./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/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_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/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_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/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 f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:44,176 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:44,281 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:55:44,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:44,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:44,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:44,337 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:44,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:44,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:44,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:44,340 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:44,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:44,341 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:44,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:44,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:55:44,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:44,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:44,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:55:44,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:44,346 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:55:44,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:44,352 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:44,352 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:44,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:44,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:44,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:44,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:44,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:44,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:55:44,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:44,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:55:44,357 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:44,357 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:55:44,358 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:44,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:44,358 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:44,359 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_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef [2023-11-19 07:55:44,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:44,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:44,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:44,657 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:44,658 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:44,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2023-11-19 07:55:47,837 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:48,435 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:48,436 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2023-11-19 07:55:48,491 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/bin/uautomizer-verify-uCwYo4JHxu/data/d97c69d0f/dea2fd9fdc52439eb898dd655126d931/FLAG8a896b5f1 [2023-11-19 07:55:48,506 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/bin/uautomizer-verify-uCwYo4JHxu/data/d97c69d0f/dea2fd9fdc52439eb898dd655126d931 [2023-11-19 07:55:48,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:48,514 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:48,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:48,517 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:48,522 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:48,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:48" (1/1) ... [2023-11-19 07:55:48,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c17e53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:48, skipping insertion in model container [2023-11-19 07:55:48,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:48" (1/1) ... [2023-11-19 07:55:48,703 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:51,348 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_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i[338700,338713] [2023-11-19 07:55:51,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:51,444 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:51,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [3507] [2023-11-19 07:55:51,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [3635] [2023-11-19 07:55:51,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [3642] [2023-11-19 07:55:51,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [4961] [2023-11-19 07:55:51,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6300] [2023-11-19 07:55:52,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [9460] [2023-11-19 07:55:52,089 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_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i[338700,338713] [2023-11-19 07:55:52,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:52,198 WARN L675 CHandler]: The function ldv_calloc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:55:52,206 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:52,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52 WrapperNode [2023-11-19 07:55:52,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:52,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:52,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:52,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:52,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:52,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:52,726 INFO L138 Inliner]: procedures = 274, calls = 6062, calls flagged for inlining = 107, calls inlined = 80, statements flattened = 6919 [2023-11-19 07:55:52,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:52,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:52,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:52,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:52,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:52,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:52,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:52,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:52,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:53,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:53,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:53,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:53,094 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:53,095 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:53,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:53,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:53,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:53,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:53,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:53,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:53,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72d91e9-fe93-4a96-bc52-97f1611e7ec1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure ep0_queue_status_stage [2023-11-19 07:55:53,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ep0_queue_status_stage [2023-11-19 07:55:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure ep0_queue [2023-11-19 07:55:53,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ep0_queue [2023-11-19 07:55:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure ep_bd_list_free [2023-11-19 07:55:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_bd_list_free [2023-11-19 07:55:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:55:53,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:55:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure init_ep [2023-11-19 07:55:53,183 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ep [2023-11-19 07:55:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 07:55:53,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 07:55:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-11-19 07:55:53,184 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-11-19 07:55:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 07:55:53,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 07:55:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_reset [2023-11-19 07:55:53,184 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_reset [2023-11-19 07:55:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:55:53,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:55:53,185 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-19 07:55:53,186 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-19 07:55:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_disable [2023-11-19 07:55:53,186 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_disable [2023-11-19 07:55:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure usb_del_gadget_udc [2023-11-19 07:55:53,186 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_del_gadget_udc [2023-11-19 07:55:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:55:53,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:55:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:55:53,188 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:55:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2023-11-19 07:55:53,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2023-11-19 07:55:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:55:53,190 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:55:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2023-11-19 07:55:53,190 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2023-11-19 07:55:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_req_complete [2023-11-19 07:55:53,191 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_req_complete [2023-11-19 07:55:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_free_request [2023-11-19 07:55:53,191 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_free_request [2023-11-19 07:55:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure bd_add_to_bdi [2023-11-19 07:55:53,192 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_add_to_bdi [2023-11-19 07:55:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_remove [2023-11-19 07:55:53,192 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_remove [2023-11-19 07:55:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2023-11-19 07:55:53,192 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2023-11-19 07:55:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:55:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 07:55:53,193 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 07:55:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_stop [2023-11-19 07:55:53,193 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_stop [2023-11-19 07:55:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:55:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 07:55:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 07:55:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 07:55:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 07:55:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_isoc [2023-11-19 07:55:53,195 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_isoc [2023-11-19 07:55:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 07:55:53,195 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 07:55:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:55:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:55:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_free_ep [2023-11-19 07:55:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_free_ep [2023-11-19 07:55:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 07:55:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 07:55:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_notify_xfr [2023-11-19 07:55:53,198 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_notify_xfr [2023-11-19 07:55:53,199 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-19 07:55:53,199 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-19 07:55:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 07:55:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 07:55:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_stop_ep [2023-11-19 07:55:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_stop_ep [2023-11-19 07:55:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 07:55:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 07:55:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_set_stall [2023-11-19 07:55:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_set_stall [2023-11-19 07:55:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 07:55:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 07:55:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_map_request [2023-11-19 07:55:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_map_request [2023-11-19 07:55:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_mem_free [2023-11-19 07:55:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_mem_free [2023-11-19 07:55:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_dbg_bd_list [2023-11-19 07:55:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_dbg_bd_list [2023-11-19 07:55:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure ep_set_halt [2023-11-19 07:55:53,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_set_halt [2023-11-19 07:55:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-19 07:55:53,204 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-19 07:55:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_to_tbi [2023-11-19 07:55:53,204 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_to_tbi [2023-11-19 07:55:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-19 07:55:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-19 07:55:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:55:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_mem_init [2023-11-19 07:55:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_mem_init [2023-11-19 07:55:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_config_ep [2023-11-19 07:55:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_config_ep [2023-11-19 07:55:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_enable [2023-11-19 07:55:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_enable [2023-11-19 07:55:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_queue_xfr [2023-11-19 07:55:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_queue_xfr [2023-11-19 07:55:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_hw_exit [2023-11-19 07:55:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_hw_exit [2023-11-19 07:55:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 07:55:53,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 07:55:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:55:53,207 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:55:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_disable [2023-11-19 07:55:53,208 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_disable [2023-11-19 07:55:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-19 07:55:53,209 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-19 07:55:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:55:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 07:55:53,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 07:55:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-19 07:55:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-19 07:55:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:55:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:55:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 07:55:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 07:55:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:55:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2023-11-19 07:55:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 07:55:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 07:55:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2023-11-19 07:55:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2023-11-19 07:55:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_dequeue [2023-11-19 07:55:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_dequeue [2023-11-19 07:55:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_state [2023-11-19 07:55:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_state [2023-11-19 07:55:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 07:55:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 07:55:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:55:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_start [2023-11-19 07:55:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_start [2023-11-19 07:55:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure poll_oip [2023-11-19 07:55:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_oip [2023-11-19 07:55:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2023-11-19 07:55:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2023-11-19 07:55:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_stop [2023-11-19 07:55:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_stop [2023-11-19 07:55:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_softconn [2023-11-19 07:55:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_softconn [2023-11-19 07:55:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_run [2023-11-19 07:55:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_run [2023-11-19 07:55:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2023-11-19 07:55:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2023-11-19 07:55:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_submit_cmd [2023-11-19 07:55:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_submit_cmd [2023-11-19 07:55:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_wakeup [2023-11-19 07:55:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_wakeup [2023-11-19 07:55:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 07:55:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 07:55:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure find_end_bdi [2023-11-19 07:55:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure find_end_bdi [2023-11-19 07:55:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_to_bd [2023-11-19 07:55:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_to_bd [2023-11-19 07:55:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 07:55:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 07:55:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:55:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_writel [2023-11-19 07:55:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_writel [2023-11-19 07:55:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure chain_table [2023-11-19 07:55:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure chain_table [2023-11-19 07:55:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_readl [2023-11-19 07:55:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_readl [2023-11-19 07:55:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_enable [2023-11-19 07:55:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_enable [2023-11-19 07:55:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 07:55:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 07:55:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_probe [2023-11-19 07:55:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_probe [2023-11-19 07:55:54,054 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:54,057 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:55,840 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:56:06,851 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:56:06,887 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:56:06,888 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:56:06,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:06 BoogieIcfgContainer [2023-11-19 07:56:06,907 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:56:06,911 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:56:06,912 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:56:06,915 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:56:06,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:48" (1/3) ... [2023-11-19 07:56:06,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a62fa4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:06, skipping insertion in model container [2023-11-19 07:56:06,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (2/3) ... [2023-11-19 07:56:06,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a62fa4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:06, skipping insertion in model container [2023-11-19 07:56:06,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:06" (3/3) ... [2023-11-19 07:56:06,921 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2023-11-19 07:56:06,944 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:56:06,944 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:56:07,075 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:56:07,086 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;@7772ccc1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:56:07,086 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:56:07,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 1951 states, 1375 states have (on average 1.36) internal successors, (1870), 1397 states have internal predecessors, (1870), 493 states have call successors, (493), 82 states have call predecessors, (493), 81 states have return successors, (488), 488 states have call predecessors, (488), 488 states have call successors, (488) [2023-11-19 07:56:07,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-19 07:56:07,148 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:07,149 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:07,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:07,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:07,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1551100960, now seen corresponding path program 1 times [2023-11-19 07:56:07,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:07,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894991960] [2023-11-19 07:56:07,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:07,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:08,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:56:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:08,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:08,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:56:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:08,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:56:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:08,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:08,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-19 07:56:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:08,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:08,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-19 07:56:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:08,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:08,502 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-19 07:56:08,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:08,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894991960] [2023-11-19 07:56:08,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894991960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:08,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:08,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:56:08,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770724694] [2023-11-19 07:56:08,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:08,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:56:08,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:08,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:56:08,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:56:08,572 INFO L87 Difference]: Start difference. First operand has 1951 states, 1375 states have (on average 1.36) internal successors, (1870), 1397 states have internal predecessors, (1870), 493 states have call successors, (493), 82 states have call predecessors, (493), 81 states have return successors, (488), 488 states have call predecessors, (488), 488 states have call successors, (488) Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:56:17,364 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 07:56:19,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:56:21,384 WARN L539 Checker$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 07:56:25,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:56:29,414 WARN L539 Checker$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 07:56:31,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:56:33,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []