./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.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_18d76e67-8ba7-4408-a273-af693ce2a356/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d76e67-8ba7-4408-a273-af693ce2a356/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_18d76e67-8ba7-4408-a273-af693ce2a356/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d76e67-8ba7-4408-a273-af693ce2a356/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d76e67-8ba7-4408-a273-af693ce2a356/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_18d76e67-8ba7-4408-a273-af693ce2a356/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 d88455bf5089be24833f69dfcbd91003e7e136bcd5efcd63ae18e59d7f59e87d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:02:19,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:02:19,915 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d76e67-8ba7-4408-a273-af693ce2a356/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 21:02:19,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:02:19,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:02:19,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:02:19,958 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:02:19,959 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:02:19,961 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:02:19,967 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:02:19,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:02:19,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:02:19,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:02:19,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:02:19,971 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:02:19,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:02:19,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:02:19,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:02:19,974 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:02:19,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:02:19,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:02:19,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:02:19,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:02:19,976 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:02:19,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:02:19,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:02:19,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:02:19,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:02:19,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:02:19,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:02:19,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:02:19,981 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:02:19,981 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:02:19,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:02:19,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:02:19,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:02:19,982 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:02:19,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:02:19,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:02:19,983 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_18d76e67-8ba7-4408-a273-af693ce2a356/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d76e67-8ba7-4408-a273-af693ce2a356/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d88455bf5089be24833f69dfcbd91003e7e136bcd5efcd63ae18e59d7f59e87d [2023-11-21 21:02:20,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:02:20,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:02:20,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:02:20,325 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:02:20,326 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:02:20,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d76e67-8ba7-4408-a273-af693ce2a356/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i [2023-11-21 21:02:23,317 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:02:24,074 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:02:24,075 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d76e67-8ba7-4408-a273-af693ce2a356/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i [2023-11-21 21:02:24,136 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d76e67-8ba7-4408-a273-af693ce2a356/bin/uautomizer-verify-bycVGegfSx/data/233123f13/5eca24920ed144db9da1e4ed56ef3eda/FLAG04c4e2298 [2023-11-21 21:02:24,154 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d76e67-8ba7-4408-a273-af693ce2a356/bin/uautomizer-verify-bycVGegfSx/data/233123f13/5eca24920ed144db9da1e4ed56ef3eda [2023-11-21 21:02:24,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:02:24,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:02:24,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:24,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:02:24,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:02:24,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:24" (1/1) ... [2023-11-21 21:02:24,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39cf9aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:24, skipping insertion in model container [2023-11-21 21:02:24,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:24" (1/1) ... [2023-11-21 21:02:24,381 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:02:25,514 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_18d76e67-8ba7-4408-a273-af693ce2a356/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i[205251,205264] [2023-11-21 21:02:26,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:26,844 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:02:26,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [7017-7018] [2023-11-21 21:02:27,043 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_18d76e67-8ba7-4408-a273-af693ce2a356/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i[205251,205264] [2023-11-21 21:02:27,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:27,382 WARN L675 CHandler]: The function __VERIFIER_nondet_u32 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:02:27,390 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:02:27,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27 WrapperNode [2023-11-21 21:02:27,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:27,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:27,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:02:27,393 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:02:27,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27" (1/1) ... [2023-11-21 21:02:27,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27" (1/1) ... [2023-11-21 21:02:27,788 INFO L138 Inliner]: procedures = 239, calls = 3162, calls flagged for inlining = 111, calls inlined = 96, statements flattened = 6029 [2023-11-21 21:02:27,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:27,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:02:27,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:02:27,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:02:27,801 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27" (1/1) ... [2023-11-21 21:02:27,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27" (1/1) ... [2023-11-21 21:02:27,869 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27" (1/1) ... [2023-11-21 21:02:29,013 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memset is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 21:02:29,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27" (1/1) ... [2023-11-21 21:02:29,014 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27" (1/1) ... [2023-11-21 21:02:29,204 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27" (1/1) ... [2023-11-21 21:02:29,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27" (1/1) ... [2023-11-21 21:02:29,320 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27" (1/1) ... [2023-11-21 21:02:29,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27" (1/1) ... [2023-11-21 21:02:29,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:02:29,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:02:29,410 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:02:29,410 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:02:29,412 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27" (1/1) ... [2023-11-21 21:02:29,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:02:29,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d76e67-8ba7-4408-a273-af693ce2a356/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:29,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d76e67-8ba7-4408-a273-af693ce2a356/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:29,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d76e67-8ba7-4408-a273-af693ce2a356/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:02:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure at76_hw_scan [2023-11-21 21:02:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_hw_scan [2023-11-21 21:02:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure at76_dfu_get_status [2023-11-21 21:02:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_dfu_get_status [2023-11-21 21:02:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure at76_join [2023-11-21 21:02:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_join [2023-11-21 21:02:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-21 21:02:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-21 21:02:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 21:02:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 21:02:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 21:02:29,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 21:02:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2023-11-21 21:02:29,491 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2023-11-21 21:02:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure at76_submit_rx_urb [2023-11-21 21:02:29,492 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_submit_rx_urb [2023-11-21 21:02:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure at76_add_interface [2023-11-21 21:02:29,492 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_add_interface [2023-11-21 21:02:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_timeout [2023-11-21 21:02:29,492 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_timeout [2023-11-21 21:02:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 21:02:29,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 21:02:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-11-21 21:02:29,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-11-21 21:02:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure at76_bss_info_changed [2023-11-21 21:02:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_bss_info_changed [2023-11-21 21:02:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2023-11-21 21:02:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2023-11-21 21:02:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure at76_wait_completion [2023-11-21 21:02:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_wait_completion [2023-11-21 21:02:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 21:02:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 21:02:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-21 21:02:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-21 21:02:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 21:02:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 21:02:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 21:02:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 21:02:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 21:02:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 21:02:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:02:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-21 21:02:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-21 21:02:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 21:02:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-11-21 21:02:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-11-21 21:02:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure at76_delete_device [2023-11-21 21:02:29,499 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_delete_device [2023-11-21 21:02:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2023-11-21 21:02:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_mib [2023-11-21 21:02:29,499 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_mib [2023-11-21 21:02:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_radio [2023-11-21 21:02:29,499 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_radio [2023-11-21 21:02:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:02:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 21:02:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 21:02:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 21:02:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure led_trigger_event [2023-11-21 21:02:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure led_trigger_event [2023-11-21 21:02:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_card_command [2023-11-21 21:02:29,501 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_card_command [2023-11-21 21:02:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_cmd_status [2023-11-21 21:02:29,502 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_cmd_status [2023-11-21 21:02:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 21:02:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 21:02:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-11-21 21:02:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-11-21 21:02:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-21 21:02:29,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-21 21:02:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 21:02:29,504 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 21:02:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2023-11-21 21:02:29,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2023-11-21 21:02:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-21 21:02:29,505 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-21 21:02:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-21 21:02:29,506 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-21 21:02:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-21 21:02:29,506 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-21 21:02:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_mib [2023-11-21 21:02:29,506 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_mib [2023-11-21 21:02:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-21 21:02:29,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-21 21:02:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 21:02:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-21 21:02:29,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-21 21:02:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 21:02:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_pm_mode [2023-11-21 21:02:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_pm_mode [2023-11-21 21:02:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-21 21:02:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-21 21:02:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_key [2023-11-21 21:02:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_key [2023-11-21 21:02:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure at76_is_505a [2023-11-21 21:02:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_is_505a [2023-11-21 21:02:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 21:02:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_hw_cfg [2023-11-21 21:02:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_hw_cfg [2023-11-21 21:02:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure at76_config [2023-11-21 21:02:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_config [2023-11-21 21:02:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-21 21:02:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-21 21:02:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 21:02:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 21:02:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-11-21 21:02:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-11-21 21:02:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-21 21:02:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-21 21:02:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-11-21 21:02:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-11-21 21:02:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-21 21:02:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-21 21:02:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_op_mode [2023-11-21 21:02:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_op_mode [2023-11-21 21:02:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure at76_remove_interface [2023-11-21 21:02:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_remove_interface [2023-11-21 21:02:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2023-11-21 21:02:29,514 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2023-11-21 21:02:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 21:02:29,514 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 21:02:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 21:02:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 21:02:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 21:02:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_name [2023-11-21 21:02:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_name [2023-11-21 21:02:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-21 21:02:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-21 21:02:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 21:02:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure at76_start_monitor [2023-11-21 21:02:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_start_monitor [2023-11-21 21:02:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_stop_queues [2023-11-21 21:02:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_stop_queues [2023-11-21 21:02:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-21 21:02:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-21 21:02:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:02:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-11-21 21:02:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-11-21 21:02:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 21:02:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-21 21:02:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-21 21:02:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-21 21:02:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-21 21:02:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-21 21:02:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-21 21:02:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-21 21:02:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-21 21:02:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure at76_configure_filter [2023-11-21 21:02:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_configure_filter [2023-11-21 21:02:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-21 21:02:29,523 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-21 21:02:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_work [2023-11-21 21:02:29,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_work [2023-11-21 21:02:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-11-21 21:02:29,525 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-11-21 21:02:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 21:02:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure at76_mac80211_tx [2023-11-21 21:02:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_mac80211_tx [2023-11-21 21:02:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:02:29,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:02:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2023-11-21 21:02:29,534 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2023-11-21 21:02:30,330 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:02:30,336 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:02:30,805 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 21:02:41,793 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:02:44,741 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:02:44,741 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 21:02:44,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:44 BoogieIcfgContainer [2023-11-21 21:02:44,744 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:02:44,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:02:44,747 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:02:44,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:02:44,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:02:24" (1/3) ... [2023-11-21 21:02:44,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718d69b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:44, skipping insertion in model container [2023-11-21 21:02:44,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27" (2/3) ... [2023-11-21 21:02:44,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718d69b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:44, skipping insertion in model container [2023-11-21 21:02:44,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:44" (3/3) ... [2023-11-21 21:02:44,755 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i [2023-11-21 21:02:44,775 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:02:44,775 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 21:02:44,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:02:44,884 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;@129dc065, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:02:44,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 21:02:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 1378 states, 880 states have (on average 1.3386363636363636) internal successors, (1178), 904 states have internal predecessors, (1178), 425 states have call successors, (425), 72 states have call predecessors, (425), 71 states have return successors, (420), 419 states have call predecessors, (420), 420 states have call successors, (420) [2023-11-21 21:02:44,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-21 21:02:44,923 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:44,924 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-21 21:02:44,925 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:02:44,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:44,932 INFO L85 PathProgramCache]: Analyzing trace with hash -984974461, now seen corresponding path program 1 times [2023-11-21 21:02:44,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:44,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037834511] [2023-11-21 21:02:44,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:44,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:46,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:02:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:46,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 21:02:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:46,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 21:02:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:46,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 21:02:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:46,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 21:02:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:46,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 21:02:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:46,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 21:02:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:46,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 21:02:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:46,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 21:02:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:46,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-21 21:02:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:46,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 21:02:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:46,491 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-21 21:02:46,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:46,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037834511] [2023-11-21 21:02:46,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037834511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:46,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:46,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:46,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812845998] [2023-11-21 21:02:46,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:46,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 21:02:46,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:46,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 21:02:46,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 21:02:46,539 INFO L87 Difference]: Start difference. First operand has 1378 states, 880 states have (on average 1.3386363636363636) internal successors, (1178), 904 states have internal predecessors, (1178), 425 states have call successors, (425), 72 states have call predecessors, (425), 71 states have return successors, (420), 419 states have call predecessors, (420), 420 states have call successors, (420) Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-21 21:03:00,122 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 21:03:02,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:03:04,157 WARN L539 Checker$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 21:03:06,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:03:08,176 WARN L539 Checker$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 21:03:11,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:03:13,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []