./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--max16065.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c39910c-4542-4a62-9750-fe90da225b7d/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c39910c-4542-4a62-9750-fe90da225b7d/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c39910c-4542-4a62-9750-fe90da225b7d/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c39910c-4542-4a62-9750-fe90da225b7d/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c39910c-4542-4a62-9750-fe90da225b7d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c39910c-4542-4a62-9750-fe90da225b7d/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1ad6d1ed8310d8e3264189ac87472d58c77647a0c63d75779b5974e889987542 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:48:39,918 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:48:40,015 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c39910c-4542-4a62-9750-fe90da225b7d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-13 23:48:40,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:48:40,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:48:40,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:48:40,062 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:48:40,062 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:48:40,063 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:48:40,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:48:40,064 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:48:40,064 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:48:40,064 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:48:40,065 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:48:40,065 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:48:40,066 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:48:40,066 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:48:40,066 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:48:40,066 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:48:40,067 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:48:40,067 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:48:40,067 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:48:40,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:48:40,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:48:40,068 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:48:40,068 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:48:40,068 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:48:40,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:48:40,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:48:40,069 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:48:40,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:48:40,069 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:48:40,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:48:40,069 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:48:40,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:48:40,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:48:40,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:48:40,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:48:40,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:48:40,071 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:48:40,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:48:40,071 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:48:40,072 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:48:40,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:48:40,072 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_6c39910c-4542-4a62-9750-fe90da225b7d/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ad6d1ed8310d8e3264189ac87472d58c77647a0c63d75779b5974e889987542 [2024-11-13 23:48:40,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:48:40,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:48:40,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:48:40,442 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:48:40,443 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:48:40,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c39910c-4542-4a62-9750-fe90da225b7d/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i Unable to find full path for "g++" [2024-11-13 23:48:42,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:48:43,461 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:48:43,463 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c39910c-4542-4a62-9750-fe90da225b7d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2024-11-13 23:48:43,534 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c39910c-4542-4a62-9750-fe90da225b7d/bin/utaipan-verify-sOmjnqqW8E/data/80822831c/81e71ee8560d41d98d7c0396c65635c4/FLAG5a385a330 [2024-11-13 23:48:43,563 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c39910c-4542-4a62-9750-fe90da225b7d/bin/utaipan-verify-sOmjnqqW8E/data/80822831c/81e71ee8560d41d98d7c0396c65635c4 [2024-11-13 23:48:43,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:48:43,572 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:48:43,575 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:48:43,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:48:43,582 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:48:43,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:48:43" (1/1) ... [2024-11-13 23:48:43,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50af6e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:48:43, skipping insertion in model container [2024-11-13 23:48:43,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:48:43" (1/1) ... [2024-11-13 23:48:43,723 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:48:44,946 WARN L250 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_6c39910c-4542-4a62-9750-fe90da225b7d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i[168201,168214] [2024-11-13 23:48:45,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:48:45,237 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:48:45,611 WARN L250 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_6c39910c-4542-4a62-9750-fe90da225b7d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i[168201,168214] [2024-11-13 23:48:45,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:48:45,995 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:48:45,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:48:45 WrapperNode [2024-11-13 23:48:45,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:48:45,998 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:48:45,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:48:45,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:48:46,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:48:45" (1/1) ... [2024-11-13 23:48:46,102 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:48:45" (1/1) ... [2024-11-13 23:48:46,394 INFO L138 Inliner]: procedures = 117, calls = 2153, calls flagged for inlining = 45, calls inlined = 37, statements flattened = 5752 [2024-11-13 23:48:46,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:48:46,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:48:46,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:48:46,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:48:46,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:48:45" (1/1) ... [2024-11-13 23:48:46,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:48:45" (1/1) ... [2024-11-13 23:48:46,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:48:45" (1/1) ... [2024-11-13 23:48:46,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:48:45" (1/1) ... [2024-11-13 23:48:46,635 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:48:45" (1/1) ... [2024-11-13 23:48:46,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:48:45" (1/1) ... [2024-11-13 23:48:46,699 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:48:45" (1/1) ... [2024-11-13 23:48:46,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:48:45" (1/1) ... [2024-11-13 23:48:46,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:48:46,760 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:48:46,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:48:46,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:48:46,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:48:45" (1/1) ... [2024-11-13 23:48:46,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:48:46,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c39910c-4542-4a62-9750-fe90da225b7d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:48:46,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c39910c-4542-4a62-9750-fe90da225b7d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:48:46,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c39910c-4542-4a62-9750-fe90da225b7d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:48:46,847 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_set_limit [2024-11-13 23:48:46,847 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_set_limit [2024-11-13 23:48:46,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-13 23:48:46,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-13 23:48:46,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 23:48:46,848 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2024-11-13 23:48:46,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2024-11-13 23:48:46,848 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2024-11-13 23:48:46,848 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2024-11-13 23:48:46,849 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_show_limit [2024-11-13 23:48:46,849 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_show_limit [2024-11-13 23:48:46,849 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_update_device [2024-11-13 23:48:46,849 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_update_device [2024-11-13 23:48:46,849 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_show_input [2024-11-13 23:48:46,849 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_show_input [2024-11-13 23:48:46,850 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_read_adc [2024-11-13 23:48:46,851 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_read_adc [2024-11-13 23:48:46,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-13 23:48:46,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-13 23:48:46,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_max16065_data [2024-11-13 23:48:46,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_max16065_data [2024-11-13 23:48:46,851 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_show_alarm [2024-11-13 23:48:46,851 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_show_alarm [2024-11-13 23:48:46,851 INFO L130 BoogieDeclarations]: Found specification of procedure LIMIT_TO_MV [2024-11-13 23:48:46,852 INFO L138 BoogieDeclarations]: Found implementation of procedure LIMIT_TO_MV [2024-11-13 23:48:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 23:48:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-13 23:48:46,852 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-13 23:48:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-13 23:48:46,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-13 23:48:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-13 23:48:46,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-13 23:48:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 23:48:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-13 23:48:46,852 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-13 23:48:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:48:46,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 23:48:46,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 23:48:46,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_max16065_data [2024-11-13 23:48:46,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_max16065_data [2024-11-13 23:48:46,853 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2024-11-13 23:48:46,853 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2024-11-13 23:48:46,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 23:48:46,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 23:48:46,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 23:48:46,853 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_cleanup [2024-11-13 23:48:46,853 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_cleanup [2024-11-13 23:48:46,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:48:46,853 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2024-11-13 23:48:46,853 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2024-11-13 23:48:46,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:48:46,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:48:46,854 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_file [2024-11-13 23:48:46,854 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_file [2024-11-13 23:48:46,854 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-13 23:48:46,854 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-13 23:48:47,930 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:48:47,933 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:49:15,470 INFO L? ?]: Removed 881 outVars from TransFormulas that were not future-live. [2024-11-13 23:49:15,471 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:49:20,770 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:49:20,770 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-13 23:49:20,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:49:20 BoogieIcfgContainer [2024-11-13 23:49:20,771 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:49:20,774 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:49:20,774 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:49:20,779 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:49:20,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:48:43" (1/3) ... [2024-11-13 23:49:20,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3854ee34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:49:20, skipping insertion in model container [2024-11-13 23:49:20,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:48:45" (2/3) ... [2024-11-13 23:49:20,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3854ee34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:49:20, skipping insertion in model container [2024-11-13 23:49:20,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:49:20" (3/3) ... [2024-11-13 23:49:20,783 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2024-11-13 23:49:20,800 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:49:20,802 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i that has 22 procedures, 875 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-11-13 23:49:20,906 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:49:20,920 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@780fb075, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:49:20,921 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:49:20,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 875 states, 670 states have (on average 1.6761194029850746) internal successors, (1123), 677 states have internal predecessors, (1123), 182 states have call successors, (182), 21 states have call predecessors, (182), 21 states have return successors, (182), 182 states have call predecessors, (182), 182 states have call successors, (182) [2024-11-13 23:49:20,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 23:49:20,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:49:20,947 INFO L215 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] [2024-11-13 23:49:20,948 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:49:20,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:49:20,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1849466105, now seen corresponding path program 1 times [2024-11-13 23:49:20,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:49:20,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183266596] [2024-11-13 23:49:20,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:49:20,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:53:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:53:19,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:53:19,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:53:19,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183266596] [2024-11-13 23:53:19,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183266596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:53:19,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:53:19,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:53:19,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221921408] [2024-11-13 23:53:19,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:53:19,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:53:19,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:53:19,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:53:19,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:53:19,738 INFO L87 Difference]: Start difference. First operand has 875 states, 670 states have (on average 1.6761194029850746) internal successors, (1123), 677 states have internal predecessors, (1123), 182 states have call successors, (182), 21 states have call predecessors, (182), 21 states have return successors, (182), 182 states have call predecessors, (182), 182 states have call successors, (182) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-11-13 23:53:22,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:53:23,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:53:23,422 INFO L93 Difference]: Finished difference Result 2616 states and 4611 transitions. [2024-11-13 23:53:23,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:53:23,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 29 [2024-11-13 23:53:23,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:53:23,453 INFO L225 Difference]: With dead ends: 2616 [2024-11-13 23:53:23,454 INFO L226 Difference]: Without dead ends: 1738 [2024-11-13 23:53:23,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:53:23,469 INFO L432 NwaCegarLoop]: 1354 mSDtfsCounter, 1462 mSDsluCounter, 1350 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:53:23,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 2704 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 253 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2024-11-13 23:53:23,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2024-11-13 23:53:23,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1725. [2024-11-13 23:53:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1327 states have (on average 1.6744536548605877) internal successors, (2222), 1332 states have internal predecessors, (2222), 357 states have call successors, (357), 41 states have call predecessors, (357), 40 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2024-11-13 23:53:23,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2930 transitions. [2024-11-13 23:53:23,722 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2930 transitions. Word has length 29 [2024-11-13 23:53:23,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:53:23,725 INFO L471 AbstractCegarLoop]: Abstraction has 1725 states and 2930 transitions. [2024-11-13 23:53:23,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-11-13 23:53:23,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2930 transitions. [2024-11-13 23:53:23,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-13 23:53:23,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:53:23,732 INFO L215 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] [2024-11-13 23:53:23,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:53:23,732 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:53:23,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:53:23,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1968907502, now seen corresponding path program 1 times [2024-11-13 23:53:23,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:53:23,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838698027] [2024-11-13 23:53:23,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:53:23,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:57:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:57:34,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:57:34,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:57:34,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838698027] [2024-11-13 23:57:34,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838698027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:57:34,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:57:34,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:57:34,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624481462] [2024-11-13 23:57:34,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:57:34,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:57:34,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:57:34,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:57:34,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:57:34,268 INFO L87 Difference]: Start difference. First operand 1725 states and 2930 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2024-11-13 23:57:36,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:57:38,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:57:38,209 INFO L93 Difference]: Finished difference Result 5164 states and 8772 transitions. [2024-11-13 23:57:38,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:57:38,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 30 [2024-11-13 23:57:38,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:57:38,241 INFO L225 Difference]: With dead ends: 5164 [2024-11-13 23:57:38,241 INFO L226 Difference]: Without dead ends: 3440 [2024-11-13 23:57:38,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:57:38,253 INFO L432 NwaCegarLoop]: 1360 mSDtfsCounter, 1459 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 2709 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:57:38,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 2709 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 252 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2024-11-13 23:57:38,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3440 states. [2024-11-13 23:57:38,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3440 to 3427. [2024-11-13 23:57:38,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3427 states, 2640 states have (on average 1.6742424242424243) internal successors, (4420), 2645 states have internal predecessors, (4420), 706 states have call successors, (706), 81 states have call predecessors, (706), 80 states have return successors, (700), 700 states have call predecessors, (700), 700 states have call successors, (700) [2024-11-13 23:57:38,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 5826 transitions. [2024-11-13 23:57:38,512 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 5826 transitions. Word has length 30 [2024-11-13 23:57:38,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:57:38,512 INFO L471 AbstractCegarLoop]: Abstraction has 3427 states and 5826 transitions. [2024-11-13 23:57:38,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2024-11-13 23:57:38,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 5826 transitions. [2024-11-13 23:57:38,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-13 23:57:38,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:57:38,518 INFO L215 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] [2024-11-13 23:57:38,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 23:57:38,519 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:57:38,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:57:38,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1080302833, now seen corresponding path program 1 times [2024-11-13 23:57:38,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:57:38,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327223694] [2024-11-13 23:57:38,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:57:38,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 00:01:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:01:37,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 00:01:37,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 00:01:37,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327223694] [2024-11-14 00:01:37,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327223694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:01:37,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:01:37,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 00:01:37,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976643022] [2024-11-14 00:01:37,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:01:37,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 00:01:37,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 00:01:37,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 00:01:37,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 00:01:37,039 INFO L87 Difference]: Start difference. First operand 3427 states and 5826 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 00:01:39,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 00:01:40,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:01:40,539 INFO L93 Difference]: Finished difference Result 10246 states and 17418 transitions. [2024-11-14 00:01:40,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 00:01:40,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2024-11-14 00:01:40,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:01:40,601 INFO L225 Difference]: With dead ends: 10246 [2024-11-14 00:01:40,601 INFO L226 Difference]: Without dead ends: 6820 [2024-11-14 00:01:40,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 00:01:40,623 INFO L432 NwaCegarLoop]: 1367 mSDtfsCounter, 1454 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-14 00:01:40,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 2713 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2024-11-14 00:01:40,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6820 states. [2024-11-14 00:01:41,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6820 to 6807. [2024-11-14 00:01:41,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6807 states, 5248 states have (on average 1.673780487804878) internal successors, (8784), 5253 states have internal predecessors, (8784), 1398 states have call successors, (1398), 161 states have call predecessors, (1398), 160 states have return successors, (1392), 1392 states have call predecessors, (1392), 1392 states have call successors, (1392) [2024-11-14 00:01:41,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6807 states to 6807 states and 11574 transitions. [2024-11-14 00:01:41,095 INFO L78 Accepts]: Start accepts. Automaton has 6807 states and 11574 transitions. Word has length 31 [2024-11-14 00:01:41,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:01:41,095 INFO L471 AbstractCegarLoop]: Abstraction has 6807 states and 11574 transitions. [2024-11-14 00:01:41,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 00:01:41,096 INFO L276 IsEmpty]: Start isEmpty. Operand 6807 states and 11574 transitions. [2024-11-14 00:01:41,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 00:01:41,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:01:41,098 INFO L215 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] [2024-11-14 00:01:41,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 00:01:41,098 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:01:41,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:01:41,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1798713821, now seen corresponding path program 1 times [2024-11-14 00:01:41,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 00:01:41,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359374614] [2024-11-14 00:01:41,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:01:41,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms