:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 08:05:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_max_hyst [2023-11-19 08:05:09,002 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_max_hyst [2023-11-19 08:05:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2023-11-19 08:05:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2023-11-19 08:05:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2023-11-19 08:05:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2023-11-19 08:05:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2023-11-19 08:05:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2023-11-19 08:05:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_isa_unregister [2023-11-19 08:05:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_isa_unregister [2023-11-19 08:05:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2023-11-19 08:05:09,005 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2023-11-19 08:05:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:05:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure show_beep [2023-11-19 08:05:09,005 INFO L138 BoogieDeclarations]: Found implementation of procedure show_beep [2023-11-19 08:05:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2023-11-19 08:05:09,005 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2023-11-19 08:05:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:05:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 08:05:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2023-11-19 08:05:09,006 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2023-11-19 08:05:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 08:05:09,006 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 08:05:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-19 08:05:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-19 08:05:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm [2023-11-19 08:05:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm [2023-11-19 08:05:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2023-11-19 08:05:09,008 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2023-11-19 08:05:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-19 08:05:09,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-19 08:05:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure store_sensor [2023-11-19 08:05:09,008 INFO L138 BoogieDeclarations]: Found implementation of procedure store_sensor [2023-11-19 08:05:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_update_device [2023-11-19 08:05:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_update_device [2023-11-19 08:05:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_remove_files [2023-11-19 08:05:09,010 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_remove_files [2023-11-19 08:05:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2023-11-19 08:05:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2023-11-19 08:05:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-19 08:05:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-19 08:05:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_max [2023-11-19 08:05:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_max [2023-11-19 08:05:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2023-11-19 08:05:09,013 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2023-11-19 08:05:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2023-11-19 08:05:09,013 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2023-11-19 08:05:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_w83781d_data [2023-11-19 08:05:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_w83781d_data [2023-11-19 08:05:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:05:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-19 08:05:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-19 08:05:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2023-11-19 08:05:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2023-11-19 08:05:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2023-11-19 08:05:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2023-11-19 08:05:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2023-11-19 08:05:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2023-11-19 08:05:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2023-11-19 08:05:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2023-11-19 08:05:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:05:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_w83781d_data [2023-11-19 08:05:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_w83781d_data [2023-11-19 08:05:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 08:05:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 08:05:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2023-11-19 08:05:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2023-11-19 08:05:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 08:05:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 08:05:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_w83781d_data [2023-11-19 08:05:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_w83781d_data [2023-11-19 08:05:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_max [2023-11-19 08:05:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_max [2023-11-19 08:05:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_write_value [2023-11-19 08:05:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_write_value [2023-11-19 08:05:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:05:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2023-11-19 08:05:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2023-11-19 08:05:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:05:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_min [2023-11-19 08:05:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_min [2023-11-19 08:05:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:05:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_w83781d_data [2023-11-19 08:05:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_w83781d_data [2023-11-19 08:05:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2023-11-19 08:05:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2023-11-19 08:05:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max_hyst [2023-11-19 08:05:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max_hyst [2023-11-19 08:05:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2023-11-19 08:05:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2023-11-19 08:05:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 08:05:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 08:05:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:05:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2023-11-19 08:05:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2023-11-19 08:05:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:05:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:05:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 08:05:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 08:05:09,995 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:05:10,001 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:05:20,366 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:05:20,396 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:05:20,396 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:05:20,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:20 BoogieIcfgContainer [2023-11-19 08:05:20,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:05:20,419 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:05:20,420 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:05:20,424 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:05:20,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:05:04" (1/3) ... [2023-11-19 08:05:20,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dcc1ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:20, skipping insertion in model container [2023-11-19 08:05:20,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:07" (2/3) ... [2023-11-19 08:05:20,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dcc1ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:20, skipping insertion in model container [2023-11-19 08:05:20,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:20" (3/3) ... [2023-11-19 08:05:20,428 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i [2023-11-19 08:05:20,453 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:05:20,453 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:05:20,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:05:20,612 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;@3c3756c9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:05:20,613 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:05:20,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 2149 states, 1647 states have (on average 1.5415907710989678) internal successors, (2539), 1658 states have internal predecessors, (2539), 440 states have call successors, (440), 60 states have call predecessors, (440), 60 states have return successors, (440), 440 states have call predecessors, (440), 440 states have call successors, (440) [2023-11-19 08:05:20,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 08:05:20,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:20,673 INFO L195 NwaCegarLoop]: trace histogram [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 08:05:20,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:20,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:20,683 INFO L85 PathProgramCache]: Analyzing trace with hash 571759043, now seen corresponding path program 1 times [2023-11-19 08:05:20,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:20,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394786859] [2023-11-19 08:05:20,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:20,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:22,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 08:05:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:22,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:05:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:22,339 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 08:05:22,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:22,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394786859] [2023-11-19 08:05:22,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394786859] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:22,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:22,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:05:22,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192496234] [2023-11-19 08:05:22,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:22,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:05:22,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:22,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:05:22,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:05:22,405 INFO L87 Difference]: Start difference. First operand has 2149 states, 1647 states have (on average 1.5415907710989678) internal successors, (2539), 1658 states have internal predecessors, (2539), 440 states have call successors, (440), 60 states have call predecessors, (440), 60 states have return successors, (440), 440 states have call predecessors, (440), 440 states have call successors, (440) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:26,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:26,522 INFO L93 Difference]: Finished difference Result 6443 states and 10872 transitions. [2023-11-19 08:05:26,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:05:26,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2023-11-19 08:05:26,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:26,575 INFO L225 Difference]: With dead ends: 6443 [2023-11-19 08:05:26,575 INFO L226 Difference]: Without dead ends: 4289 [2023-11-19 08:05:26,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:05:26,622 INFO L413 NwaCegarLoop]: 3161 mSDtfsCounter, 3471 mSDsluCounter, 5400 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 966 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3732 SdHoareTripleChecker+Valid, 8561 SdHoareTripleChecker+Invalid, 2011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 966 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:26,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3732 Valid, 8561 Invalid, 2011 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [966 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-19 08:05:26,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4289 states. [2023-11-19 08:05:26,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4289 to 4253. [2023-11-19 08:05:26,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4253 states, 3265 states have (on average 1.5390505359877489) internal successors, (5025), 3276 states have internal predecessors, (5025), 869 states have call successors, (869), 119 states have call predecessors, (869), 118 states have return successors, (860), 859 states have call predecessors, (860), 860 states have call successors, (860) [2023-11-19 08:05:27,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 6754 transitions. [2023-11-19 08:05:27,017 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 6754 transitions. Word has length 34 [2023-11-19 08:05:27,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:27,017 INFO L495 AbstractCegarLoop]: Abstraction has 4253 states and 6754 transitions. [2023-11-19 08:05:27,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:27,018 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 6754 transitions. [2023-11-19 08:05:27,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 08:05:27,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:27,023 INFO L195 NwaCegarLoop]: trace histogram [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 08:05:27,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:05:27,024 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:27,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:27,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1291678411, now seen corresponding path program 1 times [2023-11-19 08:05:27,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:27,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520920132] [2023-11-19 08:05:27,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:27,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:27,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:05:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:27,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:05:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:27,970 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 08:05:27,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:27,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520920132] [2023-11-19 08:05:27,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520920132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:27,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:27,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:05:27,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749296023] [2023-11-19 08:05:27,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:27,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:05:27,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:27,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:05:27,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:05:27,979 INFO L87 Difference]: Start difference. First operand 4253 states and 6754 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:31,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:31,848 INFO L93 Difference]: Finished difference Result 12765 states and 20330 transitions. [2023-11-19 08:05:31,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:05:31,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2023-11-19 08:05:31,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:31,930 INFO L225 Difference]: With dead ends: 12765 [2023-11-19 08:05:31,930 INFO L226 Difference]: Without dead ends: 8515 [2023-11-19 08:05:31,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:05:31,968 INFO L413 NwaCegarLoop]: 3176 mSDtfsCounter, 3469 mSDsluCounter, 5393 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 964 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3729 SdHoareTripleChecker+Valid, 8569 SdHoareTripleChecker+Invalid, 2009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 964 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:31,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3729 Valid, 8569 Invalid, 2009 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [964 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-19 08:05:31,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8515 states. [2023-11-19 08:05:32,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8515 to 8463. [2023-11-19 08:05:32,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8463 states, 6501 states have (on average 1.538994000922935) internal successors, (10005), 6516 states have internal predecessors, (10005), 1725 states have call successors, (1725), 237 states have call predecessors, (1725), 236 states have return successors, (1716), 1713 states have call predecessors, (1716), 1716 states have call successors, (1716) [2023-11-19 08:05:32,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8463 states to 8463 states and 13446 transitions. [2023-11-19 08:05:32,552 INFO L78 Accepts]: Start accepts. Automaton has 8463 states and 13446 transitions. Word has length 32 [2023-11-19 08:05:32,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:32,553 INFO L495 AbstractCegarLoop]: Abstraction has 8463 states and 13446 transitions. [2023-11-19 08:05:32,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:32,553 INFO L276 IsEmpty]: Start isEmpty. Operand 8463 states and 13446 transitions. [2023-11-19 08:05:32,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 08:05:32,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:32,555 INFO L195 NwaCegarLoop]: trace histogram [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 08:05:32,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:05:32,556 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:32,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:32,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1008816185, now seen corresponding path program 1 times [2023-11-19 08:05:32,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:32,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686905766] [2023-11-19 08:05:32,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:32,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:33,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 08:05:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:33,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:05:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:33,254 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 08:05:33,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:33,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686905766] [2023-11-19 08:05:33,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686905766] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:33,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:33,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:05:33,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440337455] [2023-11-19 08:05:33,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:33,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:05:33,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:33,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:05:33,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:05:33,262 INFO L87 Difference]: Start difference. First operand 8463 states and 13446 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:37,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:37,300 INFO L93 Difference]: Finished difference Result 25407 states and 40480 transitions. [2023-11-19 08:05:37,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:05:37,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2023-11-19 08:05:37,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:37,475 INFO L225 Difference]: With dead ends: 25407 [2023-11-19 08:05:37,475 INFO L226 Difference]: Without dead ends: 16947 [2023-11-19 08:05:37,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:05:37,545 INFO L413 NwaCegarLoop]: 3195 mSDtfsCounter, 3465 mSDsluCounter, 5408 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3724 SdHoareTripleChecker+Valid, 8603 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 962 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:37,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3724 Valid, 8603 Invalid, 2007 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [962 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-19 08:05:37,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16947 states. [2023-11-19 08:05:38,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16947 to 16863. [2023-11-19 08:05:38,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16863 states, 12957 states have (on average 1.538704947132824) internal successors, (19937), 12980 states have internal predecessors, (19937), 3433 states have call successors, (3433), 473 states have call predecessors, (3433), 472 states have return successors, (3424), 3417 states have call predecessors, (3424), 3424 states have call successors, (3424) [2023-11-19 08:05:38,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16863 states to 16863 states and 26794 transitions. [2023-11-19 08:05:38,701 INFO L78 Accepts]: Start accepts. Automaton has 16863 states and 26794 transitions. Word has length 36 [2023-11-19 08:05:38,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:38,702 INFO L495 AbstractCegarLoop]: Abstraction has 16863 states and 26794 transitions. [2023-11-19 08:05:38,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:38,703 INFO L276 IsEmpty]: Start isEmpty. Operand 16863 states and 26794 transitions. [2023-11-19 08:05:38,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 08:05:38,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:38,707 INFO L195 NwaCegarLoop]: trace histogram [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 08:05:38,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:05:38,708 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:38,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:38,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1470152302, now seen corresponding path program 1 times [2023-11-19 08:05:38,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:38,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602025627] [2023-11-19 08:05:38,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:38,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:39,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:05:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:39,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 08:05:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:39,360 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 08:05:39,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:39,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602025627] [2023-11-19 08:05:39,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602025627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:39,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:39,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:05:39,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767803518] [2023-11-19 08:05:39,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:39,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:05:39,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:39,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:05:39,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:05:39,364 INFO L87 Difference]: Start difference. First operand 16863 states and 26794 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:05:43,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:43,649 INFO L93 Difference]: Finished difference Result 50663 states and 80728 transitions. [2023-11-19 08:05:43,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:05:43,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2023-11-19 08:05:43,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:43,838 INFO L225 Difference]: With dead ends: 50663 [2023-11-19 08:05:43,838 INFO L226 Difference]: Without dead ends: 33803 [2023-11-19 08:05:43,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:05:43,937 INFO L413 NwaCegarLoop]: 3197 mSDtfsCounter, 3477 mSDsluCounter, 5430 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3750 SdHoareTripleChecker+Valid, 8627 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 962 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:43,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3750 Valid, 8627 Invalid, 2003 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [962 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-19 08:05:43,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33803 states.