./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 cf1a7837 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_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl/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_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl --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-cf1a783 [2023-11-12 02:28:56,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:28:56,157 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:28:56,164 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:28:56,165 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:28:56,200 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:28:56,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:28:56,201 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:28:56,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:28:56,203 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:28:56,204 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:28:56,205 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:28:56,205 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:28:56,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:28:56,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:28:56,211 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:28:56,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:28:56,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:28:56,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:28:56,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:28:56,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:28:56,214 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:28:56,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:28:56,217 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:28:56,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:28:56,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:28:56,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:28:56,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:28:56,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:28:56,220 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:28:56,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:28:56,222 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:28:56,223 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:28:56,223 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:28:56,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:28:56,224 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:28:56,224 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_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef [2023-11-12 02:28:56,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:28:56,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:28:56,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:28:56,582 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:28:56,583 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:28:56,585 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl/../../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 [2023-11-12 02:28:59,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:29:00,406 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:29:00,406 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672f57e0-aa79-4b66-8e15-141dd4df4fe2/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 [2023-11-12 02:29:00,470 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl/data/a3ce172da/48eef53155d84cbf913ca4962170dccf/FLAG8acca1550 [2023-11-12 02:29:00,488 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl/data/a3ce172da/48eef53155d84cbf913ca4962170dccf [2023-11-12 02:29:00,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:29:00,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:29:00,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:29:00,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:29:00,507 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:29:00,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:29:00" (1/1) ... [2023-11-12 02:29:00,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70afe755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:00, skipping insertion in model container [2023-11-12 02:29:00,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:29:00" (1/1) ... [2023-11-12 02:29:00,695 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:29:03,150 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_672f57e0-aa79-4b66-8e15-141dd4df4fe2/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] [2023-11-12 02:29:03,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:29:03,229 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:29:03,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [3507] [2023-11-12 02:29:03,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [3635] [2023-11-12 02:29:03,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [3642] [2023-11-12 02:29:03,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [4961] [2023-11-12 02:29:03,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6300] [2023-11-12 02:29:03,833 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [9460] [2023-11-12 02:29:03,867 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_672f57e0-aa79-4b66-8e15-141dd4df4fe2/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] [2023-11-12 02:29:03,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:29:03,955 WARN L672 CHandler]: The function ldv_calloc is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:29:03,963 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:29:03,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:03 WrapperNode [2023-11-12 02:29:03,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:29:03,965 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:29:03,965 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:29:03,965 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:29:03,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:03" (1/1) ... [2023-11-12 02:29:04,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:03" (1/1) ... [2023-11-12 02:29:04,435 INFO L138 Inliner]: procedures = 274, calls = 6062, calls flagged for inlining = 107, calls inlined = 80, statements flattened = 6919 [2023-11-12 02:29:04,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:29:04,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:29:04,444 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:29:04,444 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:29:04,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:03" (1/1) ... [2023-11-12 02:29:04,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:03" (1/1) ... [2023-11-12 02:29:04,489 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:03" (1/1) ... [2023-11-12 02:29:04,490 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:03" (1/1) ... [2023-11-12 02:29:04,624 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:03" (1/1) ... [2023-11-12 02:29:04,780 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:03" (1/1) ... [2023-11-12 02:29:04,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:03" (1/1) ... [2023-11-12 02:29:04,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:03" (1/1) ... [2023-11-12 02:29:04,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:29:04,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:29:04,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:29:04,879 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:29:04,880 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:03" (1/1) ... [2023-11-12 02:29:04,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:29:04,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:29:04,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:29:04,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672f57e0-aa79-4b66-8e15-141dd4df4fe2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:29:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure ep0_queue_status_stage [2023-11-12 02:29:04,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ep0_queue_status_stage [2023-11-12 02:29:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure ep0_queue [2023-11-12 02:29:04,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ep0_queue [2023-11-12 02:29:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure ep_bd_list_free [2023-11-12 02:29:04,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_bd_list_free [2023-11-12 02:29:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 02:29:04,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 02:29:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure init_ep [2023-11-12 02:29:04,976 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ep [2023-11-12 02:29:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 02:29:04,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 02:29:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-11-12 02:29:04,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-11-12 02:29:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-12 02:29:04,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-12 02:29:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_reset [2023-11-12 02:29:04,977 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_reset [2023-11-12 02:29:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:29:04,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:29:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-12 02:29:04,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-12 02:29:04,979 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_disable [2023-11-12 02:29:04,980 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_disable [2023-11-12 02:29:04,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_del_gadget_udc [2023-11-12 02:29:04,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_del_gadget_udc [2023-11-12 02:29:04,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:29:04,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:29:04,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:29:04,982 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:29:04,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2023-11-12 02:29:04,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2023-11-12 02:29:04,983 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:29:04,983 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:29:04,983 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2023-11-12 02:29:04,983 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2023-11-12 02:29:04,984 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_req_complete [2023-11-12 02:29:04,984 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_req_complete [2023-11-12 02:29:04,984 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_free_request [2023-11-12 02:29:04,984 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_free_request [2023-11-12 02:29:04,984 INFO L130 BoogieDeclarations]: Found specification of procedure bd_add_to_bdi [2023-11-12 02:29:04,985 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_add_to_bdi [2023-11-12 02:29:04,985 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_remove [2023-11-12 02:29:04,985 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_remove [2023-11-12 02:29:04,985 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2023-11-12 02:29:04,985 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2023-11-12 02:29:04,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:29:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-12 02:29:04,986 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-12 02:29:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_stop [2023-11-12 02:29:04,986 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_stop [2023-11-12 02:29:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:29:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-12 02:29:04,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-12 02:29:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 02:29:04,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 02:29:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_isoc [2023-11-12 02:29:04,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_isoc [2023-11-12 02:29:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 02:29:04,988 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 02:29:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:29:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:29:04,989 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_free_ep [2023-11-12 02:29:04,989 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_free_ep [2023-11-12 02:29:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 02:29:04,990 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 02:29:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_notify_xfr [2023-11-12 02:29:04,991 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_notify_xfr [2023-11-12 02:29:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-12 02:29:04,992 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-12 02:29:04,992 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 02:29:04,992 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 02:29:04,992 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_stop_ep [2023-11-12 02:29:04,992 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_stop_ep [2023-11-12 02:29:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-12 02:29:04,993 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-12 02:29:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_set_stall [2023-11-12 02:29:04,993 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_set_stall [2023-11-12 02:29:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 02:29:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 02:29:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_map_request [2023-11-12 02:29:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_map_request [2023-11-12 02:29:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_mem_free [2023-11-12 02:29:04,995 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_mem_free [2023-11-12 02:29:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_dbg_bd_list [2023-11-12 02:29:04,995 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_dbg_bd_list [2023-11-12 02:29:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure ep_set_halt [2023-11-12 02:29:04,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_set_halt [2023-11-12 02:29:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-12 02:29:04,996 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-12 02:29:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_to_tbi [2023-11-12 02:29:04,997 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_to_tbi [2023-11-12 02:29:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-12 02:29:04,997 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-12 02:29:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:29:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_mem_init [2023-11-12 02:29:04,998 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_mem_init [2023-11-12 02:29:04,998 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_config_ep [2023-11-12 02:29:04,998 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_config_ep [2023-11-12 02:29:04,998 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_enable [2023-11-12 02:29:04,998 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_enable [2023-11-12 02:29:04,998 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_queue_xfr [2023-11-12 02:29:04,999 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_queue_xfr [2023-11-12 02:29:04,999 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_hw_exit [2023-11-12 02:29:04,999 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_hw_exit [2023-11-12 02:29:04,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-12 02:29:05,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-12 02:29:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 02:29:05,000 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 02:29:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_disable [2023-11-12 02:29:05,001 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_disable [2023-11-12 02:29:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-12 02:29:05,001 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-12 02:29:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:29:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-12 02:29:05,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-12 02:29:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-12 02:29:05,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-12 02:29:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:29:05,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:29:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-12 02:29:05,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-12 02:29:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:29:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2023-11-12 02:29:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-12 02:29:05,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-12 02:29:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2023-11-12 02:29:05,005 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2023-11-12 02:29:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:29:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_dequeue [2023-11-12 02:29:05,005 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_dequeue [2023-11-12 02:29:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_state [2023-11-12 02:29:05,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_state [2023-11-12 02:29:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 02:29:05,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 02:29:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:29:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_start [2023-11-12 02:29:05,008 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_start [2023-11-12 02:29:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure poll_oip [2023-11-12 02:29:05,008 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_oip [2023-11-12 02:29:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2023-11-12 02:29:05,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2023-11-12 02:29:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_stop [2023-11-12 02:29:05,009 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_stop [2023-11-12 02:29:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_softconn [2023-11-12 02:29:05,009 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_softconn [2023-11-12 02:29:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_run [2023-11-12 02:29:05,010 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_run [2023-11-12 02:29:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2023-11-12 02:29:05,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2023-11-12 02:29:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_submit_cmd [2023-11-12 02:29:05,015 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_submit_cmd [2023-11-12 02:29:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_wakeup [2023-11-12 02:29:05,017 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_wakeup [2023-11-12 02:29:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-12 02:29:05,018 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-12 02:29:05,018 INFO L130 BoogieDeclarations]: Found specification of procedure find_end_bdi [2023-11-12 02:29:05,018 INFO L138 BoogieDeclarations]: Found implementation of procedure find_end_bdi [2023-11-12 02:29:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_to_bd [2023-11-12 02:29:05,024 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_to_bd [2023-11-12 02:29:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-12 02:29:05,024 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-12 02:29:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:29:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_writel [2023-11-12 02:29:05,025 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_writel [2023-11-12 02:29:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:29:05,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:29:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure chain_table [2023-11-12 02:29:05,025 INFO L138 BoogieDeclarations]: Found implementation of procedure chain_table [2023-11-12 02:29:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_readl [2023-11-12 02:29:05,026 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_readl [2023-11-12 02:29:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_enable [2023-11-12 02:29:05,026 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_enable [2023-11-12 02:29:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 02:29:05,026 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 02:29:05,027 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_probe [2023-11-12 02:29:05,027 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_probe [2023-11-12 02:29:05,836 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:29:05,841 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:29:07,915 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 02:29:19,336 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:29:19,369 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:29:19,369 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:29:19,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:29:19 BoogieIcfgContainer [2023-11-12 02:29:19,374 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:29:19,378 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:29:19,378 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:29:19,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:29:19,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:29:00" (1/3) ... [2023-11-12 02:29:19,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616b512d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:29:19, skipping insertion in model container [2023-11-12 02:29:19,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:03" (2/3) ... [2023-11-12 02:29:19,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616b512d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:29:19, skipping insertion in model container [2023-11-12 02:29:19,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:29:19" (3/3) ... [2023-11-12 02:29:19,386 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 [2023-11-12 02:29:19,406 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:29:19,406 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:29:19,531 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:29:19,539 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;@36ed06fa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:29:19,540 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:29:19,556 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) [2023-11-12 02:29:19,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-12 02:29:19,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:29:19,581 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] [2023-11-12 02:29:19,581 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:29:19,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:29:19,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1551100960, now seen corresponding path program 1 times [2023-11-12 02:29:19,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:29:19,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240083981] [2023-11-12 02:29:19,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:29:19,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:29:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:20,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:29:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:20,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:29:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:20,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:29:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:20,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:29:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:20,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:29:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:20,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-12 02:29:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:20,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:29:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:20,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-12 02:29:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:20,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:29:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:29:20,946 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-12 02:29:20,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:29:20,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240083981] [2023-11-12 02:29:20,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240083981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:29:20,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:29:20,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:29:20,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705259693] [2023-11-12 02:29:20,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:29:20,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:29:20,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:29:20,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:29:20,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:29:21,005 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) [2023-11-12 02:29:31,383 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 [] [2023-11-12 02:29:33,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:29:35,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:29:43,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:29:45,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:29:47,404 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 []