./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme --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 cb8f0ebb3c2471fcffc912ab6e7b9ec5c4e0cbee8604050053df01c587aed5a7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:50:30,398 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:50:30,511 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-26 11:50:30,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:50:30,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:50:30,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:50:30,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:50:30,566 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:50:30,567 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:50:30,574 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:50:30,575 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:50:30,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:50:30,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:50:30,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:50:30,579 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:50:30,579 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:50:30,580 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:50:30,580 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:50:30,581 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:50:30,581 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:50:30,582 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:50:30,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:50:30,583 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:50:30,583 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:50:30,584 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:50:30,584 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:50:30,585 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:50:30,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:50:30,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:50:30,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:50:30,587 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:50:30,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:50:30,588 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:50:30,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:50:30,588 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:50:30,588 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:50:30,589 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:50:30,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:50:30,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:50:30,589 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_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb8f0ebb3c2471fcffc912ab6e7b9ec5c4e0cbee8604050053df01c587aed5a7 [2023-11-26 11:50:30,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:50:30,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:50:30,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:50:30,954 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:50:30,954 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:50:30,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2023-11-26 11:50:34,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:50:34,627 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:50:34,628 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2023-11-26 11:50:34,668 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme/data/02070649e/4370a431842a461da6befdd188808a45/FLAG545a55ad3 [2023-11-26 11:50:34,688 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme/data/02070649e/4370a431842a461da6befdd188808a45 [2023-11-26 11:50:34,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:50:34,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:50:34,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:50:34,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:50:34,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:50:34,706 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:50:34" (1/1) ... [2023-11-26 11:50:34,707 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fd6c5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:34, skipping insertion in model container [2023-11-26 11:50:34,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:50:34" (1/1) ... [2023-11-26 11:50:34,842 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:50:36,126 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_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i[158757,158770] [2023-11-26 11:50:36,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:50:36,225 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:50:36,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [2775-2776] [2023-11-26 11:50:36,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [2794] [2023-11-26 11:50:36,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2797] [2023-11-26 11:50:36,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2800] [2023-11-26 11:50:36,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2803] [2023-11-26 11:50:36,457 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)ep->ep_list.next) [3806] [2023-11-26 11:50:36,458 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)ep->ep_list.next) [3828] [2023-11-26 11:50:36,573 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_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i[158757,158770] [2023-11-26 11:50:36,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:50:36,672 WARN L675 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:36,672 WARN L675 CHandler]: The function kmem_cache_alloc_notrace is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:36,673 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:36,681 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:50:36,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:36 WrapperNode [2023-11-26 11:50:36,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:50:36,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:50:36,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:50:36,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:50:36,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:36" (1/1) ... [2023-11-26 11:50:36,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:36" (1/1) ... [2023-11-26 11:50:37,022 INFO L138 Inliner]: procedures = 191, calls = 1310, calls flagged for inlining = 86, calls inlined = 86, statements flattened = 3692 [2023-11-26 11:50:37,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:50:37,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:50:37,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:50:37,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:50:37,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:36" (1/1) ... [2023-11-26 11:50:37,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:36" (1/1) ... [2023-11-26 11:50:37,077 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:36" (1/1) ... [2023-11-26 11:50:37,905 INFO L175 MemorySlicer]: Split 655 memory accesses to 15 slices as follows [2, 25, 19, 6, 2, 12, 3, 1, 13, 2, 15, 21, 0, 5, 529]. 81 percent of accesses are in the largest equivalence class. The 189 initializations are split as follows [2, 25, 8, 1, 0, 12, 0, 0, 8, 0, 0, 21, 0, 2, 110]. The 206 writes are split as follows [0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 12, 0, 0, 0, 193]. [2023-11-26 11:50:37,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:36" (1/1) ... [2023-11-26 11:50:37,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:36" (1/1) ... [2023-11-26 11:50:38,058 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:36" (1/1) ... [2023-11-26 11:50:38,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:36" (1/1) ... [2023-11-26 11:50:38,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:36" (1/1) ... [2023-11-26 11:50:38,149 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:36" (1/1) ... [2023-11-26 11:50:38,187 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:50:38,189 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:50:38,189 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:50:38,189 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:50:38,190 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:36" (1/1) ... [2023-11-26 11:50:38,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:50:38,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:50:38,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:50:38,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0a5304-c64c-4063-b7c8-fc7ebb2f4d23/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:50:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2023-11-26 11:50:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2023-11-26 11:50:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-26 11:50:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-26 11:50:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-26 11:50:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-26 11:50:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-26 11:50:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-26 11:50:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-26 11:50:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-26 11:50:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-26 11:50:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-26 11:50:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-26 11:50:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-26 11:50:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-26 11:50:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-26 11:50:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-26 11:50:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-26 11:50:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-26 11:50:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-11-26 11:50:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2023-11-26 11:50:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-26 11:50:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-26 11:50:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-26 11:50:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-26 11:50:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-26 11:50:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-26 11:50:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-26 11:50:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-26 11:50:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-26 11:50:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-26 11:50:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-26 11:50:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-26 11:50:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-11-26 11:50:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2023-11-26 11:50:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2023-11-26 11:50:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-26 11:50:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-26 11:50:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-26 11:50:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-26 11:50:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-26 11:50:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-26 11:50:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-26 11:50:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-26 11:50:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-26 11:50:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-26 11:50:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-26 11:50:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-26 11:50:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-26 11:50:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-11-26 11:50:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2023-11-26 11:50:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:50:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:50:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:50:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:50:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:50:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:50:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 11:50:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 11:50:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-26 11:50:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-26 11:50:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-26 11:50:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-26 11:50:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-26 11:50:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-26 11:50:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-26 11:50:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2023-11-26 11:50:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2023-11-26 11:50:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2023-11-26 11:50:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2023-11-26 11:50:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-26 11:50:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-26 11:50:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-26 11:50:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-26 11:50:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-26 11:50:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-26 11:50:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-26 11:50:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-26 11:50:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-26 11:50:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2023-11-26 11:50:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2023-11-26 11:50:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2023-11-26 11:50:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2023-11-26 11:50:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2023-11-26 11:50:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2023-11-26 11:50:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-26 11:50:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-26 11:50:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-26 11:50:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-26 11:50:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-26 11:50:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-26 11:50:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-26 11:50:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-26 11:50:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-26 11:50:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2023-11-26 11:50:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2023-11-26 11:50:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2023-11-26 11:50:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2023-11-26 11:50:38,301 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2023-11-26 11:50:38,301 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2023-11-26 11:50:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2023-11-26 11:50:38,301 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2023-11-26 11:50:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2023-11-26 11:50:38,301 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2023-11-26 11:50:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-26 11:50:38,302 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-26 11:50:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-26 11:50:38,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-26 11:50:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2023-11-26 11:50:38,303 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2023-11-26 11:50:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2023-11-26 11:50:38,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2023-11-26 11:50:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2023-11-26 11:50:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2023-11-26 11:50:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-26 11:50:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-26 11:50:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2023-11-26 11:50:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2023-11-26 11:50:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2023-11-26 11:50:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2023-11-26 11:50:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2023-11-26 11:50:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2023-11-26 11:50:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:50:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:50:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:50:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:50:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:50:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:50:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 11:50:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 11:50:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-26 11:50:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-26 11:50:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-26 11:50:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-26 11:50:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-26 11:50:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-26 11:50:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-26 11:50:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-26 11:50:38,308 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-26 11:50:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-26 11:50:38,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-26 11:50:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2023-11-26 11:50:38,312 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2023-11-26 11:50:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2023-11-26 11:50:38,313 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2023-11-26 11:50:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2023-11-26 11:50:38,314 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2023-11-26 11:50:38,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-26 11:50:38,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-26 11:50:38,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-26 11:50:38,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-26 11:50:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2023-11-26 11:50:38,321 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2023-11-26 11:50:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:50:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-11-26 11:50:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2023-11-26 11:50:38,321 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2023-11-26 11:50:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2023-11-26 11:50:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-26 11:50:38,321 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-26 11:50:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2023-11-26 11:50:38,322 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2023-11-26 11:50:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-26 11:50:38,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-26 11:50:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:50:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2023-11-26 11:50:38,322 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2023-11-26 11:50:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2023-11-26 11:50:38,322 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2023-11-26 11:50:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:50:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:50:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:50:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:50:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:50:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 11:50:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 11:50:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 11:50:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-26 11:50:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-26 11:50:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-26 11:50:38,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-26 11:50:38,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-26 11:50:38,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-26 11:50:38,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-26 11:50:38,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-26 11:50:38,324 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-26 11:50:38,324 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-26 11:50:38,324 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-26 11:50:38,324 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2023-11-26 11:50:38,325 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2023-11-26 11:50:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2023-11-26 11:50:38,325 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2023-11-26 11:50:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:50:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:50:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 11:50:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 11:50:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 11:50:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 11:50:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 11:50:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-26 11:50:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-26 11:50:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-26 11:50:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-26 11:50:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-26 11:50:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-26 11:50:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-26 11:50:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-26 11:50:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2023-11-26 11:50:38,327 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2023-11-26 11:50:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2023-11-26 11:50:38,327 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2023-11-26 11:50:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2023-11-26 11:50:38,327 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2023-11-26 11:50:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-26 11:50:38,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-26 11:50:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-26 11:50:38,327 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-26 11:50:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-26 11:50:38,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-26 11:50:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-26 11:50:38,329 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-26 11:50:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-26 11:50:38,329 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-26 11:50:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-26 11:50:38,330 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-26 11:50:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2023-11-26 11:50:38,330 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2023-11-26 11:50:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:50:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 11:50:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 11:50:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-26 11:50:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-26 11:50:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-26 11:50:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-26 11:50:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-26 11:50:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-26 11:50:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-26 11:50:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-26 11:50:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-26 11:50:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-26 11:50:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-26 11:50:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-26 11:50:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-26 11:50:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2023-11-26 11:50:38,332 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2023-11-26 11:50:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-26 11:50:38,332 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-26 11:50:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2023-11-26 11:50:38,332 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2023-11-26 11:50:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-26 11:50:38,332 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-26 11:50:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-26 11:50:38,333 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-26 11:50:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-26 11:50:38,333 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-26 11:50:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2023-11-26 11:50:38,333 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2023-11-26 11:50:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-26 11:50:38,333 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-26 11:50:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2023-11-26 11:50:38,333 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2023-11-26 11:50:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-26 11:50:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-26 11:50:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-26 11:50:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-26 11:50:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2023-11-26 11:50:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2023-11-26 11:50:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2023-11-26 11:50:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2023-11-26 11:50:38,339 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-26 11:50:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-26 11:50:38,339 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-26 11:50:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-26 11:50:38,339 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2023-11-26 11:50:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2023-11-26 11:50:38,339 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-26 11:50:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-26 11:50:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2023-11-26 11:50:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2023-11-26 11:50:38,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:50:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:50:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:50:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:50:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:50:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:50:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 11:50:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 11:50:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-26 11:50:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-26 11:50:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-26 11:50:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-26 11:50:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-26 11:50:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-26 11:50:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-26 11:50:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-26 11:50:38,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-26 11:50:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-26 11:50:38,343 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-26 11:50:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-26 11:50:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-26 11:50:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-26 11:50:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-26 11:50:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-26 11:50:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-26 11:50:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-26 11:50:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-26 11:50:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-26 11:50:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-26 11:50:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-26 11:50:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-26 11:50:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-11-26 11:50:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2023-11-26 11:50:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2023-11-26 11:50:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-26 11:50:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-26 11:50:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-26 11:50:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-26 11:50:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:50:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:50:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-26 11:50:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-26 11:50:39,096 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:50:39,102 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:50:47,940 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:50:48,235 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:50:48,236 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:50:48,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:50:48 BoogieIcfgContainer [2023-11-26 11:50:48,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:50:48,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:50:48,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:50:48,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:50:48,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:50:34" (1/3) ... [2023-11-26 11:50:48,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16111714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:50:48, skipping insertion in model container [2023-11-26 11:50:48,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:36" (2/3) ... [2023-11-26 11:50:48,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16111714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:50:48, skipping insertion in model container [2023-11-26 11:50:48,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:50:48" (3/3) ... [2023-11-26 11:50:48,248 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2023-11-26 11:50:48,268 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:50:48,268 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:50:48,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:50:48,372 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;@610276f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:50:48,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:50:48,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 1232 states, 805 states have (on average 1.448447204968944) internal successors, (1166), 843 states have internal predecessors, (1166), 358 states have call successors, (358), 67 states have call predecessors, (358), 67 states have return successors, (358), 355 states have call predecessors, (358), 358 states have call successors, (358) [2023-11-26 11:50:48,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-26 11:50:48,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:50:48,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:48,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:50:48,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:48,398 INFO L85 PathProgramCache]: Analyzing trace with hash 710798111, now seen corresponding path program 1 times [2023-11-26 11:50:48,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:48,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071060745] [2023-11-26 11:50:48,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:48,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:50,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:50,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:50:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:50,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:50,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:50,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071060745] [2023-11-26 11:50:50,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071060745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:50,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:50,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:50:50,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76636011] [2023-11-26 11:50:50,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:50,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:50:50,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:50,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:50:50,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:50:50,936 INFO L87 Difference]: Start difference. First operand has 1232 states, 805 states have (on average 1.448447204968944) internal successors, (1166), 843 states have internal predecessors, (1166), 358 states have call successors, (358), 67 states have call predecessors, (358), 67 states have return successors, (358), 355 states have call predecessors, (358), 358 states have call successors, (358) Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:50:55,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:50:59,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:51:06,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:06,779 INFO L93 Difference]: Finished difference Result 4015 states and 6315 transitions. [2023-11-26 11:51:06,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:51:06,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-11-26 11:51:06,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:06,828 INFO L225 Difference]: With dead ends: 4015 [2023-11-26 11:51:06,828 INFO L226 Difference]: Without dead ends: 2783 [2023-11-26 11:51:06,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:51:06,847 INFO L413 NwaCegarLoop]: 1432 mSDtfsCounter, 2868 mSDsluCounter, 1758 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 1025 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3213 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 2802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1025 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:06,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3213 Valid, 3190 Invalid, 2802 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1025 Valid, 1775 Invalid, 2 Unknown, 0 Unchecked, 15.3s Time] [2023-11-26 11:51:06,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2023-11-26 11:51:07,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2260. [2023-11-26 11:51:07,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2260 states, 1464 states have (on average 1.4132513661202186) internal successors, (2069), 1518 states have internal predecessors, (2069), 671 states have call successors, (671), 126 states have call predecessors, (671), 124 states have return successors, (662), 655 states have call predecessors, (662), 662 states have call successors, (662) [2023-11-26 11:51:07,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 3402 transitions. [2023-11-26 11:51:07,121 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 3402 transitions. Word has length 15 [2023-11-26 11:51:07,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:07,122 INFO L495 AbstractCegarLoop]: Abstraction has 2260 states and 3402 transitions. [2023-11-26 11:51:07,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:51:07,122 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 3402 transitions. [2023-11-26 11:51:07,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-26 11:51:07,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:07,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:07,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:51:07,125 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:07,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:07,126 INFO L85 PathProgramCache]: Analyzing trace with hash 558821070, now seen corresponding path program 1 times [2023-11-26 11:51:07,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:07,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58509355] [2023-11-26 11:51:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:07,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:08,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:51:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:08,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:51:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:08,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:08,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:08,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58509355] [2023-11-26 11:51:08,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58509355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:08,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:08,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:51:08,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239988074] [2023-11-26 11:51:08,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:08,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:51:08,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:08,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:51:08,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:51:08,745 INFO L87 Difference]: Start difference. First operand 2260 states and 3402 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:51:12,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:51:16,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []