./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--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu/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--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 03d55f274509719e259063891bf7f51d6ae3645569d8243a0d7434c1b24ad753 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:47:56,841 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:47:56,908 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:47:56,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:47:56,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:47:56,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:47:56,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:47:56,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:47:56,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:47:56,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:47:56,944 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:47:56,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:47:56,945 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:47:56,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:47:56,946 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:47:56,947 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:47:56,948 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:47:56,948 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:47:56,949 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:47:56,949 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:47:56,950 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:47:56,950 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:47:56,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:47:56,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:47:56,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:47:56,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:56,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:47:56,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:47:56,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:47:56,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:47:56,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:47:56,955 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:47:56,956 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:47:56,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:47:56,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:47:56,956 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:47:56,957 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_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03d55f274509719e259063891bf7f51d6ae3645569d8243a0d7434c1b24ad753 [2023-11-19 07:47:57,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:47:57,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:47:57,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:47:57,239 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:47:57,239 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:47:57,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2023-11-19 07:48:00,410 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:48:01,056 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:48:01,057 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2023-11-19 07:48:01,108 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu/data/3da267541/7ef158db1a7c42cb92a76c8fe1c4343e/FLAG638c3207e [2023-11-19 07:48:01,132 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu/data/3da267541/7ef158db1a7c42cb92a76c8fe1c4343e [2023-11-19 07:48:01,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:48:01,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:48:01,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:01,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:48:01,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:48:01,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:01" (1/1) ... [2023-11-19 07:48:01,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9e4537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:01, skipping insertion in model container [2023-11-19 07:48:01,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:01" (1/1) ... [2023-11-19 07:48:01,308 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:02,267 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_df0870ba-d97d-4f39-82a9-e29b3b021981/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[206925,206938] [2023-11-19 07:48:02,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:03,000 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:48:03,315 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; incl %0": "+m" (v->counter)); [7172] [2023-11-19 07:48:03,317 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; decl %0": "+m" (v->counter)); [7179] [2023-11-19 07:48:03,328 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_df0870ba-d97d-4f39-82a9-e29b3b021981/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[206925,206938] [2023-11-19 07:48:03,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:03,679 WARN L675 CHandler]: The function __VERIFIER_nondet_u8 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:03,687 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:48:03,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03 WrapperNode [2023-11-19 07:48:03,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:03,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:03,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:48:03,690 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:48:03,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,882 INFO L138 Inliner]: procedures = 157, calls = 1237, calls flagged for inlining = 63, calls inlined = 51, statements flattened = 2444 [2023-11-19 07:48:03,883 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:03,884 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:48:03,884 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:48:03,884 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:48:03,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:04,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:04,073 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:04,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:04,107 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:04,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:48:04,131 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:48:04,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:48:04,132 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:48:04,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:04,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:04,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:04,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:48:04,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df0870ba-d97d-4f39-82a9-e29b3b021981/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:48:04,206 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-19 07:48:04,207 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-19 07:48:04,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2023-11-19 07:48:04,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2023-11-19 07:48:04,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:48:04,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:48:04,207 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:48:04,207 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-19 07:48:04,207 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-19 07:48:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-19 07:48:04,208 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-19 07:48:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:48:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:48:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-11-19 07:48:04,210 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-11-19 07:48:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:48:04,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:48:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:48:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-19 07:48:04,211 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-19 07:48:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-11-19 07:48:04,211 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-11-19 07:48:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_disconnect [2023-11-19 07:48:04,212 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_disconnect [2023-11-19 07:48:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 07:48:04,213 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 07:48:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 07:48:04,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 07:48:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:48:04,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:48:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 07:48:04,214 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 07:48:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2023-11-19 07:48:04,215 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2023-11-19 07:48:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_submit_rx_urb [2023-11-19 07:48:04,215 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_submit_rx_urb [2023-11-19 07:48:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-11-19 07:48:04,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-11-19 07:48:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:48:04,216 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:48:04,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:48:04,217 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-19 07:48:04,217 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-19 07:48:04,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:48:04,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:48:04,217 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 07:48:04,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 07:48:04,218 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-19 07:48:04,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-19 07:48:04,218 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-19 07:48:04,218 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-19 07:48:04,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:48:04,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:48:04,218 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-19 07:48:04,218 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-19 07:48:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:48:04,219 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:48:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:48:04,219 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:48:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:48:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-19 07:48:04,219 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-19 07:48:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:48:04,220 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-19 07:48:04,220 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-19 07:48:04,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:48:04,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:48:04,221 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_cmd_event_complete [2023-11-19 07:48:04,221 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_cmd_event_complete [2023-11-19 07:48:04,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:48:04,222 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-11-19 07:48:04,222 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-11-19 07:48:04,222 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2023-11-19 07:48:04,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2023-11-19 07:48:04,222 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-19 07:48:04,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-19 07:48:04,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:48:04,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:48:04,223 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:48:04,223 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:48:04,223 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 07:48:04,223 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 07:48:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 07:48:04,224 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 07:48:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-19 07:48:04,224 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-19 07:48:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 07:48:04,224 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 07:48:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:48:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_resume [2023-11-19 07:48:04,225 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_resume [2023-11-19 07:48:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-19 07:48:04,225 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-19 07:48:04,226 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-19 07:48:04,226 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-19 07:48:04,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:48:04,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2023-11-19 07:48:04,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 07:48:04,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 07:48:04,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:48:04,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:48:04,227 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-11-19 07:48:04,227 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-11-19 07:48:04,743 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:48:04,749 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:48:04,922 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:48:10,080 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:48:10,103 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:48:10,105 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:48:10,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:10 BoogieIcfgContainer [2023-11-19 07:48:10,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:48:10,127 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:48:10,127 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:48:10,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:48:10,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:48:01" (1/3) ... [2023-11-19 07:48:10,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d851e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:10, skipping insertion in model container [2023-11-19 07:48:10,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (2/3) ... [2023-11-19 07:48:10,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d851e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:10, skipping insertion in model container [2023-11-19 07:48:10,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:10" (3/3) ... [2023-11-19 07:48:10,137 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2023-11-19 07:48:10,158 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:48:10,159 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:48:10,253 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:48:10,262 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;@1816b3ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:48:10,263 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:48:10,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 782 states, 564 states have (on average 1.3528368794326242) internal successors, (763), 577 states have internal predecessors, (763), 174 states have call successors, (174), 43 states have call predecessors, (174), 42 states have return successors, (170), 167 states have call predecessors, (170), 170 states have call successors, (170) [2023-11-19 07:48:10,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 07:48:10,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:10,299 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:10,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:10,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:10,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1636781348, now seen corresponding path program 1 times [2023-11-19 07:48:10,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:10,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930727466] [2023-11-19 07:48:10,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:10,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:11,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:48:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:11,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:48:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:11,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:48:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:11,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:48:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:11,237 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:48:11,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:11,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930727466] [2023-11-19 07:48:11,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930727466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:11,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:11,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:48:11,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963037406] [2023-11-19 07:48:11,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:11,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:48:11,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:11,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:48:11,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:11,295 INFO L87 Difference]: Start difference. First operand has 782 states, 564 states have (on average 1.3528368794326242) internal successors, (763), 577 states have internal predecessors, (763), 174 states have call successors, (174), 43 states have call predecessors, (174), 42 states have return successors, (170), 167 states have call predecessors, (170), 170 states have call successors, (170) Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 07:48:13,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:15,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:20,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:20,496 INFO L93 Difference]: Finished difference Result 2433 states and 3554 transitions. [2023-11-19 07:48:20,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:48:20,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 45 [2023-11-19 07:48:20,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:20,538 INFO L225 Difference]: With dead ends: 2433 [2023-11-19 07:48:20,538 INFO L226 Difference]: Without dead ends: 1640 [2023-11-19 07:48:20,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:48:20,575 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 1613 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 823 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1760 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 823 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:20,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1760 Valid, 2731 Invalid, 1901 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [823 Valid, 1076 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2023-11-19 07:48:20,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2023-11-19 07:48:20,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1488. [2023-11-19 07:48:20,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1078 states have (on average 1.3358070500927643) internal successors, (1440), 1092 states have internal predecessors, (1440), 327 states have call successors, (327), 83 states have call predecessors, (327), 82 states have return successors, (326), 320 states have call predecessors, (326), 326 states have call successors, (326) [2023-11-19 07:48:20,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2093 transitions. [2023-11-19 07:48:20,853 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2093 transitions. Word has length 45 [2023-11-19 07:48:20,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:20,854 INFO L495 AbstractCegarLoop]: Abstraction has 1488 states and 2093 transitions. [2023-11-19 07:48:20,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 07:48:20,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2093 transitions. [2023-11-19 07:48:20,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 07:48:20,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:20,869 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:20,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:48:20,870 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:20,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:20,871 INFO L85 PathProgramCache]: Analyzing trace with hash -707443587, now seen corresponding path program 1 times [2023-11-19 07:48:20,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:20,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786071575] [2023-11-19 07:48:20,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:20,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:48:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:48:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:48:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:48:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-19 07:48:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 07:48:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:48:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,884 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:48:21,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:21,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786071575] [2023-11-19 07:48:21,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786071575] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:21,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:21,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:48:21,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291642041] [2023-11-19 07:48:21,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:21,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:48:21,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:21,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:48:21,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:48:21,894 INFO L87 Difference]: Start difference. First operand 1488 states and 2093 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:48:24,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:26,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:29,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:31,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:35,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:35,102 INFO L93 Difference]: Finished difference Result 4741 states and 6775 transitions. [2023-11-19 07:48:35,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:48:35,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2023-11-19 07:48:35,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:35,132 INFO L225 Difference]: With dead ends: 4741 [2023-11-19 07:48:35,132 INFO L226 Difference]: Without dead ends: 3255 [2023-11-19 07:48:35,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:48:35,142 INFO L413 NwaCegarLoop]: 1035 mSDtfsCounter, 1587 mSDsluCounter, 3656 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 786 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 4691 SdHoareTripleChecker+Invalid, 2565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 786 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:35,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1728 Valid, 4691 Invalid, 2565 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [786 Valid, 1775 Invalid, 4 Unknown, 0 Unchecked, 12.8s Time] [2023-11-19 07:48:35,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2023-11-19 07:48:35,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 2995. [2023-11-19 07:48:35,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2995 states, 2169 states have (on average 1.334716459197787) internal successors, (2895), 2205 states have internal predecessors, (2895), 649 states have call successors, (649), 165 states have call predecessors, (649), 176 states have return successors, (703), 640 states have call predecessors, (703), 648 states have call successors, (703) [2023-11-19 07:48:35,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 4247 transitions. [2023-11-19 07:48:35,402 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 4247 transitions. Word has length 68 [2023-11-19 07:48:35,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:35,403 INFO L495 AbstractCegarLoop]: Abstraction has 2995 states and 4247 transitions. [2023-11-19 07:48:35,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:48:35,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 4247 transitions. [2023-11-19 07:48:35,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-19 07:48:35,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:35,417 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:35,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:48:35,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:35,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:35,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1071087041, now seen corresponding path program 1 times [2023-11-19 07:48:35,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:35,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763706149] [2023-11-19 07:48:35,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:35,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:35,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:48:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:35,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:48:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:35,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:48:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:35,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:48:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:35,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:48:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:35,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:48:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:36,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-19 07:48:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:48:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:36,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:48:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:36,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:48:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:36,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:48:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:36,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:48:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:36,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:48:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:36,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-19 07:48:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:36,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-19 07:48:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:36,172 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-19 07:48:36,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:36,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763706149] [2023-11-19 07:48:36,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763706149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:36,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:36,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:48:36,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395138063] [2023-11-19 07:48:36,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:36,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:48:36,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:36,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:48:36,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:48:36,176 INFO L87 Difference]: Start difference. First operand 2995 states and 4247 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 07:48:38,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:40,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:42,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:46,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:48,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:50,289 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 []