./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-gp8psk.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-gp8psk.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx --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 9a594b783fcfe5d510684b509ba23f3f5c69273a3da508f465e3e0725cd18344 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:14:04,544 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:14:04,627 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:14:04,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:14:04,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:14:04,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:14:04,660 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:14:04,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:14:04,662 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:14:04,663 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:14:04,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:14:04,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:14:04,665 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:14:04,665 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:14:04,666 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:14:04,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:14:04,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:14:04,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:14:04,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:14:04,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:14:04,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:14:04,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:14:04,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:14:04,671 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:14:04,671 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:14:04,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:14:04,672 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:14:04,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:14:04,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:14:04,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:14:04,674 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:14:04,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:14:04,675 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:14:04,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:14:04,676 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:14:04,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:14:04,677 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:14:04,677 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:14:04,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:14:04,678 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_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a594b783fcfe5d510684b509ba23f3f5c69273a3da508f465e3e0725cd18344 [2023-11-21 22:14:04,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:14:04,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:14:04,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:14:04,971 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:14:04,971 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:14:04,973 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-gp8psk.ko-entry_point.cil.out.i [2023-11-21 22:14:07,978 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:14:08,575 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:14:08,576 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-gp8psk.ko-entry_point.cil.out.i [2023-11-21 22:14:08,621 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx/data/514609da6/90d1272420ec46a4a8055b1db9b3bbd7/FLAG3efb5e1fe [2023-11-21 22:14:08,636 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx/data/514609da6/90d1272420ec46a4a8055b1db9b3bbd7 [2023-11-21 22:14:08,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:14:08,640 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:14:08,641 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:14:08,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:14:08,647 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:14:08,647 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:14:08" (1/1) ... [2023-11-21 22:14:08,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d0715e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:08, skipping insertion in model container [2023-11-21 22:14:08,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:14:08" (1/1) ... [2023-11-21 22:14:08,770 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:14:09,453 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6679] [2023-11-21 22:14:09,453 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6680-6681] [2023-11-21 22:14:09,568 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_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-gp8psk.ko-entry_point.cil.out.i[194974,194987] [2023-11-21 22:14:10,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:14:10,269 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:14:10,467 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6679] [2023-11-21 22:14:10,468 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6680-6681] [2023-11-21 22:14:10,482 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_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-gp8psk.ko-entry_point.cil.out.i[194974,194987] [2023-11-21 22:14:10,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:14:10,816 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:14:10,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:10 WrapperNode [2023-11-21 22:14:10,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:14:10,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:14:10,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:14:10,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:14:10,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:10" (1/1) ... [2023-11-21 22:14:10,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:10" (1/1) ... [2023-11-21 22:14:11,030 INFO L138 Inliner]: procedures = 128, calls = 1107, calls flagged for inlining = 38, calls inlined = 34, statements flattened = 2033 [2023-11-21 22:14:11,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:14:11,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:14:11,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:14:11,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:14:11,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:10" (1/1) ... [2023-11-21 22:14:11,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:10" (1/1) ... [2023-11-21 22:14:11,064 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:10" (1/1) ... [2023-11-21 22:14:11,210 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memcpy is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:14:11,211 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:10" (1/1) ... [2023-11-21 22:14:11,212 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:10" (1/1) ... [2023-11-21 22:14:11,320 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:10" (1/1) ... [2023-11-21 22:14:11,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:10" (1/1) ... [2023-11-21 22:14:11,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:10" (1/1) ... [2023-11-21 22:14:11,406 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:10" (1/1) ... [2023-11-21 22:14:11,431 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:14:11,437 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:14:11,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:14:11,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:14:11,439 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:10" (1/1) ... [2023-11-21 22:14:11,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:14:11,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:11,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:14:11,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179eb0b4-a4e8-4515-b1e0-c8ea6f1eda37/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:14:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_read_unc_blocks [2023-11-21 22:14:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_read_unc_blocks [2023-11-21 22:14:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_set_frontend [2023-11-21 22:14:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_set_frontend [2023-11-21 22:14:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:14:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:14:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:14:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 22:14:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 22:14:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:14:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_set_voltage [2023-11-21 22:14:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_set_voltage [2023-11-21 22:14:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_usb_in_op [2023-11-21 22:14:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_usb_in_op [2023-11-21 22:14:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 22:14:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 22:14:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-21 22:14:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-21 22:14:11,589 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_update_status [2023-11-21 22:14:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_update_status [2023-11-21 22:14:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_read_signal_strength [2023-11-21 22:14:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_read_signal_strength [2023-11-21 22:14:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:14:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:14:11,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-21 22:14:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-21 22:14:11,591 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-21 22:14:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-21 22:14:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 22:14:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 22:14:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:14:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 22:14:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 22:14:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_read_status [2023-11-21 22:14:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_read_status [2023-11-21 22:14:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:14:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:14:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:14:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:14:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_get_tune_settings [2023-11-21 22:14:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_get_tune_settings [2023-11-21 22:14:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:14:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:14:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_set_tone [2023-11-21 22:14:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_set_tone [2023-11-21 22:14:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:14:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_load_bcm4500fw [2023-11-21 22:14:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_load_bcm4500fw [2023-11-21 22:14:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:14:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:14:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:14:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_enable_high_lnb_voltage [2023-11-21 22:14:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_enable_high_lnb_voltage [2023-11-21 22:14:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:14:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-21 22:14:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-21 22:14:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_read_ber [2023-11-21 22:14:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_read_ber [2023-11-21 22:14:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_usb_out_op [2023-11-21 22:14:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_usb_out_op [2023-11-21 22:14:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:14:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_send_legacy_dish_cmd [2023-11-21 22:14:11,599 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_send_legacy_dish_cmd [2023-11-21 22:14:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:14:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:14:11,600 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:14:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_send_diseqc_burst [2023-11-21 22:14:11,600 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_send_diseqc_burst [2023-11-21 22:14:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:14:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_send_diseqc_msg [2023-11-21 22:14:11,600 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_send_diseqc_msg [2023-11-21 22:14:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 22:14:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-21 22:14:11,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-21 22:14:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:14:11,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:14:12,112 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:14:12,116 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:14:12,670 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 22:14:32,364 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:14:33,440 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:14:33,440 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:14:33,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:14:33 BoogieIcfgContainer [2023-11-21 22:14:33,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:14:33,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:14:33,449 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:14:33,452 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:14:33,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:14:08" (1/3) ... [2023-11-21 22:14:33,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3c7acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:14:33, skipping insertion in model container [2023-11-21 22:14:33,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:10" (2/3) ... [2023-11-21 22:14:33,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3c7acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:14:33, skipping insertion in model container [2023-11-21 22:14:33,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:14:33" (3/3) ... [2023-11-21 22:14:33,457 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-gp8psk.ko-entry_point.cil.out.i [2023-11-21 22:14:33,477 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:14:33,477 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:14:33,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:14:33,569 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;@63110fcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:14:33,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:14:33,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 466 states, 318 states have (on average 1.4276729559748427) internal successors, (454), 326 states have internal predecessors, (454), 117 states have call successors, (117), 30 states have call predecessors, (117), 29 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2023-11-21 22:14:33,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-21 22:14:33,616 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:33,617 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:33,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:14:33,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:33,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1837577113, now seen corresponding path program 1 times [2023-11-21 22:14:33,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:33,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035070774] [2023-11-21 22:14:33,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:33,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:36,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:14:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:36,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:14:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:36,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:14:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:36,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:14:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:36,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 22:14:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:36,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:14:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:36,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-21 22:14:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:36,759 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:14:36,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:36,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035070774] [2023-11-21 22:14:36,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035070774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:36,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:36,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:14:36,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577220046] [2023-11-21 22:14:36,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:36,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:14:36,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:36,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:14:36,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:14:36,835 INFO L87 Difference]: Start difference. First operand has 466 states, 318 states have (on average 1.4276729559748427) internal successors, (454), 326 states have internal predecessors, (454), 117 states have call successors, (117), 30 states have call predecessors, (117), 29 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-21 22:14:38,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:14:40,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:14:45,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:45,311 INFO L93 Difference]: Finished difference Result 1343 states and 1993 transitions. [2023-11-21 22:14:45,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:14:45,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2023-11-21 22:14:45,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:45,356 INFO L225 Difference]: With dead ends: 1343 [2023-11-21 22:14:45,356 INFO L226 Difference]: Without dead ends: 867 [2023-11-21 22:14:45,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:14:45,368 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 649 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 219 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:45,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 1239 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 756 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2023-11-21 22:14:45,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2023-11-21 22:14:45,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 846. [2023-11-21 22:14:45,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 585 states have (on average 1.4034188034188033) internal successors, (821), 587 states have internal predecessors, (821), 204 states have call successors, (204), 57 states have call predecessors, (204), 56 states have return successors, (203), 203 states have call predecessors, (203), 203 states have call successors, (203) [2023-11-21 22:14:45,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1228 transitions. [2023-11-21 22:14:45,519 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1228 transitions. Word has length 61 [2023-11-21 22:14:45,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:45,519 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 1228 transitions. [2023-11-21 22:14:45,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-21 22:14:45,520 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1228 transitions. [2023-11-21 22:14:45,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-21 22:14:45,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:45,527 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:45,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:14:45,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:14:45,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:45,528 INFO L85 PathProgramCache]: Analyzing trace with hash 418704465, now seen corresponding path program 1 times [2023-11-21 22:14:45,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:45,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791447295] [2023-11-21 22:14:45,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:45,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:48,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:14:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:48,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:14:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:48,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-21 22:14:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:48,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:14:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:48,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-21 22:14:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:48,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:14:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:48,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-21 22:14:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:48,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:14:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:48,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 22:14:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:48,880 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-21 22:14:48,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:48,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791447295] [2023-11-21 22:14:48,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791447295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:48,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:48,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:14:48,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030070288] [2023-11-21 22:14:48,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:48,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:14:48,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:48,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:14:48,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:14:48,885 INFO L87 Difference]: Start difference. First operand 846 states and 1228 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-21 22:14:50,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:14:52,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:14:55,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:14:58,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:58,054 INFO L93 Difference]: Finished difference Result 864 states and 1275 transitions. [2023-11-21 22:14:58,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:14:58,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 82 [2023-11-21 22:14:58,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:58,056 INFO L225 Difference]: With dead ends: 864 [2023-11-21 22:14:58,056 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 22:14:58,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:14:58,062 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 633 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 181 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:58,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 1164 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 599 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2023-11-21 22:14:58,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 22:14:58,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 22:14:58,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:58,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 22:14:58,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 82 [2023-11-21 22:14:58,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:58,065 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:14:58,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-21 22:14:58,065 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:14:58,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 22:14:58,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:14:58,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:14:58,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.